Готові списки джерел за темами / Voltage balancing module

Добірка наукової літератури з теми "Voltage balancing module"

Автор: Grafiati
Опубліковано: 30 травня 2022
Оновлено: 31 травня 2022

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Статті в журналах з теми "Voltage balancing module"

1

Peng, Faxiang. "Hierarchical Modular Battery Equalizer With Open-Loop Control and Mitigated Recovery Effect." CPSS Transactions on Power Electronics and Applications 6, no. 4 (December 2021): 310–19. http://dx.doi.org/10.24295/cpsstpea.2021.00029.

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Анотація:
In this manuscript, an advanced battery equalizer with open-loop control is proposed. This equalizer is based on a two-layer hierarchical modular architecture. The top stringto- module (S2M) layer consists of a half-bridge inverter and a voltage multiplier (VM) rectifier, and the bottom cell-to-cell (C2C) layer is implemented by bidirectional buck-boost units. Without state-of-charge (SOC) estimation, the battery charge can be automatically transferred from high-voltage cell-modules/cells to low-voltage ones. Only a pair of symmetrical pulse width modulation (PWM) driving signals with fixed switching frequency and duty cycle are required.This reduces the control complexity remarkably. Meanwhile, the balancing current of each balancing path naturally attenuates with the convergence of cell-module/ cell voltages. This ensures a fast balancing of cell-module/cell with large voltage mismatch. The battery-recovery-effect induced balancing error is also effectively mitigated. Moreover, simple control facilitates a simultaneous module and cell voltage balancing in static, charging, and discharging conditions. The operation principles are analyzed in detail. An experimental platform with eight series-connected batteries is built and tested. The measured results well validate the theoretical analysis. Both cell and module voltages automatically converge with clearly mitigated recovery effect.
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2

Liu, Van Tsai, and Jhih Rong Chen. "Balancing for Lead-Acid Batteries of Electric Motorcycles." Applied Mechanics and Materials 764-765 (May 2015): 491–95. http://dx.doi.org/10.4028/www.scientific.net/amm.764-765.491.

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Анотація:
For high-power applications such as electric motorcycles, batteries in series to provide the required voltage is fairly common. The 48V is 12V connected four cells in series for lead-acid batteries of electric motorcycles. After charging and discharging of lead-acid batteries several times, the voltages are often imbalance. Without proper protection, may cause an excessive discharge of lead-acid batteries for early damage. Therefore, lead-acid battery module requires a simple balance circuit to improve battery life in order to avoid over-voltage or under-voltage condition occurs. Energy balance circuit to improve lead-acid battery module matching problems, make the safety and cycle life of lead-acid batteries to improve. This research intends to complete balanced circuit design of lead-acid batteries.
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3

Chen, Hung-Cheng, Shin-Shiuan Li, Shing-Lih Wu, and Chung-Yu Lee. "Design of a Modular Battery Management System for Electric Motorcycle." Energies 14, no. 12 (June 14, 2021): 3532. http://dx.doi.org/10.3390/en14123532.

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Анотація:
This paper proposes a modular battery management system for an electric motorcycle. The system not only can accurately measure battery voltage, charging current, discharging current, and temperature but also can transmit the data to the mixed-signal processor for battery module monitoring. Moreover, the system can control the battery balancing circuit and battery protection switch to protect the battery module charging and discharging process safety. The modular battery management system is mainly composed of a mixed-signal processor, voltage measurement, current measurement, temperature measurement, battery balancing, and protection switch module. The testing results show that the errors between the voltage value measured by the voltage measurement module and the actual value are less than 0.5%, about 1% under the conditions of different charging and discharging currents of 9 A and 18 A for the current measuring module, less than 1% for the temperature measurement module; and the battery balancing in the battery management system during the charging process. When the module is charged at 4.5 A for about 805 s, each cell of the battery has reached the balancing state. Finally, the testing results validate that the modular battery management system proposed in this paper can effectively manage the battery balancing of each cell in the battery module, battery module overcharge, over-discharge, temperature protection, and control.
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4

Pang, Yuqi, Gang Ma, Xunyu Liu, Xiaotian Xu, and Xinyuan Zhang. "A New MMC Sub-Module Topology with DC Fault Blocking Capability and Capacitor Voltage Self-Balancing Capability." Energies 14, no. 12 (June 9, 2021): 3409. http://dx.doi.org/10.3390/en14123409.

