Journal articles: 'Two-inductor boost converter'

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A. Flores-Oropeza, Luis, Alejandro Román-Loera, Jorge E. Macías-Díaz, and Felipe de J. Rizo-Díaz. "Two-inductor Boost Converter Start-up And Steady-state Operation." Eletrônica de Potência 15, no. 3 (August 1, 2010): 143–49. http://dx.doi.org/10.18618/rep.2010.3.143149.

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Dawidziuk, J. "dual inductor-fed boost converter with an auxiliary transformer and voltage doubler." Bulletin of the Polish Academy of Sciences: Technical Sciences 61, no. 4 (December 1, 2013): 787–91. http://dx.doi.org/10.2478/bpasts-2013-0085.

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Abstract This paper presents a dual inductor-fed boost converter with an auxiliary transformer and voltage doubler for sustainable energy power converters. The new topology integrates a two-phase boost converter and a dual inductor-fed boost converter. The energy stored and transferred by both inductors can attain a wide input-voltage and load range which uses a constant switching frequency, by controlling the time duration of the simultaneous conduction of the two switches. Among other current-fed type boost converters the presented topology is attractive due to the high voltage conversion ratio, less stress on the components and less switch conduction loss. To verify the feasibility of this topology, the principles of operation, theoretical analysis, and experimental waveforms are presented for a 1 kW prototype.

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Jang, Y., and M. M. Jovanovic. "New Two-Inductor Boost Converter With Auxiliary Transformer." IEEE Transactions on Power Electronics 19, no. 1 (January 2004): 169–75. http://dx.doi.org/10.1109/tpel.2003.820588.

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Lee and Kim. "Analysis and Design of a ZVT Resonant Boost Converter Using an Auxiliary Resonant Circuit." Electronics 8, no. 4 (April 25, 2019): 466. http://dx.doi.org/10.3390/electronics8040466.

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In this paper, a new zero voltage transition (ZVT) resonant boost converter is proposed. A typical boost converter generates switching losses at turning on and turning off, and these losses cause a reduction in the efficiency of the whole system. This proposed ZVT resonant boost converter utilizes a soft switching method, using an auxiliary circuit with a resonant inductor, capacitor, and two auxiliary switches. Therefore, it can reduce switching losses more so than the conventional hard switching converter. Also, the conduction period of the resonant inductor current is reduced by using a modified circuit. An experiment is conducted with the converter, which steps up the voltage from 200 V to 380 V and its switching frequency and output power are 30 kHz and 4 kW, respectively. It is confirmed that the experimental results and simulation results are the same and the validity of this proposed converter is verified. The conventional converter and proposed converter are analyzed by comparing the experimental results of two converters under the same conditions. It is confirmed that all switches can achieve soft switching and the proposed converter improves on the conventional converter by measuring the efficiency of two converters.

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Tseng, Sheng-Yu, Hung-Yuan Wang, and Chih-Yang Hsu. "Performances of an Interleaved High Step-Up Converter with Different Soft-Switching Snubbers for PV Energy Conversion Applications." International Journal of Photoenergy 2013 (2013): 1–15. http://dx.doi.org/10.1155/2013/834510.

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This paper proposes an interleaved high step-up converter with different soft-switching snubbers for PV energy conversion applications. For the high step-up converter, interleaved and coupled-inductor technologies are used to reduce output ripple current and increase output power level. Simultaneously, two types of snubbers, a single-capacitor snubber and boost type snubber, are introduced separately into the discussed converters for comparing their performances of conversion efficiency and switching losses. For drawing maximum power from the PV arrays, a perturbation-and-observation method realized with the microcontroller is adopted to achieve maximum power point tracking (MPPT) algorithm and power regulating scheme. Finally, two prototypes of the interleaved coupled-inductor boost converter with a single-capacitor snubber and with boost type snubber are implemented, respectively. The experimental results obtained are used to verify and compare the performances and feasibilities of the discussed converters with different snubbers in PV conversion applications. The experimental results show that the proposed system is suitable for PV energy conversion applications when the duty ratios of switches of the converter are less than 0.5.

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Ghaderi, Davood, and Gokay Bayrak. "A Novel Step-Up Power Converter Configuration for Solar Energy Application." Elektronika ir Elektrotechnika 25, no. 3 (June 25, 2019): 50–55. http://dx.doi.org/10.5755/j01.eie.25.3.23676.

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Renewable Energy Sources (RES) including full cells, wind turbines, and photovoltaic panels, widely are spreading. Among all the renewable energy sources, solar power generation system tops the list. The first choice is the boost converter when the voltage step-up is the issue. But the most important subject is applying an efficient structure with high gain, cheap and quick controller circuit. Our proposed cascaded boost converter is one of such converters which consists of several cheap components such as diode, inductor, capacitor and power switch, which has same switching frequency and phase shift in comparison with conventional boost converters. In comparison with the classic cascaded boost converter, the voltage gain for the proposed structure is very high and by forming a preamplifier layer, for a duty cycle of 80 % by adding only two diodes, one inductor, and one capacitor for the second block, voltage gain is increased by 5 times compared to the classic boost converter. The proposed method provides the increased output voltage along with the duty cycle. The projected strategy has been verified with the help of Matlab/Simulink. Also, a hardware implementation of the proposed converter has been done around 200 W by applying a Jiangyin HR-200W-24V type solar panel.

