Parameter Identification for Interior Permanent Magnet Synchronous Motors in Air Conditioners Emphasis on the Effects of Magnetic Cross-Coupling and Induced Electromotive Force Harmonics
Article Sidebar
Main Article Content
Abstract
Interior permanent magnet synchronous motors (IPMSMs) are widely used in air conditioners. The compressor speed is controlled by inverter using sensorless control in which the performance depends mainly on motor parameters. However, the parameters provided by motor manufacturers are preliminary and often insufficiently accurate, especially when the motor structures are redesigned to reduce cost. Such circumstances can easily cause the saturation of iron core and lead to the necessity for accurate identification of motor parameters that should take the effects of magnetic cross-coupling and induced electromotive force harmonics into consideration. This article proposes a systematic procedure for parameter identification for IPMSMs that emphasizes the effects of magnetic cross-coupling and induced electromotive force harmonics. The proposed scheme can optimize the duration of parameters’ fine tuning in the testing process and can be practically applied in product development. Experimental results show that the parameters obtained by the proposed method are more accurate than those provided by motor manufacturers. Consequently, the control performance of the drive system of air conditioners can be improved across the entire operating range of compressors, while the rotor position estimation error can be reduced by up to 52 percent.
Article Details
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Article Accepting Policy
The editorial board of Thai-Nichi Institute of Technology is pleased to receive articles from lecturers and experts in the fields of engineering and technology written in Thai or English. The academic work submitted for publication must not be published in any other publication before and must not be under consideration of other journal submissions. Therefore, those interested in participating in the dissemination of work and knowledge can submit their article to the editorial board for further submission to the screening committee to consider publishing in the journal. The articles that can be published include solely research articles. Interested persons can prepare their articles by reviewing recommendations for article authors.
Copyright infringement is solely the responsibility of the author(s) of the article. Articles that have been published must be screened and reviewed for quality from qualified experts approved by the editorial board.
The text that appears within each article published in this research journal is a personal opinion of each author, nothing related to Thai-Nichi Institute of Technology, and other faculty members in the institution in any way. Responsibilities and accuracy for the content of each article are owned by each author. If there is any mistake, each author will be responsible for his/her own article(s).
The editorial board reserves the right not to bring any content, views or comments of articles in the Journal of Thai-Nichi Institute of Technology to publish before receiving permission from the authorized author(s) in writing. The published work is the copyright of the Journal of Thai-Nichi Institute of Technology.
References
Z. Q. Zhu and X. M. Wu, Sensorless Control of Permanent Magnet Synchronous Machine Drives. Hoboken, NJ, USA: Wiley, 2023.
B. Stumberger, G. Stumberger, D. Dolinar, A. Hamler, and M. Trlep, “Evaluation of saturation and cross-magnetization effects in interior permanent-magnet synchronous motor,” IEEE Trans. Industry Appl., vol. 39, no. 5, pp. 1264–1271, 2003.
Z. Q. Zhu, Y. Li, D. Howe, C. M. Bingham, and D. Stone, “Influence of machine topology and cross-coupling magnetic saturation on rotor position estimation accuracy in extended back-EMF based sensorless PM brushless AC drives,” in Proc. IEEE Industry Appl. Annu. Meeting, New Orleans, LA, USA, Sep. 2007, pp. 2378–2385.
K. Yamazaki and M. Kumagai, “Torque analysis of interior permanent-magnet synchronous motors by considering cross-magnetization: variation in torque components with permanent-magnet configurations,” IEEE Trans. Ind. Electron., vol. 61, no. 7, pp. 3192–3201, 2014.
Y. Li, Z. Q. Zhu, D. Howe, and C. M. Bingham, “Improved rotor position estimation in extended back-EMF based sensorless PM brushless AC drives with magnetic saliency,” in Proc. IEEE Int. Elect. Mach. Drives Conf. (IEMDC), Antalya, Turkey, May 2007, pp. 214–219.
Z. Q. Zhu, K. Liu, and D. Liang, Parameter Estimation of Permanent Magnet Synchronous Machines. Hoboken, NJ, USA: Wiley, 2025.
C. Yin, Y. Liu, and F. Chen, “Motor parameter identification for compressors based on the improved DC transient method,” in Proc. IEEE 3rd Int. Conf. Image Process. Comput. Appl. (ICIPCA), Shenyang, China, Jun. 2025, pp. 92–97.
T. Duraisingam, B. Li, and A. Sayed-Ahmed, “Offline self-commissioning method to estimate direct & quadrature axes inductance for IPM/SPM in industrial motor drive applications,” in Proc. IEEE Int. Elect. Mach. Drives Conf. (IEMDC), Houston, TX, USA, May 2025, pp. 329–335.
H. Kim and S. Bhattacharya, “Improved rotor position estimation in extended back-EMF based position sensorless control for IPMSMs with non-sinusoidal back-EMF,” in Proc. IEEE Industry Appl. Soc. Annu. Meeting, Detroit, MI, USA, Oct. 2020, pp. 1–7.
M. J. Nam, J. H. Kim, K.-Y. Cho, H.-W. Kim, and Y. Cho, “Torque ripple reduction of an interior PM synchronous motor by compensating harmonic currents based on flux linkage harmonics,” J. Power Electron., vol. 17, no. 5, pp. 1223–1230, 2017.
Z. Chen, M. Tomita, S. Doki, and S. Okuma, “An extended electromotive force model for sensorless control of interior permanent-magnet synchronous motors,” IEEE Trans. Ind. Electron., vol. 50, no. 2, pp. 288–295, 2003.
