Title :
Flux-weakening control of permanent magnet synchronous motor with direct torque control consideration variation of parameters
Author :
Xu, Junfeng ; Wang, Fengyan ; Feng, Jianghua ; Xu, Jianping
Author_Institution :
Coll. of Electr. Eng., Southwest Jiaotong Univ., Sichuan, China
Abstract :
Flux-weakening control of interior permanent magnet synchronous motor (PMSM) is elaborated by presentation of current limit trajectory, speed limit trajectory and load angel limit trajectory. Flux-weakening control extends the timing range of the motor. For PMSM, flux-weakening is realized by armature reaction, which is different from induction motor by reducing the flux directly. In flux-weakening range, armature reaction will seriously affect the parameters such as rotor flux, direct axis inductance and quadrature axis inductance. The control trajectories mentioned above and performance of flux-weakening control with and without considering armature reaction are compared realized by MATLAB/SIMULINK. The rationality of theory analysis has been proved by simulation results.
Keywords :
machine control; magnetic flux; permanent magnet motors; power engineering computing; synchronous motors; torque control; MATLAB; SIMULINK; armature reaction; current limit trajectory; direct axis inductance; direct torque control; flux-weakening control; load angel limit trajectory; permanent magnet synchronous motor; quadrature axis inductance; rotor flux; speed limit trajectory; Analytical models; Armature; Inductance; Induction motors; MATLAB; Permanent magnet motors; Rotors; Synchronous motors; Timing; Torque control;
Conference_Titel :
Industrial Electronics Society, 2004. IECON 2004. 30th Annual Conference of IEEE
Print_ISBN :
0-7803-8730-9
DOI :
10.1109/IECON.2004.1431769
