Title :
Maximum efficiency control for permanent magnet synchronous motors
Author :
Tong, Yi ; Morimoto, Shigeo ; Takeda, Yoji ; Hirasa, Takao
Author_Institution :
Osaka Prefectural Univ., Sakai, Japan
fDate :
28 Oct-1 Nov 1991
Abstract :
The authors propose a maximum efficiency control algorithm for permanent magnet synchronous motors. This control method shows that motor losses are reduced considerably by controlling the d-axis component of the armature current at any speed and power levels. The optimum d-axis current is supplied by a controller which solves the maximum efficiency control algorithm. The steady-state and transient characteristics are examined in detail by computer simulations. The influence of the sensitivity to motor parameters on the efficiency characteristic is also investigated. A convenient control technique is described. Experimental results confirm the improvement of the efficiency with the proposed control system
Keywords :
control system analysis computing; digital simulation; optimal control; permanent magnet motors; sensitivity analysis; synchronous motors; armature current; control system analysis computing; controller; digital simulation; losses; machine control; maximum efficiency control algorithm; optimal control; permanent magnet synchronous motors; sensitivity; steady-state; transient; Control systems; Copper; Core loss; Equivalent circuits; Magnetic materials; Permanent magnet motors; Reluctance motors; Steady-state; Synchronous motors; Torque;
Conference_Titel :
Industrial Electronics, Control and Instrumentation, 1991. Proceedings. IECON '91., 1991 International Conference on
Conference_Location :
Kobe
Print_ISBN :
0-87942-688-8
DOI :
10.1109/IECON.1991.239293
