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Key electrical equipment lacks operational information monitoring, making it impossible to monitor equipment operation status, reliability, and safety in real time.
Underground coal mine power supply systems face issues such as uneven load distribution, severe harmonic pollution, and frequent leakage, presenting significant electrical safety hazards.
Protection devices used for large equipment and power grid supply in operation are incomplete, posing risks of protection refusal or misoperation during abnormal situations.
Electromechanical personnel are overwhelmed by various electrical equipment failures and anomalies, with no pre-emptive prevention of accidents or orderly maintenance of equipment, resulting in low management efficiency.
The electrical intelligent O&M solution for coal mining enterprises consists of an upper-level system platform, relay protection devices, intelligent monitoring terminals, and power quality monitoring devices. It achieves real-time data collection, monitoring, display, and intelligent analysis of all electrical operation information, focusing on solving issues such as preventing over-tripping, accident prevention, improving power quality, and eliminating electrical safety hazards. The solution aims to ensure "reliable power supply, safe electricity use, intelligent O&M, and efficient management" within coal mining enterprises.
Intelligent O&M model
By integrating systems and coordinating equipment, using centralized control and big data analysis, the system provides intelligent decision-making support for electrical O&M, eliminating accidents at an early stage.
Predictive equipment maintenance
Historical data analysis and future trend prediction shift equipment maintenance from "fault repair+scheduled maintenance" to "predictive maintenance," improving work efficiency and reducing O&M costs.
Fast non-overreaching protection across the entire network
GOOSE technology enables intelligent communication between protection devices, resolving the conflict between relay protection speed and selectivity, achieving fast selective protection within the power supply area.
Orderly management of power quality
The system enables real-time leakage warnings, online monitoring and analysis of power quality, harmonic detection, and coordinated control, effectively eliminating electrical safety hazards and improving regional power supply quality.
The JOYO plant-station integrated automation system can achieve power monitoring for substations at 500kV and below, and independently complete protection and control for substations at 110kV and below. The system integrates functions such as monitoring, control, measurement, waveform recording, relay protection, safety automation devices, communication, and remote control into a unified system. It realizes vertical coverage of scheduling, centralized control, and substation automation systems, and integrates power monitoring, safety management and control, and auxiliary control into one comprehensive monitoring solution, providing an intelligent, economical, and comprehensive automation solution for the power system.
The auxiliary equipment monitoring system, based on technologies such as IoT, big data, intelligent sensing, artificial intelligence, and 3D modeling, integrates and standardizes the resources of various isolated and scattered auxiliary control subsystems. This achieves optimized system resource allocation, information sharing, and seamless business integration between systems, addressing the complexities of substation auxiliary equipment, scattered operational information, and lack of coordination. It enhances the intelligent O&M of substations and supports the construction of new power systems.
The safety management and control platform addresses the issues present in the coal mine power supply O&M processes by creating a systematic safety operation control solution using a combination of "technical defense + human defense" measures. The system enables informatized, mandatory, and intelligent control by using technologies such as microcomputer-based anti-misoperation, mobile internet, IoT, and AI, which ensures the implementation of safety measures, improves efficiency, and optimizes safety supervision and management, and enhances the intrinsic safety of enterprises.
The comprehensive coal mine automation system consists of surface monitoring substations, underground general monitoring substations, underground explosion-proof monitoring substations, and protection control devices. It uses MMS and GOOSE network-sharing technology to enable real-time transmission of four-remote signals and protection interlock signals through a shared fiber optic dual-ring network between the surface and underground. The protection control device is embedded with GOOSE technology, configuring a GOOSE signal interlock relationship between upper and lower-level protection. Faults in the lower level block adjacent upper levels, forming a fast-moving "surface + underground" high-voltage power supply system.
By deeply integrating intelligence and informatization, this solution creates a new pattern for a intelligent and warm mining area, constructing a first-class intelligent coal mine support platform and building an efficient, safe, convenient, green, and healthy campus environment. Fully utilizing 5G, IoT, and digital twin technologies to build new infrastructure for the campus, the solution establishes an intelligent control and operation management platform for surface mining, achieving intelligent interconnectivity, twin control of the mining area, and promoting the construction of a safe, intelligent, green, and happy intelligent mining area.