Coordinated Optimization of Capacitor Voltage Ripple and Current Stress Minimization for Modular Multilevel Converter

Ang Li; Lei Lin; Chen Xu; Shirong Yang

doi:10.1109/PEAC.2018.8590413

Coordinated Optimization of Capacitor Voltage Ripple and Current Stress Minimization for Modular Multilevel Converter

Ang Li, Lei Lin, Chen Xu, Shirong Yang

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

5 Citations (Scopus)

Abstract

For an optimal performance of a modular multilevel converter (MMC), a tradeoff between multiple objectives can be complex. The injection of zero sequence voltage and circulating current can enlarge modulation index and to diminish the submodule capacitor voltage fluctuation. In this paper, a multi-objective genetic optimization algorithm is proposed to improve the performance of MMC in minimizing both the capacitor voltage ripple and current stress. The amplitude and phases of the circulating current and zero sequence voltage are designed in optimal coordination. Simulation in MATLAB/Simulink is implemented to validate the effectiveness and feasibility of the proposed method.

Original language	English
Title of host publication	2018 IEEE International Power Electronics and Application Conference and Exposition (PEAC)
Publisher	Institute of Electrical and Electronics Engineers
Number of pages	6
ISBN (Electronic)	978-1-5386-6054-6
DOIs	https://doi.org/10.1109/PEAC.2018.8590413
Publication status	Published - 27 Dec 2018
Externally published	Yes

Keywords

Modular multilevel converters
circulating current injection
optimization
zero sequence voltage injection

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10.1109/PEAC.2018.8590413

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abstract = "For an optimal performance of a modular multilevel converter (MMC), a tradeoff between multiple objectives can be complex. The injection of zero sequence voltage and circulating current can enlarge modulation index and to diminish the submodule capacitor voltage fluctuation. In this paper, a multi-objective genetic optimization algorithm is proposed to improve the performance of MMC in minimizing both the capacitor voltage ripple and current stress. The amplitude and phases of the circulating current and zero sequence voltage are designed in optimal coordination. Simulation in MATLAB/Simulink is implemented to validate the effectiveness and feasibility of the proposed method.",

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Coordinated Optimization of Capacitor Voltage Ripple and Current Stress Minimization for Modular Multilevel Converter. / Li, Ang; Lin, Lei; Xu, Chen et al.
2018 IEEE International Power Electronics and Application Conference and Exposition (PEAC). Institute of Electrical and Electronics Engineers, 2018. 8590413.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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AU - Li, Ang

AU - Lin, Lei

AU - Xu, Chen

AU - Yang, Shirong

PY - 2018/12/27

Y1 - 2018/12/27

N2 - For an optimal performance of a modular multilevel converter (MMC), a tradeoff between multiple objectives can be complex. The injection of zero sequence voltage and circulating current can enlarge modulation index and to diminish the submodule capacitor voltage fluctuation. In this paper, a multi-objective genetic optimization algorithm is proposed to improve the performance of MMC in minimizing both the capacitor voltage ripple and current stress. The amplitude and phases of the circulating current and zero sequence voltage are designed in optimal coordination. Simulation in MATLAB/Simulink is implemented to validate the effectiveness and feasibility of the proposed method.

AB - For an optimal performance of a modular multilevel converter (MMC), a tradeoff between multiple objectives can be complex. The injection of zero sequence voltage and circulating current can enlarge modulation index and to diminish the submodule capacitor voltage fluctuation. In this paper, a multi-objective genetic optimization algorithm is proposed to improve the performance of MMC in minimizing both the capacitor voltage ripple and current stress. The amplitude and phases of the circulating current and zero sequence voltage are designed in optimal coordination. Simulation in MATLAB/Simulink is implemented to validate the effectiveness and feasibility of the proposed method.

KW - Modular multilevel converters

KW - circulating current injection

KW - optimization

KW - zero sequence voltage injection

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U2 - 10.1109/PEAC.2018.8590413

DO - 10.1109/PEAC.2018.8590413

M3 - Conference contribution

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PB - Institute of Electrical and Electronics Engineers

ER -

Coordinated Optimization of Capacitor Voltage Ripple and Current Stress Minimization for Modular Multilevel Converter

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Keywords

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