Title: Efficiency optimisation based speed control of IPMSM drive

Authors: M. Nasir Uddin, Fasil Abera

Addresses: Dept. of Electrical Engineering, Lakehead University, P7B 5E1, Thunder Bay, ON, Canada. ' Dept. of Electrical Engineering, Lakehead University, P7B 5E1, Thunder Bay, ON, Canada

Abstract: A model based energy optimisation algorithm for speed control of interior permanent magnet synchronous motor (IPMSM) drive is proposed in this paper. The efficiency of variable speed drives can be optimised by either the proper design of the motor or selecting the appropriate control techniques or both. In this work, the efficiency of IPMSM is optimised online based on a developed control technique. The d-axis armature current is utilised to minimise the losses of the IPMSM in a closed loop vector control environment. The completed drive is successfully implemented in real-time using DSP board DS1104 for a laboratory 5 hp motor. It is found from both simulation and experimental results that the efficiency of the proposed IPMSM drive is improved significantly as compared to the conventional id = 0 control technique.

Keywords: energy optimisation; permanent magnet synchronous motors; IPMSM drives; interior PMSM; proportional-integral controllers; PI control; speed control; vector control.

DOI: 10.1504/IJIED.2009.025344

International Journal of Industrial Electronics and Drives, 2009 Vol.1 No.1, pp.34 - 41

Published online: 19 May 2009 *

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