Повний текст джерела
Анотація:
A large number of modular multilevel converters (MMC) are connected to HVDC transmission systems nowadays. This paper aims at the short-circuit fault in the DC line of the HVDC transmission system and the problem of capacitor voltage imbalance in MMC, proposing a new type of MMC sub-module, which has both the DC fault self-clearing ability and the capacitor voltage self-balancing ability. This sub-module combines the topology of half bridge and full bridge. It uses the reverse capacitor voltage to forcibly turn off the conducting diode to block the fault current loop. At the same time, the two capacitances charge and discharge states are consistent by utilizing the operating mode of the sub-module. It is possible to directly achieve a self-balancing capacitor voltage without complex balancing voltage control. The MATLAB/Simulink simulation verifies the effectiveness of the DC fault blocking capability and capacitor voltage balance capability of the proposed sub-module.
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5

Syarif, Nirwan, Dedi Rohendi, Wulandari Sudarsono, and Wai Yin Wong. "Module Stabilizing of Biocarbon Based Electrochemical Capacitor." International Journal of Sustainable Transportation Technology 2, no. 1 (April 30, 2019): 32–38. http://dx.doi.org/10.31427/ijstt.2019.2.1.5.

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Анотація:
One of the disadvantages of the electrochemical capacitor (EC) or supercapacitor compared with batteries is its low specific energy. It limits of EC to meet the energy needs of the electrical-electronic devices, such as electric cars. To overcome those limitations, it needs a serial circuit to increase the voltage range, and parallel circuits to increase the storage capacity. Practically, the module that built from 2-6 pieces of 2.5V EC cells will not feasible to make the module with the voltage of 5-15 V. It was found that the voltage of the EC cell could decreases to about 2.0 V, so that the capacitance of the module significantly reduced. This paper reports the basic methods that can be applied to overcome these problems by using a stabilizing or balancing component. The balancing components used in this study were a resistor, a Zener diode, and a Schottky diode. Each component was attached to every EC cell. The influence of the Zener and Schottky diode was observed as a component of a blocking diode. The results showed that the use of a 100-ohm resistor and Zener diode reduces voltage peaks while the use of blocking diode modules leads to increased discharge time. In general, there was no significant change in the charging time, both with and without the balancing and blocking component.
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6

Bui, Thuc, Chang-Hwan Kim, Kyu-Ho Kim, and Sang Rhee. "A Modular Cell Balancer Based on Multi-Winding Transformer and Switched-Capacitor Circuits for a Series-Connected Battery String in Electric Vehicles." Applied Sciences 8, no. 8 (August 1, 2018): 1278. http://dx.doi.org/10.3390/app8081278.

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Анотація:
In this paper, a cell balancing topology for a series-connected Lithium-Ion battery string (SCBS) in electric vehicles is proposed and experimentally verified. In particular, this balancing topology based on the modular balancer consists of an intra-module balancer based on a multi-winding transformer circuit and an outer-module balancer based on a switched capacitor converter, both offering the potential advantages and over conventional balancing methods, including short equalization time, simple control scheme, elimination of voltage sensors. In addition, a number of cells in the SCBS can be easily extended in this circuit. Furthermore, a system structure and an operating principle of the proposed topology are analyzed and experimentally verified for three different cases. The voltages of all cells in the SCBS reached the balanced state regardless of the various arrangement of the initial voltage, where the energy efficiency of the circuit reached 83.31%. Our experimental realization of the proposed balancing topology shows that such a technique could be employed in electric vehicles.
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7

Li, Sheng Qing, Wen Xiang Xu, Wei Zhou Li, and Huan Yue Zeng. "DC Capacitor Voltage Balancing Control for Cascaded STATCOM." Applied Mechanics and Materials 325-326 (June 2013): 1221–24. http://dx.doi.org/10.4028/www.scientific.net/amm.325-326.1221.

