Intelligent Substation Configuration via Centralized Modeling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The configuration process of intelligent substations is complicated and centralized, failing to effectively meet the high measurement and control and protection needs due to the need for repeated configuration of secondary devices when adding or updating apparatuses.
Innovation Solution
A software-defined realization method that uses a centralized modeling approach, where merging units and intelligent terminal devices are directly accessed through transport ports on an intelligent power server, allowing for the creation and updating of protection, measurement, and control functions within substation configuration descriptions, enabling efficient management of special functions without the need for physical apparatus additions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If each IED is modeled separately and ICD files are imported into SCD configuration tool for unified instance configuration, then the configuration process can generate SCD and CID files for each device, but the configuration process becomes complicated and needs to be repeatedly conducted when adding or updating secondary devices
Solution Approach 1:
The patent uses template files (ICD, SCD, CID) as reusable copies that define the structure and configuration of intelligent electronic devices. When devices are added or updated, instead of creating configurations from scratch, the system copies and instantiates these templates, significantly reducing configuration time and complexity while maintaining consistency across the substation system
Solution Approach 2:
The patent performs preliminary configuration by creating master template files (ICD, SCD, CID) that contain all necessary device definitions, data models, and configuration parameters before actual device deployment. These pre-prepared templates enable rapid instantiation when devices are added or updated, eliminating the need for repeated manual configuration processes
2Adaptability or versatility
If the substation scale is enlarged and new bays are added, then the substation capacity is increased, but the configuration process needs to be repeatedly conducted by importing new ICD files and regenerating SCD and CID files
Solution Approach 1:
The patent segments the substation configuration into modular template files (ICD for device capabilities, SCD for substation context, CID for device instantiation) that can be independently developed, validated, and reused. This segmentation allows new bays and devices to be added by simply instantiating existing templates rather than reconfiguring the entire system, enabling scalable substation expansion without proportionally increasing configuration complexity
Solution Approach 2:
The patent creates universal template files that can serve multiple devices and functions across different bays. A single ICD template can define the capability model for multiple similar devices, and SCD templates can represent entire bay configurations that can be replicated. This universality allows the same configuration templates to be reused across the entire substation lifecycle, from initial commissioning to future expansions
Data Source
Figure 1
Figure 2
AI summary
The application relates to a software-defined realization method based on a protection and control system for an intelligent substation. According to the application, an intelligent substation adopts a centralized modeling manner of directly adding and updating all of a protection, a measurement and control, an exchange and a telecontrol functions in substation configuration descriptions by taking the whole substation as a modeling object, instead of a decentralized modeling manner of sequentially adding a single physical apparatus and then adding functions of each apparatus adopted by a traditional substation. Since SCD files of the intelligent substation are created based on merging unit and intelligent terminal integrated devices and special functions planned by the intelligent substation, and configuration information of each of the special functions is set in the SCD files of the intelligent substation, an aim of defining the special functions of the intelligent substation through software is achieved.