سال انتشار: ۱۳۹۰
محل انتشار: نوزدهمین کنفرانس مهندسی برق ایران
تعداد صفحات: ۶
Hamed Gorginpour – Dept. of Electrical Engineering, Islamic Azad University, Dashtestan Branch, Borazjan, Iran
Behzad Jandaghi – Dept. of Electrical Engineering, Sharif University of Technology, Tehran, Iran
Hashem Oraee –
Brushless Doubly fed machines have two stator windings and an especial cage rotor. The main advantage of the machine is higher reliability in compare with DFIGs. Cross coupling is the mechanism, which provides indirect coupling of the two stator windings. In this paper, time and space harmonics in a BDFM are studied to find a criterion for evaluating different rotor designs and better cross coupling, based on the space harmonics. Then the equivalent space and time harmonic circuits are established, using basic equivalent circuit. Finally, the effects of these harmonics on the torquespeed characteristic are studied.