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A Flux‐Modulating Synchronous Machine with Permanent Magnet Excitation
Author(s) -
FUKAMI TADASHI,
UENO YUSUKE,
SHIMA KAZUO
Publication year - 2016
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.22885
Subject(s) - armature (electrical engineering) , stator , magnet , electromagnetic coil , excitation , torque , synchronous motor , direct torque control , permanent magnet synchronous generator , rotor (electric) , control theory (sociology) , vector control , engineering , electrical engineering , automotive engineering , mechanical engineering , computer science , physics , induction motor , voltage , control (management) , artificial intelligence , thermodynamics
SUMMARY This paper presents a novel type of flux‐modulating synchronous machine (FMSM) in which permanent magnets (PMs) are embedded in the stator back‐iron. The rotor has neither windings nor PMs. A prototype machine with an outer‐rotor configuration was designed and manufactured to validate the operating principle of the FMSM. The characteristics in the motor mode of the prototype machine were also investigated with a vector control system. The results of the investigations show that, as in surface‐mounted PM motors, the torque of the FMSM is predominantly generated by the PM flux and can be controlled using the armature current.