单相异步电动机双极性SPWM变频调速仿真研究  

A Simulation Study on the Bipolar SPWM Variable Frequency Speed Control for Single-phase Asynchronous Motors

作　　者：邵力耕[1] 武炎明 徐春晓[1] 

机构地区：[1]大连交通大学电气信息学院,辽宁大连116028

出　　处：《电气自动化》2015年第4期10-12,69,共4页Electrical Automation

基　　金：辽宁省教育厅项目(L2013180)

摘　　要：利用双极性SPWM正弦脉宽调制技术实现单相异步电动机变频调速。在MATLAB/Simlink软件中建立双极性SPWM控制器、主电路中的整流和逆变电路。从仿真结果中可以看出,在未加滤波器之前,单相异步电动机变频调速性能较差和逆变器输出电流畸变程度大。加滤波器后,滤除高次谐波,提高电动机调速性能和逆变器输出电流更接近正弦波。Variable frequency speed control of single-phase asynchronous motors is realized through bipolar SPWM. A bipolar SPWM controller and a rectification and inverter circuit of the main circuitry are established in the MATLAB/Simulink. As shown in the simulation results, the single-phase asynchronous motor has a poor variable frequency speed control and the inverter output current has serious distortion before the addition of the filter, and application of the filter removes higher harmonics, improves motor＇ s speed control, and makes inverter output current more similar to the sine wave.

关 键 词：单相电动机 SPWM 变频调速 滤波器 整流器 

分 类 号：TM464[电气工程—电器]