Improving fault ride through capability of induction generator‐based wind farm using static compensator during asymmetrical faults

Abstract

The growing trend of using wind turbines makes challenges to supply safe power to the power system. In fact, the fault ride through (FRT) capability of wind turbines is a serious phenomenon in their safe operation. In this paper, a new control method is proposed to improve the capability of wind farms in asymmetrical fault conditions. This method is based on releasing computed reactive power by the static compensator (STATCOM) to the grid during the fault to overcome the deep voltage of the point of common coupling (PCC). Although there are many studies to control wind turbines in fault condition using STATCOM, the main strength point of this study is the appropriate performance of the proposed system in asymmetrical faults. This feature is operated and simulated on 14 Bus standard grid to investigate the appropriate operation of a wind farm in a real grid. Also, by controlling the reactive power, preventing deep voltage collapse is achieved during the fault. Also, the wind turbine, STATCOM, and their control systems are formulated, modeled, and simulated in MATLAB/Simulink environment.