Protection Relay Communication Repeater for Flexible Device Configuration
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Solution Overview
Problem
Conventional protection relay systems face limitations in easily changing communication and system configurations due to direct data communication methods between relay devices and terminal devices, which restricts the utilization and operation of multiple devices.
Innovation Solution
The implementation of a communication repeater device that facilitates data transmission between relay devices and terminal devices, allowing for flexible communication and system configuration changes, including the addition or exclusion of devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If direct data communication is used between relay device and terminal device, then data transmission is simple, but system configuration changes require hardware modification and reconfiguration
Solution Approach 1:
The patent introduces a communication server as an intermediary component that mediates data transmission between relay devices and terminal devices. This server handles data routing, format conversion, and communication protocol management, allowing relay devices and terminal devices to communicate without direct physical connections. When system configuration changes occur, only the communication server needs to be reconfigured, not the hardware connections between devices.
2Stability of the object's composition
If direct connection method is used for data communication, then hardware configuration is fixed, but adding or excluding devices requires hardware changes
Solution Approach 1:
The communication server acts as a central intermediary that manages all device connections and data routing. When new relay devices or terminal devices are added to the system, they only need to establish logical connections through the communication server. The server automatically registers new devices, assigns communication parameters, and routes data appropriately, eliminating the need for physical hardware reconfiguration.
3Device complexity
If single IED body with HMI is used, then system structure is simple, but multiple relay devices cannot be efficiently utilized
Solution Approach 1:
The communication server provides universal data collection and distribution capabilities that serve multiple relay devices and terminal devices simultaneously. It implements a publish-subscribe model where relay devices can publish data to multiple terminal devices, and terminal devices can subscribe to data from multiple relay devices. This multi-functional architecture enables efficient utilization of multiple relay devices without requiring complex point-to-point connections.
Solution Approach 2:
The patent transitions from a one-to-one direct connection model to a many-to-many communication model through the communication server. This dimensional change in communication architecture allows multiple relay devices to communicate with multiple terminal devices simultaneously through a centralized server, dramatically increasing system capacity and device utilization without proportional increases in connection complexity.
Data Source
AI summary
The present specification relates to a protection relay system in which a relay device transmits data to a repeater device, the repeater device transmits the data to a terminal device, and the repeater device repeats communication between the relay device and the terminal device.