Academic literature on the topic 'Inverter'

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Journal articles on the topic "Inverter"

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Abdel-Aziz, Ali, Mohamed A. Elgenedy, and Barry Williams. "A Comparative Review of Three Different Power Inverters for DC–AC Applications." Energies 16, no. 21 (October 25, 2023): 7254. http://dx.doi.org/10.3390/en16217254.

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This paper presents a comparative review of three different widely used power inverters, namely the conventional six-switch inverter; the reduced switch count four-switch inverter; and the eight-switch inverter. The later inverter can be reconfigured as a neutral-point diode-clamped inverter at the failure of one inverter leg. The three power inverters are compared and discussed with respect to cost, complexity, losses, common mode voltage, and control techniques. The paper is intended to serve as a guide regarding selecting the appropriate inverter for each specific application. Simulation results are presented to demonstrate the performance of the three power inverters, followed by a comprehensive comparison between the three power inverters.
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Nayeemuddin, M., T. Bramhananda Reddy, and M. Vijaya Kumar. "Level Shifted Discontinuous PWM Algorithms to Minimize Common Mode Voltage for Cascaded Multilevel Inverter Fed Induction Motor Drive." International Journal of Power Electronics and Drive Systems (IJPEDS) 9, no. 2 (June 1, 2018): 504. http://dx.doi.org/10.11591/ijpeds.v9.i2.pp504-518.

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This paper presents combinations of level shifted pulse-width modulation algorithm with conventional discontinuous pulse-width modulation methods for cascaded multilevel inverters. In the proposed DPWM a zero sequence signal is injected in sinusoidal reference signal to generate various modulators with easier implementation. The analysis four various control strategies namely Common Carrier (CC), Inverted Carrier (IC), Phase Shifted (PS) and Inverted Phase Shift (IPS) for cascaded multilevel inverter fed induction motor drive has been illustrated. To validate the proposed work experimental tests has been carried out using dSPACE controller. Experimental study proves that using proposed algorithms reduction in common-mode voltage with fewer harmonics along with reduced switching loss for a cascaded multilevel inverter fed motor drive has been achieved.
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Chinmay V., Deshpande, Deshpande Chaitanya V., and Deokar Sanjay A. "Performance Evaluation of Dynamic Voltage Restorer Based on Transformer-based Z Source Inverter." International Journal of Power Electronics and Drive Systems (IJPEDS) 8, no. 3 (September 1, 2017): 1101. http://dx.doi.org/10.11591/ijpeds.v8.i3.pp1101-1108.

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In this paper, latest technology is introduced in substitution to conventional voltage and current type inverter with Transformer based impedance (Z) source inverter in voltage sag assessment and mitigation and compared with voltage source inverter based dynamic voltage restorer. Transformer based impedance source inverters (Trans-Z source inverters) are newly proposed inverters that can be used to overcome downside of voltage source inverter, current source inverter and impedance source (Z-source) inverter. T-Z source inverter consists of transformer with high frequency and low leakage inductance along with low reactive component compared with conventional Z source inverter. In case of T-Z source inverter, voltage stress throughout Z-source capacitor is reduced along with inrush current limitation at startup. This paper presents modeling of T-Z source inverter based dynamic voltage restorer using MATLAB/SIMULINK software along with its THD analysis which is compared with VSI based dynamic voltage restorer. Here abc to dq0 control algorithm is employed. The control technique which is employed for simulation shows excellent results for voltage sag and swell compensation.
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Iwаszkiewicz, Jаn, and Adam Muc. "The active filtering of the inverter output voltage by use of orthogonal vectors’ control strategy." Renewable Energy and Power Quality Journal 20 (September 2022): 817–21. http://dx.doi.org/10.24084/repqj20.446.

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he paper proposes a creative control method permitting to filter output voltage waveforms of the inverter. The main idea is based on the assumption that the total inverter output space vector is carefully chosen as a composition of two space vectors generated by 2 two-level inverters. The total built-up inverter is assembled of two standard three-phase inverters: a main inverter (MI) and an auxiliary one (AI) serving as an active filter. The output voltage space vector of the built-up inverter is composed of one or two space vectors generated by the respective inverters. The space vectors of the auxiliary inverter are orthogonal to the respective space vectors of the main inverter. The structure and its performance as well as the control method using specified vectors are discussed in the paper.
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Chemseddine, Aicha, Noureddine Benabadji, Ali Cheknane, and Salah Eddine Mankour. "A comparison of single phase standalone square waveform solar inverter topologies: half bridge and full bridge." International Journal of Electrical and Computer Engineering (IJECE) 10, no. 4 (August 1, 2020): 3384. http://dx.doi.org/10.11591/ijece.v10i4.pp3384-3392.

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In stand-alone photovoltaic installations the photovoltaic inverter allows transforming the DC power produced by the photovoltaic modules into an AC power. Depending on the shape of the AC output voltage generated by the inverter there exist three main types of stand-alone PV inverters: pure sine waveform inverters, modulated sine waveform inverters and square waveform inverters and each type of these inverters is also divided into different topologies. In this paper we will be interested and study the square waveform stand-alone inverter topologies which are the half bridge and the full-bridge inverter topologies.
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Gireesh Kumar, Devineni, Nagineni Venkata Sireesha, D. S. Naga Malleswara Rao, Pandla Chinna Dastagiri Goud, Musheer Vaqur, and T. V. V. Pavan kumar. "Optimized Inverter Circuits for Driving Dual AC Loads for Home Solar Water Pumping." E3S Web of Conferences 430 (2023): 01005. http://dx.doi.org/10.1051/e3sconf/202343001005.

