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Method for rapid positioning variation influence scope of secondary virtual loop of intelligent transformer station

A technology of secondary virtual circuit and intelligent substation, which is applied in circuit devices, generation of response errors, electrical components, etc., can solve the problems of low judgment efficiency of reconstruction and expansion projects, difficult for operation and maintenance personnel to intuitively know virtual circuit signals, and high risks. , to achieve the effect of excellent scalability

Active Publication Date: 2015-08-26
CHINA SOUTHERN POWER GRID COMPANY +1
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AI Technical Summary

Problems solved by technology

[0002] IEC 61850 proposes an object-oriented modeling idea for the secondary equipment of the intelligent substation automation system. The intelligent electronic equipment encapsulates its internal properties and only provides the necessary external interfaces. In this case, the traditional hard-wiring method consists of Logical virtual circuit is replaced, and information is transmitted between devices through optical fiber. It is difficult for operation and maintenance personnel to intuitively know the virtual circuit signal interaction process
[0003] In addition, due to the upgrade of the only description window SCD in the whole station due to the renovation and expansion of the substation, it is currently impossible to effectively inform the operation and maintenance personnel of the impact of the change on the secondary virtual circuit. The judgment efficiency is very low and the risk is very high during the expansion project

Method used

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  • Method for rapid positioning variation influence scope of secondary virtual loop of intelligent transformer station
  • Method for rapid positioning variation influence scope of secondary virtual loop of intelligent transformer station
  • Method for rapid positioning variation influence scope of secondary virtual loop of intelligent transformer station

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Experimental program
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Embodiment Construction

[0030] 1.1. Standardize the naming of IED devices, as shown in Table 1:

[0031]

[0032]

[0033] Table 1 IED naming grammar rule table

[0034] The actual device type and its interval described by the IED model in the SCD file can be obtained according to the above grammar specification.

[0035] 2. Model different types of IED devices according to the actual communication rules in the station:

[0036] ①The intelligent terminal model provides GSE subscription and publishing interfaces for the protection model and the measurement and control model, and the GSE publishing interface for the merging unit model;

[0037] ② The merging unit model provides the protection model SV publishing interface, the intelligent terminal model GSE subscription interface, the bus merging unit model provides the other non-bus merging unit models the SV publishing interface, the non-bus merging unit model provides the bus merging unit model with the SV subscription interface, Provide mea...

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Abstract

The invention discloses a method for rapid positioning variation influence scope of a secondary virtual loop of an intelligent transformer station. The method includes setting IED naming standard for SCD, obtaining IED types and interval information according to the naming standard, positioning nodes of the secondary virtual loop, building a secondary virtual loop information AC model, extracting partial GSE / SV publishing and subscribing related information of IED process layer in SCD, calculating CRC check code, obtaining IED model check codes, comparing CRC code value of IED model before and after SCD upgrading and CRC code value of the interface thereof, generating an CRC switch of an apparatus-level layer and an CRC switch of an interface-level layer, and rapidly positioning influence scope by combining the interval flowing chart of the secondary virtual loop. The method realizes rapid positioning the influence of SCD variation on the secondary virtual loop, steps are not strongly dependent on each other, Expanding of secondary virtual loop monitoring and virtual and physical link combination is allowed.

Description

technical field [0001] The invention relates to a method for quickly locating the influence range of a secondary virtual circuit based on hierarchical calculation of device information flow CRC in an intelligent substation configuration description file SCD, and belongs to the technical field of electric power system automation. Background technique [0002] IEC 61850 proposes an object-oriented modeling idea for the secondary equipment of the intelligent substation automation system. The intelligent electronic equipment encapsulates its internal properties and only provides the necessary external interfaces. In this case, the traditional hard-wiring method consists of Logical virtual circuit is replaced, and information is transmitted between devices through optical fiber. It is difficult for operation and maintenance personnel to intuitively know the virtual circuit signal interaction process. [0003] In addition, due to the upgrade of the only description window SCD in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J13/00G06F11/10
CPCY02E60/00Y04S10/16Y04S10/18
Inventor 刘之尧丁晓兵张弛徐鹏张哲纪陵檀庭方彭业
Owner CHINA SOUTHERN POWER GRID COMPANY
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