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Khaledian, Amir, Babak Abdi, Javad Shokrollahi Moghani, and Mehrdad Abedi. "An Overview to Soft Switching Converters with High Voltage Gain." Advanced Materials Research 462 (February 2012): 353–57. http://dx.doi.org/10.4028/www.scientific.net/amr.462.353.

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A comparison is made in this paper between three high voltage gain converters. The first one is a boost converter with an additional level including a coupling inductor for increasing the voltage gain. The second is a converter that is capable to be extended to N parallel converter and the third one uses a clamp circuit to increase gain with a coupled inductor. Three converters are compared in voltage and current peak value and utilization coefficient of active switch and output diode, their ZVS and ZCS condition in the ON and OFF time and voltage gain. Finally the first converter circuit is simulated in PSpice with the two other converters input voltages and the results are compared.

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Narasimha, S., and Surender Reddy Salkuti. "Design and operation of closed-loop triple-deck buck-boost converter with high gain soft switching." International Journal of Power Electronics and Drive Systems (IJPEDS) 11, no. 1 (March 1, 2020): 523. http://dx.doi.org/10.11591/ijpeds.v11.i1.pp523-529.

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This paper presents the design and operation of three-stage buck-boost converter with high gain soft switching using closed loop proportional integral (PI) controller. The proposed converter is designed by arranging three identical buck-boost converters working in parallel. The converter units are connected to each other by an inductor as a bridge. This inductor plays a vital role in soft switching operation of converter by maintaining the voltage applied to switches at zero voltage at switching intervals, i.e., the zero-voltage switching (ZVS). The closed-loop system is designed by PI controller, and it maintains the output constant irrespective of changes in input, and the system becomes stable. The proposed converter is efficient in reducing switching losses, leading to improved converter efficiency. Due to parallel operation of three identical converters, the output voltage and input current contain fewer ripples than those of a single converter with same specifications. Proposed converter is more economical and reliable with simpler structure as it utilizes only two inductors as extra elements. The design and analysis of proposed circuit has been carried out in MATLAB Simulink by operating the circuit in various modes.

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Jeevanandham, T., and M. .Raja. "Implementation of PV System with Two Inductor Buck Boost Converter." International Journal of Scientific Engineering and Technology 4, no. 3 (March 1, 2015): 201–6. http://dx.doi.org/10.17950/ijset/v4s3/318.

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Kim, Chong-Eun, Deok-Ki Yang, Jae-Bum Lee, and Gun-Woo Moon. "High-Efficiency Two-Inductor PFC Boost Converter Employing SPDT Relay." IEEE Transactions on Power Electronics 30, no. 6 (June 2015): 2901–4. http://dx.doi.org/10.1109/tpel.2014.2368567.

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Karimi, Mohsen, Mohammad Pichan, Adib Abrishamifar, and Mehdi Fazeli. "An improved integrated control modeling of a high-power density interleaved non-inverting buck-boost DC-DC converter." World Journal of Engineering 15, no. 6 (December 3, 2018): 688–99. http://dx.doi.org/10.1108/wje-11-2017-0360.

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PurposeThis paper aims to propose a novel integrated control method (ICM) for high-power-density non-inverting interleaved buck-boost DC-DC converter. To achieve high power conversion by conventional single phase DC-DC converter, inductor value must be increased. This converter is not suitable for industrial and high-power applications as large inductor value will increase the inductor current ripple. Thus, two-phase non-inverting interleaved buck-boost DC-DC converter is proposed.Design/methodology/approachThe proposed ICM approach is based on the theory of integrated dynamic modeling of continuous conduction mode (CCM), discontinuous conduction mode and synchronizing parallel operation mode. In addition, it involves the output voltage controller with inner current loop (inductor current controller) to make a fair balancing between two stages. To ensure fast transient performance, proposed digital ICM is implemented based on a TMS320F28335 digital signal microprocessor.FindingsThe results verify the effectiveness of the proposed ICM algorithm to achieve high voltage regulating (under 0.01 per cent), very low inductor current ripple (for boost is 1.96 per cent, for buck is 1.1) and fair input current balance between two stages (unbalancing current less than 0.5A).Originality/valueThe proposed new ICM design procedure is developed satisfactorily to ensure fast transient response even under high load variation and the solving R right-half-plane HP zeros of the CCM. In addition, the proposed method can equally divide the input current of stages and stable different parallel operation modes with large input voltage variations.

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Chang, Yong-Nong, Hung-Liang Cheng, Hau-Chen Yen, Chien-Hsuan Chang, and Wei-Di Huang. "An Interleaved DC/DC Converter with Soft-switching Characteristic and high Step-up Ratio." Applied Sciences 10, no. 6 (March 22, 2020): 2167. http://dx.doi.org/10.3390/app10062167.

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This study presents a dc/dc converter featuring soft-switching characteristic, high conversion efficiency, and high step-up ratio. The proposed circuit is composed of two parallel-connected boost converters. Only one coupled inductor is used to replace inductors of the boost converters which are interleaved operated at discontinuous-conduction mode (DCM). The current ripples at the input and the output terminals are reduced due to the interleaved operation. By freewheeling the current of the coupled inductor to discharge the stored electric charges in the parasitic capacitors of the active switches, both active switches can fulfill zero-voltage switching on (ZVS). Owing to DCM operation, the freewheeling diodes can fulfill zero-current switching off (ZCS). Therefore, the power conversion efficiency is improved. The operation principle for each operation mode is analyzed in detail and design equations for the component parameters are provided in this report. Finally, a prototype 200 W 48–400 V converter was implemented and measured to demonstrate the effectiveness of the proposed circuit.

