Title :
Permanent magnet brushless drives
Author :
Chan, C.C. ; Xia, W. ; Jiang, J.Z. ; Chan, K.T. ; Zhu, M.I.
Author_Institution :
Dept. of Electr. & Electron. Eng., Hong Kong Univ., Hong Kong
Abstract :
The purpose of this paper is to present an optimal efficiency control scheme for constant power operation of phase decoupling (PD) PM brushless DC motor drives. The key is to adaptively adjust the advanced conduction angle to minimize the system losses for a given operation point in the constant power region. The strategy for constant power operation of PD PM brushless DC motor drives is exemplified using a 5-phase 22-pole PD PM brushless DC motor. In the sections that follow, the newly-developed optimal efficiency control technique is then illustrated. Then, after describing the corresponding implementation, both computer simulation and experimental results are presented, and some conclusions are offered
Keywords :
DC motor drives; brushless DC motors; machine control; optimal control; permanent magnet motors; 5-phase 22-pole PD PM brushless DC motor; advanced conduction angle adaptive adjustment; computer simulation; constant power operation; optimal efficiency control scheme; phase decoupling PM brushless DC motor drives; system losses minimisation; AC motors; Brushless DC motors; Brushless motors; Control systems; Drives; Magnetic flux; Optimal control; Permanent magnets; Size control; Torque control;
Journal_Title :
Industry Applications Magazine, IEEE
DOI :
10.1109/2943.730754
