基于转子位置自检测的电动汽车用电机直接转矩控制的研究  

Direct Torque Control of PMSM for Electric Vehicles Based on Rotor Position Self-sensing Approach

作　　者：王宇成[1,2] 赵德安[1] 

机构地区：[1]江苏大学电气工程学院,江苏镇江212013 [2]江苏省电力公司镇江供电公司,江苏镇江212000

出　　处：《微电机》2015年第8期45-50,共6页Micromotors

摘　　要：为了满足电动汽车对永磁同步电机高性能驱动的要求,本文研究了一种基于转子位置自检测的电动汽车用永磁同步电机直接转矩控制方法。该控制算法不但具有转矩和磁链脉动低、开关频率固定以及动态响应快等优点,同时可有效解决位置传感器带来的问题,并且提高了低速时转子位置估算精度。在建立基于转子自检测的永磁同步电机直接转矩控制调速系统的基础上,进行了仿真和实验验证。To meet the high performance requirement for electric vehicles （EVs） drive system, direct torque control （DTC） of PMSM for EVs based on a rotor position self-sensing approach was investigated in this paper. This algorithm has the merits of low torque and flux linkage ripple, fixed switching frequency, and rapid dynamic response. Furthermore, the problem brought from position sensor was solved, and the estimated performance in low speed was improved. Then the PMSM DTC system based on the rotor position self-sensing approach was set up, and provided the simulated and experimental verification.

关 键 词：电动汽车 永磁同步电机 直接转矩控制 转子位置自检测 

分 类 号：TM351[电气工程—电机]