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This research presents a generic pulse width modulation (PWM) approach for nine switch inverters and five-leg inverters. The circuit design of both inverters and a modulation mechanism for separate drives have been described. The available DC bus voltage supplied the two induction motors using a PWM technique for a 5-leg inverter. Nine-switch inverters and nine-switch z-source inverters have lately been presented as dual-output inverter. A nine-switch z-source inverter and a unique pulse width modulation (PWM) were created. Also, a five-leg inverter is modelled using Extended Two Arm Modulation (ETAM) scheme. The suggested modulation techniques were applied to control two machine drive systems with a single inverter architecture with a reduced switch count for pumping the water to house hold appliances. The comparative analysis of the two dual-output inverters is integral to this work.
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Susheela, Nunsavath. "Comparative Analysis of Carrier based techniques for Single phase Diode Clamped MLI and Hybrid inverter with reduced components." Indonesian Journal of Electrical Engineering and Computer Science 7, no. 3 (September 1, 2017): 687. http://dx.doi.org/10.11591/ijeecs.v7.i3.pp687-697.

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<p>The multilevel inverters have highly desirable characteristics in high power high voltage applications. The multilevel inverter was started first with diode clamped multilevel inverter. Later, various configurations have been came into existence for many applications. However the multilevel inverters have some demerits such as requiring higher number of components, PWM control method is complex and capacitor voltage balancing problem. The hybrid multilevel inverter presented in this paper has superior characteristics over conventional multilevel inverters. The hybrid multilevel inverter employs fewer components and less carrier signals when compared to conventional multilevel inverters. It consists of level generation and polarity generation stages which involves high frequency and low frequency switches. The complexity and overall cost for higher output voltage levels are greatly reduced. Implementation of single phase 7-level, 9-level and 11-level diode clamped multilevel inverter and hybrid multilevel inverter has been performed using sinusoidal pulse width modulation (SPWM) strategies i.e., phase disposition (PD), alternate phase opposition disposition (APOD). Also these techniques are compared in terms of total harmonic distortion (THD) for various modulation indices and observed to be greatly improved in case of hybrid inverter when compared to diode clamped inverter. The comparative study of performance for single phase diode clamped multilevel inverter and hybrid inverter is analyzed with different loads. Simulation is performed using MATLAB/ SIMULINK. </p>
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Murdianto, Farid Dwi, Indhana Sudihato, Anang Budi Karso, and Wildana Zulfa. "Design of a Single Phase HERIC-SPWM." INTEK: Jurnal Penelitian 9, no. 1 (April 1, 2022): 7. http://dx.doi.org/10.31963/intek.v9i1.2995.

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Development in the field of technology has experienced rapid development in recent years, especially in inverter. Every year the development of inverters is very fast starting from full bidge inverters to HERIC inverters, inverters are usually used to convert DC voltage to AC, HERIC inverters are modifications of full bidge inverters with 2 additional IGBTs on the output side, therefore this paper will discuss about inverter design. HERIC SPWM 1 phase.The HERIC inverter will be compared with full bridge inverters to find out the advantages of these modifications. The modulation technique here uses SPWM (sinusoidal pulse width modulation) modulation technique as the switching process. IGBT switching on the HERIC inverter to produce the desired output waveform. The methodology for making a 1-phase HERIC SPWM inverter using a source from the PLN road network which will then be rectified by the rectifier. The rectifier output of 311 vdc will then be converted into AC voltage with output by the HERIC inverter.So that by making this single-phase HERIC SPWM inverter it is possible to be efficient and produce the power supply that will be used.
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Lakshmi, G. Sree, and S. Naveen Kumar. "Comparison of Multilevel Inverters with T-type MLI: A Brief Review." Jurnal Kejuruteraan 35, no. 4 (July 30, 2023): 803–9. http://dx.doi.org/10.17576/jkukm-2023-35(4)-02.

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This paper gives a comparative analysis of different types of Multilevel Inverters with T-Type inverters. The principal aim of the work is to analyse the T-type multilevel inverter operation with different multilevel inverters such as DiodeClamped Multilevel Inverter, Flying Capacitor Multilevel Inverter and Cascaded H-bridge Multilevel Inverter. All the inverters are compared and their advantages, disadvantages and usages are specified. The inverter used in our work runs on the multilayer bidirectional DC-DC converter. This can be used in Renewable Energy Sources and Electric Vehicle applications. The proposed design includes two power switches with an additional capacitor to balance the currents of the multilayer T-type (MLI) capacitor during an entire drive pattern or fault circumstances. In this design, the big capacitors being electrolytic in T-type Multilevel Inverter has been exchanged with longer-lasting film capacitors due to the highfrequency cycle-by-cycle current security between CN and CP. The converter’s dimensions and weight would be lowered by 20% because of this topology, as the number of switches and the capacitors used for balancing is reduced in this proposed design. The simulation analysis for five-level conventional T-type inverter and proposed T-type inverter with capacitor voltage balancing is done. The line-to-line voltages, line currents, phase voltages, three-phase voltages, and voltage total harmonic distortions are compared for conventional T-type inverter and proposed T-type inverter with capacitor voltage balancing. The simulation results shows that the proposed T-type inverter gives better performance compared to conventional T-type multilevel inverter.
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Balaji, V., Uppili Subha, and G. Joga Rao. "A Reduced Switch Count Seven Level Symmetrical Inverter with Low Distortion." International Journal of Recent Technology and Engineering (IJRTE) 10, no. 2 (July 30, 2021): 181–86. http://dx.doi.org/10.35940/ijrte.b6032.0710221.

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Various types of new structures in multilevel inverters are evolving day by day. One among those is the reduced switch count type multilevel inverters. This inverter consists of low number of switches, gate driver components, and other switches like auxiliary switches. Depending on the value of the voltage sources we have symmetrical and asymmetrical multilevel inverters. In this paper, the seven level symmetrical inverter design is shown for seven levels in its output. The output voltage waveform is plotted and its FFT is performed and the THD values are shown. The inverter is simulated in SIMULINK software. Index Terms: Seven level MLI, inverter, and Modular Inverter.
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Dissertations / Theses on the topic "Inverter"

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Faraci, William Eric. "Design of a Resonant Snubber Inverter for Photovoltaic Inverter Systems." Thesis, Virginia Tech, 2014. http://hdl.handle.net/10919/47800.

