基于反电势补偿的永磁直线同步电机推力控制  

Research on Thrust Control of PMLSM Based on Back EMF Compensation

作　　者：王爱[1] 石培进 

机构地区：[1]包头职业技术学院,包头014030 [2]包头第一热电厂,包头014010

出　　处：《微特电机》2015年第9期70-73,共4页Small & Special Electrical Machines

摘　　要：永磁同步电机的推力控制作为电机速度以及位置控制的基础,为了有效提高PMLSM控制系统的响应速度,需要保证作为内环的推力控制性能。由于PMLSM的结构参数拥有随机性变化的特点,为此提出了一种对反电势进行有效补偿的推力控制方法。对电机控制模型采用解耦控制模型,将反电势控制的影响引入到解耦控制模型中。仿真实验结果表明:在引入反电势补偿后线圈电流波动明显减小,提高了系统对非线性参数变化的鲁棒适应性。The control of motor thrust is the inner ring in entire control loop, and is the foundation of PMLSM speed and position control. In order to improve system rapid response and high precision control performance of PMLSM, you need to ensure the thrust control performance of inner ring. Since the nonlinear characteristic of structural parameters in PMLSM, a thrust control method for effective compensation of back EMF was proposed. Using decoupling control model in the motor control model, the effects of EMF control were led into the decoupling control model. The simulation results show that coil current fluctuations reduce significantly after introducing of the back EMF compensation, the robust adaptability of system was improved for nonlinear parameter variation.

关 键 词：永磁直线同步电动机 电机推力 反电势补偿 解耦控制 参数变化 

分 类 号：TM351[电气工程—电机]