Decentralized Protection Relay Communications Server
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Solution Overview
Problem
Conventional communication servers in automation systems are prone to failures that can lead to significant downtime and potential safety risks or loss of output, as they are central to controlling multiple protection relays and processes across industrial, commercial, and residential applications.
Innovation Solution
Integration of a protection relay with a communications server portion that functions independently, allowing for both protective relay operations and communications operations, thereby decentralizing the communication infrastructure and reducing reliance on a single point of failure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a centralized communications server is used to control multiple protection relays and processes, then communication efficiency and system coordination are improved, but system reliability deteriorates due to single point of failure
Solution Approach 1:
The patent divides the centralized communications server into multiple distributed communications modules, each integrated with individual protection relays or control devices. This segmentation eliminates the single point of failure while maintaining communication functionality across the automation system.
Solution Approach 2:
The patent extracts the communications server functionality from the centralized architecture and distributes it to edge devices such as protection relays and PLCs. This allows local communication processing while reducing dependency on the central server.
2Ease of operation
If a centralized communications server is used to manage all communication operations, then system control capability is improved, but downtime impact worsens when the server fails
Solution Approach 1:
The patent segments the communication control functionality across multiple distributed devices, allowing local control operations to continue independently even when the central server is unavailable, thereby reducing downtime impact.
Solution Approach 2:
The patent implements preliminary action by enabling communication modules at edge devices to autonomously handle communication operations in advance, so that when the central server fails, these distributed modules can immediately take over without causing system-wide downtime.
3Device complexity
If communication operations are centralized in a single server, then system simplicity is improved, but troubleshooting complexity worsens when issues occur
Solution Approach 1:
The patent segments communication functionality into modular components distributed across multiple devices, making it easier to isolate and identify the specific module or device causing communication issues, thereby reducing troubleshooting complexity.
Solution Approach 2:
The patent introduces communication modules at edge devices as intermediaries between the central server and field devices. These intermediaries can independently diagnose and report communication issues, simplifying the troubleshooting process by localizing problems to specific modules rather than requiring system-wide analysis.
Data Source
AI summary
A protection relay with integrated communications may include a protective relay portion to perform protective relay operations associated with a load operatively connected to the protection relay, and a communications server portion to perform communications operations as an independently operating communications server.