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Loss Minimization Design Using Permeance Method for Interior Permanent Magnet Synchronous Motor
Author(s) -
SATO DAISUKE,
ITOH JUNICHI
Publication year - 2017
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.22931
Subject(s) - permeance , stator , finite element method , rotor (electric) , magnet , control theory (sociology) , synchronous motor , air gap (plumbing) , magnetic circuit , engineering , materials science , mechanical engineering , computer science , structural engineering , electrical engineering , composite material , permeation , genetics , control (management) , artificial intelligence , membrane , biology
SUMMARY In this study, the lowest loss point is calculated using the permeance method when the machine parameters of the interior permanent magnet synchronous motor are changed. Using the proposed method, the motor loss is easily calculated compared to the conventional method. The periodic change in the magnetic resistance in the air‐gap according to the rotation of the rotor does not need to be considered because the magnetic equivalent circuits of the rotor and stator are separated. In this study, the motor loss is calculated by the proposed method and a finite element method (FEM). As a result, the error in the calculation results between the permeance method and the FEM is 2.9%. On the other hand, the motor losses are calculated by the permeance method when some machine parameters are changed. As a result, these results agree in principle with those of the FEM. Therefore, the validity of the proposed method is confirmed. In addition, the method for motor design is considered in terms of the loss.
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