Eliminating starting hesitation for reliable sensorless control of switched reluctance motors

Author

Bu, Jianrong ; Xu, Longya

Author_Institution

Dept. of Electr. Eng., Ohio State Univ., Columbus, OH, USA

Volume

37

Issue

1

fYear

2001

Firstpage

59

Lastpage

66

Abstract

Novel methods for rotor position estimation both at standstill and during running conditions are presented for a switched reluctance machine (SRM) starting free of position sensor and hesitation. By applying a DC pulse to the stator phase windings for a short moment (0.5 ms), the initial rotor position can be accurately detected. Combining the accurate initial rotor position with a novel rotor position estimation algorithm during running, the SRM can be started at any initial rotor position without starting hesitation. Critical issues related to optimal model selection as the virtual sensor are discussed in detail. Computer simulation and experimental results are included

Keywords

control system analysis computing; electric machine analysis computing; fuzzy control; machine theory; machine vector control; parameter estimation; position control; reluctance motors; rotors; starting; 0.5 ms; DC pulse; SRM; computer simulation; control simulation; initial rotor position; optimal model selection; reliable sensorless control; rotor position estimation; rotor position estimation algorithm; running conditions; standstill; starting hesitation elimination; stator phase windings; switched reluctance motors; Computer simulation; Industry Applications Society; Optical sensors; Position measurement; Reluctance machines; Reluctance motors; Rotors; Sensorless control; Stators; Temperature sensors;

fLanguage

English

Journal_Title

Industry Applications, IEEE Transactions on

Publisher

ieee

ISSN

0093-9994

Type

jour

DOI

10.1109/28.903127

Filename

903127