牵引直线感应电机推力优化控制的研究  

Torque-optimized Control Strategy for Linear Induction Motor Drive

作　　者：顾赟[1] 杨中平[1] 

机构地区：[1]北京交通大学电气工程学院,北京100041

出　　处：《铁道学报》2011年第4期46-52,共7页Journal of the China Railway Society

基　　金：台达电力电子科技发展基金计划(ERE02006015)

摘　　要：本文利用涡流损耗分析的方法,推导了考虑纵向边端效应的直线感应电机动态数学模型。通过对直线电机控制特点的分析,设计了LIM矢量控制器。在此基础上,提出了一种以推力最大为目标的牵引直线感应电机推力优化控制方法。Matlab/Simulink仿真结果与直线电机牵引传动实验平台的实验结果表明,采用优化控制后直线电机在输入一定时能够提高输出推力,输入功率越小推力提高越明显,同时系统具有良好的调速性能,验证了本方案在牵引直线电机控制上的可行性。The dynamic LIM mathematical model inclusive of the longitudinal end-effect is derived by analysis of eddy current losses.The field orientation control scheme is developed through further analysis of the difference of linear motor and rotary motor control.On this basis,the linear induction motor traction thrust optimization control method is derived with the objective to acquire the maximum thrust.The Matlab/Simulink simulation results and experimental results of the linear motor traction and drive test platform show as follows： After applying optimization control,the thrust output of the linear motor is raised corresponding to a certain input;the smaller the input power,the more obvious the thrust output lifting;and the system demonstrates good speed control performance.These results verify the feasibility of the proposed scheme in linear traction motor control.

关 键 词：直线电机轨道交通 直线感应电机 推力优化 矢量控制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]