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 switched reluctance machine 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 switched reluctance machine 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; control system synthesis; electric machine analysis computing; machine vector control; parameter estimation; position control; reluctance motors; rotors; starting; stators; DC pulse application; SRM; computer simulation; control design; control simulation; initial rotor position detection; optimal model selection; rotor position estimation algorithm; sensorless control; starting hesitation elimination; stator phase windings; switched reluctance motor starting; virtual sensor; Computer simulation; Position measurement; Reluctance machines; Reluctance motors; Rotors; Senior members; Sensorless control; Stators; Student members; Temperature sensors;
Conference_Titel :
Industry Applications Conference, 1998. Thirty-Third IAS Annual Meeting. The 1998 IEEE
Conference_Location :
St. Louis, MO, USA
Print_ISBN :
0-7803-4943-1
DOI :
10.1109/IAS.1998.732403
