LAPSE:2023.34674
Published Article
LAPSE:2023.34674
Effect of Slot Opening on Permanent Magnet Power Loss of a Permanent Magnet Synchronous Machine Driven by PWM
April 27, 2023
In this study, the influence of slot opening on the leakage reactance, power factors, winding current, and air gap flux density, as well as other parameters of the surface-mounted permanent magnet synchronous motor driven by an inverter is analyzed using the two-dimensional time-step finite element method. Thus, the law of permanent magnet power loss caused by slot opening under PWM qa obtained. The results show that the leakage reactance of the motor increased when the slot opening decreased from 7 mm to 2 mm. Then, the armature ripple current caused by the inverter was found to be suppressed well, and the high harmonic current was filtered well. This reduced the amplitude of the high-order harmonic of the air gap flux density, and the permanent magnet power loss was reduced by nearly 75%. Finally, two prototypes with different slot openings were tested for permanent magnet temperature rise, which verified the analysis method and calculation results proven in this paper.
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Keywords
finite element method (FEM), inverter driving, permanent magnet loss, permanent magnetic synchronous machine (PMSM)
Suggested Citation
Yang G, Wang X, Yang C, Wang D, Wu H, Wang X. Effect of Slot Opening on Permanent Magnet Power Loss of a Permanent Magnet Synchronous Machine Driven by PWM. (2023). LAPSE:2023.34674
Author Affiliations
Yang G: Laboratory of Aerospace Servo Actuation and Transmission (LASAT), Beijing Institute of Precision Mechatronics and Controls, Beijing 100076, China [ORCID]
Wang X: Laboratory of Aerospace Servo Actuation and Transmission (LASAT), Beijing Institute of Precision Mechatronics and Controls, Beijing 100076, China
Yang C: Laboratory of Aerospace Servo Actuation and Transmission (LASAT), Beijing Institute of Precision Mechatronics and Controls, Beijing 100076, China
Wang D: Laboratory of Aerospace Servo Actuation and Transmission (LASAT), Beijing Institute of Precision Mechatronics and Controls, Beijing 100076, China
Wu H: Laboratory of Aerospace Servo Actuation and Transmission (LASAT), Beijing Institute of Precision Mechatronics and Controls, Beijing 100076, China
Wang X: Laboratory of Aerospace Servo Actuation and Transmission (LASAT), Beijing Institute of Precision Mechatronics and Controls, Beijing 100076, China
Wang X: Laboratory of Aerospace Servo Actuation and Transmission (LASAT), Beijing Institute of Precision Mechatronics and Controls, Beijing 100076, China
Yang C: Laboratory of Aerospace Servo Actuation and Transmission (LASAT), Beijing Institute of Precision Mechatronics and Controls, Beijing 100076, China
Wang D: Laboratory of Aerospace Servo Actuation and Transmission (LASAT), Beijing Institute of Precision Mechatronics and Controls, Beijing 100076, China
Wu H: Laboratory of Aerospace Servo Actuation and Transmission (LASAT), Beijing Institute of Precision Mechatronics and Controls, Beijing 100076, China
Wang X: Laboratory of Aerospace Servo Actuation and Transmission (LASAT), Beijing Institute of Precision Mechatronics and Controls, Beijing 100076, China
Journal Name
Energies
Volume
15
Issue
20
First Page
7485
Year
2022
Publication Date
2022-10-11
Published Version
ISSN
1996-1073
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PII: en15207485, Publication Type: Journal Article
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LAPSE:2023.34674
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doi:10.3390/en15207485
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[v1] (Original Submission)
Apr 27, 2023
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Apr 27, 2023
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