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Historical data service system used for smart power grid dispatching control system

A historical data and service system technology, which is applied in the field of historical data service optimization control and intelligent scheduling control, can solve the problems of lack of stable and efficient data query mechanism in historical data service, lack of real-time monitoring mechanism of database session status, etc., to improve service stability performance, improve hit rate, and improve query efficiency

Inactive Publication Date: 2016-07-06
CENT CHINA BRANCH OF STATE GRID CORP OF CHINA
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Problems solved by technology

The historical data service mainly has the following problems: in the face of massive historical data, the historical data service lacks a stable and efficient data query mechanism; when the application of the D5000 system accesses historical data, it lacks a real-time monitoring mechanism for database session status
[0006] In the D5000 system, the existing historical data service is difficult to solve all the above problems. It is necessary to propose an efficient and stable historical data service system to meet the fast query request of massive historical data and reduce the load of relational database

Method used

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  • Historical data service system used for smart power grid dispatching control system
  • Historical data service system used for smart power grid dispatching control system
  • Historical data service system used for smart power grid dispatching control system

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Embodiment Construction

[0034] The historical data service system in the scheduling control of the smart grid of the present invention is composed of three parts: a management control module, a data buffer area module, and a relationship library interaction module. The management control module receives client requests, analyzes protocols, assigns tasks, and responds to requests; the data buffer module caches hotspot data, provides hotspot data query and modification functions, and manages power grid hotspot data through the LRU-2 replacement algorithm; relational library interaction module Provide a relational database data interaction interface, process data requests from the management control module and buffer module, monitor the relational database session status, and provide a session exception alarm push function. The optimized historical data service structure is as follows: figure 1 shown.

[0035] The management control module is the central module of the historical data service, and it is...

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Abstract

The invention discloses a historical data service system used for a smart power grid dispatching control system, and inquires historical data on the basis of a cache management mechanism and a historical library access monitoring mechanism. The historical data service system comprises a management control module, a data cache region module and a relational database interaction module, wherein the management control module consists of a curve template and a task distributor module; the data cache region module consists of a data cache region, a data index table, a cache data synchronization module and a data point replacement algorithm module; and the relational database interaction module consists of a data interaction module and a dialogue monitoring module. The historical data service system adopts a historical data cache management mechanism to improve service query efficiency and lighten relational database load. A database dialogue monitoring mechanism is adopted to improve service stability.

Description

technical field [0001] The invention relates to the field of intelligent dispatching control, in particular to the field of optimization control of historical data service in dispatching control of smart grid. Background technique [0002] In the smart grid dispatching control system (referred to as "D5000 system"), the historical data of a large number of equipment such as the voltage value and frequency value of the busbar, the active value, reactive value, and current value of the AC line segment endpoint, transformer winding, circuit breaker, etc. Values ​​are provided by the historical data service, and then the historical data changes are displayed in the form of curves or tables, which is convenient for dispatchers to monitor the operation status of the power grid intuitively. [0003] With the rapid development and expansion of the power grid, the power grid dispatching control system records more comprehensive power equipment status, resulting in a continuous increa...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30G06Q50/06
CPCG06F16/2365G06F16/284G06Q50/06
Inventor 汤卫东于宏文王健李军良马志斌汪洋郑春伟肖小刚于文娟谈林涛蒋国栋徐建航李阳董世江
Owner CENT CHINA BRANCH OF STATE GRID CORP OF CHINA
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