Table of Contents
ISRN Power Engineering
Volume 2013 (2013), Article ID 187686, 10 pages
Research Article

Increase Performance of IPMSM by Combination of Maximum Torque per Ampere and Flux-Weakening Methods

1Department of Electrical and Electronic Engineering, Universiti Putra Malaysia, Selangor, Malaysia
2Department of Electrical Engineering, Research and Science Branch, Islamic Azad University, Kerman, Iran
3Department of Electrical and Electronic Engineering, Islamic Azad University, Bushehr Branch, Bushehr, Iran
4Department of Electrical and Electronic Engineering, Islamic Azad University, Majlesi Branch, Majlesi, Iran

Received 31 May 2013; Accepted 5 July 2013

Academic Editors: V. Fernao Pires and A. Gaouda

Copyright © 2013 Saman Toosi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Interior permanent magnet motor (IPMSM) was used as air conditioner compressor to reduce the power consumption and improve the performance of the system. Two control methods including maximum torque per ampere (MTPA) and flux-weakening methods were employed to increase the speed range of the air conditioner compressor. The present study adapted the flux weakening algorithm technique which can be used for constant torque and constant power regions. Results indicated that the operation speed range of the IPMSM may increase significantly by using the proposed flux weakening algorithm.