Research on Intelligent Monitoring and Maintenance Technology of Substation Based on Digital Twin

Abstract

The design, research and development, test, operation and maintenance of power grid substation equipment are relatively independent. Related problems in each link cannot be comprehensively managed from the perspective of the full life cycle of equipment. Operation and maintenance personnel need to face data monitoring, network monitoring, equipment monitoring, business system monitoring, fault diagnosis and repair and other business scenarios. There are many types of information, complex association relationship, abstract and inefficient operation and maintenance information, “man-machine-object” can not be two-way cooperation and interaction, fault diagnosis and troubleshooting difficulties. Digital substation intelligent monitoring operational digital twin applications, digital intelligent substation operations provide operational monitoring service ability, realize the grid digital substation twin modeling and environment reconstruction, false or true merged superposition, two-way coordinated interaction, twin intelligence operations and panoramic visual monitoring, field devices for power grid operation maintenance, resource scheduling, and construction planning to provide guidance, Fully guarantee the safe and reliable operation of power grid equipment, realize the full life cycle management of power grid equipment, and improve the level of intelligence, visualization and digitalization of power grid.

Exploring Digital Twin-Based Fault Monitoring: Challenges and Opportunities

“…The result of their model validation showed that their approach was able to indicate a recurring abnormality during the startup of the tested feedwater component, as confirmed by the plant operator, which says that although the model is functional, it is still reliant on human intervention. The work of [ 42 ] provides a simple discussion on the intelligent monitoring and maintenance of power grid substations using DT. The current approach for monitoring substations often presents complexities due to the independence of equipment and system stages from their design to operation and maintenance.…”

Operation and maintenance management and emergency response of data protection system in market supervision

“…Through the change of operation consciousness and service attitude, the management and maintenance can be ensured by better supervision and coordination. The IT-based automatic operation and maintenance supervision system of market supervision is the foundation of the current systematic and intelligent construction of market supervision [1]. It can not only stably support the operation, maintenance and management, but also quickly and accurately deal with the hidden dangers and problems of market supervision.…”

Reasoning simulation of substation power grid fault events based on knowledge map technology

“…Power grid control system is a typical information-intensive and knowledge-intensive decision control center [1]. Knowledge modeling based on domain experience, operation specifications and rules is one of the important means to realize knowledge-driven intelligent scheduling [2]. KnowledgeGraph, as a knowledge organization and construction method based on artificial intelligence technology, its information expression is closer to the form of human cognitive world, and it can express complex relationships from the semantic level, providing a better ability to manage and understand massive information.…”