Title :
The fuzzy PID speed control of PMSM based on equivalent input disturbance estimator
Author :
Chen Qi ; Wang ShiHu ; Wang LinGao
Author_Institution :
Fac. of Electron. & Electr. Eng., Huaiyin Inst. of Technol., Huai´an, China
Abstract :
This paper presents an equivalent input disturbance estimator to suppress the influence of the disturbance parameter of Permanent Magnet Synchronous Motors or load. This estimator is designed on the basis that the real unknown disturbance can be equal to the input disturbance of plant. Meanwhile, an approach based on EKF is proposed to estimate the speed and the position of the PMSM without sensor system. Moreover, a fuzzy PID controller is designed to compensate the infection of input equivalent disturbance. The simulation results from a PMSM system with equivalent input disturbance estimator and EKF estimator demonstrate that if the speed is given or changed, the system has good dynamic performance, and the performance of PMSM can be improved validly.
Keywords :
Kalman filters; angular velocity control; control system synthesis; fuzzy control; machine control; nonlinear filters; permanent magnet motors; synchronous motors; three-term control; EKF estimator; PMSM; disturbance parameter; equivalent input disturbance estimator; estimator design; fuzzy PID controller design; fuzzy PID speed control; permanent magnet synchronous motors; position estimation; speed estimation; Covariance matrix; Equations; Mathematical model; Niobium; Noise; Permanent magnet motors; Symmetric matrices; Direct Feedback Linearization; Equivalent Input Disturbance; Extended Kalman Filter; Fuzzy PID; PMSM;
Conference_Titel :
Control and Decision Conference (CCDC), 2012 24th Chinese
Conference_Location :
Taiyuan
Print_ISBN :
978-1-4577-2073-4
DOI :
10.1109/CCDC.2012.6244426