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Анотація:
Through the DC side capacitor voltage unbalance problem of cascaded static synchronous compensator. Put through a theory of active voltage average distribution to balance DC capacitor voltage, using master slave controller to realize controlling requirements. The main controller calculates each phase AC side of H bridge required total active and reactive voltage and grid voltage phase information etc, The slave controller complete each cascade module for active voltage average distribution control. The simulation results show that the method is feasible and effective.
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8

Jing, Ji Min, Jing Ze Wang, and Yan Chao Ji. "Research on the Voltage Balance Strategy of Modular Multilevel Converter." Advanced Materials Research 1055 (November 2014): 157–60. http://dx.doi.org/10.4028/www.scientific.net/amr.1055.157.

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Анотація:
The modular multilevel converter (MMC) does not need clamping devices and multiple independent DC voltage source and has a modular structure which is easy to be extended to any level, share a DC side, easy to direct back to back four-quadrant operation and attracts widespread attention. Due to the use of sub-module MMC suspended on the DC side capacitor voltage divider provides synthetic AC output voltage required voltage level and therefore it is essential to the stable operation of the sub-module capacitor voltage balance of the MMC. In this paper, the factors affecting the MMC sub-module capacitor voltage balancing has been carried out a detailed analysis and this paper focuses on the nominal frequency erupted module capacitor voltage control strategies and the average low frequency sub-module capacitor voltage ripple suppression strategies.
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9

Saminathan S & Dr. Ranjithkumar K. "Multicarrier PWM Based Control of Modular Multilevel Inverter with Grid Connected Solar PV System." International Journal for Modern Trends in Science and Technology 7, no. 05 (May 27, 2021): 72–80. http://dx.doi.org/10.46501/ijmtst0705011.

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Анотація:
In this work, a new modular multilevel inverter topology is introduced for a single phase grid connected Photovoltaic system. This multilevel inverter use less number of switches to generate seven levels compared to other conventional multilevel inverters. This requires only one isolated dc source to operate. So it is suitable for renewable energy application. This inverter is designed by submodule configuration; each sub module contains two switches and one DC link capacitor. The sub modules will be added to the inverter depending on number of levels. The voltage balancing of DC link capacitor is carried out by Y matrix PWM technique. Because of Y matrix PWM technique, the inverter gets a self capacitor voltage balancing ability. So there is no need of external devices required for balancing the voltage of capacitor. A PLL for grid integration and LCL filter are designed and integrated with this inverter. The simulation of proposed system is carried out by MATLAB/SIMULINK and performance of THD is monitored as per standards
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10

Yu, Le, Xu Peng, and Shibin Gao. "Voltage-Balancing Strategy for Three-Level Neutral Point Clamped Cascade Converter under Sequence Pulse Modulation." Energies 12, no. 20 (October 10, 2019): 3829. http://dx.doi.org/10.3390/en12203829.

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Анотація:
In response to the unbalanced DC-port fault of three-level neutral point clamped cascaded converter (3LNPC-CC), a sequence pulse modulation (SPM) voltage-balancing strategy is proposed in this paper to balance DC-link voltage, not only within the module but also among modules. With the steps of carrier cascaded calculation and sequence pulse generator, the voltage level of cascaded modules would take a smooth transition. Then the limitation of the SPM strategy is calculated according to the law of volt-second balance and the law of energy conservation. The proposed strategy has the advantage of simple calculation and control stability. Simulation and experimental results show the superiority of the proposed strategy.
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Більше джерел

Дисертації з теми "Voltage balancing module"

1

Карпов, Михайло Анатолійович. "Модуль балансування акумулятора LiFePO4 для електромобіля". Master's thesis, Київ, 2018. https://ela.kpi.ua/handle/123456789/25849.

