Unified Mode Switching for Substation IEDs
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Solution Overview
Problem
Reconfiguring monitoring devices in electric power delivery systems from active to testing mode is time-consuming, complex, and prone to errors due to the extensive modification required for each logical node, which complicates the process and increases the risk of errors during migration.
Innovation Solution
Implementing a system that allows for reconfiguration between active and testing modes using a single command, where the configuration logical device updates the behavior of each logical node, simplifying the process and reducing errors by using a single input to modify the behavior of all nodes simultaneously.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual reconfiguration of each logical node is performed to switch between active and testing modes, then the monitoring device can be properly configured for testing, but the process becomes time-consuming and complex
Solution Approach 1:
The patent combines multiple individual logical node configuration operations into a single mode switching operation. When the testing mode is activated, the system simultaneously updates all relevant logical nodes (such as changing behavior from 'operational' to 'testing' state) through a unified configuration mechanism, eliminating the need for manual step-by-step modification of each node individually.
Solution Approach 2:
The system pre-defines configuration sets for different operational modes (active mode, testing mode, commissioning mode). These configuration sets are prepared in advance and stored in the system, allowing instant switching between modes by simply selecting the appropriate pre-configured set, rather than performing manual configuration operations each time a mode change is needed.
2Reliability
If extensive modification of each logical node is performed during mode switching, then the device can be properly configured, but the complexity of the reconfiguration process increases
Solution Approach 1:
The patent implements a universal mode switching mechanism that handles multiple logical nodes and configuration parameters through a single unified interface. This multi-functional approach allows the same switching operation to simultaneously affect numerous logical nodes, reducing the perceived complexity while maintaining complete configuration control.
Solution Approach 2:
The system uses template-based configuration where a master configuration template defines the state of multiple logical nodes. When switching modes, the system copies the appropriate template configuration to all relevant logical nodes, ensuring consistency and reducing complexity by working with a single template rather than modifying each node individually.
3Adaptability or versatility
If manual reconfiguration is performed for each logical node, then configuration can be customized, but the risk of errors during migration increases
Solution Approach 1:
The system incorporates feedback mechanisms that automatically verify configuration integrity during mode switching. After applying a mode configuration, the system checks whether all logical nodes have been properly updated and whether the configuration state is consistent, providing immediate feedback to detect and prevent errors before they propagate.
Solution Approach 2:
The mode switching mechanism performs self-verification and automatic error detection without requiring manual intervention. The system automatically validates the configuration changes, ensures consistency across logical nodes, and can even roll back changes if errors are detected, reducing the error rate while maintaining configuration flexibility.
Data Source
AI summary
A single point to modify a behavior of intelligent electronic devices (IEDs) between active and testing modes is disclosed herein. The IED may include a variety of logical nodes, each with a behavior object related to the active or testing mode behavior of the IED. A single testing mode selection point of the IED is used to modify each of the logical nodes to change between active and testing modes. The testing mode selection point may be a logical input. The testing mode selection point may be a physical switch on the IED.