基于自抗扰控制技术的多电机同步控制

对采用偏差耦合控制策略的永磁同步电机多电机同步控制进行仿真研究。引入自抗扰控制技术实现电机控制,各同步控制器的输出补偿负载转矩。考虑到电机实际运行中参数随温度发生变化,为进一步提高转速同步控制性能,采用模型参考自适应算法对电机参数进行在线辨识,结果用于在线修正自抗扰控制器结构参数。从理论上分析了扰动引起的误差收敛情况,仿真结果验证了整体方案的可行性,可以实现4台永磁同步电机的转速同步控制。

Multi-motor Synchronous Control Based on Active Disturbance Rejection Control Technique

Based on a simulation of multi-motor synchronous control over permanent magnet synchronous motors adopting deviation coupling control, this paper uses active disturbance rejection technique to achive motor control, whereby the outputs of synchronous controllers compensate for load torque.Considering the fact that motor parameters change with temperature during its operation, in order to improve the speed synchronization control performance, we use the model reference adaptive algorithm to achieve online identification of motor parameters, and apply the result for online correction of the structure parameters of the adaptive disturbance rejection controller.This paper analyzes theoretically error convergence caused by disturbance.Simulation results verify the feasibility of the total scheme.Using this control strategy, one can achieve speed synchronization control over four permanent magnet synchronous motors.