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Анотація:
Актуальність теми. Розробка нової ідеї застосування акумулятора в сфері електромобілів. Мета дослідження. Метою МД є дослідження процесу балансування напруги на комірках акумулятора при використанні різних за точністю модулів захисту комірок від перезаряду. Для досягнення поставленої мети необхідно виконати такі задачі: – Експериментальна модель комірки батареї; – Розробка алгоритму балансування комірок; – Розробка методики дослідження; Об’єкт дослідження – модуль для балансування комірок акумулятора. Предмет дослідження - дослідження затраченого часу на повну зарядку акумулятора від заданої точності модуля захисту комірки. Методи дослідження: для вирішення завдань роботи були застосовані наступні методи: експериментальне моделювання зарядної характеристики та моделювання алгоритму балансування комірок за допомогою Excel. Наукова новизна одержаних результатів. Отриманні результати демонструють характеристику заряду акумулятора за розробленим алгоритмом балансування, за рахунок якого можливо створити акумулятор з великою кількістю комірок, які будуть рівномірно збалансовані після заряду, при цьому кожна комірка матиме просту схему контролю. Практичне значення одержаних результатів роботи полягає у можливості порівняти затрачений час зарядки для акумулятора з різними по точності схемами контролю перезарядки. Та оцінити доцільність використання більш точніших схем контролю перезарядки.
Relevance of the topic. Developing a new service of using the battery for electric vehicles. The aim of the study is study the process of balancing voltage on battery cells when using different precisely modules for protecting cells To achieve this goal, you must accomplish the following tasks: - Experimental model of battery cell; - Development of algorithm of balancing of cells; - Development of research methodology; Object of research: is a module for balancing battery cells. Subject of research: is the study of the time taken to fully charge the battery from the given accuracy of the recharge circuit protection circuit. Research methods: the following methods were used to solve the tasks: experimental simulation of charge characteristics and simulation of the algorithm of balancing cells using Excel. Scientific novelty of the obtained results. The results show the characteristics of the battery charge based on the developed algorithm of balancing, due to which it is possible to create a battery with a large number of cells, which will be evenly balanced after the charge, with each cell will have a simple control circuit. The practical value of the results obtained is the ability to compare the charging time spent on the battery with different precision circuitry for recharging. But assess the feasibility of using more accurate recharge control schemes.
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2

Raszmann, Emma Barbara. "Series-Connection of Silicon Carbide MOSFET Modules using Active Gate-Drivers with dv/dt Control." Thesis, Virginia Tech, 2019. http://hdl.handle.net/10919/95938.

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Анотація:
This work investigates the voltage scaling feasibility of several low voltage SiC MOSFET modules operated as a single series-connected switch using active gate control. Both multilevel and two-level topologies are capable of achieving higher blocking voltages in high-power converter applications. Compared to multilevel topologies, two-level switching topologies are of interest due to less complex circuitry, higher density, and simpler control techniques. In this work, to balance the voltage between series-connected MOSFETs, device turn-off speeds are dynamically controlled on active gate-drivers using active gate control. The implementation of the active gate control technique (specifically, turn-off dv/dt control) is described in this thesis. Experimental results of the voltage balancing behavior across eight 1.7 kV rated SiC MOSFET devices in series (6 kV total dc bus voltage) with the selected active dv/dt control scheme are demonstrated. Finally, the voltage balancing performance and switching behavior of series-connected SiC MOSFET devices are discussed.
Master of Science
According to ABB, 40% of the world's power demand is supplied by electrical energy. Specifically, in 2018, the world's electrical demand has grown by 4% since 2010. The growing need for electric energy makes it increasingly essential for systems that can efficiently and reliably convert and control energy levels for various end applications, such as electric motors, electric vehicles, data centers, and renewable energy systems. Power electronics are systems by which electrical energy is converted to different levels of power (voltage and current) depending on the end application. The use of power electronics systems is critical for controlling the flow of electrical energy in all applications of electric energy generation, transmission, and distribution. Advances in power electronics technologies, such as new control techniques and manufacturability of power semiconductor devices, are enabling improvements to the overall performance of electrical energy conversion systems. Power semiconductor devices, which are used as switches or rectifiers in various power electronic converters, are a critical building block of power electronic systems. In order to enable higher output power capability for converter systems, power semiconductor switches are required to sustain higher levels of voltage and current. Wide bandgap semiconductor devices are a particular new category of power semiconductors that have superior material properties compared to traditional devices such as Silicon (Si) Insulated-Gate Bipolar Junction Transistors (IGBTs). In particular, wide bandgap devices such as Silicon Carbide (SiC) Metal Oxide Semiconductor Field Effect Transistors (MOSFETs) have better ruggedness and thermal capabilities. These properties provide wide bandgap semiconductor devices to operate at higher temperatures and switching frequencies, which is beneficial for maximizing the overall efficiency and volume of power electronic converters. This work investigates a method of scaling up voltage in particular for medium-voltage power conversion, which can be applied for a variety of application areas. SiC MOSFET devices are becoming more attractive for utilization in medium-voltage high-power converter systems due to the need to further improve the efficiency and density of these systems. Rather than using individual high voltage rated semiconductor devices, this thesis demonstrates the effectiveness of using several low voltage rated semiconductor devices connected in series in order to operate them as a single switch. Using low voltage devices as a single series-connected switch rather than a using single high voltage switch can lead to achieving a lower total on-state resistance, expectedly maximizing the overall efficiency of converter systems for which the series-connected semiconductor switches would be applied. In particular, this thesis focuses on the implementation of a newer approach of compensating for the natural unbalance in voltage between series-connected devices. An active gate control method is used for monitoring and regulating the switching speed of several devices operated in series in this work. The objective of this thesis is to investigate the feasibility of this method in order to achieve up to 6 kV total dc bus voltage using eight series-connected SiC MOSFET devices.
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Частини книг з теми "Voltage balancing module"

