Substation Synchronization Token System for Data Consistency

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Solution Overview

Problem

Current methods for synchronizing signal information between substation configuration description (SCD), remote configuration description (RCD), and monitoring backend database in intelligent substations rely on manual operations, leading to inconsistencies and difficulties in maintaining data consistency, which hampers real-time modifications and coordination between these systems.

Innovation Solution

A synchronization system utilizing 'synchronization tokens' and 'modification tokens' ensures data consistency by managing the modification process, where a synchronization token includes necessary signal information and a modification path, and a modification token includes modified information and paths, enabling accurate and efficient data synchronization between SCD, RCD, and the monitoring backend database.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual operation is used to modify SCD, RCD, and monitoring backend database, then flexibility in modification is maintained, but data consistency between these files cannot be guaranteed

Engineering Contradiction:
Improvemanual modification flexibilityVSAvoiddata consistency
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent introduces a synchronization server as an intermediary component that coordinates modifications between SCD, RCD, and monitoring backend database files. The server receives modification requests, generates synchronized update operations, and ensures all files are modified consistently, thereby maintaining data integrity while preserving operational flexibility through a centralized control mechanism.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If automatic synchronization is implemented between SCD, RCD, and monitoring backend database, then data consistency is improved, but system complexity increases

Engineering Contradiction:
Improvedata consistencyVSAvoidsynchronization system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The synchronization system is segmented into distinct functional modules: a synchronization server for coordinate control, SCD synchronization modules for configuration file handling, and monitoring backend database synchronization modules for signal information management. This modular architecture reduces overall system complexity by assigning specific responsibilities to each component while maintaining automatic synchronization across all files.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The synchronization server acts as a mediator that manages the complexity of automatic synchronization by centralizing the coordination logic. It receives modification requests from any source, generates appropriate synchronization operations, and distributes them to relevant modules, thereby simplifying the overall system architecture while ensuring data consistency.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Productivity

If real-time synchronization is achieved between SCD, RCD, and monitoring backend database, then coordination efficiency is improved, but time consumption for modification increases

Engineering Contradiction:
Improvecoordination efficiencyVSAvoidmodification time
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The system performs preliminary actions by pre-generating synchronization operation sequences and preparing update packages before actual modifications are needed. The synchronization server maintains a ready-state configuration that can be quickly deployed across all files, reducing the actual modification time while ensuring real-time synchronization when changes are required.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The synchronization system maintains continuous readiness to synchronize by keeping the synchronization server and modules in an active state, with pre-established communication channels and ready-to-execute synchronization logic. This continuous preparedness enables rapid response to modification requests without incurring setup delays, thereby improving coordination efficiency without significantly increasing modification time.

Inventive Principle:
Principle #20Continuity of useful action

Data Source

PatentUS11630847B2Synchronization system and method for substation monitoring backend database, SCD, and RCD
Publication Date: 2023.04.18 STATE GRID FUJIAN ELECTRIC POWER CO LTD
  • US11630847B2 patent drawing
  • US11630847B2 patent drawing
  • US11630847B2 patent drawing

AI summary

The present disclosure provides a synchronization system and method for a substation monitoring backend database, an SCD, and an RCD. The system includes: a synchronization token management unit, an SCD synchronization module, an RCD synchronization module, and a monitoring backend database synchronization module. The synchronization token management unit is configured to send or reclaim modification tokens, only at most one of which can exist at a time, and send a synchronization token.