Results 261 to 270 of about 21,893 (304)

Control strategy for balancing capacitor voltage of modular multilevel converter

2014 17th International Conference on Electrical Machines and Systems (ICEMS), 2014
The Modular Multilevel Converter (MMC), based on cascaded multi-module structure, is suitable for highvoltage/power applications. However, among hundreds of modules, their voltage-balancing is a key problem which is attracting scholars' much attention.
Shang Ma, Yi Wang, Jinli Lv, Guolong Yu
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Current and capacitor-voltage balancing controls of three-level buck converter

2023 Research, Invention, and Innovation Congress: Innovative Electricals and Electronics (RI2C), 2023
This paper presents a control method for the three-level buck converter. The primary objective of this study is to control the inductor current to satisfy the requirements for tracking and regulation. Additionally, considering non-ideal components and the switching command signal, which includes switch drivers, it is possible for the voltage across ...
Udomkaew, Srimongkhon, Sengsui, Krittayot, Saksiri, Wiset, Gavagsaz-Ghoachani, Roghayeh, Phattanasak, Matheepot, Pierfederici, Serge   +5 more
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Control of Hybrid Modular Multilevel Converter and its Capacitor Voltage Balancing

2020 IEEE 9th International Power Electronics and Motion Control Conference (IPEMC2020-ECCE Asia), 2020
Hybrid Modular Multilevel Converter (HMMC) is a hybrid converter combined by Modular Multilevel Converter (MMC) and classic three-level PWM voltage source converter (VSC). Using extra IGBT stacks, HMMC generates a midpoint manually, which can reduce maximum arm voltage stress.
Jian Liu, Dong Dong, Di Zhang
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Cell Capacitor Voltage Switching-Cycle Balancing Control for Modular Multilevel Converters

IEEE Transactions on Power Electronics, 2022
Modular multilevel converters (MMC) with the conventional control are subjected to large capacitor voltage ripples, especially at low-line-frequencies. The existing attenuation approaches such as the second order or high-frequency harmonic injections are designed based on average models limiting the achievable performance.
Boran Fan, Jun Wang, Jianghui Yu, Slavko Mocevic, Yu Rong, Rolando Burgos, Dushan Boroyevich   +6 more
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Capacitor voltage balancing control of a flying capacitor based n-level DC-DC converter

2015 17th European Conference on Power Electronics and Applications (EPE'15 ECCE-Europe), 2015
A flying capacitor based n-level non-isolated DC-DC converter is researched in this paper. The converter features reduced flying capacitors, compact structure, adjustable output voltage and high-voltage high-power ability. Basic operating principle was analyzed and a mean value model is derived.
Boran Fan, Kui Wang, Yongdong Li, Lie Xu, Zedong Zheng   +4 more
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Capacitor Voltage Balancing Control Strategy for Converters in 500kV Sunan UPFC

2018 2nd IEEE Conference on Energy Internet and Energy System Integration (EI2), 2018
The series and shunt converters of 500 kV Sunan Unified Power Flow Controller (UPFC) substation adopt modular multilevel converter (MMC) structure, but the inaccurate sampling of bridge arm current in low power mode will affect the sub-module capacitor voltage balancing.
Deng Kai, Wang Jun, Zhu Chao, Qu Feng, Chen Xuan   +4 more
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Capacitor voltage balancing of hybrid converter based on nearest level control

2015 International Conference on Circuits, Power and Computing Technologies [ICCPCT-2015], 2015
Hybrid converter is recently introduced converter topology for high voltage applications. The converter comprises combination of director switches and a wave-shaping circuit assembled with capacitors. Director switch is made of cascaded IGBTs and waveshaping circuit consisting stack of H-bridge cells. This paper presents Nearest level control technique
M. S. Bhise, K. Vadirajacharya
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Multiple boundaries sliding mode control applied to capacitor voltage-balancing systems

Communications in Nonlinear Science and Numerical Simulation, 2020
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Rony Cristiano, Daniel J. Pagano, Marduck M. Henao   +2 more
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Fuzzy Controlled Capacitor Voltage Balancing Control for a Three Level Boost Converter

International Journal of Engineering Trends and Technology, 2015
A three-level boost converter uses a smaller inductor and lower voltage devices than the conventional boost converter. It has two capacitors connected in series across the output which leads to voltage imbalance problem due to mismatched capacitances. If not balanced, one of the capacitor voltages may be larger than the breakdown voltage of the switch,
Neethu Rajan, Dhivya Haridas, Thanuja Mary Abraham   +2 more
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A DC capacitor voltage balance control method of cascaded multilevel STATCOM

2011 2nd International Conference on Artificial Intelligence, Management Science and Electronic Commerce (AIMSEC), 2011
In this paper, a method of energy self-balancing capacitor voltage waveform superposition based on equivalent area was presented, on the basis of which a control method of the capacitor voltage offset correction using the transposition of pulse, a rotation method of specific order selecting pulse, was proposed.
null Yang Bo, null Zeng Guang, null Zhong Yanru   +2 more
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