五相逆变器双电机驱动系统直接转矩控制  

Direct Torque Control for Five-leg VSI Dual-motor Drive Systems

作　　者：王伟[1] 张景皓[1] 程明[1] 史乐乐[1] 

机构地区：[1]东南大学江苏省智能电网技术与装备重点实验室,江苏省南京市210096

出　　处：《中国电机工程学报》2017年第14期4192-4200,共9页Proceedings of the CSEE

基　　金：国家重点基础研究发展计划项目(973项目)(2013CB035603);国家自然科学基金项目(51607038);江苏省自然科学基金(BK20160673)~~

摘　　要：该文针对五相逆变器双电机驱动系统提出了一种直接转矩控制方法。首先通过传统的直接转矩控制得到两台永磁同步电机的6个相开关状态,其中4个相开关状态直接施加到4个独立桥臂,然后通过权重函数确定公共桥臂的开关状态。该文还分析了电机性能的畸变情况。实验结果验证了五相逆变器双电机驱动系统直接转矩控制的可行性及有效性。A direct torque control （DTC） was proposed for five-leg voltage-source-inverter （VSI） dual-motor drive systems, in which two permanent-magnet synchronous machines （PMSMs） were controlled by one five-leg VSI. All phase-switching-states were directly determined by the standard three-phase DTC, among which four phase-switching-states could be directly treated as four corresponding leg-switching-states. Then, the switching state of the common leg was determined by comparing two weighting functions. Additionally, the performance distortion of the studied drive system caused by the five-leg VSI was theoretically analyzed. The effectiveness of the proposed DTC is verified by experimental results.

关 键 词：永磁同步电机 五相逆变器 双电机驱动系统 直接转矩控制 

分 类 号：TM614[电气工程—电力系统及自动化]