A Target Device Pair Matching Method Based on IED Information and Common Keyword Check

Abstract

The invention discloses a target device pair matching method based on IED information and common keyword checking, comprising the following steps: Step 1: Construct a history association pair table containing each device history association pair in the history SCD database; Step 2: by The basic information of receiving and sending IEDs to be designed is to obtain the query conditions of the historical association table; step 3: query the historical association pairs satisfying the conditions in the historical association table according to the query conditions; Check; Step 5: Obtain the similarity between the historical receiving device description and the current receiving device description, the historical sending device description and the current sending device description; Step 6: Use the historical association pair in the matching historical association pair set as the current receiving IED to be designed and the target device that sends the IED; the invention solves the technical problems of inaccurate and inefficient target association pairs in the search history database in the virtual terminal design, and improves its intelligence and efficiency.

Description

technical field [0001] The invention relates to the field of design and debugging of intelligent substations, in particular to a method for matching target equipment pairs based on IED and common keyword checking. Background technique [0002] Domestic power design institutes use virtual terminal tables or SCD (Substation Configuration Description) to design the input and output signal connections between devices in smart substations, thus providing virtual connections between devices; The designers of the institute use the device virtual terminal source table derived from the manufacturer's ICD (IED Capability Description) file to manually copy the virtual terminal for the receiving IED (Intelligent Electronic Device) and sending IED to be designed. It is cumbersome to design each virtual connection of each device in the Excel file of the table, which is not intelligent and may cause replication errors. [0003] For example (Ma Kai, Huang Shu, Hou Aijun, et al. Research on...

AI Technical Summary

Problems solved by technology

A method for automatically generating a virtual terminal list based on multiple SCD templates [P].CN201510169738.5, 2015-4-13) According to multiple SCD template files obtained by existing SCD processing, using the association to be designed to match the device code The associated pairs of IEDs in the historical SCD database, but because the device codes of the associated pairs to be designed given by the designer are not necessarily accurate, the matched historical associated pairs are not ideal; (Zhuang Xiantao. Research on key technologies of virtual terminal design in smart substations and Development [D], Master Thesis of Southwest Jiaotong University, 2015) Although the database is considered to store the template virtual connection of the historical SCD, the fuzzy matching method of the device code and the string is mainly used to find the target association pair, but when the device code is not When it is accurate or has not been given, this approach may result in inaccurate or inaccurate search target association pairs; (Huang Zhigao, Li Yan, Li Teng, Zhao Xuelin, Li Peng, Gu Junjie, Smart Substation SCD File Virtual Circuit Automatically Generated Design and Implementation of Technology, Power System Protection and Control, 2017,45(17):106-111) The matching of IED equipment is mainly performed through the descKey and IEDname keywords of IED

The description keyword reflects the matching mode of the description through regular expressions. The disadvantage is that a set of description keywords descKey must be prepared for each device in advance, and the IED name IEDname needs to be matched at the same time. In this way, when there are many IEDs in a substation, the It takes a lot of work to prepare a set of description keywords for each device, and at this time, the receiving IED and sending IED to be designed may not have an IEDname, and IEDname matching cannot be performed

[0004] The existing methods do not make full use of similar device association pairs (an association pair consisting of a receiving IED and a sending IED) and their virtual connections in the historical SCD. The designed receiving IED and sending IED accurately match the target correlation pair in the historical correlation pair, but there are problems such as inaccurate target correlation pair found, low efficiency, and error-prone

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