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Energies 2016, 9(8), 580; doi:10.3390/en9080580

Analytical Calculation of D- and Q-axis Inductance for Interior Permanent Magnet Motors Based on Winding Function Theory

1
State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, China
2
Department of Electrical Engineering, Harbin Institute of Technology, Harbin 150001, China
*
Author to whom correspondence should be addressed.
Academic Editor: K. T. Chau
Received: 30 April 2016 / Revised: 3 July 2016 / Accepted: 21 July 2016 / Published: 25 July 2016
(This article belongs to the Special Issue Electric Machines and Drives for Renewable Energy Harvesting)
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Abstract

Interior permanent magnet (IPM) motors are widely used in electric vehicles (EVs), benefiting from the excellent advantages of a more rational use of energy. For further improvement of energy utilization, this paper presents an analytical method of d- and q-axis inductance calculation for IPM motors with V-shaped rotor in no-load condition. A lumped parameter magnetic circuit model (LPMCM) is adopted to investigate the saturation and nonlinearity of the bridge. Taking into account the influence of magnetic field distribution on inductance, the winding function theory (WFT) is employed to accurately calculate the armature reaction airgap magnetic field and d- and q-axis inductances. The validity of the analytical technique is verified by the finite element method (FEM). View Full-Text
Keywords: interior permanent magnet motor; d- and q-axis inductances; lumped parameter magnetic circuit model; winding function theory; armature reaction magnetic field; saturation; nonlinearity interior permanent magnet motor; d- and q-axis inductances; lumped parameter magnetic circuit model; winding function theory; armature reaction magnetic field; saturation; nonlinearity
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MDPI and ACS Style

Liang, P.; Pei, Y.; Chai, F.; Zhao, K. Analytical Calculation of D- and Q-axis Inductance for Interior Permanent Magnet Motors Based on Winding Function Theory. Energies 2016, 9, 580.

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