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A new voltage-balancing controller in cascaded multilevel converters
2011 IEEE Energy Conversion Congress and Exposition, 2011Voltage-balancing controller in cascaded multilevel converters has been discussed extensively in previous literatures where several effective methods have been proposed. The coupling effect between a voltage-balancing controller and the original system controller is however not addressed comprehensively.
Xu She +5 more
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Voltage Balancing Scheme Based on Active Voltage Cross Control for Series-Connected IGBTs
2020 IEEE 9th International Power Electronics and Motion Control Conference (IPEMC2020-ECCE Asia), 2020In order to increase the rating voltage in high voltage power converters, series connection of IGBTs is an alternative method. The key challenge is to reduce the collector-emitter voltage mismatch during the steady state and switching transients. Due to the fact that the master-slave control strategy lacks control ability of the master device, an ...
Jiahong Liu +3 more
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Voltage balancing control of a novel modular multilevel converter
2011 4th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies (DRPT), 2011The Modular Multilevel Converter (MMC) is an emerging and highly attractive multilevel converter topology for medium and high voltage applications. In this paper, the equivalent circuit and power transmission model of MMC is proposed, based on which, the idea that control the current of positive leg and negative leg independently is brought up and a ...
Lanhua Zhang, Guangzhu Wang
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Voltage-Balanced Control for a Cascaded 3H-Bridge Rectifier
2016This paper studies the CHBR (Cascaded H-Bridge Rectifier)’s DC side capacitor voltage balance control algorithm, introduces single-phase DQ coordinate transformation, deduces the mathematical model in this coordinate. This uses feed-forward decoupled control strategy to keep voltage and current of AC side in the same phase, puts forward an improved ...
Ziyi Fu, Boxiang Zhang, Xuejuan Xiong
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Induction Machine Phase Balancing by Unsymmetrical Thyristor Voltage Control
IEEE Transactions on Industry Applications, 1985High inrush currents and unbalanced supply voltages are two of the major causes for failure of polyphase induction machines. While thyristor voltage controllers, sometimes called static starters, are in widespread use to limit damaging inrush currents, little attention has been paid to the use of these controllers to balance the phases voltages of the ...
Eduard Muljadi +2 more
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Voltage-Balancing Control for Stand-Alone H5 Transformerless Inverters
2019In photovoltaic inverters, transformerless inverter has been emerging trend in recent years. Control of transformerless inverter keeping all other parameters in consideration is a major concern. This paper presents proportional–integral–derivative (PID) and fuzzy-based control strategies for H5 inverter topologies describing their principal functions ...
Mohammed Ali Khan +2 more
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DC Side Voltage Balancing Control for The Medium Voltage Cascaded H Bridge APF
2018 37th Chinese Control Conference (CCC), 2018The cascaded H-bridge APF is one of the best solutions for suppressing harmonics and compensating reactive current in the medium voltage field, but the balance of DC side voltage has become a difficult problem for its application. Therefore, the mathematical model of cascaded APF in medium voltage is established and its fluctuating process is analyzed ...
Jianghao Huang +4 more
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Improved Capacitor Voltage Balancing Control for MMC Considering Voltage Convergence
2023 IEEE 7th Conference on Energy Internet and Energy System Integration (EI2), 2023Zan Jia +4 more
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A High Voltage Gain Resonance Converter and its Voltage Balance Control
2023 IEEE 2nd International Power Electronics and Application Symposium (PEAS), 2023Hang Li +3 more
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The 2010 International Power Electronics Conference - ECCE ASIA -, 2010
A current-balancing loop is often used in a voltage-mode multiphase interleaved voltage regulator (VR). It serves not only to balance the phase current but also to suppress the beat-frequency phase current oscillation in driving high-frequency dynamic loads such as recent central processing units (CPUs).
Ming-Ting Tsai +4 more
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A current-balancing loop is often used in a voltage-mode multiphase interleaved voltage regulator (VR). It serves not only to balance the phase current but also to suppress the beat-frequency phase current oscillation in driving high-frequency dynamic loads such as recent central processing units (CPUs).
Ming-Ting Tsai +4 more
openaire +1 more source