基于扩张PCHD 模型的永磁同步电机无源控制

针对常规无源控制器在受到外部常值干扰和输入常值干扰的情况下系统会出现静差的问题, 设计加入积分反馈来消除上述干扰所引起的静差. 建立永磁同步电机受扰的端口受控耗散哈密顿系统模型(PCHD), 采用互联和阻尼分配无源控制方法, 同时加入积分比例动态反馈, 设计了永磁同步电机的速度控制器, 以保证闭环扩张系统依然具有PCHD 模型形式, 使系统稳定于期望平衡点. 最后通过仿真结果表明了所提出的控制策略的有效性.

Passivity-based control of permanent-magnet synchronous motor based on extended PCHD

To overcome the problem of steady-state error when the conventional passivity control is applied to the system with constant exteral disturbances and constant input disturbance, the integral feedback is designed to eliminate steady-state error due to the disturbance. The Port-controlled Hamiltonian system with dissipation(PCHD) model of permanent-magnet synchronous motor(PMSM) with disturbance is established. The method of interconnection and damping assignment passivity-based control(IDA-PBC) is used, the integral and proportion action is added, and a speed regulation control is designed for PMSM, so that the closed extended system still preserves the PCHD form, while the system outputs can stable at the expectations equilibrium point. Finally, simulation results show the effectiveness of the proposed method.