基于MRAS直线电机推力控制策略研究

MRAS Based Direct Thrust Control of PMSLM Without Speed Sensor

本文提出了一种于基于MRAS的永磁同步直线电机直接推力控制策略。将永磁同步直线电机的电流模型作为MRAS观测器的设计模型,电机的实际电流作为可调模型,完成对直线电机速度、磁链和推力的精确观测。仿真结果表明,该策略能较好的估计直线电机的推力及速度,具有良好的稳态辨识特性。

MRAS based direct thrust control strategy is proposed for PMSLM.The current model of permanent magnet synchronous linear motor is used as the design model of MRAS observer,and the actual current of the motor is used as the adjustable model to complete the accurate observation of linear motor speed,flux linkage and thrust.The simulation results show that the strategy can better estimate the thrust and speed of linear motor,and has good steady-state identification characteristics.