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Method for judging missed transmission of monitoring alarm signal of transformer substation

A substation monitoring and alarm signal technology, applied in the direction of electrical components, circuit devices, information technology support systems, etc., can solve the time-consuming problems of missing signals, improve the level of safe operation, improve the level of automation and informatization, and improve accident handling effect of ability

Active Publication Date: 2021-07-09
STATE GRID JIANGSU ELECTRIC POWER CO LTD NANTONG POWER SUPPLY BRANCH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Moreover, the analysis of the missing signal after a fault requires experience accumulation, time-consuming work, and is of great significance to the safety of the power grid.

Method used

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  • Method for judging missed transmission of monitoring alarm signal of transformer substation
  • Method for judging missed transmission of monitoring alarm signal of transformer substation
  • Method for judging missed transmission of monitoring alarm signal of transformer substation

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Embodiment Construction

[0023] A method for judging a substation monitoring alarm signal leakage, comprising the following steps:

[0024] Step 1. Analysis of power grid connection mode and establishment of power grid operation mode model;

[0025] Step 2. Cross-identification of multi-dimensional power grid operation mode;

[0026] Step 3, extracting maintenance and debugging events;

[0027] Step 4, the fault trip model is established, and the fault trip event is extracted;

[0028] Step 5. Analysis of missing signals.

[0029] The concrete realization method of described step 1 is:

[0030] (1) Grid connection mode analysis model: According to the power grid topology, analyze the wiring mode of each voltage level in the power grid, the equipment at each position in the bay, and the connection relationship between the bays. The main wiring methods include: 3 / 2 wiring (with wire knife), 3 / 2 wiring, double busbar + bypass, inner bridge wiring, line transformer group (unit wiring), single busbar. ...

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Abstract

The invention discloses a method for judging missed transmission of a monitoring alarm signal of a transformer substation. The method comprises the following steps: 1, analyzing a power grid wiring mode, and establishing a power grid operation mode model; 2, carrying out multi-dimensional power grid operation mode cross identification; 3, extracting a maintenance debugging event; 4, establishing a fault tripping model, and extracting a fault tripping event; and 5, analyzing missed signals. According to the method, traditional artificial experience judgment is converted into computer automatic identification, timely and effective information is provided for monitoring personnel to analyze and process power grid accidents and evaluate after the accidents, the accident handling capacity is improved, the automation informatization level of the power grid and monitoring is improved, and the safe operation level of the power grid is improved.

Description

technical field [0001] The invention relates to a method for judging the leakage of substation monitoring and warning signals. Background technique [0002] With the integration of power grid regulation and control, while the automation level of the power grid is rapidly improving, the amount of information in the dispatch automation system is also increasing exponentially. A large amount of data is refreshed in real time, which makes it more and more difficult for dispatch and monitoring personnel to monitor the safety of the power grid. The existing dispatching automation system belongs to the "manual analysis type" dispatching mode, which requires the manual intervention of the controller to execute, the degree of automation and intelligence is low, and it is highly dependent on the initiative and ability of people. [0003] When a power grid trips due to a fault, a large number of signals are sent in a short period of time. The dispatching and monitoring personnel must r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H7/26H02H3/32G01R31/08H02J13/00
CPCH02H7/26H02H3/32G01R31/086H02J13/0004H02J13/00006Y04S40/12Y02E60/00
Inventor 李云鹏韩锋刘阳陆志平全思平许颖文
Owner STATE GRID JIANGSU ELECTRIC POWER CO LTD NANTONG POWER SUPPLY BRANCH