Permanent-magnet-free-synchronous motor with self-excited wound-field technique utilizing space harmonics

This paper describes a permanent-magnet-free synchronous motor where space harmonic power is utilized for the field magnetization instead of permanent magnets. The stator has a three-phase concentrated winding structure, and the rotor has two types of windings, i.e., an induction coil that retrieves...

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Bibliographic Details
Main Authors: Aoyama, Masahiro, Noguchi, Toshihiko
Format: Conference Proceeding
Language:English
Subjects:
concentrated winding stator
diode rectifier
Harmonic analysis
HEV application
induced current
Magnetic flux
permanent-magnet-free
Rotors
self-excitation
space harmonics
Stator windings
synchronous motor
Synchronous motors
Windings
wound-field
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Description
Summary:This paper describes a permanent-magnet-free synchronous motor where space harmonic power is utilized for the field magnetization instead of permanent magnets. The stator has a three-phase concentrated winding structure, and the rotor has two types of windings, i.e., an induction coil that retrieves mainly the second space harmonic and a field coil for the field magnetization. The two coils are connected via a center-tapped full bridge diode rectifying circuit. The principle of self-excitation utilizing space harmonics power is conducted, and the mathematical model is discussed. In addition, experimental test results are demonstrated compared with interior-permanent-magnet synchronous motor for HEV application.
ISSN:2470-6647
DOI:10.1109/APEC.2017.7931152