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异步电动机直接矢量控制的Matlab实现

发表时间:2010-05-31  浏览量:2006  下载量:920
全部作者: 李君,秦彬,王忠庆
作者单位: 中北大学信息与通信工程学院
摘 要: 以矢量控制的思想为基础,分析按转子磁链定向二相旋转坐标系上转子磁链电流模型,并提出带转矩内环的转速、磁链双闭环调速的方法,对一定转速下的系统在Matlab/Simulink环境下进行仿真,得出了较为理想的仿真结果。另外,针对磁链观测器采用的按转子磁链定向的转子磁链电流模型,进行不同时段的Matlab/Simulink仿真,并在特定的时段增加负载。得出中高速下异步电动机的旋转特性。仿真实验表明:该系统有良好的静、动态性能及控制性能。实际应用中可以很方便地根据用途调整所用磁链模型,组建不同的系统,也可以进一步根据需要,完善启动环节,增强电机的低速性能,有很强的实用价值。
关 键 词: 自动控制技术;异步电动机直接矢量控制系统的仿真;Matlab/Simulink仿真;矢量控制;双闭环控制
Title: Direct vector control of asynchronous motor based on Matlab
Author: LI Jun, QIN Bin, WANG Zhongqing
Organization: School of Information and Communication Engineering, North University of China
Abstract: Based on vector control, this paper analyzed the magnetic linkage current model of rotor based on two�phase rotary coordinate system, proposed the timing method of two�closed loop and emulated the system based on Matlab/Simulink and got a real simulation result. According to the flux observer it used the current model and gave separate Matlab/Simulink simulation tests which were based on different time scales and added loads on certain time scale. It obtained the rotate characteristics of asynchronous motor at high and middle speed. The result of experiment indicated that the system is good at static and dynamic properties. The model of flux can be formed conveniently with different purposes and construct new system. Asynchronous motor also can be perfected at the beginning and be strengthened to have a great practical value.
Key words: automatic control technology; the simulation of direct vector control of asynchronous motor; Matlab/Simulink simulation; vector control; two�closed loop control
发表期数: 2010年5月第10期
引用格式: 李君,秦彬,王忠庆. 异步电动机直接矢量控制的Matlab实现[J]. 中国科技论文在线精品论文,2010,3(10):1079-1085.
 
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