Title :
A specially designed EV PM motor drive
Author :
Xia, W. ; Chin, Philip
Author_Institution :
Dept. of Electr. Eng., Singapore Polytech., Singapore
Abstract :
A specially designed electric vehicle (EV) PM motor drive is developed. The new PM phase decoupling brushless DC motor possesses the advantages of high power density, high efficiency, simple mathematical model and good torque performance. Meanwhile, a high speed efficiency-optimising control scheme is proposed for the motor. The high speed constant power operation is achieved in such a way that the transformer EMF is used to counteract the enlarged rotational EMF when the motor operates above the base speed. To obtain the efficiency optimising control, the advanced conduction angle is adaptively adjusted to minimise the system losses for a given operating point in the high speed region. Both simulation and experimental results are given in the paper
Keywords :
DC motor drives; adaptive control; brushless DC motors; control system analysis computing; control system synthesis; electric machine analysis computing; electric vehicles; machine control; machine testing; machine theory; optimal control; permanent magnet motors; traction motor drives; velocity control; PM brushless DC motor; conduction angle adaptive control; efficiency; electric vehicle; mathematical model; operating point; optimal speed control scheme; power density; rotational EMF; torque performance; transformer EMF; AC motors; Brushless DC motors; Brushless motors; DC motors; Motor drives; Power system reliability; Propulsion; Stators; Synchronous motors; Torque control;
Conference_Titel :
Energy Management and Power Delivery, 1998. Proceedings of EMPD '98. 1998 International Conference on
Print_ISBN :
0-7803-4495-2
DOI :
10.1109/EMPD.1998.702778
