Title :
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
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;
Conference_Titel :
Power Electronics and Motion Control Conference (EPE/PEMC), 2010 14th International
Conference_Location :
Ohrid
Print_ISBN :
978-1-4244-7856-9
DOI :
10.1109/EPEPEMC.2010.5606645
