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Automatic analysis method for reliability of intelligent substation protecting system based on SCD (Substation Configuration Description) file

A technology for smart substations and protection systems, applied in electrical digital data processing, natural language data processing, special data processing applications, etc., can solve problems such as low efficiency, and achieve the effect of improving analysis efficiency and design.

Active Publication Date: 2014-02-05
ELECTRIC POWER SCI RES INST OF GUIZHOU POWER GRID CO LTD +1
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Problems solved by technology

However, the common problem in the above literature is that before the system performance analysis, it is necessary to manually establish the corresponding performance evaluation model
Due to the complex and changeable network structure of smart substations, the efficiency of the above performance evaluation is low

Method used

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  • Automatic analysis method for reliability of intelligent substation protecting system based on SCD (Substation Configuration Description) file
  • Automatic analysis method for reliability of intelligent substation protecting system based on SCD (Substation Configuration Description) file
  • Automatic analysis method for reliability of intelligent substation protecting system based on SCD (Substation Configuration Description) file

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Embodiment Construction

[0053] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

[0054] An automatic analysis method for reliability of intelligent substation protection system based on SCD files, using SCD files for automatic system performance evaluation, can automatically analyze the reliability of protection systems using different communication networking methods, thus helping to discover system The weak link of reliability can be improved and the design can be improved; since the input of the evaluation is SCD file, this method can significantly improve the analysis efficiency and the analysis result is more objective. In the smart substation system describe...

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Abstract

The invention relates to an automatic analysis method for reliability of an intelligent substation protecting system based on a SCD file. The automatic analysis method comprises the following steps: 1) reading the SCD file and obtaining a predicate expression of a virtual terminal and a virtual loop of each IED (Intelligent Electronic Device) in a protecting system; 2) generating a logical connection diagram and a predicate expression thereof of the protecting system according to the predicate expression; 3) performing predicate calculus according to the predicate expression of the logical connection diagram, identifying the physical connection of the protecting system and generating a physical connection diagram of the protecting system; 4) converting the physical connection diagram into a reliability block diagram of the protecting system; and 5) performing the calculation for the reliability index on the protecting system according to the reliability block diagram. Compared with the prior art, the automatic analysis method provided by the invention has the advantages of high efficiency, capability of adapting to various communication modes of the intelligent substation protecting system and the like.

Description

technical field [0001] The invention relates to substation protection technology, in particular to an automatic analysis method for the reliability of an intelligent substation protection system based on an SCD file. Background technique [0002] In addition to meeting the required functional requirements, the smart substation system also needs to meet various performance requirements. For example, the non-patent literature "Research on Effectiveness Evaluation Model of Smart Substation Automation System. Electric Power System Automation, 2013, 37(9): 1-9" studies and proposes a system effective system covering reliability, availability, real-time and economy degree index; non-patent literature "Analysis of Cascading Failures in Substation Automation System Based on IEC61850. Electric Power System Automation, 2013, 02: 61-66", starting from complex network theory, taking logical nodes as nodes and logical connections as edges, abstracting smart substations into a complex ne...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30G06Q50/06
CPCG06F40/205G06Q50/06
Inventor 高吉普徐长宝张沛超戴宇陈建国
Owner ELECTRIC POWER SCI RES INST OF GUIZHOU POWER GRID CO LTD
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