Voltage stability enhancement of DFIG based wind farm during fault using STATCOM

Reactive Power Management at PCC with DFIG Based Wind Energy System

“…Different topologies of DFIG's are proposed by various researches and all the topologies there is reactive power requirement that need to be met for successful operation of DFIG. To compensate for the reactive power, many researchers [3][4][5][6][7][8][9][10][11][12][13][14][15] have proposed STATCOM at strategic locations in the transmission system or at PCC. A shunt connected STATCOM using vector controlled technique is employed in distribution system for weak connected grid and it was concluded that STATCOM compensated for reactive power requirement effectively during grid faults and sudden load switching OFF conditions [4,5].…”

“…A real time implementation of VSI based STATCOM is investigated and its efficacy in improving transient voltage stability is discussed [8]. [13][14][15][16][17] discussed about STATCOM modelling using fuzzy logic, neural networks, PSO rather than conventional PI controllers to enhance power quality at PCC. Coordinated control of DFIG using annealing optimization is proposed for controlling DFIG where GSC was used as STATCOM to compensate for reactive power [13].…”