异步电机直接转矩控制系统仿真实验  

Simulation experiment of direct torque control system of asynchronous motor

作　　者：周晓华[1] 吴国强 蓝会立[1] 王晨 林川[1] ZHOU Xiaohua;WU Guoqiang;LAN Huili;WANG Chen;LIN Chuan(School of Automation,Guangxi University of Science and Technology,Liuzhou 545616,China)

机构地区：[1]广西科技大学自动化学院,广西柳州545616

出　　处：《实验室科学》2022年第6期72-75,81,共5页Laboratory Science

基　　金：广西研究生教育创新计划项目-广西学位与研究生教改课题(项目编号:JGY2021177);广西高等教育本科教学改革工程项目(项目编号:2019JGB244;2020JGZ128);广西高校中青年教师科研基础能力提升项目(项目编号:2020KY08016)。

摘　　要：在Matlab/Simulink仿真平台建立了异步电机直接转矩控制系统的仿真模型,并采用两种方法实现了电机定子磁链扇区的准确判断。针对异步电机负载起动、突增负载转矩等情形开展了仿真实验教学,对比了两种定子磁链扇区判断方法的控制效果,分析了磁链滞环宽度对控制系统性能的影响。仿真实验加深了学生对异步电机直接转矩控制系统原理的理解,改善了课程的教学效果。Based on Matlab/Simulink simulation platform, the simulation models of direct torque control system of the asynchronous motor is established, and two methods are used to realize the accurate judgment of the motor stator flux sector. In view of the load starting and load torque sudden increasing, the simulation experiment teaching is carried out. The control effects of two stator flux sector judgment methods are compared, and the influence of flux hysteresis width on the performance of the control system is analyzed. The simulation experiment teaching deepens students’ understanding of the principle of asynchronous motor direct torque control system and improves the teaching effect of the course.

关 键 词：异步电机 直接转矩控制 扇区判断 仿真实验 

分 类 号：TM921[电气工程—电力电子与电力传动] G642.4[文化科学—高等教育学]