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Li, Mu Rong, Yasunori Kobori, Feng Zhao, Qiu Lin Zhu, Zachary Nosker, Shu Wu, Shaiful N. Mohyar, Haruo Kobayashi, and Nobukazu Takai. "Single-Inductor Dual-Output DC-DC Converter Design with Exclusive Control." Key Engineering Materials 643 (May 2015): 47–52. http://dx.doi.org/10.4028/www.scientific.net/kem.643.47.

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This paper proposes a single inductor dual output (SIDO) DC-DC converter with an exclusive control circuit. We propose two kinds of converter: a buck-buck and a boost-boost converter. Multiple voltage outputs are controlled exclusively, using error voltage feedback. This approach requires a few additional components (a switch, a diode and a comparator), but requires no current sensors and does not depend on the value of output voltage or output current. We describe circuit topologies, operation principles and simulation results.

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Sayed, Khairy, Mohammed G. Gronfula, and Hamdy A. Ziedan. "Novel Soft-Switching Integrated Boost DC-DC Converter for PV Power System." Energies 13, no. 3 (February 8, 2020): 749. http://dx.doi.org/10.3390/en13030749.

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This paper presents a novel soft-switching boost DC-DC converter, which uses an edge-resonant switch capacitor based on the pulse width modulation PWM technique. These converters have high gain voltage due to coupled inductors, which work as a transformer, while the boost converter works as a resonant inductor. Upon turning on, the studied soft switching circuit works at zero-current soft switching (ZCS), and upon turning off, it works at zero-voltage soft switching (ZVS) while using active semiconductor switches. High efficiency and low losses are obtained while using soft switching and auxiliary edge resonance to get a high step-up voltage ratio. A prototype model is implemented in the Power Electronics Laboratory, Assiut University, Egypt. Seventy-two-panel PV modules of 250 W each were used to simulate and execute the setup to examine the proposed boost converter.

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Premkumar, Manoharan, Umashankar Subramaniam, Hassan Haes Alhelou, and Pierluigi Siano. "Design and Development of Non-Isolated Modified SEPIC DC-DC Converter Topology for High-Step-Up Applications: Investigation and Hardware Implementation." Energies 13, no. 15 (August 1, 2020): 3960. http://dx.doi.org/10.3390/en13153960.

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A new non-isolated modified SEPIC front-end dc-dc converter for the low power system is proposed in this paper, and this converter is the next level of the traditional SEPIC converter with additional devices, such as two diodes and splitting of the output capacitor into two equal parts. The circuit topology proposed in this paper is formulated by combining the boost structure with the traditional SEPIC converter. Therefore, the proposed converter has the benefit of the SEPIC converter, such as continuous input current. The proposed circuit structure also improves the features, such as high voltage gain and high conversion efficiency. The converter comprises one MOSFET switch, one coupled inductor, three diodes, and two capacitors, including the output capacitor. The converter effectively recovers the leakage energy of the coupled inductor through the passive clamp circuit. The operation of the proposed converter is explained in continuous conduction mode (CCM) and discontinuous conduction mode (DCM). The required voltage gain of the converter can be acquired by adjusting the coupled inductor turn’s ratio along with the additional devices at less duty cycle of the switch. The simulation of the proposed converter under CCM is carried out, and an experimental prototype of 100 W, 25 V/200 V is made, and the experimental outcomes are presented to validate the theoretical discussions of the proposed converter. The operating performance of the proposed converter is compared with the converters discussed in the literature. The proposed converter can be extended by connecting voltage multiplier (VM) cell circuits to get the ultra-high voltage gain.

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Lee, Kui-Jun, Byoung-Gun Park, Rae-Young Kim, and Dong-Seok Hyun. "Nonisolated ZVT Two-Inductor Boost Converter With a Single Resonant Inductor for High Step-Up Applications." IEEE Transactions on Power Electronics 27, no. 4 (April 2012): 1966–73. http://dx.doi.org/10.1109/tpel.2011.2165970.

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Li, Q., and P. Wolfs. "A Zero-Voltage Switching Two-Inductor Boost Converter With an Auxiliary Transformer." Australian Journal of Electrical and Electronics Engineering 6, no. 3 (January 2009): 233–40. http://dx.doi.org/10.1080/1448837x.2009.11464241.

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Sebastian, Praveen, and Jomole Joseph. "PV Based Resonant Two Inductor Boost Converter for Induction Machine Drive Application." International Journal of Engineering Trends and Technology 27, no. 5 (September 25, 2015): 254–60. http://dx.doi.org/10.14445/22315381/ijett-v27p246.

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Li, Q., and P. Wolfs. "A Leakage-Inductance-Based ZVS Two-Inductor Boost Converter With Integrated Magnetics." IEEE Power Electronics Letters 3, no. 2 (June 2005): 67–71. http://dx.doi.org/10.1109/lpel.2005.846823.

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Yan, L., and B. Lehman. "An Integrated Magnetic Isolated Two-Inductor Boost Converter: Analysis, Design and Experimentation." IEEE Transactions on Power Electronics 20, no. 2 (March 2005): 332–42. http://dx.doi.org/10.1109/tpel.2004.843004.

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Selvaraju, Nandakumar, Prabhuraj Shanmugham, and Sakda Somkun. "Two-Phase Interleaved Boost Converter Using Coupled Inductor for Fuel Cell Applications." Energy Procedia 138 (October 2017): 199–204. http://dx.doi.org/10.1016/j.egypro.2017.10.150.

