Title :
An initial rotor position estimation method for switched reluctance motor without using machine parameter
Author :
Jitkreeyarn, P. ; Kachapornkul, S. ; Somsiri, P. ; Tungpimolrut, K. ; Chiba, Akira ; Fukao, Tadashi
Author_Institution :
Nat. Electron. & Comput. Technol. Center, Bangkok
Abstract :
In this paper a method to estimate the initial rotor position of the switched reluctance motor (SRM) at the stand still condition is proposed. The proposed method can be implemented by the simple microcontroller based system, and it is not necessary to know the magnetization curves. The impulse gate drive signal is applied and the winding current is detected and its approximate value is used for calculating the rotor position. The compensation method to reduce the estimation error thorough one cycle is also mentioned. The proposed method is implemented with the 6-stator-pole and 4-rotor-pole, 1.5 kW 3-phase switched reluctance motor.
Keywords :
microcontrollers; position measurement; reluctance motors; rotors; 3-phase SRM; 4-rotor-pole; 6-stator-pole; estimation error reduction; impulse gate drive signal; initial rotor position estimation method; microcontroller based system; switched reluctance motor; winding current; Automation; Couplings; Estimation error; Inductance measurement; Industrial control; Magnetic switching; Optical sensors; Reluctance machines; Reluctance motors; Rotors; Switched reluctance motor; estimation; initial rotor position;
Conference_Titel :
Electrical Machines and Systems, 2007. ICEMS. International Conference on
Conference_Location :
Seoul
Print_ISBN :
978-89-86510-07-2
Electronic_ISBN :
978-89-86510-07-2
