Title :
The Design of Sensorless of PMSM Based on Active Control
Author :
Zhang, Niaona ; Wang, Yongqing ; Liu, Kewei
Author_Institution :
Changchun Univ. of Technol., Jilin, China
Abstract :
In order to cancel mechanical sensors in the speed controller system of PMSM, a method of rotor position detection speed/position observation based on active control is proposed. It composed active control strategy of observer according to the error between measured current and observed current, then the rotor´s speed/position can be calculated with back-EMF which is estimated. Simulation results show that the control algorithm proposed in this paper is simple, not only it can observe motor´s position and speed accurately, but also it is easy to realize, it has high steady state precision and dynamic performance.
Keywords :
observers; permanent magnet motors; position control; rotors; sensorless machine control; synchronous motors; velocity control; active control; backEMF; measured current; mechanical sensor; motor position; motor speed; observed current; rotor position detection; rotor speed; sensorless PMSM design; speed controller system; speed/position observation; steady state precision; Equations; Mathematical model; Observers; Rotors; Stator windings; Active Control Oobserver; PMSM; State Estimation;
Conference_Titel :
Intelligent Computation Technology and Automation (ICICTA), 2011 International Conference on
Conference_Location :
Shenzhen, Guangdong
Print_ISBN :
978-1-61284-289-9
DOI :
10.1109/ICICTA.2011.148
