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.
出处
《中国电机工程学报》
EI
CSCD
北大核心
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)~~
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
permanent-magnet synchronous machine（PMSM）
five-leg VSI
dual-motor drive
direct torque control
