Control of Wind Farm Clusters

This chapter introduces the active power control requirements of wind power, and the active power control and automatic generation control (AGC) of wind farm clusters. It also describes the impact of wind power on system voltage stability and the three‐level voltage control of wind farm clusters. The active power control of wind farm clusters is a key technology for the controllable operation of wind farms. Automatic voltage control (AVC) is a part of the automation of electric network management. It tracks and regulates, in real time, the reactive power of generators, adjusts the reactive compensation equipment and the on‐load tap changer (OLTC) of transformers, controls effectively the reactive power flow of regional grids, and improves electricity supply of the grid. By coordination of the wind farm cluster, wind farm groups, and wind farms, a wind farm cluster is able to provide AGC and AVC services.