Naslov
Sensorless speed detection of squirrel-cage induction machines using stator neutral point voltage harmonics

Autori
Petrović, Goran ; Kilić, Tomislav ; Terzić, Božo

Izvornik
Mechanical systems and signal processing (0888-3270) 23 (2009), 3; 931-939

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
induction squirrel-cage machines; rotor slot harmonics; sensorless speed detection

Sažetak
In this paper a sensorless speed detection method of induction squirrel-cage machines is presented. This method is based on frequency determination of the stator neutral point voltage primary slot harmonic, which is dependent on rotor speed. In order to prove method in steady state and dynamic conditions the simulation and experimental study was carried out. For theoretical investigation the mathematical model of squirrel cage induction machines, which takes into consideration actual geometry and windings layout, is used. Speed- related harmonics that arise from rotor slotting are analyzed using digital signal processing and DFT algorithm with Hanning window. The performance of the method is demonstrated over a wide range of load conditions.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

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