Unified Bay Layer Simulation Model for Smart Substation Data Sharing
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Solution Overview
Problem
Existing simulation methods for smart substations cannot effectively share data between node models of three-layer and seven-layer structures, limiting the functionality of bay layer devices in simulating intelligent electronic devices.
Innovation Solution
A simulation design method that configures application layer modules with unique identity tags and interface layer modules to enable data exchange between three-layer and seven-layer network structures, allowing for the simultaneous processing of SV, GOOSE, and MMS messages by allocating identity tags and constructing sub-modules for data link layers, and setting execution logics for message handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If physical separation of MMS network and process layer networks (SV and GOOSE networks) is implemented, then reliability and real-time performance are improved, but device complexity increases due to requiring multiple Ethernet ports and multiple node model structures
Solution Approach 1:
The patent merges the three-layer structure node model and seven-layer structure node model into a unified bay layer device simulation model. This unified model integrates MMS message processing, SV message processing, and GOOSE message processing capabilities, allowing a single node model to handle multiple network types without requiring separate physical network interfaces for each message type.
Solution Approach 2:
The unified bay layer device simulation model is designed with multi-functionality to process different message types (MMS, SV, GOOSE) through a single interface. The model can dynamically switch between different communication protocols and message formats, eliminating the need for dedicated Ethernet ports for each network type while maintaining the reliability benefits of physical separation.
2Adaptability or versatility
If node model of three-layer structure and node model of seven-layer structure are used for simulation, then specific network requirements are met, but data sharing between models becomes impossible
Solution Approach 1:
The patent combines the three-layer structure node model and seven-layer structure node model into a single unified bay layer device simulation model. This unified model contains integrated data structures that can represent both SV/GOOSE message data (three-layer) and MMS message data (seven-layer) within the same memory space, enabling seamless data sharing between previously separate model types.
Solution Approach 2:
The unified bay layer device simulation model acts as an intermediary that translates between different message formats and protocols. It maintains internal data structures that can represent multiple message types simultaneously, allowing data from SV, GOOSE, and MMS networks to be shared and correlated within a single simulation environment without loss of information.
Data Source
AI summary
Disclosed is a simulation design method for bay layer devices of a smart substation. Application layer modules of two network structures store identity tags of each other's application layer modules respectively, so that a simulation model of the bay layer devices has ports of both network structures and can realize data sharing. The simulation model of the bay layer devices can process SV messages, GOOSE messages and MMS messages simultaneously. An interface layer is additionally configured between an application layer and a data link layer to allow data to be directly mapped to the data link layer from the application layer, so that received or transmitted messages contain actual electrical quantity information. The invention provides model establishment methods of two network structures, thus not only suitable for simulation of the bay layer devices, but also suitable for simulation of station control layer devices and process layer devices.