摘要
与传统的交流异步电机整流控制方式相比,采用三相电压型PWM整流器进行前级AC/DC转换具备低谐波、高功率因素运行以及输出电压稳定的特点。文章主要通过对PWM整流器基本原理的介绍,分析了PWM整流器在改善电机功率因素中的原理。考虑到PWM整流的效果,从低频和高频的角度阐述了PWM整流器的控制原理,并对PWM整流器的电机控制策略进行了介绍。
Compared with traditional AC induction motor control mode rectifier,compared with three-phase PWM rectifier voltage level before the AC/DC converter with low harmonic,high power factor operation and output voltage characteristics,this paper through the PWM rectifier introduction to the basic principles of analysis of the PWM rectifier in the motor power factor improvement in the theory.Taking into account the effect of PWM rectifier,the article from the perspective of low frequency and high frequency PWM rectifier described control principle and control strategy of PWM rectifier of the motor was introduced.
出处
《廊坊师范学院学报（自然科学版）》
2010年第6期60-63,共4页
Journal of Langfang Normal University(Natural Science Edition)
关键词
整流器
电机控制
低频控制
高频控制
rectifier
motor control
frequency control
frequency control
