Affiliation of Author(s):自动化学院
Journal:ISA TRANSACTIONS
Key Words:Switched reluctance motor (SRM) Sensorless control Transformer electromotive force (EMF) Motional back electromotive force (BEMF) Special position detection
Abstract:This paper proposes a new sensorless control approach for switched reluctance motor (SRM) in the single pulse control mode in high speed operation. The sensorless method uses the cross point position of transformer electromotive force (EMF) and motional back electromotive force (BEMF) to estimate the rotor position. The cross point position can be derived from the inductance model of SRM, and it is regarded as reference position. The rotor position can be calculated by detecting the special position for each electrical cycle. The proposed position estimation method is not affected by the magnetic saturation of SRM. Importantly, no additional hardware and no complicated computation or memory storage are required with the proposed method: Finally, the simulation and experimental results on a three-phase 12/8-pole SRM demonstrate the validity of the proposed sensorless scheme. (C) 2017 ISA. Published by Elsevier Ltd. All rights reserved.
ISSN No.:0019-0578
Translation or Not:no
Date of Publication:2017-09-01
Co-author:Shao Jie,gys
Correspondence Author:deng zhiquan,Shao Jie
Date of Publication:2017-09-01