A Method for Optimizing Power Supply Range of Substation Adapting to Seasonal Load Variation

Abstract

The invention discloses a transformer station power supply range optimization method suitable for seasonal changes of loads, and the method enables the positions of transformers to serve as discrete cell points, and a Voronoi spatial pattern is generated through a simulation cell growth method. Moreover, transformer load level multi-load scene security constraint check is added in a growing process of each cell, and the method avoids the overloading caused by a condition that a transformer station cannot adapt to the seasonal changes of loads while reducing the largest power supply range and reducing the network loss and voltage drop loss. The method comprises the following steps: (1), simulating the growth of cells; (2), carrying out the multi-load scene security constraint check; (3), arranging a power supply range. The method guarantees that the transformer station is not overloaded during Spring Festival through the setting of the growing speed of the cells and the multi-load scene security constraint check mechanism while the power supply load moment of the transformer station is reduced as much as possible at ordinary time. The method is small in investment, is simple in operation and maintenance, is stable in supply region, and is suitable for all urban and rural regions.

Description

technical field [0001] The invention relates to a method for optimizing the power supply range of a substation adapting to seasonal load changes, and belongs to the technical field of substation power supply. Background technique [0002] There are many mountainous lakes in rural areas, scattered residents, long power supply distances for rural power grids, high tortuous paths, and severe low voltage problems in remote areas. In addition, due to the custom of returning home during the Spring Festival, the peak-to-valley load difference in rural areas is large, resulting in more prominent contradictions between light loads in substations and heavy loads during the Spring Festival. At present, my country is in a period of rapid development of new urbanization construction, and the living standards of residents have been greatly improved. The main contradiction is the higher requirements of users for power supply capacity and voltage quality of the power grid, and the high cost...

AI Technical Summary

Problems solved by technology

In addition, due to the custom of returning home during the Spring Festival, the peak-to-valley load difference in rural areas is large, resulting in more prominent contradictions between light loads in substations and heavy loads during the Spring Festival.

At present, my country is in a period of rapid development of new urbanization construction, and the living standards of residents have been greatly improved. The main contradiction is the higher requirements of users for power supply capacity and voltage quality of the power grid, and the high cost of rural power grid transformation and low investment returns.

Images