Reactive Power Cooperative Optimization of Wind Farm with Various Reactive Power Compensation Devices

Multi-wind turbines interconnection is an effective method to solve the uncertainty problem, but at the same time, it also poses a challenge to the coordination of the output of various reactive power compensation devices in each wind farm. This paper presents a coordinated control strategy for multiple reactive power compensation devices in wind farm. Based on the power flow calculation model, the SPEA2 algorithm is used to solve the problem, considering the line loss, voltage drop, reactive power fluctuation and the minimum number of reactive power regulation. The simulation results show that the coordinated control strategy effectively reduces the fluctuation of wind farm and SVG reactive power output curve, and significantly alleviates voltage drop with minimal influence on line loss. In short, the coordinated control strategy of the multi-reactive compensation device optimizes the reactive power output of the system and has important practical significance.