An optimization method for the design of virtual terminals in smart substations

Abstract

The invention discloses a method for optimizing an intelligent substation virtual terminal design. The method specially comprises the following steps of (1) creating typical intervals; (2) defining a GOOSE input virtual terminal and an SV input virtual terminal in advance in an ICD (IED Capability Description) file of an intelligent electronic device (IED), creating an Inputs node under an LLN0 logic node under an access point of the ICD file of the intelligent electronic device, and adding the GOOSE input virtual terminal and the SV input virtual terminal into the Inputs node; (3) establishing the connection relationship between the GOOSE virtual terminal and the SV virtual terminal of the typical intervals; (4) as the connection relationships between the virtual terminals between interval internal devices with the same voltage stage and the same type are the same, finishing the connection configuration between virtual terminals of other intervals under the same voltage stage by copying the typical intervals. According to the method, the workload and work complexity of the design stage of an intelligent substation can be reduced; the design efficiency and quality of the intelligent substation virtual terminals can be improved.

Description

technical field [0001] The invention relates to an optimization method for designing a virtual terminal of an intelligent substation, and belongs to the technical field of SCD file configuration of an intelligent substation. Background technique [0002] In conventional substations, information is exchanged between secondary equipment and primary equipment, and between secondary equipment and secondary equipment through a large number of cables. Smart substations realize on-site digitalization of measurement and control of primary equipment through intelligent components. Conventional substations The hard-wiring design based on the terminal block in the system has become the "virtual terminal" design based on the functional interface index of the equipment model, and the design of the virtual terminal connection relationship between devices has become the main content of the secondary design of the smart substation. [0003] At present, there are mainly two ways to design vi...

AI Technical Summary

Problems solved by technology

The number of virtual circuits in smart substations is large and complex. The number of virtual circuits in a 220kV substation is tens of thousands, and the number of virtual circuits in a 500kV smart substation is astonishing. The efficiency of manual configuration design is extremely low, and the accuracy of virtual terminal design is difficult. Guaranteed; with the help of auxiliary tool design, since the input terminals are scattered under each LN logical node prefixed with "GOIN", when configuring the virtual terminal connection relationship, it is necessary to manually select valid input virtual terminals from each LN logical node, resulting in intelligent The efficiency of substation virtual terminal connection configuration is low, and the error rate is high in the engineering configuration and development process based on virtual terminals

If the existing smart substation virtual terminal design process is not optimized, the design cycle of the smart substation will take a long time and a lot of energy, and the accuracy of the virtual terminal connection will affect the reliable operation of the substation

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