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Barry, Brendan C., John G. Hayes, Marek S. Rylko, Robert Stala, Adam Penczek, Andrzej Mondzik, and Robert T. Ryan. "Small-Signal Model of the Two-Phase Interleaved Coupled-Inductor Boost Converter." IEEE Transactions on Power Electronics 33, no. 9 (September 2018): 8052–64. http://dx.doi.org/10.1109/tpel.2017.2765920.

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Ham, Seok-Hyeong, and Hyung-Jin Choe. "Miniature DC-DC Boost Converter for Driving Display Panel of Notebook Computer." Energies 12, no. 15 (July 30, 2019): 2924. http://dx.doi.org/10.3390/en12152924.

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This paper proposes a miniature DC-DC boost converter to drive the display panel of a notebook computer. To reduce the size of the circuit, the converter was designed to operate at a switching frequency of 1 MHz. The power conversion efficiency improved using a passive snubber circuit that consisted of one inductor, two capacitors, and two diodes; it reduced the switching losses by lowering the voltage stress of the switch and increased the voltage gain using charge pumping operations. An experimental converter was fabricated at 2.5 cm × 1 cm size using small components, and tested at input voltage 5 V ≤ VIN ≤ 17.5 V and output current 30 mA ≤ IO ≤ 150 mA. Compared to existing boost converters, the proposed converter had ~7.8% higher power conversion efficiency over the entire range of VIN and IO, only ~50% as much voltage stress of the switch and diodes, and a much lower switch temperature TSW = 49.5 °C. These results indicate that the proposed converter is a strong candidate for driving the display panel of a notebook computer.

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Phattanasak, Matheepot, Wattana Kaewmanee, Jean Philippe Martin, Serge Pierfederici, and Bernard Davat. "Interleaved Double Dual Boost Converter for Renewable Energy System." Advanced Materials Research 931-932 (May 2014): 904–9. http://dx.doi.org/10.4028/www.scientific.net/amr.931-932.904.

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This paper presents an interleaved double dual boost converter (IDDB) used in renewable energy application where high voltage gain is required such as fuel cell or photovoltaic applications, etc. Two types of controllers are applied to this converter, 1) a controller based on Flatness properties for regulating the output voltage (outer loop); 2) a sliding mode controller for inductor current (inner loop). The variation of the input voltage is compensated by trajectory planning process. The validation of the proposed system is done through experimental results.

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Zdanowski, M., and R. Barlik. "Analytical and experimental determination of the parasitic parameters in high-frequency inductor." Bulletin of the Polish Academy of Sciences Technical Sciences 65, no. 1 (February 1, 2017): 107–12. http://dx.doi.org/10.1515/bpasts-2017-0013.

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Abstract The paper presents the results of calculations, simulations, and measurements of parasitic capacitance of winding in ferrite inductor suitable for cooperating with 2 kW DC-DC boost converter built using SiC JFET transistors, operating with a switching frequency of 100 kHz. The inductor winding is made of litz wire in a two-layer configuration. The lumped model of inductor winding was adopted. The results of analytical calculations have been compared with the results obtained from experimental investigations based on the resonance effect.

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Yang, Fei, Chunhui Li, Yong Cao, and Kai Yao. "Two-Phase Interleaved Boost PFC Converter With Coupled Inductor Under Single-Phase Operation." IEEE Transactions on Power Electronics 35, no. 1 (January 2020): 169–84. http://dx.doi.org/10.1109/tpel.2019.2914532.

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Li, Quan, and Peter Wolfs. "An Analysis of the ZVS Two-Inductor Boost Converter under Variable Frequency Operation." IEEE Transactions on Power Electronics 22, no. 1 (January 2007): 120–31. http://dx.doi.org/10.1109/tpel.2006.886598.

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Norouzzadeh, Ehsan, Ahmad Ale Ahmad, Meysam Saeedian, Gholamreza Eini, and Edris Pouresmaeil. "Design and Implementation of a New Algorithm for Enhancing MPPT Performance in Solar Cells." Energies 12, no. 3 (February 6, 2019): 519. http://dx.doi.org/10.3390/en12030519.

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This paper presents a new algorithm for improving the maximum power point tracking method in solar cells. The perturb and observe and the constant voltage algorithms are combined intelligently in order to have a fast response and a high power efficiency. Furthermore, a two-phase interleaved boost converter with a coupled inductor is used with the proposed algorithm. The input capacitor and inductor of this converter are much smaller than those of the conventional types of converters. Therefore, its inherent delay is too short. Computer simulations carried out in PowerSIM and experimental results using a 100 W prototype verify the superior performance of the proposed algorithm and converter. The operating principle and comparisons with the conventional algorithms and other methods are presented in this paper. Moreover, a cost function is presented to compare the new algorithm with the others. The experimental results show that the presented system tracks any changes in power in less than 10 ms, and a quick response to the maximum power point is achieved.

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Wang, Shu Hai, Shu Wang Chen, and Yue Su. "Design of Laptop Power Adapter Circuit." Applied Mechanics and Materials 427-429 (September 2013): 909–12. http://dx.doi.org/10.4028/www.scientific.net/amm.427-429.909.

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In the design of laptop power adapter, the former stage is the power factor correction PFC converter; the after stage is DC/DC converter. The control part controls chip through an integrated PFC and PFM control integrated. In this two structures, the former stage PFC often using traditional inductor current critical conduction mode Boost converter to achieve sinusoidal input current to the whole form, thus reducing input current harmonics with a high power factor, keep a long time , simple structure and low cost.