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Abu-Siada, Ahmed, Mohammad A. S. Masoum, Yasser Alharbi, Farhad Shahnia, and A. M. Shiddiq Yunus. "Distribution Static Compensators and their Applications in Microgrids." In Recent Advances in Renewable Energy, 87–141. UAE: Bentham Science Publishers Ltd., 2017. http://dx.doi.org/10.2174/9781681085425117020005.

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Анотація:
Microgrids are clusters of distributed energy resources, energy storage systems and loads which are capable of operating in grid-connected as well as in offgrid modes. In the off-grid mode, the energy resources supply the demand while maintaining the voltage and frequency within acceptable limits whereas in the gridconnected mode, the energy resources supply the maximum or nominal power and the network voltage and frequency is maintained by the grid. This chapter first summarizes the structure and control principles of microgrids. It then briefly introduces the structures and control perspectives of distribution static compensators (DSTATCOMs). Finally, some applications of DSTATCOMs are discussed in microgrids. The introduced applications are power quality improvement due to the presence of nonlinear and unbalanced loads, voltage regulation and balancing, and interphase power circulation in the case of the presence of single-phase energy resources with unequal distribution amongst phases. Each application is illustrated by examples, realized in PSCAD/EMTDC.
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2

Kumar, Mahesh. "Operation of a Hydrogen Storage-Based Smart DC Microgrid." In Advances in Environmental Engineering and Green Technologies, 145–72. IGI Global, 2022. http://dx.doi.org/10.4018/978-1-6684-4012-4.ch005.

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Анотація:
In this chapter, the author presents the operation and power management of the hydrogen storage-based smart DC microgrid (DCMG). In this microgrid, several renewable distributed generations (DGs) such as wind turbine, solar photovoltaic system, solid oxide fuel cell (SOFC), and battery energy storage system are interconnected together and to the various DC and AC loads to form a ring-type low voltage distribution network. An additional storage as Hydrogen storage system has been connected to the dc microgrid for balancing the power at all times in the DCMG, under islanded mode operation, for all practical cases. An architecture of the hydrogen storage-based DC microgrid is suggested mainly for the remote rural area. For the regeneration of the electricity from the stored hydrogen, a SOFC DG system is also used in the proposed DCMG. A control technique is also developed for the operation of the hydrogen storage-based DCMG. The proposed DCMG system provides a reliable and high-quality power supply and will supply the power to all loads (both DC and AC) simultaneously.
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Тези доповідей конференцій з теми "Voltage balancing module"

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Soon-Ryung Lee, Seung-Ho Baek, and Chung-Yuen Won. "Voltage limitation control considering battery module balancing for serial connection UPS module system." In 2015 IEEE 2nd International Future Energy Electronics Conference (IFEEC). IEEE, 2015. http://dx.doi.org/10.1109/ifeec.2015.7361502.

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2

Ming, MENG, SU Yahui, and XUE Wanchen. "Voltage Balancing Control Strategy of MMC Based on Flying Capacitor Sub-module." In 2019 IEEE Sustainable Power and Energy Conference (iSPEC). IEEE, 2019. http://dx.doi.org/10.1109/ispec48194.2019.8975049.

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Farr, Ewan, Ralph Feldman, Alan Watson, Jon Clare, and Pat Wheeler. "A sub-module capacitor voltage balancing scheme for the Alternate Arm Converter (AAC)." In 2013 15th European Conference on Power Electronics and Applications (EPE). IEEE, 2013. http://dx.doi.org/10.1109/epe.2013.6634456.

