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Data monitoring method in electric network safe dynamic monitoring system

A dynamic security and monitoring system technology, applied in the direction of electrical digital data processing, memory systems, special data processing applications, etc., can solve the problem that the energy management system is difficult to meet the requirements, and achieve the effect of simple principle and convenient implementation

Inactive Publication Date: 2004-02-04
BEIJING SIFANG JIBAO AUTOMATION +1
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Since dynamic security analysis often needs to quickly obtain the data of each substation within the last 1 second at the same time, it is difficult for the energy management system to meet the requirements

Method used

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  • Data monitoring method in electric network safe dynamic monitoring system
  • Data monitoring method in electric network safe dynamic monitoring system
  • Data monitoring method in electric network safe dynamic monitoring system

Examples

Experimental program
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Embodiment Construction

[0016] figure 1 It is a schematic diagram of the real-time database structure of the present invention. Such as figure 1 As shown, the real-time database consists of two parts: the database header and the data area of ​​the phasor measuring device. The database header saves the basic configuration information of each phasor measurement device, such as the data of substations, the number, name, type and conversion unit of the data measured by each substation, etc. This part is generally not refreshed. The phasor measurement data area stores the real-time data of each phasor measurement device. It is a circular memory area indexed by the batch number. The data is stored one by one from the batch number 0, 1, 2... When the memory boundary of the data area is reached, the latest data covers the latest data. The old data is cyclically overwritten in turn.

[0017] The dynamic security monitoring of the power grid uses the synchrophasor measuring device as a substation, and the s...

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Abstract

The method incldues the following steps: writing in and fetching real-time data, using shared internal memory mode as internal memory of real-time databank and ensuring data uniformity by write / read lock; picking up real-time data locus and to directly pick up fetching data from databank for those high-level application which wants to obtain locus within front 1s, synchronizing the real-time data, picking up the real-time data from each phasor measuring storage zone in sequence as per lot number corresponding to this moment by the databank, using long integer as indexing to quickly locate stored position of the rea-time data.

Description

technical field [0001] The invention relates to the field of power system scheduling automation, in particular to a data processing method in the dynamic safety monitoring process. Background technique [0002] The power system dynamic security monitoring system is an emerging dispatching end application system. It is different from the existing energy management system. The former focuses on dynamic process monitoring, and the data processing time is less than 100ms, while the latter focuses on steady-state monitoring, and the data processing cycle is more than 500ms; the former requires The data must have its own time scale, and the time scale accuracy is not less than 1 microsecond. The latter only needs the latest data, and the requirements for the data time scale accuracy are not strict; both types of systems have real-time databases, and the former must save a period of time Real-time data, the latter only saves the latest real-time data, and the expired data is transf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/00G06F12/06G06F19/00
Inventor 王立鼎吴京涛张涛
Owner BEIJING SIFANG JIBAO AUTOMATION
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