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Athira P.C, Vista Steny,. "High Step-Up Two Inductor Boost Converter Integrated with Cascade Cockcroft-Walton Voltage Multiplier." International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering 04, no. 07 (July 20, 2015): 6268–74. http://dx.doi.org/10.15662/ijareeie.2015.0407039.

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Qi, Feng He, and Ying Sun. "Study of Bifurcation and Chaos in the Current-Mode Controlled Boost DC-DC Converter." Applied Mechanics and Materials 733 (February 2015): 635–38. http://dx.doi.org/10.4028/www.scientific.net/amm.733.635.

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This paper derives bifurcation and chaos phenomena for the Boost converter under current-mode control. The precise discrete iterative mode is compiled in M file of MATLAB to obtain the bifurcation diagram, the Poincare mapping, the discrete value of output voltage and inductor current; The piecewise smooth switch model is built in Simulink of MATLAB to obtain the phase diagram and the time-domain chart. On the basis of two models, the bifurcation phenomena under variation of a range of circuit parameters including load resistance, have been investigated. Two kinds of model simulation results had the better consistency, which were proved the existence of bifurcation and chaos phenomena in the current-mode Boost converter.

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Chang, Chien-Hsuan, and Yi-Fan Chen. "A Transformer-Less Buck-Boost Grid-Tied Inverter with Low Leakage-Current and High Voltage-Gain." Applied Sciences 11, no. 8 (April 17, 2021): 3625. http://dx.doi.org/10.3390/app11083625.

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To improve the efficiency of photovoltaic (PV) grid-tied systems and simplify the circuit structure, many pseudo DC-link inverters have been proposed by combining a sinusoidal pulse-width modulation (SPWM) controlled buck-boost converter and a low-frequency polarity unfolder. However, due to the non-ideal characteristics of power diodes, the voltage-gain of a buck-boost converter is limited. To meet the needs of grid-connected systems with low input voltage and 220 Vrms utility, this paper uses two two-switch buck-boost converters with coupled inductors to develop a transformer-less buck-boost grid-tied inverter with low leakage-current and high voltage-gain. The proposed inverter is charging on the primary side of the coupled inductor and discharging in series on the primary side and the secondary side so that the voltage-gain can be greatly increased. Furthermore, the utility line can be connected to the negative end of the PV array to suppress leakage current, and the unfolding circuit can be simplified to reduce the conduction losses. High-frequency switching is only performed in one metal-oxide-semiconductor field-effect transistor (MOSFET) in each mode, which can effectively improve conversion efficiency. A prototype was implemented to obtain experimental results and to prove the validity of the proposed circuit structure.

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Yang, Yan, Dongdong Li, and Dongqing Wang. "Dynamic Analysis of the Switched-Inductor Buck-Boost Converter Based on the Memristor." Electronics 10, no. 4 (February 11, 2021): 452. http://dx.doi.org/10.3390/electronics10040452.

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The direct current (DC)–DC converter presents abundant nonlinear phenomena, such as periodic bifurcation and chaotic motion, under certain conditions. For a switched-inductor buck-boost (SIBB) converter with the memristive load, this paper constructs its state equation model under two operating statuses, investigates its chaotic dynamic characteristics, and draws and analyzes the bifurcation diagrams of the inductive current and phase portraits, under some parameter changing by the MATLAB simulation based on the state equation. Then, by applying certain minor perturbations to parameters, the chaotic phenomenon suppression method is explored by controlling peak current in continuous current mode (CCM) to keep the converter run normally. Finally, the power simulation (PSIM) verifies that the waveforms and the phase portraits controlling the corresponding parameters are consistent with those of the MATLAB simulation.

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RAVICHANDRAN, SHAMA, K. S. NAGARAJ, and S. K. PATNAIK. "DESIGN AND IMPLEMENTATION OF A NOVEL CONTROL ARCHITECTURE BY COMBINING H∞ AND SLIDING MODE SCHEMES FOR A BOOST CONVERTER." Journal of Circuits, Systems and Computers 22, no. 01 (January 2013): 1250066. http://dx.doi.org/10.1142/s0218126612500661.

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A two-loop control has been designed for a boost converter. An internal sliding-mode control loop forces the converter inductor current to track the reference established by H∞ control of the output voltage in an outer loop. The outer H∞ controller is designed through loop shaping concepts. A practical design approach that aims at systematizing the procedure for the selection of inner sliding mode control parameters is also presented. The closed loop characteristics of a typical low-power boost converter with the proposed dual loop controller implemented in the actual switched model is validated through computer simulation. The proposed controller is found to be superior due to its low distortion property, good regulating performance and insensitivity to load variations. Finally, the validity and effectiveness of the control schemes are verified through hardware experiments.

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Yang, Chen, Shaojun XIE, Ling Mao, and Zhao Zhang. "Efficiency improvement on two‐switch buck‐boost converter with coupled inductor for high‐voltage applications." IET Power Electronics 7, no. 11 (November 2014): 2846–56. http://dx.doi.org/10.1049/iet-pel.2013.0739.

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Wolfs, P., and Q. Li. "Isolated Zero-Voltage Switching Two-Inductor Boost Converter With two Coupled Input Inductors and one Magnetic Core." Australian Journal of Electrical and Electronics Engineering 6, no. 3 (January 2009): 241–48. http://dx.doi.org/10.1080/1448837x.2009.11464242.

