Open AccessVerification of effect of secondary conductor bar on starting characteristics in line‐start type self‐excited wound‐field synchronous motor
Author(s) -
Aoyama Masahiro,
Mizuta Takahiro,
Ito Kazumasa
Publication year - 2020
Publication title -
iet electric power applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.815
H-Index - 97
eISSN - 1751-8679
pISSN - 1751-8660
DOI - 10.1049/iet-epa.2020.0497
Subject(s) - wound rotor motor , field coil , synchronous motor , conductor , rotor (electric) , bar (unit) , physics , electrical engineering , dc motor , ac motor , control theory (sociology) , line (geometry) , engineering , electric motor , induction motor , computer science , voltage , materials science , mathematics , control (management) , geometry , artificial intelligence , meteorology , composite material
This study clarifies experimentally the effect of the secondary conductor bar on line‐start characteristics in a line‐start type self‐excited wound‐field synchronous motor. This motor is based on a brushless wound‐field synchronous motor having a rotor winding connected to a diode rectifier circuit. And it has a secondary conductor bar that is independently connected at a pitch of one pole, without end‐ring. First, the operation principle of the proposed motor and its magnetic circuit design are described, and then the details of the prototype for principle verification are clarified. Next, when the combination of the connecting of the secondary conductor bar is changed, an experiment of line‐starting characteristics and measured rotor field current is demonstrated. Consequently, it was clarified that the influence on the synchronous pull‐in, speed ripple, and rotor field current.