电工技术学报  2019, Vol. 34 Issue (zk1): 30-38    DOI: 10.19595/j.cnki.1000-6753.tces.L80078
电机与电器 |
基于九开关变换器的对称六相永磁同步电机集成车载驱动系统研究
李永恒, 刘陵顺
海军航空大学控制工程系 烟台 264001
The Research of Integrated Vehicle Drive System of Symmetrical Six-Phase Permanent Magnet Synchronous Motor Based on Nine-Switch Converter
Li Yongheng, Liu Lingshun
Department of Control Engineering Naval Aeronautical University Yantai 264001 China
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摘要 在电动汽车集成车载驱动系统基础上,提出一种基于九开关变换器的三矢量空间矢量脉宽调制(SVPWM)算法。给出了九开关变换器27种开关状态及其在对称六相永磁同步电机电压矢量图中的位置。三矢量SVPWM算法将αβ 子空间分为六个扇区,选择距离扇区最近的三个电压矢量用以合成参考电压矢量。详细阐述了九开关变换器最佳开关序列选择方法。与传统四矢量SVPWM算法相比,三矢量SVPWM算法能够最大程度地提高直流母线电压利用率,降低开关管通断频率。通过仿真,对电机的起动过程进行了详细分析。搭建对称六相永磁同步电机驱动系统实验平台,通过对稳态情况下电机电流的分析,证明了所提算法的正确性。
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李永恒
刘陵顺
关键词 电动汽车对称六相永磁同步电机九开关变换器SVPWM算法    
Abstract:In this paper, three vectors space vector pulse width modulation (SVPWM) algorithm based on nine-switch converter is proposed on the basis of electric vehicle integrated vehicle drive system. Nine-switch converter 27 switching mode and their corresponding positions in symmetric six-phase permanent magnet synchronous motor (PMSM) voltage vector map are given. The algorithm divides αβ subspace into six sectors. Three voltage vectors closest to the sector are selected to synthesize the reference vector. The process how to correctly select the optimal switching sequences is explained in detail. Compared with four vectors SVPWM algorithm, three vectors SVPWM algorithm not only maximizes DC bus voltage utilization, but also reduces switch frequency. Through simulation, starting process of motor system is analyzed in detail. Experiment platform for a symmetrical six-phase PMSM drive system is constructed. Through analysis of motor current in steady state, the effectiveness of proposed method is verified.
Key wordsElectric vehicles    symmetrical six-phase permanent magnet synchronous motor    nine-switch converter    space vector pulse width modulation algorithm   
收稿日期: 2018-06-30      出版日期: 2019-07-29
PACS: TM351  
基金资助:光宝科技电力电子技术科研基金资助项目(PRC20151384)
通讯作者: 赵清林,男,1969年生,博士,教授,研究方向为高频功率变换及软开关技术。E-mail:powerzql@ysu.edu.cn   
作者简介: 刘陵顺,男,1968年生,教授,博士生导师,研究方向为电机控制与电磁兼容。E-mail:lingshunliu@163.com
引用本文:   
李永恒, 刘陵顺. 基于九开关变换器的对称六相永磁同步电机集成车载驱动系统研究[J]. 电工技术学报, 2019, 34(zk1): 30-38. Li Yongheng, Liu Lingshun. The Research of Integrated Vehicle Drive System of Symmetrical Six-Phase Permanent Magnet Synchronous Motor Based on Nine-Switch Converter. Transactions of China Electrotechnical Society, 2019, 34(zk1): 30-38.
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