Intelligent Power Server for Substation Protection and Control
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Solution Overview
Problem
Intelligent substations face challenges with numerous secondary devices, large floor space requirements, and high construction and maintenance difficulties due to complex wiring and decentralized modeling approaches, leading to increased costs and power consumption.
Innovation Solution
A protection and control system based on an industrial Internet architecture, featuring an intelligent power server and integrated merging units and terminals that utilize a centralized modeling approach, allowing all bays to connect directly to the server through a high-bandwidth network for real-time data processing and function management, reducing the need for physical apparatuses and simplifying configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple protection apparatuses are deployed in each bay, then protection coverage is improved, but device complexity and floor space increase
Solution Approach 1:
The patent merges multiple protection apparatuses into a single integrated protection device. The device can dynamically allocate protection resources to different bays based on system state, replacing the traditional approach of deploying separate protection apparatuses in each bay. This consolidation reduces the total number of secondary devices while maintaining comprehensive protection coverage through virtualization and dynamic resource allocation.
Solution Approach 2:
The integrated protection device possesses multi-functional capabilities, serving multiple bays simultaneously with different protection functions. A single device can perform protection, measurement, and control functions across various bays by dynamically configuring its operational mode, thereby eliminating the need for dedicated protection apparatuses in each bay while enhancing overall system reliability.
2Reliability
If multiple protection apparatuses are deployed in each bay, then protection coverage is improved, but floor space occupied by secondary devices increases
Solution Approach 1:
By consolidating multiple protection apparatuses into a single integrated device, the physical footprint required for housing secondary devices is dramatically reduced. The merged device occupies significantly less floor space compared to multiple separate apparatuses, while maintaining the same protection coverage through virtualization and dynamic resource allocation across bays.
3Reliability
If complex wiring is implemented for multiple protection apparatuses, then protection functionality is improved, but construction and maintenance difficulty increase
Solution Approach 1:
The integration of multiple protection apparatuses into a single device consolidates the wiring requirements. Instead of implementing complex wiring connections for multiple separate apparatuses, the integrated device requires fewer connection points and simplified cable routing, thereby reducing construction difficulty while preserving comprehensive protection functionality through software-based resource allocation.
4Reliability
If multiple protection apparatuses are deployed, then protection coverage is improved, but maintenance workload increases
Solution Approach 1:
By merging multiple protection apparatuses into a single integrated device, the number of components requiring maintenance is reduced. The unified device allows centralized monitoring, diagnostics, and updates, significantly lowering maintenance workload compared to managing multiple separate apparatuses across different bays, while maintaining comprehensive protection coverage through dynamic resource allocation.
Data Source
AI summary
The present application relates to a protection and control system for an intelligent substation based on an industrial Internet architecture. The intelligent substation changes a decentralized modeling manner of firstly adding physical apparatuses and then adding functions of the apparatuses in a traditional substation, but adopts a centralized modeling manner of adding all of protection, measurement and control, exchange and telecontrol functions in substation configuration descriptions by taking the whole substation as a modeling object. The intelligent substation changes an operating mode of accessing merging unit and intelligent terminal integrated devices to different physical apparatuses to realize measurement and control and various protections respectively in the traditional substation, while the intelligent power server collects process level data in real time through an embedded high-bandwidth switched communication network and performs real-time data processing on the collected process level data, thereby realizing all the protection and measurement and control over primary devices.