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Grid cut-off control method, device, electronic device and storage medium

A control method and power grid technology, applied in circuit devices, power transmission AC networks, electrical components, etc., can solve problems such as the inability to meet the safe and stable operation of power grids, unreasonable distribution of power flow in the system, and improve safety and stability. Reasonable effect of current distribution

Active Publication Date: 2021-09-21
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a control method, device, electronic equipment and storage medium for power grid cut-off, which are used to solve the problem that the existing power grid cut-off method is unreasonable in power flow distribution after cut-off, and cannot satisfy the problem of safe and stable operation of the power grid

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  • Grid cut-off control method, device, electronic device and storage medium
  • Grid cut-off control method, device, electronic device and storage medium
  • Grid cut-off control method, device, electronic device and storage medium

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Embodiment Construction

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0040] figure 1 It is a schematic flow chart of a method for controlling power grid shutdown provided by an embodiment of the present invention. like figure 1 As shown, the method includes:

[0041] Step 101, based on the DC output power of the grid, determine the total power generation reduction of the grid;

[0042] Specifically, the power g...

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Abstract

Embodiments of the present invention provide a power grid cut-off control method, device, electronic equipment, and storage medium, wherein the method includes: determining the total power generation reduction of the power grid based on the DC output power of the power grid; based on the power generation reduction total amount, Each branch connected to each node in the power grid, and the active power flow of each branch, retrogradely track the source generator corresponding to the DC output power, and obtain the power generation reduction of each source generator; based on each source The power generation reduction of the generator is performed, and the power grid is cut. The method, device, electronic equipment and storage medium provided by the embodiments of the present invention are simple and practical, which ensures a reasonable power flow distribution of the system after the machine is switched off, and improves the safety and stability of the power grid operation.

Description

technical field [0001] The invention relates to the field of electric power system control, in particular to a control method, device, electronic equipment and storage medium for power grid cut-off. Background technique [0002] With the development of large-capacity long-distance direct current transmission technology, the number of power grids that send power through direct current is increasing. During the operation of these power grids, once the unipolar or bipolar blocking occurs in the output DC, a large amount of power surplus will appear in the system. If no effective control measures are taken, serious high-frequency problems will occur, and the system will not be able to operate safely or even a power outage will occur. . [0003] In the prior art, when a unipolar or bipolar blocking fault occurs in the DC sending grid, it is usually necessary to cut off part of the generating units of the sending grid to keep the system stable. If the cut-off unit is not selecte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/00H02J3/06H02J3/36
CPCH02J3/00H02J3/06H02J3/36Y02E60/60
Inventor 李佳伦
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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