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Aihsan, M. Z., N. I. Ahmad, W. A. Mustafa, N. A. Rahman, and J. A. Soo. "Development of square wave inverter using DC/DC boost converter." International Journal of Power Electronics and Drive Systems (IJPEDS) 10, no. 2 (June 1, 2019): 636. http://dx.doi.org/10.11591/ijpeds.v10.i2.pp636-644.

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This paper proposes an alternative topology of an inverter to the existing topologies available in the market. A prototype is intended with the purpose of investigates the possibility of designing an inverter using two Boost Converters. This project initialized with a series of simulations using Matlab in order to determine the feasibility of the proposed topology. The next step is the design and development of the proposed prototype where suitable electronics components are chosen based on the simulation result. A PIC microcontroller is used to control the proposed prototype where a control scheme is created based on the programming in the microcontroller. The performance of the proposed prototype has been verified to be optimum by several practical testing using different values of capacitor, inductor and duty cycle. Lastly, data and analysis are presented in a proper mannered way. In the end, this project intends to produce stepped-up square wave output voltage waveform by proper controlling of two Boost Converters.

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Aihsan, M. Z., N. I. Ahmad, W. A. Mustafa, N. A. Rahman, and J. A. Soo. "Development of square wave inverter using DC/DC boost converter." International Journal of Power Electronics and Drive Systems (IJPEDS) 10, no. 2 (June 1, 2019): 636. http://dx.doi.org/10.11591/ijpeds.v10.i2.pp636-645.

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This paper proposes an alternative topology of an inverter to the existing topologies available in the market. A prototype is intended with the purpose of investigates the possibility of designing an inverter using two Boost Converters. This project initialized with a series of simulations using Matlab in order to determine the feasibility of the proposed topology. The next step is the design and development of the proposed prototype where suitable electronics components are chosen based on the simulation result. A PIC microcontroller is used to control the proposed prototype where a control scheme is created based on the programming in the microcontroller. The performance of the proposed prototype has been verified to be optimum by several practical testing using different values of capacitor, inductor and duty cycle. Lastly, data and analysis are presented in a proper mannered way. In the end, this project intends to produce stepped-up square wave output voltage waveform by proper controlling of two Boost Converters.

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39

Gao, Yanying, Hongchen Liu, and Jian Ai. "Novel High Step-Up DC–DC Converter with Three-Winding-Coupled-Inductors and Its Derivatives for a Distributed Generation System." Energies 11, no. 12 (December 7, 2018): 3428. http://dx.doi.org/10.3390/en11123428.

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A novel step-up DC-DC converter with a three-winding-coupled-inductor which integrates a coupled-inductor and voltage-boost techniques for a distributed generation system is proposed in this paper. The two windings of the dotted terminal connection are charged by the input source; the proposed converter utilized smaller turn ratios, and can achieve higher gain when the active switch is turned on. The passive lossless clamped circuits not only can absorb the leakage energy, but also lower the switch voltage stresses; additionally, the reverse-recovery problem of diodes can be reduced to improve the system efficiency. Furthermore, the voltage stress of the output capacitor is reduced. The operating principle and corresponding theoretical analyses are discussed in detail. Finally, an experimental prototype with 50 kHz switching frequency, 40 V input voltage, 380 V output voltage and 400 W output power is set up to verify the validity of the proposed converter.

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Rąbkowski, Jacek, and Rafał Kopacz. "Extended T-type Inverter." Power Electronics and Drives 3, no. 1 (December 1, 2018): 55–64. http://dx.doi.org/10.2478/pead-2018-0015.

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Abstract This paper presents a new concept for a power electronic converter - the extended T-type (eT) inverter, which is a combination of a three-phase inverter and a three-level direct current (dc)/dc converter. The novel converter shows better performance than a comparable system composed of two converters: a T-type inverter and a boost converter. At first, the three-level dc/dc converter is able to boost the input voltage but also affects the neutral point potential. The operation principles of the eT inverter are explained and a simulation study of the SiC-based 6 kVA system is presented in this paper. Presented results show a serious reduction of the DC-link capacitors and the input inductor. Furthermore, suitable SiC power semiconductor devices are selected and power losses are estimated using Saber software in reference to a comparative T-type inverter. According to the simulations, the 50 kHz/6 kVA inverter feed from the low voltage (250 V) shows <2.5% of power losses in the suggested SiC metal oxide-semiconductor field-effect transistors (MOSFETs) and Schottky diodes. Finally, a 6 kVA laboratory model was designed, built and tested. Conducted measurements show that despite low capacitance (2 × 30 μF/450 V), the neutral point potential is balanced, and the observed efficiency of the inverter is around 96%.

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Mohapatra, Tapas Kumar, Asim Kumar Dey, Krushna Keshab Mohapatra, and Binod Sahu. "A novel non-isolated positive output voltage buck-boost converter." World Journal of Engineering 16, no. 1 (February 11, 2019): 201–11. http://dx.doi.org/10.1108/wje-06-2018-0214.

