A reduced-order position observer with stator-resistance adaptation for synchronous reluctance motor drives

Author

Tuovinen, Toni ; Hinkkanen, Marko ; Harnefors, Lennart ; Luomi, Jorma

Author_Institution

Sch. of Sci. & Technol., Dept. of Electr. Eng., Aalto Univ., Aalto, Finland

fYear

2010

fDate

6-8 Sept. 2010

Abstract

A reduced-order position observer with stator-resistance adaptation is applied for motion-sensorless synchronous reluctance motor drives. A general analytical solution for the stabilizing observer gain and stability conditions for the stator-resistance adaptation are given. The local stability of the position and stator-resistance estimation is guaranteed at every operating point except the zero frequency, if inductances are known accurately. The observer design is experimentally tested using a 6.7-kW synchronous reluctance motor drive; stable operation at low speeds under various loading conditions is demonstrated.

Keywords

observers; reduced order systems; reluctance motor drives; sensorless machine control; stability; stators; inductance; motion sensorless synchronous reluctance motor drives; power 6.7 kW; reduced order position observer gain; stator resistance estimation; zero frequency; Observers; Reluctance motors; Resistance; Rotors; Stator windings; Torque; Observer; speed sensorless; stability conditions; stator resistance estimation;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Motion Control Conference (EPE/PEMC), 2010 14th International

Conference_Location

Ohrid

Print_ISBN

978-1-4244-7856-9

Type

conf

DOI

10.1109/EPEPEMC.2010.5606645

Filename

5606645