Title :
A new control method for permanent magnet synchronous machines with observer
Author :
Xu, Junfeng ; Wang, Fengyan ; Xie, Shaofeng ; Xu, Jianping ; Feng, Jianghua
Author_Institution :
Coll. of Electr. Eng., Southwest Jiaotong Univ., Sichuan, China
Abstract :
The controllability and observability of permanent magnet synchronous machines (PMSM) is analyzed by using mathematic model of PMSM. Based upon which, a full order state observer is established for stator flux of PMSM. This observer is employed to PMSM direct torque control (DTC) system to substitute traditional pure integrator stator flux observer. Simulation results show that the full order observer achieves satisfied estimation of stator flux, especially near zero speed, and offers great robustness to parameter variation.
Keywords :
controllability; machine control; observability; observers; permanent magnet machines; robust control; stators; synchronous machines; torque control; PMSM controllability; PMSM observability; direct torque control; mathematic model; permanent magnet synchronous machines; state observer; stator flux; Controllability; Magnetic analysis; Mathematical model; Mathematics; Observability; Observers; Permanent magnet machines; Robustness; Stators; Torque control;
Conference_Titel :
Power Electronics Specialists Conference, 2004. PESC 04. 2004 IEEE 35th Annual
Print_ISBN :
0-7803-8399-0
DOI :
10.1109/PESC.2004.1355628
