摘  要：基于多相电机和永磁同步电机的优点，多相永磁同步电机(PMSM)的研究受到越来越多学者的关注。为了解决永磁同步电机传统直接转矩控制中存在的转矩和磁链脉冲大的问题，该文以双Y移30°永磁同步电机为例，提出了基于空间电压调制（SVM）策略的直接转矩（DTC）控制。给出了系统的数学模型以及工作原理，分析了SVM-DTC的具体实现方法。在Matlab/simulink环境下，对电机的变载、变速运行进行了仿真分析,结果表明该方法能够可靠、有效的控制电机运行，且具有良好的静态和动态性能。
关键词：双Y移30°永磁同步电机；空间矢量调制；直接转矩控制；仿真

Abstract: Based on these advantages of the multiphase motor and permanent magnet synchronous Motor(PMSM), more and more scholars pay attention to the research of multi-phase PMSM. To minimize the ripples of the electromagnetic torque and flux linkage produced in the conventional direct torque control (DTC) system for PMSM, this paper took the double Y shift 30°PMSM as example, proposed a space vector modulation (SVM) strategy of DTC. The mathematical model and working principle were presented and the implement method of SVM-DTC was analyzed. In Matlab/simulink, the motor operating conditions of variable load and speed were analyzed. The results show that the method can control the motor reliably and effectively, and has good static and dynamic performance.
Key words: Double Y shift 30°PMSM; SVM; DTC; Simulation