基于定子磁链优化的异步电机直接转矩控制技术

Optimization of the Stator's Flux Linkage in the Direct Torque Control of IM

本文提出了一种针对定子磁链进行优化的直接转矩控制方案,通过对定子磁链的幅值进行优化控制,一方面可以提高电机的工作效率,另一方面也使转矩的脉动得到了减小,而控制系统的简单结构并没有得到改变。

In this paper, one new direct torque control （DTC） system of induction motor （IM） is analyzed through the optimization of the magnitude of the stator＇ s flux linkage. In this new scheme, the efficiency of the IM can be improved. At the same time, the electromagnetic torque ripple of the IM can be decreased while the simple control structure of the classical DTC is preserved.