Integrated coordinating control method for security stabilization early warning, preventing control and emergency control

An emergency control, safe and stable technology, applied in emergency protection circuit devices, electrical components, electrical digital data processing and other directions, can solve the problem of no search strategy, no quantitative index sensitivity analysis technology, etc., to improve safety and economy. Effect

Active Publication Date: 2009-01-07
NARI TECH CO LTD +1
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Problems solved by technology

If there are many types and numbers of measures to choose from, but there are no reliable quantitative indicators and related sensitivity analysis techniques, or there is no effective search strategy, then even if the control strategy is optimized only for a single fault in a single working condition, it will be difficult. not easy

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  • Integrated coordinating control method for security stabilization early warning, preventing control and emergency control
  • Integrated coordinating control method for security stabilization early warning, preventing control and emergency control
  • Integrated coordinating control method for security stabilization early warning, preventing control and emergency control

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Embodiment Construction

[0033] 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.

[0034]The integrated coordinated control method of large power grid safety and stability early warning, preventive control and emergency control of the present invention comprises the following steps:

[0035] 1) Summarize all kinds of steady-state and dynamic data of the large power grid collected by the data acquisition system, and provide them for stability analysis and calculation through data integration;

[0036] 2) Utilize the self-learning ability of the system to match the current mode and historical serious fault forms in real time, and use it as an online additional fault for stability analysis and calculation;

[0037] 3) Use the extended equal area method to mine the curve data after power grid simulation, extract the quantitative characteristics of system stability, includi...

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Abstract

The invention relates to an integration coordination control method of the early security and stability warning, prevention and control and emergency control of large power grids and includes the following steps: various steady data and dynamic data of large power grids are gathered; the present modes are matched with serious historical fault forms in real time as the online appending presupposition fault of stable analytic calculation; the curve data is mined with area methods such as expansion after the power grid is simulated to extract the stable quantitative characteristics of a system; when the power grid has positive secure stability margins, the stability margins and relevant sensitivity analysis technology are used for calculating the limit output and load of a generator and the limit power of a stability section; when the power grid has negative secure stability margins, the prevention and control and emergency control are calculated to confirm the amount of prevention and control measures and control cost thereof as well as the amount of emergency control measures and control cost thereof; the optimum combination of the prevention and control and emergency control are automatically searched. The integration framework of the optimization and coordination of the early security and stability warning, prevention and control and emergency control is built.

Description

technical field [0001] The invention relates to an integrated coordinated control method for safety and stability early warning, preventive control and emergency control of a large power grid, belonging to the technical field of power systems. Background technique [0002] For a long time, research on power grid security and stability early warning and decision support has been limited to simple security and stability assessment, analysis and early warning functions, or added preventive control functions on the basis of early warning, or regional emergency control functions realized in local power grids, security and stability early warning, Research on preventive control and emergency control lacks unity, optimization and coordination. In particular, preventive control and emergency control have been studied separately. On the one hand, for serious events with low probability, preventive control is not reasonable or even feasible; on the other hand, the cost of emergency c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H7/00H02H7/26G06F17/00G06Q50/00G06Q50/06
Inventor 薛禹胜马苏龙徐泰山刘华伟许剑冰李海峰
Owner NARI TECH CO LTD
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