Dynamic SV Communicator for Power System Redundancy
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Solution Overview
Problem
In electric power delivery systems, the failure of measurement devices or communication systems can disrupt the flow of sampled values to intelligent electronic devices (IEDs), leading to gaps in monitoring and protection, and existing redundancy solutions often require additional components, increasing complexity and cost.
Innovation Solution
The implementation of a dynamic networking SV communicator system that dynamically routes sampled values from secondary or alternative measurement devices to IEDs, leveraging software-defined networking concepts to utilize existing components for redundancy without adding new hardware, ensuring continuous monitoring and protection by detecting failures and rerouting signals quickly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional redundancy solutions are implemented, then system reliability is improved, but device complexity increases due to additional components
Solution Approach 1:
The SV communicator is designed to perform multiple functions: it acts as a communication device, a failure detection system, and a signal routing switch all in one component. This multi-functionality eliminates the need for separate redundancy components while maintaining system reliability, as the single device can detect failures and route signals from alternative measurement devices without requiring additional dedicated hardware.
Solution Approach 2:
The SV communicator autonomously detects failures in the sampled value communication system and automatically routes signals through alternative paths without external intervention. This self-service capability enables the system to maintain reliability through automatic failover, eliminating the need for complex manual redundancy configurations and additional monitoring components.
2Reliability
If additional redundancy components are added, then measurement continuity is improved, but cost increases
Solution Approach 1:
By designing the SV communicator to handle multiple functions including failure detection, signal routing, and communication, the system achieves measurement continuity without requiring additional dedicated redundancy components. The multi-functional design consolidates what would traditionally require multiple separate devices into a single cost-effective component.
3Device complexity
If static routing is used, then device complexity is reduced, but adaptability to failures is worsened
Solution Approach 1:
The routing configuration is made dynamic rather than static, allowing the SV communicator to automatically adapt to failure conditions by detecting which measurement devices are operational and routing signals accordingly. This dynamic adaptability enables the system to respond to failures in real-time without requiring complex manual reconfiguration, maintaining simplicity while improving versatility.
Solution Approach 2:
The system incorporates feedback mechanisms where the SV communicator monitors the status of measurement devices and communication paths, using this information to automatically adjust routing decisions. This feedback loop enables adaptive routing that responds to actual system conditions, providing versatility without requiring overly complex predetermined routing configurations for every possible failure scenario.
Data Source
AI summary
Systems and Methods are disclosed for providing measurement data redundancy to intelligent electronic devices (IEDs) in an electric power system, without additional redundant components. In various embodiments, a first measurement device obtains measurement data from a first portion of the electric power delivery system. A second measurement device obtains measurement data from a second portion of the electric power delivery system. A first IED monitors the first portion of the electric power delivery system based on measurement data associated with the first portion of the electric power delivery system, and a second IED monitors the second portion of the electric power delivery system based on measurement data associated with the second portion of the electric power delivery system. Assuming the first and second portions are coordinated, a communication system dynamically routes measurement data from the second measurement device to the first IED upon a failure of receiving digital measurements from the first measurement device.