一种基于SVM-DTC新型空调用电动机控制系统仿真研究  

A New Simulation Model of PMSM Control System Based on SVM-DTC

作　　者：张金利[1] 赵慧瑜 

机构地区：[1]武警工程学院,西安710086 [2]西安科搪化工设备有限责任公司,西安710038

出　　处：《微电机》2011年第4期86-90,共5页Micromotors

摘　　要：在空调用永磁同步电动机直接转矩控制方式中,存在转矩和定子磁链脉动大的现象,空调压缩机工作在低频(小于50 Hz)时电机转矩和磁链的脉动尤为明显,针对此问题,利用Matlab/Simulink提出并设计出了一种基于SVM-DTC的空调用永磁同步电机控制系统的新仿真模型,给出了各子模块的具体设计方法,模型设计中提出了一种产生三角波脉冲的新方法。由仿真结果看出该系统响应快速、稳定,能够克服空调压缩机低频工作时电机转矩和磁链波动大的现象。该控制系统的设计研究为实际空调用电机控制系统的设计提供了新的思路。In the direct torque control system of permanent magnet synchronous motor of air conditioning,there is torque and stator flux fluctuation phenomenon.The phenomenon is particularly when the air conditioning compressor works in the low frequency（less than 50Hz）.For this problem,a new kind of modeling and simulation of PMSM control system based on SVM-DTC was designed in the Matlab/ Simulink.The concrete design model of each sub-mold was given in the modeling.A novel method of ＂integral-slope ＂ for producing the triangle pulse has been proposed.The simulation results show that the whole system can respond quickly and run stablely.It can overcome motor torque and flux fluctuation phenomena when air-conditioning compressor works on low frequency.It provides a new way of thinking on the actual design on air-conditioned motor control system.

关 键 词：空调 永磁同步电机 SVM-DTC MATLAB 仿真 

分 类 号：TM341[电气工程—电机] TM351