Open AccessControl of wheel motors for the provision of traction and steering of railway vehicles
Author(s) -
Mei T.X.,
Qu Kewang,
Li Hong
Publication year - 2014
Publication title -
iet power electronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.637
H-Index - 77
eISSN - 1755-4543
pISSN - 1755-4535
DOI - 10.1049/iet-pel.2013.0882
Subject(s) - traction control system , traction (geology) , traction motor , automotive engineering , rotor (electric) , harmonics , position sensor , engineering , voltage , computer science , control theory (sociology) , control (management) , electrical engineering , mechanical engineering , artificial intelligence
This study presents the development of a control system for permanent magnet motors embedded in railway wheels for integrated traction and steering of rail vehicles. The overall control scheme and the control strategies for the provision of traction and wheelset steering are presented, but a main focus of this study will be concerned with the development of a new sensor‐less position detection technique that overcomes the difficulties of position detection at zero and very low speed using the back‐emf‐based methods. The new technique does not require the injection of high frequency harmonics, and detects the motor position from simple measurements of the neutral point voltage of the motor influenced by the variation of inductances with respect to rotor position. Both theoretical development and experimental verifications are provided.