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Grid emergency power support method employing cooperation of multiple pumped-storage power stations

A pumped-storage power station, emergency support technology, applied in information technology support systems, instruments, data processing applications, etc., can solve problems such as power loss in power grids

Active Publication Date: 2015-02-04
EAST CHINA GRID +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] No collaborative optimization control method has been found to provide frequency restoration for the power loss of the power grid under the full working conditions of multi-pumped storage power plants

Method used

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  • Grid emergency power support method employing cooperation of multiple pumped-storage power stations
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  • Grid emergency power support method employing cooperation of multiple pumped-storage power stations

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Embodiment Construction

[0033] The specific implementation manner of the present invention will be described in more detail below with reference to schematic diagrams. Advantages and features of the present invention will be apparent from the following description and claims. It should be noted that all the drawings are in a very simplified form and use imprecise scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

[0034] The multi-pumped storage emergency power support control system mainly includes a collaborative optimization control system on the main station side and a group control support system on the pumped storage power station side. The group control support system of the pumped-storage power station is modified on the group control system to realize real-time reporting to the master station of the power grid dispatching control center of the supportable capacity, power station status, and quick response to remot...

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Abstract

The invention provides a grid emergency power support method employing cooperation of multiple pumped-storage power stations. The grid emergency power support method includes starting emergency support according to an emergency support starting preparation command, an emergency support starting command and an emergency support target power command which are issued by a main station to the power stations; implementing the emergency support, to be specific, according to a load planning curve and the emergency support target power command, a power station grouping controlling system starts and stops the units and regulates the load; quitting the emergency support, to be specific, the main station issues an emergency support quitting starting command to the power stations, and the power stations start and stop the units and control the load; in the case that the emergency support target power reduces to 0, the main station issues an emergency support quitting completion command, and the emergency support process is finished. The grid emergency power support method has the advantages that based on the emergency reserve capability and the local grouping controlling functions of the pumped-storage power stations, the remote automatic pump cutting and filling function and the automatic generator unit starting function are achieved, the emergency support power is provided, and the grid frequency is restored.

Description

technical field [0001] The invention relates to the technical field of power system scheduling operation and control, in particular to a power grid emergency power support control method coordinated by multiple pumped storage power stations. Background technique [0002] With the development of transmission technology and the construction of UHV power grids, large-scale receiving-end power grids in the region receive high-power power through multi-circuit AC-DC UHV lines. The transmission capacity of a single transmission line is increasing, making the operation structure of the power grid increasingly complex. The risk of safe and stable operation is also increasing. Grid frequency is one of the important signs of stable operation of the grid. How to quickly provide emergency power support and realize frequency recovery when the regional grid suffers from a large power loss, so as to avoid large-scale grid cascading accidents and ensure the high-quality and stable operation...

Claims

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Application Information

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IPC IPC(8): G06Q10/04G06Q50/06
CPCG06Q10/06312G06Q50/06Y04S10/50
Inventor 励刚周毅高伏英何星毕晓亮李维方兴其徐昊秦康平顾丽鸿
Owner EAST CHINA GRID
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