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With the rise in demand for renewable energy sources, photovoltaics have become increasingly popular as a means of reducing household dependence on the utility grid for power. But solar panels generate dc electricity, a dc to ac inverter is required to allow the energy to be used by the existing ac electrical distribution. Traditional full bridge inverters are able to accomplish this, but they suffer from many problems such as low efficiency, large size, high cost, and generation of electrical noise, especially common mode noise. Efforts to solve these issues have resulted in improved solutions, but they do not eliminate all of the problems and even exaggerate some of them. Soft switching inverters are able to achieve high efficiency by eliminating the switching losses of the power stage switches. Since this action requires additional components that are large and have additional losses associated with them, these topologies have traditionally been limited to higher power levels. The resonant snubber inverter is a soft switching topology that eliminates many of these problems by taking advantage of the bipolar switching action of the power stage switches. This allows for a significant size reduction in the additional parts and elimination of common mode noise, making it an ideal candidate for lower power levels. Previous attempts to implement the resonant snubber inverter have been hampered by low efficiency due to parasitics of the silicon devices used, but, with recent developments in new semiconductor technologies such as silicon carbide and gallium nitride, these problems can be minimized and possibly eliminated. The goal of this thesis is to design and experimentally verify a design of a resonant snubber inverter that takes advantage of new semiconductor materials to improve efficiency while maintaining minimal additional, parts, simple control, and elimination of common mode noise. A 600 W prototype is built. The performance improvements over previous designs are verified and compared to alternative high efficiency solutions along with a novel control technique for the auxiliary resonant snubber. A standalone and grid tie controller are developed to verify that the auxiliary resonant snubber and new auxiliary control technique does not complicate the closed loop control.
Master of Science
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Tang, Yuqing. "High Power Inverter EMI Characterization and Improvement by Auxiliary Resonant Snubber Inverter." Thesis, Virginia Tech, 1998. http://hdl.handle.net/10919/31022.

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Electromagnetic interference (EMI) is a major concern in inverter motor drive systems. The sources of EMI have been commonly identified as high switching dv/dt and di/dt rates interacting with inverter parasitic components. The reduction of parasitic components relies on highly integrated circuit layout and packaging. This is the way to deal with noise path. On the other hand, switching dv/dt and di/dt can be potentially reduced by soft-switching techniques; thus the intensity of noise source is reduced.

In this paper, the relation between the dv/dt di/dt and the EMI generation are discussed. The EMI sources of a hard-switching single-phase PWM inverter are identified and measured with separation of common-mode and differential-mode noises. The noise reduction in an auxiliary resonant snubber inverter (RSI) is presented. The observation of voltage ringing and current ringing and the methods to suppress these ringing in the implementation of RSI are also discussed. The test condition and circuit layout are described as the basis of the study. And the experimental EMI spectra of both hard- and soft-switching inverter are compared. The effectiveness and limitation of the EMI reduction of the ZVT-RSI are also discussed and concluded.

The control interface circuit and gate driver design are described in the appendix. The implementation of variable charging time control of the resonant inductor current is also explained in the appendix.
Master of Science

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Saghaleini, Mahdi. "Switching Patterns and Steady-State Analysis of Grid-Connected and Stand-Alone Single-Stage Boost-Inverters for PV Applications." FIU Digital Commons, 2012. http://digitalcommons.fiu.edu/etd/796.

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Renewable or sustainable energy (SE) sources have attracted the attention of many countries because the power generated is environmentally friendly, and the sources are not subject to the instability of price and availability. This dissertation presents new trends in the DC-AC converters (inverters) used in renewable energy sources, particularly for photovoltaic (PV) energy systems. A review of the existing technologies is performed for both single-phase and three-phase systems, and the pros and cons of the best candidates are investigated. In many modern energy conversion systems, a DC voltage, which is provided from a SE source or energy storage device, must be boosted and converted to an AC voltage with a fixed amplitude and frequency. A novel switching pattern based on the concept of the conventional space-vector pulse-width-modulated (SVPWM) technique is developed for single-stage, boost-inverters using the topology of current source inverters (CSI). The six main switching states, and two zeros, with three switches conducting at any given instant in conventional SVPWM techniques are modified herein into three charging states and six discharging states with only two switches conducting at any given instant. The charging states are necessary in order to boost the DC input voltage. It is demonstrated that the CSI topology in conjunction with the developed switching pattern is capable of providing the required residential AC voltage from a low DC voltage of one PV panel at its rated power for both linear and nonlinear loads. In a micro-grid, the active and reactive power control and consequently voltage regulation is one of the main requirements. Therefore, the capability of the single-stage boost-inverter in controlling the active power and providing the reactive power is investigated. It is demonstrated that the injected active and reactive power can be independently controlled through two modulation indices introduced in the proposed switching algorithm. The system is capable of injecting a desirable level of reactive power, while the maximum power point tracking (MPPT) dictates the desirable active power. The developed switching pattern is experimentally verified through a laboratory scaled three-phase 200W boost-inverter for both grid-connected and stand-alone cases and the results are presented.
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Mansfield, Keith. "COMPARISON OF SINGLE STAGE AND TWO STAGE STAGE GRID-TIE INVERTERS." Master's thesis, University of Central Florida, 2007. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2730.

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This thesis compares two methods of designing grid-tie inverters. The first design topology is a traditional two stage approach consisting of an isolated DC-DC converter on the input followed by a high switching frequency SPWM (Sinusoidal Pulse Width Modulation) stage to produce the required low frequency sine wave output. The novel second design approach employs a similar DC-DC input stage capable of being modulated to provide a rectified sine wave output voltage/current waveform. This stage is followed by a simple low frequency switched Unfolding Stage to recreate the required sine wave output. Both of the above designs have advantages and disadvantages depending on operating parameters. The following work will compare the Unfolding Output Stage and the SPWM Output Stage at various power levels and power densities. Input stage topologies are similarly examined in order to determine the best design approach for each output stage under consideration.
M.S.E.E.
School of Electrical Engineering and Computer Science
Engineering and Computer Science
Electrical Engineering MSEE
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Larsen, Alexander, and Pontus Lindquist. "Forecasting mismatch losses: An empirical study investigating module level inverter- and string inverter systems." Thesis, KTH, Energiteknik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-148089.

