新型SVM异步电机控制的仿真研究

针对传统直接转矩控制系统建模方法复杂、SVPWM算法实现缓慢等问题,推导出了关于SVPWM的一种新型调制方法,该方法不需要传统SVPWM中复杂Clark坐标变换,也不需要三角函数以及电角度参与运算,直接利用三相相电压的大小判断矢量所在扇区并运用简单加减运算得到非零矢量导通时间。在Matlab/simulink环境下,对一台三相异步电机进行仿真,建模简单快速、实时性强,结果表明该算法是可行的和有效的。

Simulation Research on Control of New SVM Induction Motor

In order to solve problems such as complex modeling method of the traditional DTC system and slow space vector pulse width modulation（ SVPWM） algorithm,a new method of SVPWM is derived in this paper. The complex Clark coordinate transformation in traditional SVPWM,as well as the trigonometric function and electric angle calculation are not needed in this method,vector section is directly judged by magnitudes of phase voltages of the three-phase and the nonzero vector conduction time is obtained by using simple addition and subtraction. In Matlab / simulink circumstance,simple fast and real-time modeling of a three-phase induction motor is carried out based on the simulation,the results indicate feasibility and validity of the algorithm.