State Grid Optical Transmission Private Network Integrated Solution

Introduction  

As an ultra-large state-owned enterprise vital to China's economic development and energy security, the stable operation of the State Grid relies heavily on a secure, reliable, and intelligent power communication network. The optical transmission network serves as the "main artery" of this communication infrastructure, carrying all critical services from grid production control to enterprise operational management. Leveraging years of deep expertise in power communication, Fholink introduces a new-generation State Grid Optical Transmission Private Network Integrated Solution, designed to build a solid and reliable communication foundation for the construction of a smart grid and energy internet.  

1. Addressing Challenges: Rigorous Requirements of Grid Services for Optical Transmission Networks

The unique characteristics of State Grid services demand that its optical transmission network meet the following core requirements:  

- Ultra-High Reliability: Services such as relay protection and stability control require channel availability of up to 99.999%, preventing grid accidents caused by communication failures.  

- Deterministic Low Latency: Services like line differential protection require end-to-end transmission latency to be stable at the millisecond level, ensuring rapid fault isolation.  

- Service Security Isolation: Strict physical or logical isolation between the production control zone and management information zone is essential to defend against cyber threats and ensure the security of core grid control.  

- Integrated Service Bearer: The network must efficiently carry diverse services, from real-time control to massive data acquisition, on a single platform.  

- Intelligent O&M Management: To manage the vast network scale, rapid fault localization, early warning, and automated operations are necessary to reduce operational costs.  

2. Solution Core: Layered Architecture, Intelligent Bearer  

Fholink’s solution adopts a layered architecture of "Converged Backbone + Intelligent Access", deeply integrating advanced technologies such as SDH/MSTP, OTN, and PTN to build a future-proof optical transmission private network for the power industry.  

2.1 Backbone Transmission Layer: Ultra-High Speed, Large Capacity, High Reliability  

Between the State Grid headquarters, provincial branches, and municipal companies, we deploy OSU-OTN technology to construct backbone ring networks. This layer provides ultra-large bandwidth (with C/L band expansion), ultra-low latency, and hard isolation capabilities, offering physically isolated channels like "dedicated expressways" for core services such as dispatch data wide-area transmission, stability control signals, and cross-regional energy metering, ensuring absolute security and performance.  

2.2 Aggregation Access Layer: Multi-Service, High Flexibility, Easy Scalability  

Between municipal companies and substations/business offices, we deploy enhanced MSTP/MS-OTN devices to build aggregation access networks. This layer perfectly aligns with the diverse needs of grid services:  

- Production Control Zone: Provides exclusive, high-priority transmission channels with guaranteed latency and jitter for services like relay protection and SCADA telemetry through rigid pipelines.  

- Management Information Zone: Implements logical isolation via MPLS-TP and VLAN technologies, flexibly carrying services such as administrative telephony, video conferencing, and office automation.  

- New Service Access: Features robust Ethernet processing capabilities to handle massive IP data flows from smart services like distribution automation, distributed photovoltaic monitoring, and power consumption information collection.  

2.3 Intelligent Network Management System: Visualized, Manageable, Controllable  

We provide a unified intelligent network management platform for end-to-end network management:  

- Visualized Monitoring: Clear overview of network topology, service paths, and performance parameters.  

- Intelligent O&M: AI-based algorithms enable rapid fault localization, root cause analysis, and predictive alerts, shifting from reactive to proactive maintenance.  

- One-Click Service Deployment: Supports rapid end-to-end service provisioning and adjustments, significantly improving operational efficiency.  

3. Solution Value and Advantages  

- Security and Reliability, Fail-Safe Operation: Implements multi-layered protection from device-level redundancy to network-level safeguards (e.g., SNCP, ring protection) and hard service isolation, ensuring "zero interruption" for core grid services.  

- Convergence and Efficiency, Multi-Service Capability: A single network meets the integrated bearer needs of both TDM and IP services, protecting existing investments and seamlessly supporting future service evolution without redundant network construction.  

- Precision Guarantee, Excellent Performance: Meets millisecond-level latency requirements for protection services through precise clock synchronization and optimal routing, ensuring instantaneous delivery of critical commands.  

- Intelligent O&M, Cost Reduction, and Efficiency Improvement: The intelligent network management system significantly reduces the operational burden, shortens service deployment and fault resolution times, and enhances the management level of the grid communication network.  

Conclusion  

Fholink’s State Grid Optical Transmission Private Network Solution not only perfectly addresses current grid communication needs but also lays a forward-looking foundation for the future development of the energy internet. We are committed to collaborating with the State Grid through innovative technologies, exceptional products, and comprehensive services to build a world-class, high-speed, stable, and intelligent power communication infrastructure, safeguarding the construction of a clean, low-carbon, safe, and efficient modern energy system.  

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