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The purpose of this thesis is to investigate the correlation between irradiance and power output for a system with a module level inverter and a string inverter, respectively. An empirical study has been conducted and inverters in photovoltaic systems will be discussed and divided into two types; module level and string inverters. Different sources of mismatch such as degradation, partial shading and manufacturing issues are also part of the study.    The predicted mismatch for the string inverter system is 2,6 %, based on flash test data for fresh cells, although that value is likely to be underrated due to aging effects not accounted for in the model.   The system equipped with module level inverters generated 6,1 % more energy during the measured period. Although the period of measuring is short and the number of systems compared is small, this study has identified multiple sources that explain why the string inverter system is inferior and is outperformed by the module level inverter system regarding power output.
Syftet med detta arbete är att utforska korrelationen mellan solinstrålning och producerad effekt för två olika system. Det ena systemet består av lokala växelriktare och det andra av en strängomriktare. En empirisk studie har utförts och i detta arbete diskuteras växelriktare i fotovoltaiska system. Olika orsaker till varför förlorad effekt uppstår mellan modulerna så som ålder, skuggning och tillverkningsfel omfattas även av detta arbete.   Det förutspådda värdet på effektförluster mellan modulerna i strängomriktarsystemet uppgick till 2,6 %, vilket är baserat på flash tester för nya solceller. Detta värde är troligtvis underskattat med tanke på att de celler som använts är föråldrade och att effekten av detta inte är medtaget i beräkningarna.   Systemet med lokala växelriktare genererade 6,1 % mer elektricitet under den uppmätta perioden. Fastän den uppmätta perioden var kort och antalet system som studerades var litet så kunde flera faktorer identifieras som förklarar varför strängomriktare är underlägsna lokala växelriktare sett till producerad effekt.
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Krogemann, Markus. "The parallel resonant DC link inverter : a soft-switching inverter topology with PWM capability." Thesis, University of Nottingham, 1997. http://eprints.nottingham.ac.uk/13526/.

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Soft-switching inverters have over the last decade received a lot of attention by researchers owing to the reduction or virtual elimination of switching losses that these circuits can achieve. Possible improvements in EMC performance due to the reduced levels of dv/dt have among other advantages triggered the development of a still growing number of zero-voltage or zero-current switching inverter circuits. More recently, the trend seems to have shifted from continuously resonant systems over to quasi-resonant topologies due to advantages in terms of device stresses and PWM compatibility. In this work, continuously resonant as well as quasi-resonant techniques are reviewed. A quasi-resonant circuit will be implemented in a three-phase PWM inverter system controlled by a network of transputers. It will be examined to which degree the working principle of this Parallel Resonant DC Link (PRDCL) inverter affects the PWM compatibility and a suitable PWM strategy will be presented and implemented. The modified PWM technique shows output quality comparable to standard PWM methods while being fully compatible with the operation of the resonant link. The conversion efficiency and EMC performance of a PWM inverter drive based on the PRDCL circuit will be measured and compared to its hard-switched equivalent. It will be shown that improvements over hard-switching inverters are possible. However, the investigation of the PRDCL PWM inverter also reveals a number of drawbacks which limit the achievable switching frequency and adversely affect the conversion efficiency. Despite the many previous publications these problems have generally been overlooked in the past.
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Breda, David Pedro. "Simulation of a resonant inverter." Master's thesis, Universidade de Aveiro, 2015. http://hdl.handle.net/10773/15931.

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Mestrado em Engenharia Electrónica e de Telecomunicações
Mostly developed since the Industrial Revolution, the automation of systems and equipment around us is responsible for a technological progress and economic growth without precedents, but also by a relentless energy dependence. Currently, fossil fuels still tend to come as the main energy source, even in developed countries, due to the ease in its extraction and the mastery of the technology needed for its use. However, the perception of its ending availability, as well as the environmental impact of this practice has led to a growing energy production originated from renewable sources. Easy maintenance, coupled with the fact that they are virtually inexhaustible, makes the solar and wind energy very promising solutions. In this context, this work proposes to facilitate energy production from these sources. To this end, in this work the power inverter is studied, which is an equipment responsible for converting DC power available by solar or wind power in traditional AC power. Then it is discussed and designed a new architecture which, in addition to achieve a high energy e - ciency, has also the ability to adapt to the type of conversion desired by the user, namely if he wants to sell electricity to the power grid, be independent of it or bet on a self consumption system. In order to achieve the promised energy e ciency, the projected inverter uses a resonant DC-DC converter, whose architecture signi cantly decreases the energy dissipated in the conversion, allowing a higher power density. The adaptability of the equipment is provided by an adaptive control algorithm, responsible for assessing its behavior on every iteration and making the necessary changes to achieve maximum stability throughout the process. To evaluate the functioning of the proposed architecture, a simulation is presented using the PLECS simulation software.
Desenvolvida maioritariamente a partir da Revolução Industrial, a automatização dos sistemas e equipamentos que nos rodeiam e responsável por um progresso tecnológico e crescimento económico sem precedentes, mas também por uma incessante dependência energética. Atualmente, combustíveis fosseis ainda tendem a surgir com principal fonte de energia, mesmo em países desenvolvidos, devido a facilidade na sua extração e domínio da tecnologia necessária a sua utilização. No entanto, a perceção quer da sua findável disponibilidade, quer do impacto ambiental desta pratica, tem levado a uma crescente produção de energia proveniente de fontes renováveis. A sua fácil manutenção, aliada ao facto de serem praticamente inesgotáveis, faz das energias solar e eólica uma solução muito promissora. Neste contexto, esta dissertação propõe facilitar a produção de energia proveniente destas fontes. Assim, neste trabalho são estudados os inversores de potencia, equipamentos responsáveis por converter energia DC disponibilizada por uma fonte solar ou eólica em energia AC tradicional. Seguidamente e discutida e projetada uma nova arquitetura que, para al em de conseguir um alto rendimento energético, tem também a capacidade de se adaptar face ao tipo de conversão pretendida pelo utilizador, caso este queira vender energia a rede elétrica, ser independente desta ou apostar num sistema de auto consumo. Para alcançar o alto rendimento energético prometido, o inversor projetado faz uso de um conversor DC-DC ressonante, cuja arquitetura diminui consideravelmente a energia dissipada na conversão, permitindo assim uma maior densidade de potencia. A versatilidade do equipamento e disponibilizada por um algoritmo de controlo adaptativo, responsável por avaliar o comportamento deste a cada iteração e fazer as alterações necessárias para alcançar a máxima estabilidade ao longo de todo o processo. Para uma avaliação do funcionamento da arquitetura proposta, apresenta-se a simulação da mesma utilizando o software de simulação PLECS.
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Joel, Jaldemark. "Remote control of frequency inverter." Thesis, Högskolan i Halmstad, Akademin för informationsteknologi, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-41400.

