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Islanding is a condition in which the distributed generation along with the local load starts operating independently when isolated from rest of the power system. Because of the adverse effect of island operation, islanding detection is a necessary requirement in distributed generation system and it must be detected accurately and quickly. In present scenario of power system, loads can be balanced,...
This paper presents a selective harmonic feedback control strategy with nine switch converter (NSC) instead of using separate PGSC and SGSC to improve the controlled operation of a grid connected doubly fed induction generator (DFIG) based wind energy conversion system (WECS) and also provide voltage harmonic compensation under unbalance non-linear load at PCC. The Nine switch converter having two...
In this paper, the sliding mode control (SMC) based vector control is applied to a grid connected doubly fed induction generator (DFIG) based variable speed wind energy conversion system to improve the dynamic performances while controlling independently the generated active and reactive powers over traditional PI controller under different wind speed patterns. The robust performance analysis of SMC...
This paper presents the performance study of a speed sensor-less control of grid connected DFIG based variable speed Wind Energy Conversion System (WECS). A new phase locked loop (PLL) based slip speed estimator using rotor current is proposed for speed sensor-less stator field oriented vector control operation of rotor side converter (RSC) to ensure decoupled control of stator active and reactive...
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