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Intelligent transformer station secondary circuit state evaluation method based on physical quantity logical mapping

A smart substation and secondary circuit technology, applied in the direction of circuit devices, electrical components, information technology support systems, etc., to achieve strong applicability and improve difficult effects

Active Publication Date: 2018-08-28
STATE GRID ANHUI ELECTRIC POWER +1
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] At present, domestic and foreign protection equipment circuit status evaluation methods including intelligent stations often only analyze the physical link of the protection circuit.

Method used

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  • Intelligent transformer station secondary circuit state evaluation method based on physical quantity logical mapping
  • Intelligent transformer station secondary circuit state evaluation method based on physical quantity logical mapping
  • Intelligent transformer station secondary circuit state evaluation method based on physical quantity logical mapping

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0033] to combine figure 1 Shown, method of the present invention comprises the following specific steps:

[0034] Step 1. Calculate the communication semantics of the protection equipment in the smart substation

[0035] Assume that the input and output physical quantities (such as switch position, voltage value, current value, etc.) of the smart substation protection equipment constitute a physical quantity set V, and V={V 1 ,V 2 ,V 3 ,...,V n}express. The i-th physical quantity in the set is L i , 1≤i≤n, n is the sum of the input and output physical quantities of the protection equipment. The physical quantity can be obtained through the Inputs field of the SCD file (substation config...

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Abstract

The invention discloses an intelligent power station protection equipment loop state evaluation method based on physical quantity logical mapping, which solves the problem that the secondary loop of the intelligent substation protection equipment does not correspond to the physical communication link due to the GOOSE, SV communication mode and the physical communication link. A communication linkcorresponding to the relevant physical quantity is analyzed by using the SCD file and the extension structure thereof, and the physical quantity acquisition state is associated with the physical linkcommunication state, and the difficulty brought to operation and maintenance operations due to the fact that the intelligent substation protection equipment cannot directly observe the loop state is solved. The evaluation method has strong applicability.

Description

technical field [0001] The invention relates to the technical field of evaluation of software intelligent substation protection equipment, in particular to a method for evaluating the loop status of intelligent substation protection equipment by mapping the semantics of unique GOOSE and SV communication messages into physical quantities. Background technique [0002] The online monitoring technology of substation intelligent protection equipment has made great progress in recent years. Because the smart substation has a good self-awareness advantage, it can obtain a large amount of self-status. The representation method of equipment collection and its own state data. These data provide strong support for evaluating the status of protection equipment in smart substations. [0003] However, with the development of substations, especially after the use of smart substations, power protection equipment has further realized the function distribution and networking, in which the t...

Claims

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Application Information

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IPC IPC(8): H02J13/00
CPCH02J13/00019Y02E60/00Y04S10/16
Inventor 叶远波杨小凡陈实谢民王同文纪陵程晓平邵庆祝俞斌王薇
Owner STATE GRID ANHUI ELECTRIC POWER
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