Abstract: This paper proposes a STATCOM control structure with capability to coordinate the control between the positive and the negative sequence of the grid voltage. The positive-sequence voltage compensation leads to an increased voltage stability of the wind farm and the negative sequence voltage compensation leads to reduction of torque ripple, increasing the life time of the generator drive train. In the damping of the torque ripple of the generators, the STATCOM control is more effective. It provides fast response, flexible voltage control for power quality improvement regulates voltage and improves dynamic stability and voltage stability. This paper uses d-q theory for reference compensation current generation and space vector pulse width modulation (SVPWM) for gate signal generation. The results are validated by simulating the fixed speed Induction Generator (FSIG) based wind farm with STATCOM control in MATLAB/SIMULINK environment.
Keywords: Statcom, wind farm, d-q theory, SVPWM, fixed speed induction generator.
Title: STATCOM Control under Asymmetrical Grid Faults at FSIG-Based Wind Farms
Author: D.Manasa, M.GopiSivaPrasad, G.Jayakrishna
International Journal of Electrical and Electronics Research
ISSN 2348-6988 (online)
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