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

fYear

2007

fDate

8-11 Oct. 2007

Firstpage

1686

Lastpage

1689

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;

fLanguage

English

Publisher

ieee

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

Type

conf

Filename

4412317