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Emotron has a frequency inverter on the market that different industries uses in their factories. In case of errors they need to send out service to the factories in order to examine the inverter and find the error. They now want a solution that makes it possible for them to give support without leaving the office by connecting their devices to the cloud which eliminates the need to send out staff to industries. Emotron gave this task to HMS and has been possible with their product Anybus wiress bolt. By connecting the Anybus wireless bolt to the inverter it was possible to communicate with the cloud, MicrosoftAzure, where a static webb application is hosted. The application is made to look like the terminal on the inverter and has similiar structures and functionality. Through the application users can communicate withthe inverter by means of controlling the connected motor, reading registers and also write to certain registers. These registers contain different measurement and option parameters. The purpose of this thesis was to create a Proof-of-Concept solution using the Anybus wireless bolt. The thesis has shown of industries can use Anybus wireless bolt and the tag engine to make it possible to create a link between machines and the ever- growing cloud and is also the first part of a bigger project.
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Chen, Baifeng. "High-efficiency Transformerless PV Inverter Circuits." Diss., Virginia Tech, 2015. http://hdl.handle.net/10919/56686.

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With worldwide growing demand for electric energy, there has been a great interest in exploring photovoltaic (PV) sources. For the PV generation system, the power converter is the most essential part for the efficiency and function performance. In recent years, there have been quite a few new transformerless PV inverters topologies, which eliminate the traditional line frequency transformers to achieve lower cost and higher efficiency, and maintain lower leakage current as well. With an overview of the state-of-the-art transformerless PV inverters, a new inverter technology is summarized in the Chapter 2, which is named V-NPC inverter technology. Based this V-NPC technology, a family of high efficiency transformerless inverters are proposed and detailly analyzed. The experimental results demonstrate the validity of V-NPC technology and high performance of the transformerless inverters. For the lower power level transformerless inverters, most of the innovative topologies try to use super junction metal oxide semiconductor field effect transistor(MOSFET) to boost efficiency, but these MOSFET based inverter topologies suffer from one or more of these drawbacks: MOSFET failure risk from body diode reverse recovery, increased conduction losses due to more devices, or low magnetics utilization. By splitting the conventional MOSFET based phase leg with an optimized inductor, Chapter 3 proposes a novel MOSFET based phase leg configuration to minimize these drawbacks. Based on the proposed phase leg configuration, a high efficiency single-phase MOSFET transformerless inverter is presented for the PV micro-inverter applications. The PWM modulation and circuit operation principle are then described. The common mode and differential mode voltage model is then presented and analyzed for circuit design. Experimental results of a 250 W hardware prototype are shown to demonstrate the merits of the proposed MOSFET based phase-le and the proposed transformerless inverter. New codes require PV inverters to provide system regulation and service to improve the distribution system stabilization. One obvious impact on PV inverters is that they now need to have reactive power generation capability. The Chapter 4 improves the MOFET based transformerless inverter in the Chapter 3 and proposed a novel pulse width modulation (PWM) method for reactive power generation. The ground loop voltage of this inverter under the proposed PWM method is also derived with common mode and differential mode circuit analyses, which indicate that high-frequency voltage component can be minimized with symmetrical design of inductors. A 250-W inverter hardware prototype has been designed and fabricated. Steady state and transient operating conditions are tested to demonstrate the validity of improved inverter and proposed PWM method for reactive power generation, high efficiency of the inverter circuit, and the high-frequency-free ground loop voltage. Besides the high efficiency inverter circuit, the grid connection function is also the essential part of the PV system. The Chapter 5 present the overall function blocks for a grid-connected PV inverter system. The current control and voltage control loop is then analyzed, modeled, and designed. The dynamic reactive power generation is also realized in the control system. The new PLL method for the grid frequency/voltage disturbance is also realized and demonstrate the validity of the detection and protection capability for the voltage/frequency disturbance. At last, a brief conclusion is given in the Chapter 6 about each work. After that, future works on device packaging, system integration, innovation on inverter circuit, and standard compliance are discussed.
Ph. D.
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Sirisukprasert, Siriroj. "Optimized Harmonic Stepped-Waveform for Multilevel Inverter." Thesis, Virginia Tech, 1999. http://hdl.handle.net/10919/35333.

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The concept of multilevel voltage source inverters and their modulation topologies are described. The concept of the Optimized Harmonic Stepped-Waveform (OHSW) technique for a multilevel inverter is presented. By applying this concept, specific harmonics can be eliminated, and the output voltage THD can be improved. A procedure to achieve the appropriate switching angles of the OHSW is proposed. Experimental results are presented to verify the concept. The proposed OHSW technique is implemented on a multilevel inverter using cascaded-inverter with separated dc sources. Comparison between the Selective Harmonic Eliminated PWM and the OHSW is also presented.
Master of Science
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Books on the topic "Inverter"

1

Bedford, B. D. Principles of inverter circuits. Malabar, Fla: R.E. Krieger Pub. Co., 1985.

