间接矩阵变换器-异步电机调速系统边界圆限定模型预测控制方法  

Boundary circle confined model predictive control method for induction motor drive system fed by indirect matrix converter

作　　者：梅杨[1] 魏铮 刘璟琳 MEI Yang;WEI Zheng;LIU Jingin(Inverter Technology Engineering Research Center,North China University of Technology,Beijing 100144,China)

机构地区：[1]北京市变频技术工程技术研究中心,北方工业大学,北京100144

出　　处：《电工电能新技术》2023年第8期1-9,共9页Advanced Technology of Electrical Engineering and Energy

基　　金：北京市自然科学基金项目(3222051、JL23001)。

摘　　要：本文提出了一种适用于间接矩阵变换器-异步电机调速系统的边界圆限定模型预测控制方法。该方法基于图形边界限定模型预测控制思想,综合考虑网侧电流和电机定子电流需求,通过构造圆形边界作为限定,以电流误差保持在边界圆内时间最长为原则,预测出间接矩阵变换器的开关状态作为控制信号,从而均衡优化网侧与电机定子电流性能。仿真和实验结果表明,采用边界圆限定模型预测控制方法,间接矩阵变换器输入输出电流均为正弦,网侧功率因数接近于1,电机具有良好的动静态性能。与传统模型预测方法相比,采用本文提出的方法,在各种工况下网侧电流与电机定子电流THD均下降,实验结果表明网侧电流的THD降低了19.6%,电机定子电流的THD降低了18.5%。This paper presents a boundary circle confined model predictive control method for indirect matrix con-verter-induction motor speed control system.Based on the graphical boundary restriction model,this method pre-dicts the switch state of the indirect matrix converter as the control signal,taking the grid side current and the motor stator current requirements into account.By constructing a circular boundary as the restriction and keeping the cur-rent error within the boundary circle as the guideline,it balances and optimizes the gird side and motor stator cur-rent performance.The simulation and experimental results show that the input and output current of the indirect ma-trix converter are sinusoidal,the power factor on the grid side is close to 1,and the motor has good dynamic and static performance by using the boundary circle confined model predictive control method.Compared with the tradi-tional model prediction method,the THD of the gird side current and the stator current of the motor decreases by 19.6%and 18.5%under all working conditions.

关 键 词：间接矩阵变换器 模型预测控制 异步电机 边界圆 

分 类 号：TM34[电气工程—电机]