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Distribution network blocking theory based power grid optimized operation method

A technology for optimizing operation and blocks, applied in the direction of AC network circuits, electrical components, circuit devices, etc., can solve problems such as few reconfiguration schemes, increase line network loss, single operation mode, etc., and achieve scientific, reasonable and practical methods Strong, highly reliable effect

Active Publication Date: 2014-10-29
STATE GRID CORP OF CHINA +1
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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

Method used

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  • Distribution network blocking theory based power grid optimized operation method
  • Distribution network blocking theory based power grid optimized operation method
  • Distribution network blocking theory based power grid optimized operation method

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Embodiment Construction

[0037] The present invention will be further described below using the accompanying drawings and examples.

[0038] refer to figure 1 , the grid optimization operation method based on distribution network block theory of the present invention, comprises the following steps:

[0039] 1) Formulate a preliminary numbering scheme, which is to number the power supply, lines, nodes and switch information of the distribution network system. refer to figure 2 The network shown includes three power points 1, 9 and 13, the total number of nodes is 15, and the number of switches is 7. In the switch state, the power distribution network operates radially, which conforms to the general operation mode of the distribution network.

[0040]2) Network block is to use the block theory of the distribution network to form an equivalent network composed of equivalent blocks and switches, that is, connect nodes together to form a block, and each block contains There are components such as lines...

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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 optimization operation method based on the distribution network block theory. Background technique [0002] With the development of the national economy and the improvement of people's living standards, people put forward higher and higher requirements for the reliability, safety and economy of power distribution systems. 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 the links that make up the distribution network system are in the state of performing their functions. In the distribution network, adjusting various power equipment, changing the operating state of the distribution network, and realizing the optimal operation of the distribution network is called the optimization of the distribution network operation mode. In the research on t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00
Inventor 张金波耿婧刘通杨镜非宋依群崔巍范胜斌高峰杨煦满宇彤
Owner STATE GRID CORP OF CHINA
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