GOOSE Interlocking Logic Detection via Virtual Substation Simulation
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Solution Overview
Problem
There is a need for a fast and effective method to detect automatic interlocking logic in substation automation systems using the GOOSE communication scheme, which is essential for reliable and real-time communication in intelligent grid applications.
Innovation Solution
The method involves importing a substation configuration document, selecting intelligent electronic devices, setting associations between variables and GOOSE signals, simulating interlocking logic, and performing closed-loop detection through GOOSE communication to verify the correctness of interlocking output results.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual interlocking logic detection methods are used, then detection accuracy can be maintained, but detection efficiency and speed deteriorate
Solution Approach 1:
The patent creates a virtual copy of the substation automation system using SCL configuration files and GOOSE communication models. This virtual model allows automated simulation and detection of interlocking logic without requiring physical system manipulation, thereby dramatically improving detection efficiency while maintaining accuracy through faithful reproduction of the original system's logical behavior
Solution Approach 2:
The patent replaces manual mechanical detection processes with automated computer-based simulation. By substituting human operators with automated detection agents that execute predefined detection scripts, the system achieves faster detection speed and higher efficiency while eliminating human error and reducing detection time
2Reliability
If comprehensive interlocking logic detection is performed, then detection coverage is improved, but system complexity increases
Solution Approach 1:
The patent segments the complex interlocking logic detection task into modular detection scripts, each responsible for specific detection functions. The SCL configuration file is parsed into discrete GOOSE communication relationships and interlocking logic blocks, allowing comprehensive coverage through systematic decomposition while managing complexity through organized modularity
Solution Approach 2:
The patent creates a universal detection framework that can handle multiple types of interlocking logic detection through a single automated system. The detection agent can execute various detection scripts targeting different aspects of GOOSE communication and interlocking logic, providing comprehensive coverage without requiring separate specialized systems for each detection type
3Productivity
If automated detection scripts are used, then detection speed is improved, but implementation complexity increases
Solution Approach 1:
The detection system performs self-configuration by automatically parsing SCL files to extract GOOSE communication parameters and interlocking logic relationships. The system generates detection scripts autonomously based on the parsed configuration, eliminating the need for manual script creation and reducing implementation complexity while maintaining high detection speed through automation
Data Source
AI summary
A method for quickly carrying out effective automatic interlocking logic detection based on a GOOSE communication mechanism, comprising: introducing an automatic system device model and configuration satisfying the IEC61850 standard, and simulating a GOOSE communication behavior in which an intelligent electronic device acts as a quick packet transmitter and receiver, so as to realize the closed-loop detection function by independent publishing and feedback monitoring GOOSE information.