| 非线性模型的开关磁阻电动机转矩脉动抑制 |
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| 引用本文： | 汤小君,易灵芝,朱建林,彭寒梅.非线性模型的开关磁阻电动机转矩脉动抑制[J].电机与控制学报,2007,11(2):120-124. |
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| 作者姓名： | 汤小君 易灵芝 朱建林 彭寒梅 |
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| 作者单位： | 湘潭大学,信息工程学院,湖南,湘潭,411105;湘潭大学,信息工程学院,湖南,湘潭,411105;湘潭大学,信息工程学院,湖南,湘潭,411105;湘潭大学,信息工程学院,湖南,湘潭,411105 |
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| 基金项目： | 湖南省社会科学基金
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湘潭市科技局项目 |
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| 摘 要： | 针对开关磁阻电动机SRM(Switched Reluctance Motor)转矩脉动大的问题,基于SRM的磁化特性,分析了SRM的非线性模型.采用Matlab/Simulink仿真软件,对SRM、功率变换器及其控制系统建立了动态仿真模型,并用模糊控制器对SRM的关断角进行实时补偿,实现SRM关断角自动调节,达到减小转矩脉动的目的.仿真实验中,转矩脉动系数从补偿前的0.673 0降低到补偿后的0.257 4,证明了该方法的可行性和有效性,为实际SRM控制系统的设计和调试提供了有效的手段和工具.
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| 关 键 词： | 开关磁阻电动机 非线性模型 转矩脉动 关断角补偿 模糊控制 |
| 文章编号： | 1007-449（2007）02-0120-05 |
| 收稿时间： | 2006-09-11 |
| 修稿时间： | 2006-12-25 |
Torque ripple reduction in switched reluctance motor based on the nonlinear model |
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| TANG Xiao-jun,YI Ling-zhi,ZHU Jian-lin,PENG Han-mei.Torque ripple reduction in switched reluctance motor based on the nonlinear model[J].Electric Machines and Control,2007,11(2):120-124. |
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| Authors: | TANG Xiao-jun YI Ling-zhi ZHU Jian-lin PENG Han-mei |
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| Abstract: | Aiming at the problem of higher torque ripple of switched reluctance motor,the nonlinear dynamic model for a switched reluctance motor(SRM) based on magnetic characteristic is analysed.The model of SRM drive system which includes the motor,the converter and the associated control system is developed in Matlab/Simulink environment.In order to minimize torque ripple in a SRM,a fuzzy-logic-based turn-off angle compensator for torque ripple reduction is proposed,and turn-off angle is changed timely to reduce torque ripple.During the course of simulation,the torque ripple coefficient is depressed from 0.673 0 without compensation to 0.257 4 with compensation,the feasibility and validity are testified by simulation results.This simulation offers a valid tool for designing and debugging actual SRM control system. |
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| Keywords: | switched reluctance motor nonlinear dynamic model torque ripple turn-off angle compensation fuzzy control |
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