In this paper, derating factor of induction motors that are subjected to regular fluctuations (flicker) has been calculated. Voltage flicker is one of the most important phenomena in power systems study. The phenomenon may cause additional losses and decrease the efficiency of the induction motors. Due to huge amount of induction motors in the different industries, it is important to study the effect of voltage fluctuation on the induction motors behavior. The paper applies electrical, mechanical and thermal models of induction motors to estimate additional losses, temperature rise and derating factor.
Naghizadeh َ, Ghaseminejad M, Doroodi A. Derating Factor of Induction Motors Subjected to Voltage Fluctuations. IJE 2012; 14 (4) URL: http://necjournals.ir/article-1-297-en.html