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2

Guzinski, Jaroslaw, Haitham Abu-Rub, and Patryk Strankowski. Variable Speed AC Drives with Inverter Output Filters. Chichester, UK: John Wiley & Sons, Ltd, 2015. http://dx.doi.org/10.1002/9781118782989.

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3

McCormick, John A. Three-phase inverter for small high speed motors. Hanover, NH: Creare Inc., 1991.

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A, Valenzuela Javier, and United States. National Aeronautics and Space Administration., eds. Three-phase inverter for small high speed motors. Hanover, NH: Creare Inc., 1991.

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A, Valenzuela Javier, and United States. National Aeronautics and Space Administration., eds. Three-phase inverter for small high speed motors. Hanover, NH: Creare Inc., 1991.

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6

Skinner, A. J. Four quadrant inverter technologies for high frequency UPS. Leatherhead, Surrey, England: ERA Technology, 1992.

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7

Ahmad, Hammoud, and United States. National Aeronautics and Space Administration., eds. Development of a 1 kW, 200C̊ Mapham inverter. [Washington, D.C: National Aeronautics and Space Administration, 1995.

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Palani, Rakesh Kumar, and Ramesh Harjani. Inverter-Based Circuit Design Techniques for Low Supply Voltages. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-46628-6.

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9

Mason, C. R. High power G.T.O. circuit design for inverter drive applications. Birmingham: University of Birmingham, 1987.

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T, Myers Ira, and United States. National Aeronautics and Space Administration., eds. Multi-megawatt inverter/converter technology for space power applications. [Washington, DC]: National Aeronautics and Space Administration, 1992.

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Book chapters on the topic "Inverter"

1

Melkebeek, Jan A. "Inverter." In Electrical Machines and Drives, 307–42. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-72730-1_11.

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Weik, Martin H. "inverter." In Computer Science and Communications Dictionary, 835. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_9577.

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Giebel, Thomas. "Der Inverter." In Grundlagen der CMOS-Technologie, 151–79. Wiesbaden: Vieweg+Teubner Verlag, 2002. http://dx.doi.org/10.1007/978-3-663-07914-9_6.

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Weik, Martin H. "image inverter." In Computer Science and Communications Dictionary, 751. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_8650.

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Uyemura, John P. "The CMOS Inverter." In Circuit Design for CMOS VLSI, 79–113. Boston, MA: Springer US, 1992. http://dx.doi.org/10.1007/978-1-4615-3620-8_3.

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Shen, Shuiwen, and Qiong-zhong Chen. "Inverter PWM Control." In Lecture Notes in Electrical Engineering, 289–318. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-38161-4_9.

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Amin, Bahram. "Inverter-Fed Induction Motors." In Power Systems, 109–55. Berlin, Heidelberg: Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/978-3-662-04373-8_6.

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Neuburger, Martin. "Photovoltaic based inverter charger." In Proceedings, 181–97. Wiesbaden: Springer Fachmedien Wiesbaden, 2014. http://dx.doi.org/10.1007/978-3-658-05130-3_14.

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Palani, Rakesh Kumar, and Ramesh Harjani. "Inverter Based OTA Design." In Analog Circuits and Signal Processing, 29–39. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-46628-6_3.

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Liu, Hongpeng, Zichao Zhou, Yuhao Li, Wentao Wu, Jiabao Jiang, and Enda Shi. "Z-Source Inverter and Control." In Impedance Source Inverters, 29–49. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-2763-0_2.

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Conference papers on the topic "Inverter"

1

Gayathry, P. R., S. Sreehari, and Alan Mathew George. "Comparative Analysis of Standard Cascaded H-Bridge and Improved Switched Capacitor Multilevel Inverter." In 2nd International Conference on Modern Trends in Engineering Technology and Management. AIJR Publisher, 2023. http://dx.doi.org/10.21467/proceedings.160.49.

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The demand for higher power quality in industrial applications led to the replacement of two stage inverters with multilevel inverters, which may provide multiple steps of ac output voltage with lower harmonic content. They can thus be utilized in high-voltage and high-power applications. Cascaded H bridge inverters are one of the most used multilevel inverter techniques. Yet as the number of output levels rises, H-bridge inverters use more voltage sources and switching devices, which is one of their main drawbacks. As a result, switching stress and losses rise. In this paper, a modified structure of a switched capacitor multilevel inverter (SCMLI) supplied from a single DC source and requiring fewer switching devices is compared to a conventional cascaded H-bridge inverter. This paper also presents the total harmonic distortion (THD) comparison of 9 levels, 17 levels, and 33 levels of switched capacitor and conventional cascaded H-bridge multilevel inverters. The THD of 9 levels, 17 levels, and 33-level conventional cascaded H-bridge inverters is 14.2, 13.2, and 7.5 respectively. By introducing the modified topology of a switched capacitor multilevel inverter the THD is reduced to 12.57, 9.59, and 4.4 respectively. From the comparison study, the modified SCMLI configuration is considered the most efficient topology with self-balanced voltage capability, a lesser number of switches, and reduced harmonics.
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2

Chen, Minjia, Chunhui Yao, Adrian Wonfor, Shuai Yang, Mark Holm, Qixiang Cheng, and Richard Penty. "Direct Iterative Photonic Integrated Matrix Inverter." In CLEO: Science and Innovations. Washington, D.C.: Optica Publishing Group, 2023. http://dx.doi.org/10.1364/cleo_si.2023.sm1p.2.

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We demonstrate the first chip-based real-valued direct photonic matrix inverter using coherent sources. At a rate of 2×10 5 inversions/s, a 16×16 diagonal matrix and a 2×2 arbitrary matrix are inverted with 99.2% and 93.7% accuracy.
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Lynn, Kevin. "Outdoor Performance Characterization of Grid-Connected Inverters." In ASME 2004 International Solar Energy Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/isec2004-65114.

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Between April 2001 and September 2002, the Florida Solar Energy Center conducted research to evaluate the performance of several utility-interactive inverters. The major issues to be identified were the efficiency of the inverters and their ability to follow the maximum power point of the photovoltaic (PV) array. Existing PV testing facilities at FSEC were modified to carry out this analysis. This facility, called the Photovoltaic Inverter Test Facility, is capable of providing approximately four kWp of array power to the inverter. Data on inverter performance were collected using a Campbell 10X datalogger. The parameters collected included the following: irradiance, PV array temperature, inverter temperature, PV voltage, PV current, AC voltage, AC current, and AC Power. Because of the voltage windows and power requirements of the different inverters, the array was designed to be easily reconfigured to meet those requirements. Each of the inverters was installed and allowed to run for several weeks under both clear and cloudy conditions. At the end of the test period, inverter efficiencies were calculated from the collected data. The ability of the inverter to follow the maximum power point of the array was evaluated in two ways. In the first method, DC voltage and current were measured while the inverter was operating, then the array was disconnected from the inverter and the maximum power point of the array was immediately taken. By comparing the measured DC voltage and current to the maximum power point of the array, one could determine the effectiveness of the inverter algorithm. Unfortunately this method requires steady-state conditions and does not show the effectiveness of the algorithm in cloudy conditions. To determine its effectiveness in cloudy conditions, DC voltage and current were compared to the expected maximum power. The expected array maximum power point was calculated from IV curves of the array, irradiance measurements, and array temperature measurements. DC to AC efficiency curves were derived from the data as well. Results from the inverters were mixed, but several showed room for improvement.
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Kiss, Gergely, Francesco Duchi, and Tim Steinhaus. "Hardware-in-the-Loop Testing for Optimizing Inverter Performance in Electric Vehicles." In 16th International Conference on Engines & Vehicles. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2023. http://dx.doi.org/10.4271/2023-24-0178.

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<div class="section abstract"><div class="htmlview paragraph">In recent years, the use of high-power inverters has become increasingly prevalent in vehicles applications. With the increasing number of electric vehicle models comes the need for efficient and reliable testing methods to ensure the proper functioning of these inverters. One such method is the use of Hardware-in-the-Loop (HiL) environments, where the inverter is connected to a simulated environment to test its performance under various operating conditions. HiL testing allows for faster and more cost-effective testing than traditional methods and provides a safe environment to evaluate the inverter's response to different scenarios. Further, in such an environment, it is possible to specifically stimulate those system states in which conflicts between the lines arise regarding the ideal system parametrization. By combining HiL testing with design-of-experiments and modelling methods, the propulsion system can hence be optimized in a holistic manner.</div><div class="htmlview paragraph">In the past, such approaches have been used in conventional powertrain development such as to validate software functions on existing controller hardware or investigate system interactions on an engine or powertrain testbed. In this paper, we demonstrate the possibilities of inverter testing on a Power-HiL (PHiL) environment. In addition to the resulting analogies and differences for the different kinds of drive systems, the advantages and limitations of this testing method will be discussed. The efficient, robust and NVH-optimized operation of an electric drive is to a great extend determined by the level of current ripple generated by the switching of its inverter. Consequently, the optimization of the switching frequency to minimize this ripple has become a crucial aspect of the development process. In this regard, the present study aims to conduct comparative investigations on both an inverter testbed and an E-motor testbed to evaluate and attribute the sources of the current ripple induced in each component as well as the combined system behavior. By doing so, a comprehensive understanding of the ripple characteristics in different testing environments can be achieved, leading to the effective optimization of the electric drive's performance.</div></div>
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Flicker, Jack. "PV inverter reliability: Advanced Inverter Functionality." In Proposed for presentation at the IEEE Energy Conversion Congress and Exposition (ECCE) held October 10-14, 2022 in Detroit, MI United States. US DOE, 2022. http://dx.doi.org/10.2172/2004723.

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Duraipandi, Arumuga Pandian, Renan Leon, Herve Ribot, Antony Vinoth Raja, Altafhussain Farooqui, and Vinoth-Roy Chandrasekaran. "Structural Validation and Correlation of Inverter Gasket." In WCX SAE World Congress Experience. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2024. http://dx.doi.org/10.4271/2024-01-2744.

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<div class="section abstract"><div class="htmlview paragraph">Inverter is the power electronics component that drives the electrical motor of the electrical driven compressor (EDC) and communicates with the car network. The main function of the inverter is to convert the direct current (DC) voltage of the car battery into alternating current (AC) voltage, which is used to drive the three-phase electric motor. In recent days, inverters are present in all automotive products due to electrification. Inverter contains a printed circuit board (PCB) and electronic components, which are mounted inside a mechanical housing and enclosed by a protective cover. The performance of the electrical drive depends upon the functioning of the inverter. There is a strong demand from the customer to withstand the harsh environmental and testing conditions during its lifetime such as leakage, dust, vibration, thermal tests etc. The failure of the inverter leads to malfunction of the product, hence proper sealing and validation is necessary for inverters to protect the electronic components. Generally, a metallic gasket and rubber gaskets are used as a sealant to protect the electronic components. The influence of design parameters which impact the gasket pressure by selecting the type of screws, number of screws required, minimum distance between the screws and minimum preload required to withstand the thermal conditions are studied and discussed in this paper. The simulation results predict the gasket pressure due to compression, shape of gasket and compressive ratio. The gasket pressure measured from pressure sensitive film test results are well correlated with simulation gasket pressure results. Finally, this robust methodology supports us to virtually validate the gasket design by reducing the number of design iterations and quick evaluation of products.</div></div>
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Lynn, Kevin, and William Wilson. "Early Results From the Long-Term Testing of Inverters." In ASME 2006 International Solar Energy Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/isec2006-99111.

