Simulation Study on Power Grid Zoning Based on Mutual Supply Capacity Index

The purpose of power grid partitioning and mutual supply is to achieve the maximum improvement of power supply capacity and quality under reasonable investment conditions. Traditional AC power grid partitioning methods cannot achieve a balance between many demands. This article proposes an evaluation method for the cross section mutual supply capacity of multi-DC fed power grid partitioning schemes, analyses the main factors affecting the cross section mutual supply capacity, considers the influence of power flow transfer ratio and line load rate, and evaluates the advantages and disadvantages of the cross section mutual supply scheme in the power grid. The partition scheme obtained by applying this method can effectively enhance the mutual supply capacity of partitions through the application of flexible partition technology, providing reference for power grid operation and planning. The simulation calculation for the actual power grid has confirmed the effectiveness of this method, the method can provide reference for later practical applications.