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

fYear

1990

fDate

12-14 Aug 1990

Firstpage

366

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1990., Proceedings of the 33rd Midwest Symposium on

Conference_Location

Calgary, Alta.

Print_ISBN

0-7803-0081-5

Type

conf

DOI

10.1109/MWSCAS.1990.140729

Filename

140729