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Purpose A two switches non-isolated DC-DC novel buck-boost converter for charging the battery of electric vehicle is projected in this paper. The performance of the converter is compared with conventional buck-boost and transformer-less P/O buck-boost converter by Shan and Faqiang. The detail operation and performance analysis of the proposed converter is described both in continuous conduction mode and discontinuous conduction mode. A state space model and simulation model is designed in MATLAB. The PID controller parameters are tuned using Single-objective Salp swarm optimization algorithm using MATLAB. The controller is implemented using DSP board. The hardware and simulation results are projected in the paper to validate the effectiveness of the proposed buck-boost converter. A comparison analysis is projected among conventional converter and Shan & Faqiang converter. Design/methodology/approach The converter state space model is designed and simulation model is also developed in MATALAB. The controller is implemented using DSP board. The parameters are obtained using optimization technique using SSA algorithm. The hardware design is also implemented, and the result is compared with the Shan and Faqiang converter. The efficiency of the converter is also tested. Findings The converter is providing a higher efficiency. The inductor current is also positive in both buck and boost mode. The robustness of the controller is better for a wide range of variation of input voltage because the output voltage remains almost constant. Therefore, this is very suitable for battery charging and PV module application. Practical implications For battery charging from PV module where voltage fluctuation is frequent. Social implications The authors can use household applications to charge the battery using PV module. Originality/value The converter design concept is new. Optimization is used to find the parameters of the controllers and is implemented in hardware design. The parameters obtained provide robustness in the converter performance.

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Daya John Lionel, Febin, Jacintha Dias, Mohan Krishna Srinivasan, Balamurugan Parandhaman, and Prajof Prabhakaran. "A novel non-isolated dual-input DC-DC boost converter for hybrid electric vehicle application." International Journal of Emerging Electric Power Systems 22, no. 2 (February 5, 2021): 191–204. http://dx.doi.org/10.1515/ijeeps-2020-0229.

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Abstract This paper proposes a novel non-isolated multi-input dc-dc boost converter for electrical vehicle application. A hybrid system balances the power of the system by using two or more sources. The power between the input sources can be flexibly distributed without any distortion. The charging or discharging of the energy storage systems by other input energy sources can also be monitored in a proper manner and is a feasible task. The design consists of only one inductor and the charging and discharging of the energy storage system decides the operation modes of the converter. In this paper, every operating mode has a small signal model that leads to the control system design for the converter. Simulation and experimental results are provided to prove the validity of the converter and the performance of its control system.

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V. Girija and Dr. D. Mural. "Simulation and Steady State Analysis of a Non-isolated Diode Rectifier-fed DC-DC Boost Converter with High Static Voltage Gain." International Journal for Modern Trends in Science and Technology 7, no. 03 (April 10, 2021): 20–25. http://dx.doi.org/10.46501/ijmtst0703004.

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This paper presents the simulation and analysis of a non-isolated step-up DC-DC converter operating in continuous inductor current mode with fixed switching frequency. The proposed converter proves better steady state performance in terms of improved voltage gain compared to the conventional boost configuration. The suggested two stage converter topology is fed by an uncontrolled diode bridge rectifier for which the sinusoidal input AC voltage is (50/ 2 ) V (rms). The design of the converter is such that the input AC voltage of (50/ 2 ) V (rms) is stepped up to around 256 V (DC) at the load end for the duty ratio value of 0.8. The performance of the proposed converter configuration is validated through simulation in Matlab/Simulink platform. The open-loop configuration provides higher constant output voltage profile compared to the conventional boost topology. The output voltage and current profiles show reduced settling time with almost no overshoot. The output voltage ripple is reduced to lower value. The suggested configuration ensures that the voltage-current stress across the switches is also reduced.

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Yang, Fei, Xinbo Ruan, Gang Wu, and Zhihong Ye. "Discontinuous-Current Mode Operation of a Two-Phase Interleaved Boost DC–DC Converter With Coupled Inductor." IEEE Transactions on Power Electronics 33, no. 1 (January 2018): 188–98. http://dx.doi.org/10.1109/tpel.2017.2669401.

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Mazumder, Sudip K., and Ali H. Nayfeh. "A New Approach to the Stability Analysis of Boost Power-Factor-Correction Circuits." Journal of Vibration and Control 9, no. 7 (July 2003): 749–73. http://dx.doi.org/10.1177/1077546303009007002.

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We analyze the stability of a boost power-factor-correction (PFC) circuit using a hybrid model. We consider two multi-loop controllers to control the power stage. For each closed-loop system, we treat two separate cases: one for which the switching frequency is approaching infinity and the other for which it is finite but large. Unlike all previous analyses, the analysis in this paper investigates the stability of the converter in the saturated and unsaturated regions of operation. Using concepts of discontinuous systems, we show that the global existence of a smooth hypersurface for the boost PFC circuit is not possible. Subsequently, we develop conditions for the local existence of each of the closed-loop systems using a Lyapunov function. In other words, we derive the conditions for which a trajectory will reach a smooth hypersurface. If the trajectories do not reach the sliding surface, then the system saturates. As such, the stability of the period-one orbit is lost. Using the conditions for existence and the concept of equivalent control, we show why, for the second closed-loop system, the onset of the fast-scale instability occurs when the inductor current approaches zero. For this system, we show that the onset of the fast-scale instability near zero-inductor current occurs for a lower line voltage. Besides, when the peak of the line voltage approaches the bus voltage, the fast-scale instability may occur not only at the peak but also when the inductor current approaches zero. We develop a condition which ensures that the saturated region does not have any stable orbits. As such, a solution that leaves the sliding surface (if existence fails) cannot stabilize in the saturated region. Finally, we extend the analysis to the case in which the converter operates with a finite but large switching frequency. As such, the system has two fundamental frequencies: the switching and line frequencies. Hence, the dynamics of the system evolve on a torus. We show two different approaches to obtaining a solution for the closed-loop system. For the second closed-loop system, using the controller gain for the current loop as a bifurcation parameter, we show (using a Poincaré map) the mechanism of the torus breakdown. If the mechanism of the torus breakdown is known, then, depending on the post-instability dynamics, a designer can optimize the design of the closed-loop converter.

