Research on Reactive Power Compensation Strategy Based on Time Series Method in Wind Farms

摘要

This paper presents a strategy to make reactive compensation scheme in wind farms, combing wind power prediction with voltage and reactive power integrated control. Firstly, the wind power can be predicted by using ARIMA model. Secondly, the latter two can be calculated since there is a relationship among active power, reactive power and voltage. Therefore, the reactive compensation scheme can be made according to the voltage variation tendency. Being verified with simulation, the scheme can not only solve the problem of capacitor banks being frequently switched, but also make up for the lacks of capacitors by using SVG to ensure the stability of the bus voltage.