System Architecture Adopts Ring Network
The overall control network adopts a ring architecture, combining the electrical protection system, excitation system, plant DC, plant power, and water turbine control system. This DCS-based ring topology enhances information exchange and system resilience, ensuring fast, orderly data transmission throughout the control system of hydro power plant.
Single-Ring Network at Each LCU
Each Local Control Unit (LCU) is equipped with a single-ring Ethernet network using the CISCOM7120 industrial switch. This simplifies on-site wiring while allowing real-time data collection and preliminary processing. It ensures timely communication between on-site control equipment and central monitoring systems within the hydro power plant control system.
Formation of Multi-Ring Topology
Multiple LCU-level single rings are connected with the monitoring center’s ring to form a multi-ring network topology. This structure offers high communication reliability—if any individual ring fails, data transmission is rerouted automatically through backup paths, preventing single points of failure and ensuring operational continuity.
Industrial-Level 4 EMI Immunity
All devices in the system comply with industrial Level 4 electromagnetic immunity standards. Through advanced shielding and signal filtering technologies, the system resists interference from generators and transformers, providing stable and accurate signal transmission across the hydroelectric power plant environment.
Real-Time Data Acquisition Function
The communication network features real-time data acquisition capabilities, supporting the rapid collection of key operational parameters such as temperature, pressure, and flow. This enables precise, up-to-the-minute monitoring and analysis of turbine and generator performance.
High-Bandwidth Signal Transmission
The system supports high-bandwidth transmission to handle large volumes of operational and monitoring data. This ensures that even complex data streams are transmitted without delay, supporting real-time decision-making and control across the hydro power plant control system.
Expandability of the System
COME-STAR’s solution is designed with future scalability in mind. It allows easy access to new devices and functional modules as plant operations evolve—without requiring major infrastructure overhauls. This supports long-term flexibility and reduces upgrade costs for hydro control systems.
Redundant Backup Technology
Redundant devices and communication links are included in the architecture to ensure uninterrupted operation. If a key component or link fails, the backup system automatically activates, maintaining continuous communication and minimizing system downtime in the hydroelectric energy power plant.
