| 永磁同步电机直接转矩控制系统的改进 |
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| 引用本文： | 张昱,张兴. 永磁同步电机直接转矩控制系统的改进[J]. 合肥工业大学学报(自然科学版), 2007, 30(5): 546-548 |
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| 作者姓名： | 张昱 张兴 |
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| 作者单位： | 合肥工业大学,电气与自动化工程学院,安徽,合肥,230009 |
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| 摘 要： | 文章针对d-q坐标系下的永磁同步电机模型,研究了永磁同步电机直接转矩控制方案,同时还分析了零电压矢量在异步电机和永磁同步电机中的不同作用,构造了一种应用零电压矢量来减小转矩的新型电压矢量开关表;并通过MATLAB/Simulink仿真软件,对永磁同步电机直接转矩控制系统进行建模;仿真结果表明,正确的使用零电压矢量,可以有效降低转矩脉动,改善系统控制性能。
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| 关 键 词： | 永磁同步电机 直接转矩控制 MATLAB/Simulink建模 |
| 文章编号： | 1003-5060(2007)05-0546-04 |
| 修稿时间： | 2006-04-29 |
Improvement on the DTC of permanent-magnet synchronous motors |
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| ZHANG Yu,ZHANG Xing. Improvement on the DTC of permanent-magnet synchronous motors[J]. Journal of Hefei University of Technology(Natural Science), 2007, 30(5): 546-548 |
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| Authors: | ZHANG Yu ZHANG Xing |
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| Abstract: | This paper deals with the direct torque control of the permanent magnet synchronous motor(PMSM DTC) under the d-q coordinates.The different functions of the zero-voltage vector in the synchronous machine and the asynchronous machine are analyzed.A simple switch-select table for decreasing the torque by using the zero-voltage vector is established.The dynamic simulation model of the PMSM DTC system is based on MATLAB/Simulink,and the simulation results show that using the zero-voltage vector rationally can reduce the torque ripple and improve the system's performance markedly. |
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| Keywords: | permanent-magnet synchronous motor direct torque control(DTC) MATLAB/Simulink modeling |
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