International Journal of Engineering Research in Electrical and Electronic Engineering (IJEREEE)

Evolution of the Performance of Btfcl-Br with Genetic Algorithm for Enhancing the Power Quality of Grid Connected Dfig

Author : Velappagari Sekhar ¹ Dr.K.Ramesh ² V.Srimaheswaran ³ Malini.K.V ⁴

Date of Publication :15th November 2017

Abstract: Performance of Bridge Type Fault Current-Limiter with Bypass Resistor (BTFCL-BR) for enhancing the power quality of Grid-connected Double Fed Induction Generator (DFIG) is evaluated in this paper. The normal BTFCL can enhance the power quality of DFIG. However, the Fault current limiting Inductor (FCLI) is periodically inserted into the stator circuit of DFIG under normal operation for compensating power losses of the FCLI. The insertion of the FCLI induces stator voltage spikes, which causes significant Electromagnetic torque oscillations and stator flux. One feasible way to solve this problem is to use a BTFCL-BR with GA (Genetic Algorithm) is presented to the Bypass Resistor (BR) absorbs the majority of current harmonics during normal operation and eliminates the stator voltage spikes. The electromagnetic torque as fluctuations and flux can be significantly reduced. The performance of BTFCR-BR with Genetic Algorithm is evaluated by simulating on a typical 1.5MW wind turbine driven DFIG system. By simulation evaluation, it seems that the BTFCR-BR with GA approach is the most promising solution among common BTFCL.

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