基于电流误差矢量的绕组分段永磁直线同步电机电流预测控制  

Current Error Vector Based Prediction Control of Currents in Segment Winding Permanent Magnet Linear Synchronous Motor

作　　者：洪俊杰[1] 李立毅[2] 

机构地区：[1]中山大学工学院,广东省广州市510006 [2]哈尔滨工业大学电气工程学院,黑龙江省哈尔滨市150001

出　　处：《中国电机工程学报》2011年第30期77-84,共8页Proceedings of the CSEE

基　　金：国家自然科学基金项目(50877012)~~

摘　　要：为了在不降低电机的推力平稳性的前提下,使直线电机具有大推力、高效率的特性,提出了绕组分段永磁直线同步电机。该电机的定子铁心连续,而初级绕组断开,推导了该电机的离散系统模型。通过电流误差矢量的定义与价值函数的选择,阐明了基于电流误差矢量的电流预测控制方法的原理。针对绕组分段结构的特点,将动子运动区域分为5个子区间,并介绍了不同区间中各段电机电流预测控制方法的实现。实验结果表明,系统电流控制的动态响应特性良好,且动子能够顺利经过共用区。To maintain the characteristics such as greater thrust,higher efficiency without reducing the thrust stability,this paper proposes a segment winding permanent magnet linear synchronous motor（SW-PMLSM）,whose iron core is continuous,whereas winding is divided.The discrete system model of the motor was derived.With the definition of the current error vector and selection of the value function,the theory of the current error vector based prediction control for the motor currents was explained clearly.According to the winding segment structure,the motion region of the mover was divided into five zones,in which the implementation of the current predictive control method was proposed.The experimental results show that the current control effect has good dynamic response and the mover passes across the winding boundary successfully.

关 键 词：绕组分段永磁直线同步电机 电流误差矢量 电流预测控制 推力平稳性 

分 类 号：TM359[电气工程—电机]