Title :
Steady state and harmonic analysis of DOIG operating with WECS
Author :
Mohamed, A.A. ; El Hagry, M.T. ; Iskander, M.N.
Author_Institution :
Fac. of Eng., Menoufia Univ., Egypt
Abstract :
The steady state performance of both the IG (induction generator) and the DOIG (double output IG) employed in a VCSF (variable speed constant frequency) WECS (wind energy conversion system) is investigated experimentally. The presence of a DC link converter in the rotor circuit causes harmonic currents in both rotor and stator which produce harmonic torques and increase the machine losses. The authors present a new simplified method of calculating torque pulsations and harmonic copper losses. The validity of this method is confirmed. Also, the effect of some parameter variations on the torque pulsations and copper losses is given
Keywords :
asynchronous generators; harmonic analysis; losses; machine theory; torque; variable speed gear; wind power plants; DC link converter; WECS; double output; harmonic Cu losses; harmonic analysis; harmonic currents; harmonic torques; induction generator; machine losses; parameter variations; rotor circuit; steady state performance; torque pulsations; variable speed constant frequency; wind energy conversion system; Circuits; Copper; Frequency conversion; Harmonic analysis; Induction generators; Rotors; Stators; Steady-state; Torque converters; Wind energy;
Conference_Titel :
Circuits and Systems, 1990., Proceedings of the 33rd Midwest Symposium on
Conference_Location :
Calgary, Alta.
Print_ISBN :
0-7803-0081-5
DOI :
10.1109/MWSCAS.1990.140729
