Abstract：In the permanent magnetic synchronous motor (PMSM) speed-regulation system,the conventional two-degree-of-freedom (2DOF) control system based on disturbance observer (DOB) has the problem that the step reference tracking performance and disturbance rejection property of the system are coupled,which complicates the parameter setting process of the controller.A novel 2DOF controller is proposed in this paper.This novel controller substitutes the DOB used in conventional controller with the extended state observer,which can estimate the velocity and the disturbance torque at the same time.By using the estimated velocity as the feedback signal and the estimated disturbance torque as the feed forward signal,the tracking performance and the disturbance rejection property are fully decoupled,thus leading to a simple parameter setting process of the controller.Extensive experiments are performed to verify the validity and practicality of the proposed algorithm.
左月飞,符慧,刘闯,胡烨,张涛. 永磁同步电机调速系统的一种新型二自由度控制器[J]. 电工技术学报, 2016, 31(17): 140-146.
Zuo Yuefei ,Fu Hui ,Liu Chuang ,Hu Ye ,Zhang Tao. A Novel Two-Degree-of-Freedom Controller for Permanent Magnetic Synchronous Motor Speed-Regulation System. Transactions of China Electrotechnical Society, 2016, 31(17): 140-146.
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2016, Vol. 31 
