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Object-oriented bus protection setting method

An object-oriented, busbar protection technology, applied in the direction of emergency protection circuit devices, electrical components, etc., can solve the problems of not being able to adapt to the main wiring mode, and achieve the effects of reduced workload, easy implementation, and strong adaptability

Active Publication Date: 2009-12-23
NR ELECTRIC CO LTD +1
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  • Abstract
  • Description
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Problems solved by technology

[0006] It can be seen that the traditional differential configuration logic based on the busbar as the object cannot adapt to these many main wiring methods, so a differential configuration method that can adapt to various main wiring is needed

Method used

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with example:

[0027] like Figure 4 , this is the double-female double-segment main wiring, but in addition to the general characteristics of the standard double-female double-section main wiring, there are also differences, mainly: some components (that is, branch 5) can be connected at a pair of corners Switching between the busbars of the line (that is, busbars I and IV).

[0028] In this way, if the busbar protection of the main wiring system is realized by the traditional method, the program changes greatly. However, after adopting the object-oriented setting method, it is only necessary to set the "Topological information of connected bus" can be configured according to the actual situation, and the program does not need to be changed in any way.

[0029] Below this special main connection is taken as an example to illustrate the specific implementation method of the invention ( Figure 4 ),...

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Abstract

An object-oriented bus protection setting method takes a bus voltage transformer in a main bus connection system, a bus coupler or section switch, a feeder switch and a stripe-spanning disconnecting switch as basic composition objects, firstly analyzes the topological structure of each basic composition object, and then forms a bus topological structure, and later takes the bus topological structure as the object so as to finish the differential composition logic of bus differential protection in accordance with a traditional method; by analyzing the configuration information of the basic composition objects, the self-adaptive construction of a bus differential protection scope is finished; each basic composition object respectively defines each type and simultaneously provides relative configuration information: parameter, input and output; according to the configuration information, the topological structure of a protected bus is formed, and then the self-adaptive construction of the bus differential scope, which is finished by analyzing the configuration information of the objects, is protected; and the bus adopting the bus protection setting method has very strong protection and adaptability, can conveniently achieve the bus protection of different main connection systems by modifying the configuration files, and is conducive to improving the program quality.

Description

technical field [0001] The invention relates to a busbar protection method, in particular to a differential self-adaptive construction method for busbar differential protection and a protection device using the method. Background technique [0002] There are many main wiring modes and operation modes in the power system. The traditional bus differential protection only targets the bus. However, due to the ever-changing main wiring of the bus, it is difficult to select the differential composition of the components. Sometimes it has to be The logic of the differential configuration is changed due to the main wiring, resulting in many types of busbar protection devices and a large workload for program upgrade and maintenance. Especially when encountering some special main wiring systems, corresponding special programs need to be specially developed, the program structure and differential composition change greatly, and the workload of secondary development of the programs is h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H7/22
Inventor 李力吕航
Owner NR ELECTRIC CO LTD
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