Title :
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
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;
Journal_Title :
Industry Applications, IEEE Transactions on
