Automatic reliability analysis method of intelligent substation protection system based on scd file

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

Active Publication Date: 2016-11-23
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 reliability analysis method of intelligent substation protection system based on scd file
  • Automatic reliability analysis method of intelligent substation protection system based on scd file
  • Automatic reliability analysis method of intelligent substation protection system based on scd file

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Embodiment Construction

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

[0054] An automatic analysis method for the reliability of intelligent substation protection systems based on SCD files, using SCD files to conduct automatic system performance evaluation, can automatically analyze the reliability of protection systems using different communication networking methods, thereby helping to discover systems. Weak link in reliability and improve design; since the input of evaluation is SCD file, this method makes the analysis result more objective while significantly improving the analysis efficiency. In the smart substation system described in the...

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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 a substation protection technology, in particular to a reliability automatic analysis method of an intelligent substation protection system based on an SCD file. Background technique [0002] In addition to the required functional requirements, the smart substation system also needs to meet various performance requirements. For example, the non-patent document "Research on the Effectiveness Evaluation Model of Intelligent Substation Automation System. Electric Power System Automation, 2013, 37(9): 1-9" researches and proposes a system effectiveness that covers reliability, availability, real-time performance and economy. Degree index; non-patent document "Analysis of cascading failures of substation automation systems based on IEC61850. Automation of Electric Power Systems, 2013, 02: 61-66" Starting from complex network theory, taking logical nodes as nodes and logical connections as edges, the intelligent substation is abstrac...

Claims

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Application Information

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Patent Type & Authority Patents(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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