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Optimum design of a multilayer interior permanent magnet synchronous motor using reluctance torque
Author(s) -
Honda Yukio,
Murakami Hiroshi,
Kazushige Narazaki,
Higaki Toshiro,
Morimoto Shigeo,
Takeda Yoji
Publication year - 1999
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/(sici)1520-6416(19990415)127:1<64::aid-eej8>3.0.co;2-8
Subject(s) - magnet , rotor (electric) , inductance , stator , finite element method , torque , ac motor , reluctance motor , electric motor , control theory (sociology) , mechanical engineering , switched reluctance motor , inverter , automotive engineering , materials science , electrical engineering , engineering , computer science , physics , voltage , structural engineering , control (management) , artificial intelligence , thermodynamics
The report analyzes the results of experiments done with an inverter drive interior permanent‐magnet (IPM) motor. We examine results of both FEM (finite element method) simulation and experiments using a prototype motor with identical conditions set for stator and magnet volume. The results indicated that with magnets implanted inside the rotor, the values for the d‐axis inductance of the motor remained roughly the same, unaffected by the shape or number of layers. However, the q‐axis inductance exhibited significant change. This research report compares an IPM motor having two layers of permanent magnets with a motor having a single layer. The dual layer shows a 30% or greater increase in torque using the same current. These results indicate that this motor is especially effective for such applications as robots, plant machinery, compressor motors, and electric vehicles. © 1999 Scripta Technica, Electr Eng Jpn, 127(1): 64–72, 1999