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Luo, Yongjie, Zixin Li, Yaohua Li, and Ping Wang. "A distributed control method for power module voltage balancing of modular multilevel converters." In 2016 IEEE Energy Conversion Congress and Exposition (ECCE). IEEE, 2016. http://dx.doi.org/10.1109/ecce.2016.7854674.

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Wei, Ziwen, Chen Wang, Yi Wang, Jianye Tao, Zhen Zhang, and Tong Xu. "A Novel Bypass MMC Sub-module Topology And Its Capacitor Voltage Balancing Strategy." In 2021 IEEE 5th Conference on Energy Internet and Energy System Integration (EI2). IEEE, 2021. http://dx.doi.org/10.1109/ei252483.2021.9713440.

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Li, Zixin, Fanqiang Gao, Fei Xu, Zunfang Chu, Ping Wang, and Yaohua Li. "Power module voltage balancing method for a ±350 kV/ 1000 MW modular multilevel converter." In 2015 17th European Conference on Power Electronics and Applications (EPE'15 ECCE-Europe). IEEE, 2015. http://dx.doi.org/10.1109/epe.2015.7309195.

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Zhang, Zhen, Chen Wang, Yi Wang, Renbin Jiang, Ziwen Wei, and Tong Xu. "A Novel MMC H-type Sub-module with Capability of DC Fault current Clearing and Voltage Self-balancing." In 2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia). IEEE, 2021. http://dx.doi.org/10.1109/ecce-asia49820.2021.9479025.

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Saeedmanesh, Alireza, Paolo Colombo, and Jack Brouwer. "Dynamic Behavior of a Solid Oxide Steam Electrolyzer System Using Transient Photovoltaic Generated Power for Renewable Hydrogen Production." In ASME 2018 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/imece2018-86685.

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Анотація:
The purpose of this study is to investigate the dynamic behavior of a Solid Oxide Steam Electrolyzer (SOSE) system without an external heat source which uses transient photovoltaic (PV) generated power as an input to produce compressed (to 3MPa) renewable hydrogen to be injected directly into the natural gas network. A cathode-supported crossflow planar Solid Oxide Electrolysis (SOE) cell is modeled in a quasi-3D thermo-electrochemical model that spatially and temporally simulates the performance of a unit cell operating dynamically. The stack is comprised of 2500 unit cells that are assumed to be assembled into identically operating stacks, creating a 300kW electrolyzer stack module. A 15-minute resolution dataset for operation of PV generation was obtained from a database that archives PV power dynamics of systems on the University of California, Irvine campus. The dataset (comprised of data for approximately 4.1 MW of peak solar power) was scaled to a maximum of 450kW of PV generation. For the designed 300kW SOSE stack (thermoneutral voltage achieved at design steady state conditions), powered by the dynamic 0–450kW output of PV systems, thermal management and balancing of all heat supply and cooling demands is required based upon the operating voltage to enable efficient operation and prevent degradation of the SOSE stacks. The PV generation dataset was analyzed to obtain a day in which the PV generated power has its highest dynamic behavior (a cloudy day) and another day in which the PV generated power and energy is maximum (a sunny day). Dynamic system simulation results show that the SOSE system is capable of following the dynamic PV generated power for both of these days while the SOSE stack temperature gradient is always maintained below a maximum set point along the stack for both days. The system efficiency based upon lower heating value of the generated hydrogen is between 0–75% and 0–78% with daily hydrogen production of 94kg and 55kg for sunny and cloudy days, respectively.
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Joshi, Shamkant D., Mukul C. Chandorkar, and Anshuman Shukla. "Improved Balancing And Sensing of Sub-module Capacitor Voltages In Modular Multi-level Converters." In 2018 IEEE Energy Conversion Congress and Exposition (ECCE). IEEE, 2018. http://dx.doi.org/10.1109/ecce.2018.8558331.

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Mansour, Mahmoud, Dorai Babu Yelaverthi, and Regan Zane. "Voltage Balancing Control for Input-Series-Output-Parallel Three-Port Series Resonant Converter Modules." In 2022 IEEE Applied Power Electronics Conference and Exposition (APEC). IEEE, 2022. http://dx.doi.org/10.1109/apec43599.2022.9773534.

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