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Loss characterization of flux-switched permanent magnet linear motor based on multi-physics field coupling analysis

Ying Hong

Ying Hong

Ministry of Public Foundation, Qinghai Qaidam Vocational & Technical CollegeDelingha, China
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Hong, Ying
  
Sep 24, 2025
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Published Online: Sep 24, 2025
Received: Jan 17, 2025
Accepted: May 04, 2025
DOI: https://doi.org/10.2478/amns-2025-0972
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© 2025 Ying Hong, published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 International License.

Figure 1.

Evolution diagram of single-side flux switching linear motor
Evolution diagram of single-side flux switching linear motor

Figure 2.

Evolution diagram of double-sided flux switching linear motor
Evolution diagram of double-sided flux switching linear motor

Figure 3.

LFSPM Topological structure diagram
LFSPM Topological structure diagram

Figure 4.

Eddy current loss of permanent magnet
Eddy current loss of permanent magnet

Figure 5.

The law of eddy current loss changing with load
The law of eddy current loss changing with load

Figure 6.

d, q axis given current set
d, q axis given current set

Figure 7.

d, q axis feedback current set
d, q axis feedback current set

Figure 8.

Running speed under the constant slip frequency control
Running speed under the constant slip frequency control

Figure 9.

Running speed under the vector control
Running speed under the vector control

Figure 10.

Secondary current loss under the constant slip frequency control
Secondary current loss under the constant slip frequency control

Figure 11.

Secondary current loss under the vector control
Secondary current loss under the vector control

Figure 12.

Primary core loss under the constant slip frequency control
Primary core loss under the constant slip frequency control

Figure 13.

Primary core loss under the vector control
Primary core loss under the vector control

The radial and tangential wave at each point and the amplitude of harmonic

Harmonic frequency 0 1 3 5 7 9 11
Point A radial 0.041 2.385 0.382 0.293 0.031 0.058 0.013
point A tangential 0.033 1.952 0.720 0.118 0.026 0.034 0.018
Point B radial 0.054 2.481 0.463 0.067 0.019 0.026 0.007
point B tangential 0.038 1.890 2.061 0.159 0.008 0.046 0.023
Point C radial 0.001 2.267 2.115 0.384 0.036 0.002 0.010
point C tangential 0.072 0.092 2.483 0.182 0.029 0.005 0.020
Point D radial 0.068 1.831 0.820 0.366 0.017 0.013 0.004
point D tangential 0.006 1.505 1.328 0.029 0.073 0.030 0.016
Point E radial 0.064 1.720 1.173 0.290 0.052 0.011 0.008
point E tangential 0.027 0.302 0.005 0.001 0.001 0.002 0.001
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