Research on reactive power/voltage control partitioning of power system with DFIG wind farm considering Q capability of wind farm

Reasonable and effective partition is the premise to realize regional reactive power/voltage control. In this paper, the P-Q capacity curve of doubly fed induction generator (DFIG) wind farm was analyzed, and the reactive power/voltage control partitioning model of power system with wind farm was created considering both region electrical distance and static reactive power balance. For reactive power/voltage control partitioning of power system with wind farm, a comprehensive treatment method was presented and tested on New-England 39 bus system to verify its effectiveness. In the partitioning process, the concept of load controlled space was introduced, reactive power source nodes were firstly clustered, and load nodes were then classified in the second stage, effectively solving the connectivity problem caused by coupling of active power and reactive power output of wind farm. © 2019, Editorial Board of Acta Energiae Solaris Sinica. All right reserved.