Rotor position on-line estimation of aircraft brushless synchronous motor based on multi-stage-structure characteristics

Tao Meng; Weiguo Liu; Ningfei Jiao; Jichang Peng; Yujie Zhu

Rotor position on-line estimation of aircraft brushless synchronous motor based on multi-stage-structure characteristics

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Author(s): Tao Meng¹ ; Weiguo Liu¹ ; Ningfei Jiao¹ ; Jichang Peng¹ ; Yujie Zhu¹
- Affiliations: 1: Institute of REPM Electrical Machines and Control Technology, Department of Electrical Engineering, Northwestern Polytechnical University , Xi'an, Shaanxi 710072 , People's Republic of China
Source: Volume 2018, Issue 13, 2018, p. 473 – 477
DOI: 10.1049/joe.2018.0037 , Online ISSN 2051-3305

This is an open access article published by the IET under the Creative Commons Attribution-NonCommercial-NoDerivs License (http://creativecommons.org/licenses/by-nc-nd/3.0/)

Received 10/01/2018, Accepted 17/01/2018, Published 02/02/2018

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.

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Rotor position on-line estimation of aircraft brushless synchronous motor based on multi-stage-structure characteristics

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