一种新型的控制方法——矢量转矩控制

A Novel Approach to Control of Induction Motor Drives:Vector Torque Control

为了改善直接转矩控制(DTC)的控制特性,本文在分析电压矢量对磁链和转矩的控制效果的基础上,结合SVPWM提出了一种新的控制方法——矢量转矩控制(VTC),明确了电机转矩、磁链和电压矢量之间函数关系,丰富了控制手段,提高了控制特性,适宜工程实现。

To improve DTC system, an improved method of vector torque control, based on analysis of effects between vectors and variations of flux and torque, is proposed which utilizes an improved flux model at low speed. Since it sets up a function, it is possible for researchers to use more kinds of strategies to control flux and magnetic torque respectively in DTC system.