永磁同步电机分数阶建模与实验分析  

Fractional-Order Modeling and Experimental Analysis of Permanent Magnet Synchronous Motor

作　　者：余伟[1] 皮佑国[1] 

机构地区：[1]华南理工大学自主系统与网络控制教育部重点实验室∥自动化科学与工程学院,广东广州510640

出　　处：《华南理工大学学报（自然科学版）》2013年第8期55-60,共6页Journal of South China University of Technology(Natural Science Edition)

基　　金：广东省教育部产学研结合项目(2009B090300269)

摘　　要：基于实际电感和实际电容在本质上是分数阶的事实,对永磁同步电机建立分数阶模型.用伪随机信号作为外部激励信号进行辨识实验,利用采集到的实验数据和分数阶模型输出误差辨识算法,对分数阶模型进行参数估计.最后对永磁同步电机的分数阶和整数阶模型,采用同一PI控制器设计准则,通过实验验证了分数阶模型比整数阶模型能更精确地描述永磁同步电机的本质.Based on the fact that the actual inductance and capacity are essentially of fractional-order,this paper establishes a fractional-order model of the permanent magnet synchronous motor （PMSM）.Then,the pseudorandom binary sequence is taken as the external excitation signal of the PMSM to implement an identification experiment.Based on the experimental data,the fractional-order model is identified by using the output-error identification algorithm.Finally,according to the same criteria,two PI controllers are designed respectively for the identified fractional-order model and the traditional integer-order one.From the comparative experiment of the two PI controllers,it is found that in terms of accuracy,the proposed fractional-order model is superior to the traditional integerorder one in describing the PMSM.

关 键 词：永磁同步电机 分数阶 伪随机二进制序列 输出误差 辨识算法 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]