Voltage and Reactive Power Partitioning of Power System Considering the High-Penetration Wind-Solar Power Supply

With the access of high-penetration wind-solar power supply, the voltage adjustment of the power system is becoming more and more difficult. A reasonable and effective system reactive voltage partitioning scheme is an important prerequisite for ensuring the safe operation of the power grid. Based on this, this article proposes a mixed integer linear programming model that improves clique percolation, which can quickly partition the voltage and reactive power of the system. Firstly, the quality function of the reactive partition is proposed as the partition indicator, and the minimum reactive power adjustment as the objective function; Secondly, in response to the shortcomings of the clique percolation algorithm that cannot be divided into separate nodes outside the clique, this paper proposed a mixed integer linear programming(MILP) model based on clique definition, so that the nodes in the system can be effectively divided; Meanwhile, in order to speed up the solution, the system is simplified to use the principle of simplification of topology. Finally, the IEEE 39 and 118 bus systems are simulated to verify the effectiveness of the proposed method.