Nonlinear Speed Control of PMSM
In the paper,a nonlinear adaptive speed controller for a permanent magnet synchronous motor(PMSM)based on a newly developed grey predict approach is presented. The exact input-output feedback linearisation control law is first introduced without any uncertainties in the system. However, in real applications, the parameter uncertainties such as the stator resistance and viscous constant and load torque disturbance have to be considered. In this case, the exact input-output feedback linearisation approach is not very e ective, because it is based on the exact cancellation of the nonlinearity.To compensate the uncertainties and the load torque disturbance,the input-output feedback linearisation approach is first used to compensate the nonlinearities in the nominal system. Then, a uncertainty Grey predictor is derived systematically, which adjust the input-output linearisation control scheme. Simulation results clearly show that the proposed adaptive scheme can track the speed reference, successfully and that the scheme is robust to the parameter uncertainties and load torque disturbance.
Liu Dongliang Yan weican
College of Electrical Engineering Zhejiang University Hangzhou, 310027 Wolong Holding Group CO.,LTD.Research and Development Shanyu, 312300
国际会议
青岛
英文
2006-07-21（万方平台首次上网日期，不代表论文的发表时间）