Distributed Power Coordination Device PBox6220-PQCT

Overview

The Distributed Power Coordination Device is a power regulation control terminal for distributed PV and battery energy storage stations. Built around an industrial-grade ARM processor, the PBox6220-PQCT integrates AGC (Automatic Generation Control) and AVC (Automatic Voltage Control) algorithms with a response time under 200ms, meeting grid dispatching requirements for fast regulation of distributed renewable energy. The device communicates with dispatch master stations via IEC 61850, IEC 104, or Modbus protocols while simultaneously managing inverters, storage PCS units, and grid-tie cabinets on-site.

Core capabilities include: group control of 100+ devices for coordinated start/stop and power dispatch; anti-reverse power flow control with real-time monitoring of grid-tie point power direction and magnitude; and voltage regulation that automatically adjusts reactive power output based on local grid conditions. The device supports local edge computing, maintaining independent operation under preset strategies even when communication with the dispatch center is interrupted, ensuring safe and stable operation of distributed power sources.

Protocols

• IEC 61850 (GOOSE, MMS)
• IEC 60870-5-101/104
• Modbus RTU/TCP
• OPC UA
• MQTT
• CAN / CANopen
• DLT645
• PROFINET (via 400+ library)
• BACnet (via 400+ library)

Certifications

• CE
• ISO 9001 / ISO 14001 / ISO 45001
• State Grid Electric Power Research Institute (China)
• China Southern Grid Certification