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Large power grid oriented parallel real-time database master and slave switching management system

An active-standby switching and management system technology, applied in the field of parallel real-time database active-standby switching management systems, can solve problems such as frequent active-standby switching, and achieve the effect of improving data operation performance and ensuring sequentiality

Active Publication Date: 2013-04-17
CHINA ELECTRIC POWER RES INST +2
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

Some applications need to access the master node, while others need to access the slave node. Therefore, in practical applications, master-standby switchover is very frequent

Method used

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  • Large power grid oriented parallel real-time database master and slave switching management system
  • Large power grid oriented parallel real-time database master and slave switching management system
  • Large power grid oriented parallel real-time database master and slave switching management system

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Embodiment Construction

[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0023] like figure 1 and figure 2 , providing a parallel real-time database active-standby switching management system for large power grids, the parallel database includes N real-time databases communicating through the network, the real-time database includes a real-time database master node and a real-time database standby node, and the real-time database The master node and the standby node of the real-time database constitute a master-standby pair; the system includes

[0024] The main module is selected, which is used to select the main node of the real-time database;

[0025] An active / standby switching module, configured to switch between a real-time database primary node and a real-time database standby node; and

[0026] The synchronization module is used to synchronize the information on the master node of the real-time database to the local no...

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Abstract

The invention provides a large power grid oriented parallel real-time database master and slave switching management system which comprises a master selecting module, a master and slave switching module and a synchronization module, wherein the master selecting module is used for selecting master nodes of a real-time database, the master and slave switching module is used for switching the master nodes and slave nodes of the real-time database, and the synchronization module is used for synchronizing information on the master nodes of the real-time database to local nodes. By the aid of the large power grid oriented parallel real-time database master and slave switching management system, based on guarantee of concurrent response of the parallel real-time database, the master nodes and the slave nodes are correctly switched, and the requirements of application services are met.

Description

technical field [0001] The invention belongs to the technical field of electric power system control, and in particular relates to a parallel real-time database active-standby switching management system for large power grids. Background technique [0002] In the existing power dispatching technical support system, a real-time database is used to store and manage real-time data such as remote measurement and remote signaling. With the development of the power grid, the amount of real-time measurement data continues to increase, and the efficiency and storage bottlenecks of the real-time database used in the existing dispatch automation system are becoming more and more significant. [0003] In order to solve the above problems, the distributed parallel real-time library came into being. The distributed parallel real-time database is composed of multiple nodes, which provide services at the same time and provide very powerful support for high concurrent access. [0004] How...

Claims

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Application Information

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IPC IPC(8): G06F17/30H04L29/08
Inventor 孙其强李立新狄方春黄文英任晓辉林静怀江凡谢巧云花静闫湖黄运豪季知祥袁荣昌李大鹏王威
Owner CHINA ELECTRIC POWER RES INST
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