Centralized decision-making real time emergency control method for large electric network overloading

An emergency control, large power grid technology, applied in computer control, general control system, control/regulation system, etc., can solve the problems of no attempt algorithm application, practicality to be tested, etc., to achieve the effect of rapid action and accurate judgment

Inactive Publication Date: 2009-09-16
JIANGSU ELECTRIC POWER CO
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although a graph theory method is given in the literature to find transmission sections, its practicality needs to be tested in practice
In addition, this literature does not attempt to apply the algorithm to online real-time control

Method used

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  • Centralized decision-making real time emergency control method for large electric network overloading
  • Centralized decision-making real time emergency control method for large electric network overloading
  • Centralized decision-making real time emergency control method for large electric network overloading

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Embodiment Construction

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and examples. However, the invention is not limited to the examples given.

[0024] A real-time emergency control method for centralized decision-making of large power grid overload, the specific steps include:

[0025] (a) The host reads the real-time data of power grid operation from the energy management system and safety control device through the communication interface. The real-time data read from the energy management system includes: network parameters and topology, power flow results of state estimation, The injection volume of each node of the system; the real-time data read from the safety control device includes: optional control measures to solve the overload problem and measured power flow data such as lines, generators and loads;

[0026] (b) The main engine calculates an optimized emergency control scheme by using an algorithm based on optional c...

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Abstract

A power pool overload centralized decision-making real-time emergency control method, includes: the host computer reads in the operational real-time data of the electric network from the energy management system and the control device through the communication interface; the host computer computes the optimized emergency control project based on the algorithm of the elimination line of the optional control measurement of the generator and the load and the loading combination performance index of the transformer; the host computer sends down the control project to the control device through the communication interface, and realize the control project through the function of the control device. The invention makes full use of the energy management system and the control device, from the overall situation of the electric network, solves the centralized decision-making and the real-time emergency control of the overloading of the power pool, which has correct and reliable judgement to the overload, fast action and the chain failure of the single node action in the traditional technology is not present.

Description

technical field [0001] The invention relates to a real-time emergency control method of centralized decision-making for large power grid overload, which is used to solve the problem of overloading equipment such as lines or transformers during real-time operation of the large power grid, and belongs to the field of safety and stability analysis and control. Background technique [0002] The power grid is mainly composed of equipment such as lines or transformers. When the power grid is in normal operation, the current flowing through these devices is less than its rated current; however, when there are accidents or abnormalities in the power grid, some equipment will appear overloaded. , that is, the current flowing through it far exceeds the rated current. At this time, correct handling must be made in time, otherwise the equipment will be damaged due to heat. The traditional method is to cut off the overloaded line through the action of the line relay protection device. Ho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02H7/26H02H7/28G06Q50/00G05B15/02G06Q50/06
Inventor 刘华伟杨卫东李海峰孟昭军胡伟鲍颜红朱寰
Owner JIANGSU ELECTRIC POWER CO
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