高速磁悬浮直线感应电机高精度推力控制  

High-precision Thrust Control of High-speed Maglev Linear Induction Motor

作　　者：姜岐广 曲诗健 姜涛 夏野 JIANG Qiguang;QU Shijian;JIANG Tao;XIA Ye(CRRC Dalian R & D Co. , Ltd. , Dalian Liaoning 116022, China)

机构地区：[1]中车大连电力牵引研发中心有限公司

出　　处：《微电机》2019年第10期92-97,共6页Micromotors

摘　　要：本文在分析了直线感应电机动态的纵向边端效应的基础上,建立了考虑边端效应对励磁电感以及涡流损耗影响的数学模型,进而提出了考虑推力补偿的指令值计算以及电流控制器设计,以增强推力精度以及系统的动态响应性能。此外,运用了混合 PWM调制方式,其中,提出了基于锁相环的同步调制方式,减少了高速时的低频谐波,降低了推力脉动。最后,在 FPGA芯片中,搭建了考虑边端效应的直线感应电机的数学模型,建立了用于硬件在环仿真的半实物仿真平台。对所提出的控制算法和调制算法进行了实时仿真验证,结果表明所提出的控制系统具有良好的控制性能和鲁棒性。Based on the analysis of the dynamic longitudinal end effect of linear induction motor, a mathematical model considering the effect of edge effect on excitation inductance and eddy current loss was established. Then the calculation of command value considering thrust compensation and the design of current controller were proposed in order to enhance thrust accuracy and dynamic response of the system. Besides, a hybrid PWM modulation method was applied. Among them, a synchronous modulation method based on phase-locked loop was proposed, which reduced low-frequency harmonics and thrust ripples at high speed. Finally, the mathematical model of the linear induction motor considering the edge effect was implemented in the FPGA chip, and the real-time simulation platform for hardware-in-the-loop simulation was established. The proposed control algorithm and modulation algorithm were verified by real-time simulation. The results show that the proposed control system has good control performance and robustness.

关 键 词：直线感应电机 推力补偿 同步调制 硬件在环仿真 

分 类 号：TM346[电气工程—电机] TM359.4