Grid partition-based method for estimating remaining capacity of electric energy-substituted matched power grid

Abstract

The invention relates to a grid partition-based method for estimating remaining capacity of an electric energy-substituted matched power grid. According to the method, user grid division and functional grid partition are performed on the electric energy-substituted matched power grid, the remaining capacity of a 10KV layer surface of the electric energy-substituted matched power grid is analyzed and estimated according to electric energy-substituted load characteristic in a user grid, and the remaining capacity of a 110KV layer surface and a 35KV layer surface of the electric energy-substituted matched power grid is estimated by synthesizing a grid structure of a high-voltage power distribution network in a functional grid and the electric energy-substituted load type. By the design, the remaining capacity of the electric energy-substituted matched power grid can be accurately estimated in an omnibearing way, and the method is simple and practical.

Description

technical field [0001] The invention belongs to the field of electric energy replacement supporting grid planning, and in particular relates to a method for evaluating the surplus capacity of electric energy replacing supporting grid based on grid partitioning. Background technique [0002] In May 2016, eight national ministries and commissions jointly issued the "Guiding Opinions on Promoting Electric Energy Substitution" (Fagai Energy [2016] No. 1054) to promote a new energy consumption model of "replacing coal with electricity and oil with electricity". With the continuous deepening of the power substitution strategy, the lack of effective connection between the power grid construction and distribution network planning has gradually become prominent. Due to a large number of electric energy replacement projects with a short period from business expansion and installation to commissioning, the construction of electric energy replacement supporting grids is generally not in...

AI Technical Summary

Problems solved by technology

However, the existence of the following problems greatly increases the difficulty of surplus capacity assessment: 1) Electric energy replacement involves a wide range of fields and various technologies, and the load characteristics of various electric energy replacement equipment are very different. It will have different impacts on the power consumption structure, load characteristics, load curve and terminal power consumption mode of the supporting grid area; 2) Electric energy replacement supporting grid covers all levels of 110 kV, 35 kV and 10 kV, and its surplus Capacity assessment needs to comprehensively consider each voltage level

At present, there is no relevant literature at home and abroad to study this issue.

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