感应电动机直接转矩控制技术的发展

Development of Direct Torque Control Methods for Induction Motors

本文介绍了我国近年来直接转矩控制(DTC)技术的发展,针对DTC系统低速运行时转矩脉动大、开关频率不稳定等缺点,涌现出大量的解决方法。在这些方法中概念繁杂,控制方法不尽相同,本文重点对提出的众多方法进行分析、归纳,并对目前研究较多的智能控制进行概述。因此,对此项工作的发展起到推动作用。

This paper introduced the direct torque control （DTC） methods in recent years. As the DTC systems present large electromagnetic torque ripple at the low speed, own a variable switching frequency of the power devices and other shortcomings, a variety of methods came into view. These methods are different in concept, but similar in control. This paper focused on analyzing and classifying the proposed methods. At last, a review of the hot intelligent control was made. Therefore, this work plays an active role in promoting the development this technology.