Open AccessRotor position on‐line estimation of aircraft brushless synchronous motor based on multi‐stage‐structure characteristics
Author(s) -
Meng Tao,
Liu Weiguo,
Jiao Ningfei,
Peng Jichang,
Zhu Yujie
Publication year - 2018
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2018.0037
Subject(s) - exciter , stator , rotor (electric) , control theory (sociology) , electromagnetic coil , synchronous motor , computer science , inductance , wound rotor motor , line (geometry) , position (finance) , permanent magnet synchronous generator , voltage , induction motor , engineering , electrical engineering , mathematics , artificial intelligence , geometry , control (management) , finance , economics
This study presents a novel on‐line rotor position estimation method of an aviation brushless synchronous motor in the low‐speed region using high‐frequency voltage signal injection. Square wave voltage signals are imposed on the stator windings of the main generator, and the response current signals extracted on the stator windings of the main exciter are used to estimate position information. The mutual inductance characteristics between stator windings and filed winding of the main generator are utilised. The proposed method eliminates the dependency on the magnetic saliency. Experimental results verify the feasibility and effectiveness of the proposed method.