As solar energy systems scale up, efficient monitoring and intelligent control at the edge become critical for improving reliability and maintenance efficiency. In this case study, we showcase how the ARMxy series industrial controller, combined with OpenPLC, powers smart string-level monitoring and environmental management in a 100MW solar PV station.
? Application Scenario
In a large-scale 100MW photovoltaic power station, the field includes multiple combiner boxes collecting current and voltage from dozens of PV strings. Accurate, real-time string-level monitoring is crucial for early fault detection, thermal management, and long-term efficiency optimization.
⚙️ System Configuration
- ARMxy Edge Controller Acts as the central control unit running the OpenPLC logic.
- X-RS485 Communication Module Communicates with multiple string monitoring units (SMUs) over Modbus RTU.
- Y-AI Analog Input Module Monitors temperature and humidity inside the combiner box using direct analog sensors.