具有共模电压减小和电容电压平衡的五电平有源中点钳位型变换器SVPWM算法

doi:10.19595/j.cnki.1000-6753.tces.170552

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Abstract In order to solve the problems of common-mode voltage and capacitor voltage balance for five-level active neutral-point-clamped (ANPC) converter, a novel space vector pulse width modulation (SVPWM) algorithm based on gh coordinate is presented. The proposed SVPWM algorithm not only reduces the common-mode voltage, but also balances the capacitor voltages. First, the common-mode voltage is reduced by choosing the appropriate redundant switching states. After that, according to the floating-capacitor voltage deviations and output current directions for each phase, floating-capacitor voltages are balanced by selecting the appropriate switch combinations. Moreover, model predictive control (MPC) of neutral-point voltage is proposed. The optimal switching sequence is selected by using the receding optimization based on the cost function for all the five-segment switching sequences. Finally, the experimental results verify the validity of the proposed SVPWM algorithm.

Key words： Five-level active neutral-point-clamped floating-capacitor voltage balance neutral-point voltage balance common-mode voltage space vector pulse width modulation

Received: 05 May 2017 Published: 12 July 2018

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TM464

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	Li Junjie
	Jiang Jianguo
	Liu Yunlong
	Zhou Zhongzheng

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Li Junjie,Jiang Jianguo,Liu Yunlong等. A Space Vector Pulse Width Modulation with Common-Mode Voltage Reduction and Capacitor Voltage Balance Control for Five-Level Active Neutral-Point-Clamped Converter[J]. Transactions of China Electrotechnical Society, 2018, 33(13): 3109-3118.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.170552 OR https://dgjsxb.ces-transaction.com/EN/Y2018/V33/I13/3109

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