Improved flux linkage method for position sensorless control of high-speed SRM

Author

Ma, Q.Q. ; Liang, W.H. ; Ferreira, F.J.T.E. ; Bi, D.Q. ; Ge, B.M.

Author_Institution

Sch. of Electr. Eng., Beijing Jiaotong Univ., Beijing, China

fYear

2014

fDate

2-5 Sept. 2014

Firstpage

783

Lastpage

788

Abstract

Traditional simplified flux linkage method is not suitable for the control of high-speed and super-highspeed SRM drives. In this paper, a high-speed SRM position sensorless control strategy based on an improved simplified flux linkage method to estimate the rotor position is proposed. This method has the capability of timely adjust the phase turn-on/off angle at different speeds and can extend the maximum achievable speed for a constant DC-bus voltage. The principle of selecting the reference flux linkage on the basis of the SRM current-flux model to improve the precision of rotor angular position estimation is presented. The proposed control strategy is experimentally tested in two different SRM drives and the results show its feasibility, reliability and effectiveness, both for low- and high-speed SRM.

Keywords

angular velocity control; electric current control; phase control; position control; reliability; reluctance motor drives; rotors; sensorless machine control; SRM current-flux model; constant DC-bus voltage; high-speed SRM drive; improved simplified flux linkage method; phase turn-on-off angle adjustment; position sensorless control; reliability; rotor angular position estimation; super-high-speed SRM drive; Couplings; Estimation; Inductance; Prototypes; Reluctance motors; Rotors; flux linkage method; high-speed motor; position sensorless control; switched reluctance motor;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines (ICEM), 2014 International Conference on

Conference_Location

Berlin

Type

conf

DOI

10.1109/ICELMACH.2014.6960270

Filename

6960270