Title :
A position sensorless control system of SRM over wide speed range
Author :
Kim, Min-Huei ; Bai, Won-Sik ; Kim, Dong-Hee ; Kim, Nam-Hun ; Choi, Kyeong-Ho
Author_Institution :
Dept. of Elec. Eng., Yeungnam Coll. of Sci. & Tech., Daegu
Abstract :
This paper presents a position sensorless control system of SRM over wide speed range. The rotor position estimation of the SRM is somewhat difficult because of its highly nonlinear characteristics. In this paper, the magnetizing curve of prototype 1-hp SRM is obtained from locked rotor test and complicated data patters are trained using neural network. To estimate more accurate rotor position, current-flux-rotor position lookup table over wide operating rage is generated using trained neural network. Experimental result for a 1-hp SRM over 16:1 speed control range is presented for the verification of the proposed sensorless control algorithm.
Keywords :
machine control; neural nets; position control; reluctance motors; rotors; table lookup; current-flux-rotor position; locked rotor test; lookup table; magnetizing curve; neural network; position sensorless control; rotor position estimation; switched reluctance motor; wide speed range; Educational institutions; Inductance; Mechanical sensors; Neural networks; Reluctance machines; Reluctance motors; Rotors; Sensorless control; Table lookup; Torque;
Conference_Titel :
Power Electronics, 2007. ICPE '07. 7th Internatonal Conference on
Conference_Location :
Daegu
Print_ISBN :
978-1-4244-1871-8
Electronic_ISBN :
978-1-4244-1872-5
DOI :
10.1109/ICPE.2007.4692466