Urban power distribution network power supply capacity potential tapping method based on line load recombination

Abstract

The invention discloses an urban power distribution network power supply capacity potential tapping method based on line load recombination, and relates to the field of power distribution. At present,measures for improving the power supply capacity of the urban power distribution network are usually newly building or changing interconnection switches and newly building lines, and the method aggravates the problems that the utilization rate of existing power grid equipment is generally low and a large number of pipeline resources are occupied in the power consumption valley period. The methodcomprises the following steps: 1, acquiring historical load data of a looped network line of an area to be optimized; 2, screening a potential target line; 3, determining a topological relation of a target line; 4, acquiring distribution transformer load historical data; 5, grouping and associating load data; 6, carrying out recombination optimization, and calculating comprehensive indexes of a recombination scheme; and 7, comparing the potential tapping index values of the recombination schemes to generate transformation candidate schemes. According to the technical scheme, the load distribution points of the bus and the interval on the line are optimized and recombined, the load peak value and volatility of the line are reduced by utilizing load peak shifting complementation equilibriumoptimization, and the available power supply capacity of the power distribution network is improved.

Description

technical field [0001] The invention relates to the field of power distribution of a power grid, in particular to a method for tapping the power supply capacity of an urban power distribution network based on line load recombination. Background technique [0002] As the end of the entire power network, the distribution network has the closest connection with users, and the distribution network is a very important part of the power network. With the rapid development of social economy and urban scale, the growth of urban electricity consumption has accelerated significantly, and the demand for access to various types of business expansion users has continued to rise. The existing distribution network cannot fully meet the needs of user access. In some economic growth hot spots The problem of insufficient power supply capacity of the distribution network is particularly prominent. [0003] At present, the measures to improve the power supply capacity of the urban distribution...

AI Technical Summary

Problems solved by technology

With the rapid development of social economy and urban scale, the growth of urban electricity consumption has accelerated significantly, and the demand for access to various types of business expansion users has continued to rise. The existing distribution network cannot fully meet the needs of user access. In some economic growth hot spots The problem of insufficient power supply capacity of the distribution network is particularly prominent

[0003]At present, measures to improve the power supply capacity of urban distribution networks are usually mainly to build or change contact switches and new lines to improve the network structure of the distribution network, so as to achieve increased For the purpose of large power supply capacity, although this type of method meets the requirements of the distribution network for the line load rate margin, it exacerbates the existing problems of low power grid equipment utilization and the occupation of a large number of pipeline resources. Caused the phenomenon of low return on investment in power grid construction and waste of investment in power grid construction

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