三相四开关容错变换器调制模型预测控制策略

吕恒志; 张涛; 章凯旋; 何帅彪; 金楠

doi:10.3969/j.issn.2096-1553.2019.04.013

July 2019

Article Contents

LYU Hengzhi, ZHANG Tao, ZHANG Kaixuan, et al. Three-phase four-switch fault-tolerant converter modulation model predictive control strategy[J]. Journal of Light Industry, 2019, 34(4): 87-95. doi: 10.3969/j.issn.2096-1553.2019.04.013

Citation: LYU Hengzhi, ZHANG Tao, ZHANG Kaixuan, et al. Three-phase four-switch fault-tolerant converter modulation model predictive control strategy[J]. Journal of Light Industry, 2019, 34(4): 87-95. doi: 10.3969/j.issn.2096-1553.2019.04.013 shu

Three-phase four-switch fault-tolerant converter modulation model predictive control strategy

1. Mechanical and Electrical Engineering, Pingdingshan Industrial College of Technology, Pingdingshan 467000, China;
2. College of Electric and Information Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China

Received Date: 2018-10-24

Abstract

Aimed at the problem that the single-vector control current tracking accuracy of three-phase four-switch (TPFS) converter was not enough, which will lead to the total harmonic distortion (THD), a TPFS fault-tolerant converter modulation model predictive control strategy was proposed in αβ stationary coordinate system. This strategy established the current prediction model under a-phase fault in αβ stationary coordinate system based on the operating mechanism of TPFS fault-tolerant converter. The four voltage vectors of TPFS fault-tolerant converter were combined with each other,and the action time of each voltage vector was calculated by the modulation model prediction principle to reduce the calculation amount. Two voltage vectors were selected and used in each control period to reduce the current ripple. Simulation and experimental results showed that the feasibility and effectiveness of the proposed strategy.The tracking accuracy of the TPFS fault-tolerant converter was improved, the current harmonics were reduced, and the TPFS fault-tolerant converter was guaranteed to continue to operate.
- three-phase four-switch fault-tolerant converter,
- model predictive control,
- total harmonic distortion(THD)
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Three-phase four-switch fault-tolerant converter modulation model predictive control strategy

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