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Hossameldin, Abdelsalam, Ibrahim, and Williams. "Enhanced Performance Modified Discontinuous PWM Technique for Three-Phase Z-Source Inverter." Energies 13, no. 3 (January 26, 2020): 578. http://dx.doi.org/10.3390/en13030578.

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Various industrial applications require a voltage conversion stage from DC to AC. Among them, commercial renewable energy systems (RES) need a voltage buck and/or boost stage for islanded/grid connected operation. Despite the excellent performance offered by conventional two-stage converter systems (dc–dc followed by dc–ac stages), the need for a single-stage conversion stage is attracting more interest for cost and size reduction reasons. Although voltage source inverters (VSIs) are voltage buck-only converters, single stage current source inverters (CSIs) can offer voltage boost features, although at the penalty of using a large DC-link inductor. Boost inverters are a good candidate with the demerit of complicated control strategies. The impedance source (Z-source) inverter is a high-performance competitor as it offers voltage buck/boost in addition to a reduced passive component size. Several pulse width modulation (PWM) techniques have been presented in the literature for three-phase Z-source inverters. Various common drawbacks are annotated, especially the non-linear behavior at low modulation indices and the famous trade-off between the operating range and the converter switches’ voltage stress. In this paper, a modified discontinuous PWM technique is proposed for a three-phase z-source inverter offering: (i) smooth voltage gain variation, (ii) a wide operating range, (iii) reduced voltage stress, and (iv) improved total harmonic distortion (THD). Simulation, in addition to experimental results at various operating conditions, validated the proposed PWM technique’s superior performance compared to the conventional PWM techniques.

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Srideepa, C., S. Sathish Kumar, and R. Nagarajan. "High Gain and Reduced Switch Stress DC-DC Converter Topology for PV System." International Journal Of Engineering And Computer Science 7, no. 04 (April 2, 2018): 23808–16. http://dx.doi.org/10.18535/ijecs/v7i4.02.

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This paper presents a new high step-up isolated DC-DC converter topology for photovoltaic system. The suggested configuration provides a converter with high voltage gain and reduced switch stress by using three coupled inductor with two hybrid voltage multiplier cell. The operation of the proposed converter is based on a charging capacitor with a single switch in its structure. A passive clamp circuit composed of capacitors and diodes is employed in the converter structure for lowering the voltage stress on the power switch as well as increasing the voltage gain of the converter. Since the voltage stress is low in the provided topology, a switch with a small ON-state resistance can be used. As a result, the losses are decreased and the efficiency is increased. The design of DC-DC boost converter is also discussed in detail. Simulation of DC-DC converter is performed in MATLAB/Simulink and the result are verified

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Thounthong, Phatiphat, Pongsiri Mungporn, Babak Nahid-Mobarakeh, Nicu Bizon, Serge Pierfederici, and Damien Guilbert. "Improved Adaptive Hamiltonian Control Law for Constant Power Load Stability Issue in DC Microgrid: Case Study for Multiphase Interleaved Fuel Cell Boost Converter." Sustainability 13, no. 14 (July 20, 2021): 8093. http://dx.doi.org/10.3390/su13148093.

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The cascaded connection of power converters in a DC microgrid may cause instabilities. Indeed, power converters operating as external loads exhibit constant power load (CPL) behaviors. In this study, the design of the feedback controller of a multi–cell interleaved fuel cell (FC) step–up power circuit is based on the adaptive Hamiltonian control law. It includes two integral terms to confirm that there is no steady-state error in the DC bus voltage, and to guarantee the current balancing of each input inductor current. The design confirms that the desired equilibrium point is (locally) asymptotically stable by using the Lyapunov stability proof. The control approach is validated via digital simulations and experimental tests performed with a 2500 W FC converter supplied by an FC/reformer size of 2500 W and 50 V.

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Hwu, Kuo-Ing, Jenn-Jong Shieh, and Wen-Zhuang Jiang. "Interleaved Boost Converter with ZVT-ZCT for the Main Switches and ZCS for the Auxiliary Switch." Applied Sciences 10, no. 6 (March 17, 2020): 2033. http://dx.doi.org/10.3390/app10062033.

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A soft-switching interleaved topology is presented herein and applied to the boost converter. The basic operating principle is that the main power switches are turned on at zero voltage and turned off at zero current via the same auxiliary resonant circuit whose switch is turned on from zero current. Furthermore, as compared to the traditional boost converter, the proposed topology has three additional auxiliary diodes, two additional auxiliary capacitors, one additional auxiliary inductor, and one additional auxiliary switch. On the other hand, since the interleaved control is adopted herein, the difference in current between the two phases exists. Hence, the cascaded control is utilized to regulate the output voltage to the desired voltage via the first phase, whereas the current-sharing control, based on half of the input current as the current reference for the second phase, is employed so as to make the load current extracted from the two phases as evenly as possible. In this paper, the effectiveness of the proposed topology and control strategy is demonstrated by some experimental results.

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Li, Quan, and Peter Wolfs. "A Current Fed Two-Inductor Boost Converter With an Integrated Magnetic Structure and Passive Lossless Snubbers for Photovoltaic Module Integrated Converter Applications." IEEE Transactions on Power Electronics 22, no. 1 (January 2007): 309–21. http://dx.doi.org/10.1109/tpel.2006.886597.

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Journal articles on the topic 'Two-inductor boost converter'

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