摘要
针对永磁同步电机电流滑模控制过程中系统抖振剧烈,提出了一种新型的电流滑模控制方法。通过对电机转速和负载转矩进行观测,利用观测负载扰动误差变化对切换增益做适当调整,从而使切换增益能够随着观测误差的不断减小而减小,并最终收敛到零。仿真和实验结果表明,所设计的负载滑模观测方法能够在保证系统鲁棒性的同时,能够明显削弱系统抖振现象。
A new current sliding mode control method is proposed for the system chattering in the current sliding mode control of permanent magnet synchronous motor. Through the observation of motor speed and load torque,load and observation by adaptively adjust the switching gain disturbance error change,which can switch gain decreases with the observation error decreases, and eventually converges to zero.Simulation and experimental results show that the proposed method can significantly weaken the chattering of the system while ensuring the robustness of the system.
出处
《科技通报》
2018年第2期196-201,共6页
Bulletin of Science and Technology
关键词
永磁同步电机
滑模观测器
切换增益
抖振
permanent magnet synchronous motor(PMSM)
sliding mode observer
switching gain
chattering
