Research on the Influences of Reactive Power Fluctuation of Wind Farm on the System Voltage Stability

Abstract

Abstract. The connection of wind farm causes influence on the power system voltage stability because of the volatility and intermittency of wind power. In this paper, based on researching a regional wind farm, the influence of power fluctuation on power system voltage is analyzed. The influences of different settings of manual (mechanical) switched capacitor, SVC and STATCOM to the improving of power grid voltage are analyzed by PSCAD. Meanwhile, the improvement effects of the power grid voltages with different reactive power compensation devices are calculated by contrasting the curves of bus voltage volatilities during the increasing of wind power from 0 to 100% with different conditions.