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Power grid accident risk early warning method and device

A technology for early warning of risks and grid accidents, applied in the direction of circuit devices, electrical components, AC network circuits, etc., can solve problems such as inconformity with scheduling operations, ambiguity, etc.

Inactive Publication Date: 2017-03-22
TAIAN POWER SUPPLY CO OF STATE GRID SHANDONG ELECTRIC POWER CO +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the purpose of the present invention is to provide a power grid accident risk early warning method and device to alleviate certain risks to the safe operation of the power grid due to the ambiguity of the accident risk level and the scheduling operation that does not conform to the actual accident risk. technical issues

Method used

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  • Power grid accident risk early warning method and device
  • Power grid accident risk early warning method and device

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Experimental program
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Embodiment 1

[0062] figure 1 A flow chart of a method for early warning of a power grid accident risk provided by an embodiment of the present invention is shown. The method comprises the steps of:

[0063] Step S102, obtaining line information of each line in the simulated power grid, and selecting a target line from the line information;

[0064] Wherein, the above-mentioned simulated power grid is simulated in a manner corresponding to the predicted fault, and the target line is the line where the predicted fault is located.

[0065] Step S104, extracting the configuration data of the target line, searching the key equipment of the target line and the node information associated with the target line in the configuration data;

[0066] Step S106, search for the selected target line and the key equipment of the target line as the center, and establish an accident set;

[0067] Wherein, the accident set includes lines and nodes having the same nodes as the target line and the key equipm...

Embodiment 2

[0108] On the basis of the above embodiments, the embodiment of the present invention also provides a power grid accident risk early warning device, such as image 3 As shown, the device includes:

[0109] The target line selection module 30 is used to obtain the line information of each line in the simulated power grid, and select the target line from the line information; wherein, the simulated power grid is simulated in a manner corresponding to the expected fault, and the target line is the line where the expected fault is located;

[0110] The information search module 31 is used to extract the configuration data of the target line, and search the key equipment of the target line and the node information associated with the target line in the configuration data;

[0111] The accident set building module 32 is used to search for the selected target line and the key equipment of the target line as the center, and establish an accident set, wherein the accident set includes ...

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Abstract

The invention provides a power grid accident risk early warning method and device, and relates to the technical field of a smart power grid. The method comprises the steps of: acquiring line information of each line in a simulated power grid, and selecting a target line; extracting configuration data of the target line, and searching key equipment of the target line and node information associated with the target line; carrying out searching by using the selected target line and the key equipment as the center, and establishing an accident set; calculating a tidal current overload risk index and a voltage out-of-limit risk index of each line in the accident set and respectively comparing the tidal current overload risk index and the voltage out-of-limit risk index of each line with corresponding risk set ranges; and sending a comparison result of exceeding the corresponding risk set ranges to power grid monitoring personnel. According to the power grid accident risk early warning method and device provided by the invention, the lines and the nodes, which exceed the risk set ranges, can be sent to the power grid monitoring personnel, so that the power grid monitoring personnel determines a risk level of a power grid accident, so that operators are reasonably arranged to carry out a scheduling operation, and safe and stable operation of the power grid is ensured.

Description

technical field [0001] The invention relates to the technical field of smart grids, in particular to a method and device for early warning of grid accident risks. Background technique [0002] With the continuous development of the economy and the increasing demand for electricity, the scale of the power grid and the number of equipment are also increasing, which increases the tasks of infrastructure construction, technical transformation and maintenance of power grid equipment in the power system, and the operation mode of the power grid is becoming more and more complicated. On the one hand, it improves the operating efficiency of the power system, and on the other hand, it also increases the uncertainty of the power system operation. In the prior art, the grid dispatching work that cooperates with the grid maintenance, transformation and optimization has been formulated according to the development needs of the power system. Not only is it not conducive to the eliminatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00
CPCH02J3/00H02J2203/20
Inventor 李艳红李新明朱宗锋杨鑫蒋同香杜丽媛
Owner TAIAN POWER SUPPLY CO OF STATE GRID SHANDONG ELECTRIC POWER CO
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