High-Frequency Physics-Based Analytical Modeling of Permanent Magnet Synchronous Motor

Rahimi, Alireza; Kanzi, Khalil

doi:10.30503/eecs.2019.110966

Document Type : Original Article

Authors

Alireza Rahimi ¹
Khalil Kanzi ²

¹ Iranian Research Institute for Electrical Engineering (IREE), ACECR, Tehran, Iran

² Department of Electrical Engineering, ACECR, Tehran, Iran

https://doi.org/10.30503/eecs.2019.110966

Abstract

In this paper, a physics-based analytical method is proposed in order to model the frequency behavior of laminated iron-core permanent magnet synchronous motor (PMSM). The proposed model consists of frequency-dependent lumped circuit parameters representing two parts; Iron-core and stator winding. These frequency-dependent components represent the skin effect and proximity effect in conductors and eddy-currents effect in the core. The total parasitic capacitance is considered to be frequency-independent and estimated from measured impedance characteristics of the PMSM. In order to verify the accuracy of the proposed model, we compared the equivalent AC resistance and AC inductance of one phase of a counter-rotating PMSM calculated from the proposed analytical method with the 3D finite element analysis (FEA) results. Finally, the Impedance characteristic of the test PMSM calculated using the proposed method is verified by the impedance measurement data, which shows a good agreement. The method proposed in this paper can be used for modeling various high-frequency issues in variable speed drives (VSDs) such as electromagnetic interference (EMI), common-mode bearing currents, and long-cable effects on motor terminals.

Keywords

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Electromechanical Energy Conversion Systems

High-Frequency Physics-Based Analytical Modeling of Permanent Magnet Synchronous Motor

References

References

Volume 1, Issue 2
April 2021
Pages 1-10

High-Frequency Physics-Based Analytical Modeling of Permanent Magnet Synchronous Motor

References

References

Volume 1, Issue 2April 2021Pages 1-10

Volume 1, Issue 2
April 2021
Pages 1-10