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The Florida Solar Energy Center (FSEC) has partnered with Sandia National Laboratories (SNL), the Southwest Technical Development Institute (SWTDI), and the California Energy Commissions Public Interest Energy Research (CEC PIER) in an effort to characterize the performance of PV inverters operating over extended periods of time. As part of this characterization, SNL executed an initial performance characterization in the laboratory to be repeated at one or two year intervals. These inverters were then sent distributed to the above test facilities for installation and long-term testing. To perform this long-term testing, FSEC built an inverter test facility made up of a configurable 10.1 kW PV array and four test beds. Each test bed was set up to monitor the following parameters: DC voltage, DC current, AC Voltage, AC Power and inverter temperature. Solar irradiance, ambient temperature, and several PV array temperatures were recorded by a separate, synchronized datalogger. Three inverters are currently being tested: the Fronius IG 3000, the Xantrex GT 3.0, and the SMA Sunny Boy 2500U. The three inverters were loaded with a PV array close to the maximum power limit allowed by the inverter, and the array power supplied to each inverter was within 100 W of one another. Since the PV array for each inverter used identical PV modules mounted in the same orientation, it was easier to develop a model to compare inverter performance based on energy output. In addition to energy output, other parameters were obtained such as inverter efficiency. An attempt was made to compare the results obtained at FSEC to those results compiled by the California Energy Commission.
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K R, Adhipa, and Jayanand B. "Comparison of Sine-wave inverter topologies: Infinite-Level inverter and Differential inverter." In 2023 International Conference on Power, Instrumentation, Control and Computing (PICC). IEEE, 2023. http://dx.doi.org/10.1109/picc57976.2023.10142553.

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Dos Santos, Rafael, and Flávio A. S. Gonçalves. "Sinusoidal PWM techniques comparison for the Quasi-Y-Source Inverter." In Simpósio Brasileiro de Sistemas Elétricos - SBSE2020. sbabra, 2020. http://dx.doi.org/10.48011/sbse.v1i1.2316.

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Impedance networks inverters (INI) have emerged as an alternative to improve traditional inverters, allowing their operation as a buck-boost type converter, through the utilization of the "shoot-through" conduction state, where switches of one or more inverter legs are gated on simultaneously. Recently introduced, the Quasi-Y-Source inverter (QYSI) is a magnetic coupled INI that has particular performance advantages, specially for renewable sources and distributed generation. To control the QYSI there is several techniques based on Sinusoidal Pulse Width Modulation (SPWM), that are modified to allow the shootthrough state. This work aims to present, through computational simulations, a comparative analysis of three SPWM techniques applied in three-phase QYSI, considering a fixed boost factor and a three-phase/three-wire RL load connected to the inverter output. The following modulation techniques were compared: Simple Boost Control (SBC), Maximum Boost Control with third harmonic injection (MBC3h) and Maximum Constant Boost Control with third harmonic injection (MCBC3h). Simulation results show operation characteristics of the QYSI for the different modulation techniques. A Fourier analysis was performed in order to evaluate harmonic distortion and harmonic spectrum for both inverter output voltage and current, and a comparative analysis was performed showing several relationships among voltage gain, switch voltage stress, shoot-through duty ratio and modulation index for the different SPWM techniques. Simulation results shows the advantages and disadvantages of each SPWM technique applied to QYSI and the impact of the coupled inductor on inverter performance, helping to establish proper criteria for choosing among SPWM techniques for different power systems applications.
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Gekeler, Manfred W. "Soft switching three level inverter (S3L inverter)." In 2013 15th European Conference on Power Electronics and Applications (EPE). IEEE, 2013. http://dx.doi.org/10.1109/epe.2013.6631756.

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Reports on the topic "Inverter"

1

Zhao, Zilai, and Charles Gough. Next Generation Inverter. Office of Scientific and Technical Information (OSTI), April 2016. http://dx.doi.org/10.2172/1261839.

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Griesbach, C. R., and R. L. Moser. Advanced Inverter Technology. Fort Belvoir, VA: Defense Technical Information Center, October 1985. http://dx.doi.org/10.21236/ada162360.

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Nagarajan, Adarsh, Ramanathan Thiagarajan, Ingrid L. Repins, and Peter L. Hacke. Photovoltaic Inverter Reliability Assessment. Office of Scientific and Technical Information (OSTI), October 2019. http://dx.doi.org/10.2172/1573462.

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Adam Szczepanek. Advanced Modular Inverter Technology Development. Office of Scientific and Technical Information (OSTI), February 2006. http://dx.doi.org/10.2172/898117.

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Hoke, Andy, Austin Nelson, Sudipta Chakraborty, Justin Chebahtah, Trudie Wang, and Michael McCarty. Inverter Ground Fault Overvoltage Testing. Office of Scientific and Technical Information (OSTI), August 2015. http://dx.doi.org/10.2172/1215244.

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Chinthavali, Madhu Sudhan, Steven Campbell, Mariko Shirazi, Sudipta Chakraborty, Akanksha Singh, Kumaraguru Prabakar, and Colin Tombari. Additively Manufactured Photovoltaic Inverter (AMPVI). Office of Scientific and Technical Information (OSTI), January 2020. http://dx.doi.org/10.2172/1606907.

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Ye, Z., M. Dame, and B. Kroposki. Grid-Connected Inverter Anti-Islanding Test Results for General Electric Inverter-Based Interconnection Technology. Office of Scientific and Technical Information (OSTI), January 2005. http://dx.doi.org/10.2172/15011440.

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Bailey, J. M. Dual Mode Inverter Control Test Verification. Office of Scientific and Technical Information (OSTI), April 2001. http://dx.doi.org/10.2172/814403.

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Hoke, Anderson, Austin Nelson, Brian Miller, Sudipta Chakraborty, Frances Bell, and Michael McCarty. Experimental Evaluation of PV Inverter Anti-Islanding with Grid Support Functions in Multi-Inverter Island Scenarios. Office of Scientific and Technical Information (OSTI), July 2016. http://dx.doi.org/10.2172/1265055.

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Lai, Jihsheng. Single DC Source Based Cascaded Multilevel Inverter. Office of Scientific and Technical Information (OSTI), April 2022. http://dx.doi.org/10.2172/2205207.

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