Optimal operation method of power grid based on distribution network block theory

Abstract

The invention relates to a distribution network blocking theory based power grid optimized operation method. The distribution network blocking theory based power grid optimized operation method is characterized by including the steps: numbering each node and each switch in a distribution network according to practical situations of a power grid and forming an initial number scheme; putting forward a 'distribution network blocking' theory and blocking the network on the basis so as to obtain a comprehensive information database of the distribution network; generating an alternative topological scheme set; subjecting generated schemes to feasibility check; subjecting blocked equivalent networks to data preprocessing; computing comprehensive evaluation indexes to comprehensively evaluate a reconstructed scheme, putting forward technical indexes to quantify reliability and economy of specific partitions, proposing a loss reducing decision scheme aiming at a typical section on account of the distribution network in operation, and providing relevant decision bases for scheduling operation. The distribution network blocking theory based power grid optimized operation method has the advantages of scientificity, reasonability, high reliability, good economy, high practicality and the like.

Description

Technical field [0001] The invention relates to the field of power grid distribution network, and is a power grid optimized operation method based on the theory of distribution network block. Background technique [0002] With the development of the national economy and the improvement of people's living standards, people have put forward higher and higher requirements for the reliability, safety and economy of the power distribution system. The analysis and optimization of distribution network has become one of the hot spots in power system research. The operation of the distribution network means that all links that make up the distribution network system are in a state of performing their functions. In the distribution network, various power equipment is adjusted to change the operation status of the distribution network to realize the optimized operation of the distribution network, which is called the optimization of the operation mode of the distribution network. In the r...

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Problems solved by technology

[0004] The purpose of the present invention is to solve two problems: one is that there are fewer handle switches in the distribution network, fewer switches, fewer reconfiguration schemes, and a single operation mode, which cannot improve the reliability and flexibility of the distribution network operation, and cannot achieve optimization The purpose of operation; the second is that there are many sub-networks with unreasonable load distribution, which will increase the line network loss and cannot achieve the goal of economical operation of the distribution network. In order to overcome the above two points, this project proposes a scientific Reasonable, reliable, economical, and practical grid optimization operation method based on distribution network block theory

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