Naslov
Rotor flux estimation method for cage induction generators used in wind power applications

Autori
Kutija, Martina ; Sumina, Damir ; Čolović, Igor ; Idžotić, Tomislav

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the 2015 IEEE International Conference on Industrial Technology, ICIT 2015 / - , 2015, 1155-1160

Skup
IEEE International Conference on Industrial Technology, ICIT 2015

Mjesto i datum
Sevilla, Španjolska, 17.03.2015. - 19.03.2015

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Rotor flux estimation; Cage induction generator; Wind power applications

Sažetak
This paper describes the rotor flux estimation method for squirrel-cage induction generators (SCIGs) used in wind power applications. The proposed method estimates rotor flux angle and magnitude in rotor reference frame by using measured stator currents, rotor angle and rotor time constant and can be also used in induction motor drives.. The performance of the proposed method is compared to the performance of the voltage based estimator which is commonly used flux estimation method in sensorless field oriented vector control (FOC). The pure integrator in voltage based estimator is replaced by a low- pass filter and quadrature detector used to detect orthogonality between the estimated flux and back- emf vectors. Both methods are implemented in a digital control system and verified on the laboratory model. Experimental setup consists of a squirrel-cage induction machine (560 kW) connected to the grid via back-to-back converter and a permanent magnet machine (375 kW) driven by the industrial frequency converter and used as a wind turbine emulator. The advantages and disadvantages of the proposed method are demonstrated by experiments.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA