Geomagnetically induced current GIC prediction method for power station

A technology of geomagnetic induction current and power plants, applied in the field of electric power, can solve problems such as inability to prevent disasters

Pending Publication Date: 2020-08-07
STATE GRID EAST INNER MONGOLIA ELECTRIC POWER CO LTD MAINTENANCE BRANCH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

There have been research reports on the prediction method of power grid GIC, but they are all based on the physical method or statistical method of historical geomagnetic storm data, and the prediction method based on historical data cannot be used for disaster prevention.

Method used

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  • Geomagnetically induced current GIC prediction method for power station
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  • Geomagnetically induced current GIC prediction method for power station

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Embodiment Construction

[0012] A specific embodiment of the method for predicting the geomagnetic induction current GIC of a power plant according to the present invention will be described in detail below in conjunction with the accompanying drawings.

[0013] figure 1 It is a flowchart of the GIC prediction method of the present invention.

[0014] The main content of step 1 is to realize the prediction of geomagnetic storm and geomagnetic disturbance data one hour in advance according to the solar wind parameters of the ACE satellite located at the solar-terrestrial gravitational balance point L1, combined with the BP neural network model. BP neural network is a multi-layer feed-forward network trained by error backpropagation algorithm, which can approximate any nonlinear function. Taking the Eastern Mongolia Power Grid as an example, the geomagnetic station closest to the Eastern Mongolia Power Grid and able to obtain geomagnetic disturbance data is the Beijing Geomagnetic Station. Therefore, a...

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Abstract

The invention discloses a geomagnetically induced current GIC prediction method for a power station. ACE satellite solar wind real-time parameters located at a sun-earth gravity balance point L1 are adopted, through a BP neural network model, the geomagnetic storm geomagnetic disturbance data can be predicted one hour in advance, then the high-risk plant station GIC calculation model is combined,the power grid high-risk plant station GIC quantity value can be rapidly predicted one hour in advance in real time, and an important reference basis can be provided for an electric power system operation scheduling and overhaul maintenance department to formulate geomagnetic storm disaster prevention and reduction strategies.

Description

technical field [0001] The invention belongs to the field of electric power, and in particular relates to a prediction method for geomagnetic induction current GIC used in power plants, and used for prevention and mitigation of geomagnetic storm power grid accidents. Background technique [0002] Changes in the Earth's magnetic field caused by solar activity are called geomagnetic storms. The geomagnetically induced currents (GIC) induced by geomagnetic storms in the power grid will pose a threat to the safe and stable operation of the power grid. With the construction and development of my country's future power grid, GIC will bring more and more risks to the safe and stable operation of the power grid. Predicting the GIC of high-risk power stations in geomagnetic storm power grid accidents is an economical and effective means to avoid and mitigate geomagnetic storm power grid disasters. There have been research reports on the prediction methods of power grid GIC, but the...

Claims

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Application Information

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IPC IPC(8): G06Q10/04G06Q50/06H02J3/00G06N3/08
CPCG06Q10/04G06Q50/06H02J3/00G06N3/084H02J2203/20Y04S10/50
Inventor 刘文琳陈婉青刘连光
Owner STATE GRID EAST INNER MONGOLIA ELECTRIC POWER CO LTD MAINTENANCE BRANCH
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