单逆变器驱动多台电机的矢量控制方法

Vector Control of Paralleled-Connected Multi-induction Motors Fed by a Single Inverter

在单电机矢量控制基础上,推导出一种适用于单逆变器驱动多台电机的通用控制方法。该算法考虑了电机的工作状态,基于平均转子磁链定向的矢量控制法,在新的同步坐标系上解耦,采用总的定子电流控制平均转子磁链中的平均磁链分量和平均转矩分量,从而实现单逆变器控制多台电机的目的。

Based on the vector control of an induction motor,a new method controlling paralleled-connected multi-motors with one inverter is designed in this paper.When motors are operating at different conditions,the praposed algorithm may calculate and decouple the average rotor fluxes on the new axes,generating,and then,the flux-component and the torque-component of the stator currents will be generated to control parallel-motors on the average.