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Volume 14
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10.3390/en14020318
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Article

Research on the Non-Magnetic Conductor of a PMSM Based on the Principle of Variable Exciting Magnetic Reluctance

by
Chunyan Li
1,*,
Fei Guo
1,
Baoquan Kou
2 and
Tao Meng
1
1
Department of Mechanical and Electrical Engineering, Heilongjiang University, Harbin 150080, China
2
Department of Electrical Engineering, Harbin Institute of Technology, Harbin 150080, China
*
Author to whom correspondence should be addressed.
Energies 2021, 14(2), 318; https://doi.org/10.3390/en14020318
Submission received: 3 December 2020 / Revised: 22 December 2020 / Accepted: 4 January 2021 / Published: 8 January 2021
(This article belongs to the Special Issue Design and Control of Electrical Machines and Drives)
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Abstract

A permanent magnet synchronous motor (PMSM) based on the principle of variable exciting magnetic reluctance (VMRPMSM) is presented. The motor is equipped with symmetrical non-magnetic conductors on both sides of the tangential magnetized permanent magnets (PMs). By placing the non-magnetic conductor (NMC), the magnetic reluctance in the exciting circuit is adjusted, and the flux weakening (FW) of the motor is realized. Hence, the NMC is studied comprehensively. On the basis of introducing the motor structure, the FW principle of this PMSM is described. The shape of the NMC is determined by analyzing and calculating the electromagnetic force (EF) acting on the PMs. We calculate the magnetic reluctance of the NMC and research on the effects of the NMC on electromagnetic force, d-axis and q-axis inductance and FW performance. The critical speeds from the test of the no-load back electromotive force (EMF) verify the correctness of the NMC design. The analysis is corresponding to the test result which lays the foundation of design for this kind of new PMSM.
Keywords: permanent magnet synchronous motor; variable magnetic reluctance; non-magnetic conductor; flux weakening permanent magnet synchronous motor; variable magnetic reluctance; non-magnetic conductor; flux weakening

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MDPI and ACS Style

Li, C.; Guo, F.; Kou, B.; Meng, T. Research on the Non-Magnetic Conductor of a PMSM Based on the Principle of Variable Exciting Magnetic Reluctance. Energies 2021, 14, 318. https://doi.org/10.3390/en14020318

AMA Style

Li C, Guo F, Kou B, Meng T. Research on the Non-Magnetic Conductor of a PMSM Based on the Principle of Variable Exciting Magnetic Reluctance. Energies. 2021; 14(2):318. https://doi.org/10.3390/en14020318

Chicago/Turabian Style

Li, Chunyan, Fei Guo, Baoquan Kou, and Tao Meng. 2021. "Research on the Non-Magnetic Conductor of a PMSM Based on the Principle of Variable Exciting Magnetic Reluctance" Energies 14, no. 2: 318. https://doi.org/10.3390/en14020318

APA Style

Li, C., Guo, F., Kou, B., & Meng, T. (2021). Research on the Non-Magnetic Conductor of a PMSM Based on the Principle of Variable Exciting Magnetic Reluctance. Energies, 14(2), 318. https://doi.org/10.3390/en14020318

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