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Two-stage power grid cooperative safety correction method and device, electronic equipment and storage medium

A correction method and power grid technology, applied in the direction of circuit devices, single-network parallel feeding arrangement, emergency treatment AC circuit arrangement, etc., can solve the problems that the two-level power grid is difficult to achieve coordinated and safe operation, and realize the coordinated safety correction of the two-level power grid Effect

Pending Publication Date: 2022-05-10
CHINA ELECTRIC POWER RES INST +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method, device, electronic equipment and storage medium for two-level power grid coordinated safety correction, so as to solve the technical problem that the existing two-level power grid is difficult to achieve coordinated safe operation

Method used

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  • Two-stage power grid cooperative safety correction method and device, electronic equipment and storage medium
  • Two-stage power grid cooperative safety correction method and device, electronic equipment and storage medium
  • Two-stage power grid cooperative safety correction method and device, electronic equipment and storage medium

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Embodiment 1

[0058] see figure 1 As shown, the present invention provides a two-level power grid collaborative safety correction method, the two-level power grid includes a higher-level power grid and a lower-level power grid, and the upper-level power grid and lower-level power grid can be a regional power grid and a provincial power grid, or other upper and lower power grids; In this embodiment, the regional power grid is used as an upper-level power grid, and the provincial power grid is used as an example to describe the lower-level power grid; specifically, it includes:

[0059] S1: Determine the inter-provincial contact line plan based on inter-provincial transactions, clear the provincial market with the contact line plan as the boundary, and obtain the clearing results of the provincial market;

[0060] S2: Regional scheduling obtains the market clearing results of each province in the region, and obtains the power flow of the entire network according to the pre-planned output of e...

Embodiment 2

[0101] see figure 2 As shown, the present invention also provides a two-level power grid coordinated security correction device, including:

[0102] Pre-clearing module for lower-level power grid X 1 ~X n Inter-transactions determine the connection line plan between the lower-level grids, use the tie-line plan as the boundary to clear the market in the lower-level grid, and obtain each lower-level grid X 1 ~X n Pre-clearing results in the domestic market;

[0103] Calibration and correction module, used for each lower-level power grid X 1 ~X n According to the pre-planned output of each unit in the market pre-clearing results, the network-wide power flow of the upper-level power grid Y is obtained; according to the overall network power flow of the upper-level power grid Y, a safety check is performed to determine whether there is a line exceeding the limit; if no line exceeds the limit, the safety The check is over; if any line exceeds the limit, adjust the limit throu...

Embodiment 3

[0129] see image 3 As shown, the present invention also provides an electronic device 100 for a two-level power grid coordinated security correction method; the electronic device 100 includes a memory 101, at least one processor 102, stored in the memory 101 and can be used in the at least one A computer program 103 running on the processor 102 and at least one communication bus 104 .

[0130] The memory 101 can be used to store the computer program 103, and the processor 102 realizes any one of the above-described in Embodiment 1 by running or executing the computer program stored in the memory 101 and calling the data stored in the memory 101. The method steps of the two-level power grid coordinated security correction method. The memory 101 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, at least one application program required by a function (such as a sound playback function, an image pla...

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Abstract

The invention belongs to the technical field of power grid safety, and discloses a two-stage power grid collaborative safety correction method and device, electronic equipment and a storage medium. The method comprises the following steps: determining a tie line plan between lower-level power grids based on transactions between the lower-level power grids X1-Xn, clearing markets in the lower-level power grids by taking the tie line plan as a boundary, and obtaining market pre-clearing results in the lower-level power grids X1-Xn; according to the market pre-clearing result of each subordinate power grid X1-Xn, obtaining a whole-grid power flow; performing safety check according to the whole network power flow to judge whether a line is out of limit or not; if a line is out of limit, out-of-limit adjustment is carried out through a regional safety correction method, and the output of each unit after adjustment is obtained; and generating a security constraint set adjusted by the subordinate power grids X1-Xn, adding the security constraint set in the market clearing model for the power market of each subordinate power grid X1-Xn, and clearing again based on the adjusted output of each unit to complete the cooperative security correction of the two-stage power grids. The technical problem that an existing two-stage power grid is difficult to realize collaborative safe operation is solved.

Description

technical field [0001] The invention belongs to the technical field of power grid security, and in particular relates to a two-level power grid collaborative security correction method, device, electronic equipment and storage medium. Background technique [0002] With the continuous construction of UHV cross-regional provincial connection lines, the composition of inter-provincial connection lines is complicated, and the provincial market cannot obtain the clearing or output of the external network, and the accuracy of the power flow near the connection line cannot be guaranteed. Therefore, regional power grids are still required to accurately Network-wide security checks, and security corrections are made when the check finds that the limit is exceeded. However, with the large-scale construction of the provincial spot market, the modification of unit output needs to take into account the fairness of the market and the rationality of the clearing results. At present, the re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/06H02J3/00H02J3/46
CPCH02J3/06H02J3/004H02J3/466H02J3/001H02J2203/10H02J2203/20
Inventor 蔡帜於益军张翔宇王淼罗雅迪李理吕闫孙博黄海煜吴建斌齐慧文徐振波徐遐龄耿琳罗卫华路轶张国芳邹鹏丁强戴赛崔晖李宇轩黄国栋
Owner CHINA ELECTRIC POWER RES INST
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