Active Distribution Network Substation Planning Method Considering Complementation of Load Characteristic

Abstract

Different types of loads have different peak times for power consumption. Considering complementary of load timing characteristics scientifically can reduce the peak-to-valley load within the power supply range, reduce the substation capacity, and improve the economics of substation planning schemes. However, in the existing substation planning methods, the influence of complementary of load characteristics on the substation planning scheme has not been considered. To this end, a substation planning scheme that considers the load sequence characteristics is proposed. Firstly, with the goal of minimizing the cost of distribution network planning schemes, a substation planning model is established. Secondly, considering the complementarity of load characteristics, a substation power supply range method based on the improved Voronoi diagram is proposed, then an integrated solution method for the substation planning model is presented. Finally, the calculation example shows that considering the complementarity of load characteristics will slightly increase the construction cost of the line, but at the same time effectively reduce the investment and construction capacity of the substation, thereby improving the overall economy of the distribution network planning scheme.