Results 11 to 20 of about 2,077 (260)
A Novel Z-Type Self-Balancing Modular Multilevel Converter for Flywheel Driving Applications [PDF]
E3S Web of Conferences, 2021 With the development of flywheel technology, the speed and the voltage level of flywheel continue to increase. The Z-type self-balancing modular multilevel converter can have a wide frequency range at medium voltage and is suitable for flywheel driving ...
Cheng Shuoqi +4 more
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Frequency-Decrease Effect and Inhibitory Strategies for Capacitor Voltage in MMC-UPFCs Based on Tagging Technology [PDF]
Dianli jianshe[Objective] In this study， we aim to address the submodule capacitor voltage frequency reduction effects and the resulting deterioration in system switching losses and harmonic performance in modular multilevel converter （MMC）-based unified power flow ...
WANG Chuyang, ZHANG Mengjie, ZHAO Yunlong, ZOU Yuting, ZHANG Li
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Advances in Electrical and Computer Engineering, 2021 Modular multilevel converters (MMCs) can be a reliable solution since they have modular structure and high quality output waveform for permanent magnet synchronous generator (PMSG) based wind energy conversion system (WECS). Capacitor voltage balancing
VURAL, A. M., KURTOGLU, M., EROGLU, F.
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The Research of Capacitor Voltage Balancing Strategy of MMC [PDF]
Advances in Engineering Research, 2015 Compared with the two level voltage source, the modular multilevel converter (MMC) adopting the modular design dose not have the disadvantages such as the direct series connected Insulated gate bipolar (IGBT),high generation of harmonics, etc. MMC is currently studied and applied in high voltage and high power conversion applications.
Jianpo Zhang, Jichen Liu, Xiufang Jia
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A Wind Energy Prediction Scheme Combining Cauchy Variation and Reverse Learning Strategy
Advances in Electrical and Computer Engineering, 2021 Modular multilevel converters (MMCs) can be a reliable solution since they have modular structure and high quality output waveform for permanent magnet synchronous generator (PMSG) based wind energy conversion system (WECS). Capacitor voltage balancing
WU, X., SHEN, X., ZHANG, J., ZHANG, Y.
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Active Voltage Balancing of Series Connected SiC MOSFET Submodules Using Pulsewidth Modulation
IEEE Open Journal of Power Electronics, 2021 Series connection of multiple transistors is an attractive solution to achieve higher voltage capability. However, the voltage imbalance among the series-connected devices is a critical issue caused by mismatches of device characteristics and gate ...
Inhwan Lee, Xiu Yao
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Zhongguo dianli, 2019 The capacitor voltage balance of modular multilevel converter is the key to its stable operation, aiming at problem of large calculation amount and high switching frequency existing in traditional capacitor voltage balancing strategy. This paper proposes
Fengyang GAO +3 more
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IEEE Access, 2019 A novel capacitor voltage balancing scheme for modular multilevel cascade converter-double-star chopper-cells (MMCC-DSCC)-based STATCOM is proposed in this paper.
Yu Jin +8 more
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Capacitor voltage balancing control with reducing the average switching frequency in MMC
The Journal of Engineering, 2019 Modular multilevel converter (MMC) has a very good application prospect in the flexible high-voltage direct current (HVDC) transmission, but higher self-loss will affect the efficiency and restrict the development.
Shunliang Wang +4 more
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Improved Control of Capacitor Voltage Balancing in Modular Multilevel Converter Submodules
IEEE AccessAn improved incremental capacitor voltage balancing control strategy is proposed to solve the problems of large switching frequency, high complexity of the bubble method sorting algorithm, and exceeding the limit of the capacitor voltage fluctuation rate
Yanling Lyu, Yuansong Zi, Xiaowei Li
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