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Operation regulation method of regional power grid based on 0-1 nonlinear integer programming

An integer programming and power grid operation technology, applied in electrical components, circuit devices, AC network circuits, etc., can solve problems such as low reliability and low efficiency, and achieve the effect of improving efficiency and improving computing efficiency.

Active Publication Date: 2020-12-22
CHENGDU POWER SUPPLY COMPANY OF STATE GRID SICHUAN ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is that at present, how to arrange the operation mode is manually determined, with low efficiency and low reliability. The purpose is to provide a regional-level power grid operation control method based on 0-1 nonlinear integer programming to solve the above problems

Method used

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  • Operation regulation method of regional power grid based on 0-1 nonlinear integer programming
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  • Operation regulation method of regional power grid based on 0-1 nonlinear integer programming

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Embodiment

[0023] Such as Figure 1~2 As shown, the present invention is based on the 0-1 nonlinear integer programming regional power grid operation control method, the specific steps are as follows: S1: the number N1 of 220kV substations, the number N2 of 110kV substations, the number N3 of 110kV virtual substations, then there are N1+N2+N3=N, Kij represents the connection branch between nodes i and j, 0 means no connection, 1 means connection, Kii=0 (i=1, 2, . . . , N). The N×N adjacency matrix A can be obtained from the power grid information. The adjacency matrix A is a symmetrical matrix, and the power supply path of the substation can be searched by using this matrix; S2: Input the number N1 of 220kV substations, and the number N2 of 110kV substations, and use the depth-first search algorithm Search the branches of the 110kV substation node, if the search node is not a 220kV substation node, mark the branch and continue searching until the 220kV substation node is found; S3: save ...

Embodiment 2

[0041] On the basis of this embodiment, a specific power grid power supply line is selected, and the improved ant colony algorithm is used to screen the mode control strategies of a city's power grid under the conditions of line maintenance and 220kV main transformer overload, in order to illustrate this The practical significance of the algorithm. The power grid information of a certain city comes from the PSASP comprehensive program.

[0042] If a given line is overhauled, all power paths to that line are unavailable. There are mainly two 110kV substations, Shengdeng and Fuqing Road, involved in a given line. When a given line is overhauled, there are two power supply paths for Shengdeng:

[0043] (1) Rongdong --> Rongfu Lantern T --> Shengdeng;

[0044] (2) Dongjiao --> Suburb Fudeng T --> Fuqing Road --> Rongfu Deng T --> Shengdeng.

[0045] There are only two power supply paths on Fuqing Road:

[0046] (1) Eastern Suburb ——> Suburb Fudeng T ——> Fuqing Road;

[0047] ...

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Abstract

The invention discloses a regional-level power grid operation regulation method based on 0-1 nonlinear integer programming. The method comprises the steps of (S1) setting the number of 220kV substations to be N1, the number of 110kV substations to be N2, and the number of 110kV virtual substations to be N3, wherein N1+N2+N3=N, Kij represents a connection branch of a node i and a node j, 0 is no connection, 1 is connection, Kii = 0 (i = 1, 2 to N), an N*N adjacency matrix A can be obtained from the grid information, the adjacency matrix A is a symmetric matrix, and a power supply path of a substation can be searched by using the matrix, (S2) inputting the number N1 of the 220kV substations and the number N2 of the 110kV substations, searching a 110kV substation node branch by using a depth-first search algorithm, marking the branch and continuing to search if a search node is not a 220kV substation node until the 220kV substation node is searched; and (S3) saving a search result and returning to search other branches of a previous node along an original search path and repeating continuously.

Description

technical field [0001] The invention relates to a power grid operation regulation method, in particular to a region-level power grid operation regulation method based on 0-1 nonlinear integer programming. Background technique [0002] As the power grid operation headquarters, the power control department plays a decisive role in the safe and reliable operation of the power grid. In addition to ensuring the real-time and stable operation of the power grid, the control center must also consider the development of the power grid and the increase in load demand to reasonably formulate the operation mode of the power grid under large and small loads in the future periods of high and low seasons. For a regional power grid, the mode arrangement mainly involves the arrangement of the daily maintenance plan, the arrangement of the automatic switching operation mode when the power grid fails, and the arrangement of the large and small load modes in the future peak and dry periods. At...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/00
CPCH02J3/00H02J2203/20
Inventor 郝文斌刘浩
Owner CHENGDU POWER SUPPLY COMPANY OF STATE GRID SICHUAN ELECTRIC POWER
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