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Volume 15
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10.3390/en15030878
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Article

An Analytical Method for Calculating the Cogging Torque of a Consequent Pole Hybrid Excitation Synchronous Machine Based on Spatial 3D Field Simplification

by
Zhiyan Zhang
1,
Ming Zhang
1,
Jing Yin
1,
Jie Wu
1,* and
Cunxiang Yang
2
1
School of Electrical and Information Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China
2
School of Building Environment Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China
*
Author to whom correspondence should be addressed.
Energies 2022, 15(3), 878; https://doi.org/10.3390/en15030878
Submission received: 18 December 2021 / Revised: 22 January 2022 / Accepted: 23 January 2022 / Published: 25 January 2022
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Abstract

Consequent pole hybrid excitation synchronous (CPHES) machines have the advantage of symmetrical bidirectional magnetomotive force increments. Compared with a traditional hybrid excitation motor (HEM), a CPHES machine improves the disadvantage of asymmetry in the adjustment range when magnetization and demagnetization occur. The calculation and analysis of the cogging torque of the CPHES machine are complex due to the complicated structure. This paper proposes an analytical method for calculating the cogging torque of a CPHES machine. This analytical method converts the complex three-dimensional magnetic field problem into a two-dimensional magnetic circuit problem and, through the accumulation method, can quickly and accurately calculate the cogging torque of the CPHES machine. In contrast with the finite element method, the calculation results basically follow each other, but the analytical method is more efficient and omits complicated meshing. This is of great significance to the preliminary electromagnetic design and performance optimization of a CPHES machine.
Keywords: analytical method; cogging torque; CPHES machine; hybrid excitation machine; spatial field simplification analytical method; cogging torque; CPHES machine; hybrid excitation machine; spatial field simplification

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MDPI and ACS Style

Zhang, Z.; Zhang, M.; Yin, J.; Wu, J.; Yang, C. An Analytical Method for Calculating the Cogging Torque of a Consequent Pole Hybrid Excitation Synchronous Machine Based on Spatial 3D Field Simplification. Energies 2022, 15, 878. https://doi.org/10.3390/en15030878

AMA Style

Zhang Z, Zhang M, Yin J, Wu J, Yang C. An Analytical Method for Calculating the Cogging Torque of a Consequent Pole Hybrid Excitation Synchronous Machine Based on Spatial 3D Field Simplification. Energies. 2022; 15(3):878. https://doi.org/10.3390/en15030878

Chicago/Turabian Style

Zhang, Zhiyan, Ming Zhang, Jing Yin, Jie Wu, and Cunxiang Yang. 2022. "An Analytical Method for Calculating the Cogging Torque of a Consequent Pole Hybrid Excitation Synchronous Machine Based on Spatial 3D Field Simplification" Energies 15, no. 3: 878. https://doi.org/10.3390/en15030878

APA Style

Zhang, Z., Zhang, M., Yin, J., Wu, J., & Yang, C. (2022). An Analytical Method for Calculating the Cogging Torque of a Consequent Pole Hybrid Excitation Synchronous Machine Based on Spatial 3D Field Simplification. Energies, 15(3), 878. https://doi.org/10.3390/en15030878

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