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Selection-based capacitor voltage balancing control for modular multilevel converters
Journal of Power Electronics, 2021The modular multilevel converter (MMC) is a promising topology for high-power converters. The capacitor voltage balancing method for the submodules (SMs) is one of the key technologies in terms of modular multilevel converters. Aiming at the problems of the large calculation burden and the high switching frequency in the traditional capacitor voltage ...
Wei Luo, Yifan Ma, Changbao Zheng
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DC Capacitor Voltage Balancing Control for Cascaded STATCOM
Applied Mechanics and Materials, 2013Through 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.
Sheng Qing Li +3 more
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Capacitor voltage balancing control for series MMC tap
IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society, 2017The series HVDC tap based on modular multilevel converter (MMC) has been proposed to provide power supply for rural places. However, most of current capacitor voltage balancing control strategies are not suitable for series MMC tap. In this paper, the principle of power transfer between phases, arms and sub-modules (SMs) in a series MMC are analyzed. A
Zigao Xu +3 more
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A Capacitor Voltage Balancing Control Strategy for Modular Multilevel Converter
Electric Power Components and Systems, 2020Modular multilevel converter (MMC) is a promising highly modular converter. However, the problems of voltage balancing control strategies in the MMC should be studied in detail.
Leilei Guo, Yishu Sun, Nan Jin
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Active capacitor voltage balancing control for three-level flying capacitor boost converter
2018 IEEE Applied Power Electronics Conference and Exposition (APEC), 2018The average-behavior circuit model of three-level flying capacitor boost converter (FCBC) is presented in this paper. The small-signal transfer functions of three-level FCBC are first obtained that are including two control signals as the input signals and including the output voltage and the capacitor voltage as the output signals.
Hung-Chi Chen +2 more
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Capacitor Voltage Balancing Control for a Modular Matrix Converter
Twenty-First Annual IEEE Applied Power Electronics Conference and Exposition, 2006. APEC '06., 2006This paper describes a simplified capacitor voltage balancing scheme for a modular matrix converter operating in two-level switching mode. The proposed scheme is based on the conventional space vector modulation technique. By using two additional space vectors having opposite direction, the proposed controller is able to regulate all nine capacitor ...
S. Angkititrakul, R.W. Erickson
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Capacitor Voltage Balancing Control Strategies for Hybrid Cascaded Multilevel Converters
2020 IEEE Power & Energy Society General Meeting (PESGM), 2020The hybrid cascaded multilevel converter (HCMC) high voltage direct current (HVDC) transmission system offers smaller foot-print and DC-side pole-to-pole fault blocking capability compared to the commonly used modular multilevel converter (MMC) based HVDC systems.
Jintao Han +3 more
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Capacitor voltage balancing control of multilevel DC-DC converter
2013 Brazilian Power Electronics Conference, 2013This paper presents an complete investigation of an active capacitor voltage balancing strategy for multilevel dc-dc converter. The proposed technique may be applied to various dc-dc converters, such as the well-known flying-capacitor converter. The voltage balancing analysis is carried out for a five level dc-dc converter, in which the small-signal ...
Levy F. Costa, Samir A. Mussa, Ivo Barbi
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Capacitor Voltage Balancing control for 3LNPC LLC Resonant Converter
2019 IEEE Applied Power Electronics Conference and Exposition (APEC), 2019This paper concentrates on the capacitor voltage balancing in three-level neutral-point clamped (3LNPC) LLC resonant converter. Considering that the voltage stress applied to the power switch may exceed the rated voltage when a capacitor voltage imbalance occurs, a new control strategy is proposed to solve this problem.
Yu Qi +6 more
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DC capacitor voltage balancing control of cascaded static synchronous compensator
IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society, 2014Based on active power voltage vector addition, a new simple and clear algorithm is presented in this article to solve the existed phenomenon of the imbalance problem of the DC capacitor voltage of cascaded static synchronous compensator. The strategy has clear physical meaning and simple algorithm and it's easy to implement.
Yao Gang +4 more
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