永磁同步电机的相关辨识法自整定速度控制

发布时间：2018-03-06 20:30

本文选题：永磁同步电机　切入点：相关辨识法　出处：《中国电机工程学报》2014年30期 　论文类型：期刊论文

【摘要】：永磁同步电机(permanent magnet synchronous motor,PMSM)驱动在各类伺服系统中得到了广泛应用,对不同的电机和负载,通常其驱动器参数调整要一对一地手动完成,费时费力,且整定结果不够精确。该文提出了一种基于相关辨识的PMSM速度环自整定方法,针对速度环被控对象存在的积分环节导致的不能直接辨识的问题,引入角加速度观测器,通过对电流给定量施加伪随机序列(M序列),采集电流给定量与角加速度响应,并计算其互相关函数,辨识出电流至角加速度的脉冲响应函数序列。根据辨识结果、速度环期望频率特性及电流至角加速度传递函数形式,完成了速度调节器控制参数的整定。最后,在基于DSP的实验平台上,对这种相关辨识速度环整定方法进行了实验研究,证明了该方法的有效性和工程实用性。
[Abstract]:Permanent magnet synchronous motor (PMSM) drive is widely used in various servo systems. For different motors and loads, the parameters of the permanent magnet synchronous motor (PMSM) drive are usually manually adjusted one-to-one, time-consuming and laborious. In this paper, a self-tuning method of PMSM speed loop based on correlation identification is proposed. The angular acceleration observer is introduced to solve the problem that the integration of the object controlled by the speed loop can not be directly identified. By applying the pseudorandom sequence M sequence to the quantification of the current, collecting the response of the current to the angular acceleration and calculating the cross-correlation function, the pulse response function sequence from the current to the angular acceleration is identified. The desired frequency characteristics of the speed loop and the form of the transfer function from current to angular acceleration are used to set the control parameters of the speed regulator. Finally, on the experimental platform based on DSP, the related identification speed loop setting method is studied experimentally. It is proved that the method is effective and practical in engineering.
【作者单位】：西北机电工程研究所;
【分类号】：TM341

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