1. Local Management :

• Monitoring and Control : Manages the operation of individual solar units or sections within the solar park as directed by the Master Controller.
• Data Collection : Gathers performance data from its local area, including energy production, panel temperatures, and system status.

2. Communication :

• Master-Slave Communication : Receives commands and instructions from the Master Plant Controller and sends back status updates and data.
• Data Synchronization : Ensures that data collected from the solar units is synchronized with the Master Controller for cohesive system management.

3. Performance Optimization :

• Efficiency Enhancement : Implements algorithms for optimizing the performance of the solar panels or inverters within its jurisdiction.
• Fault Detection : Identifies and reports faults or inefficiencies in the local section to the Master Controller.

4. Operational Control :

• Setpoint Adjustment : Adjusts operational setpoints such as voltage and current based on directives from the Master Controller.
• Remote Operations : Allows for remote control and adjustments of the solar units through the Master Controller interface.

5. Safety and Reliability :

• Emergency Shutdown : Performs emergency shutdowns or safety actions as instructed by the Master Controller in case of system faults or hazards.
• Alerts and Notifications : Sends alerts for maintenance or operational issues to the Master Controller.

6. Local Data Logging :

• Historical Data Storage : Keeps a log of historical performance data and operational events for troubleshooting and analysis.

Communication

• Protocols : Uses standard communication protocols such as Modbus, DNP3, or IEC 61850 for integration with the Master Controller.
• Data Transmission : Periodic updates on performance metrics, faults, and status.

Performance Metrics

• Energy Production : Tracks and reports energy produced by the solar panels in its section.
• System Health : Monitors the health of the panels, inverters, and other equipment.

Control Commands

• Operational Adjustments : Receives and implements adjustments for voltage, current, and other operational parameters.
• Maintenance Requests : Alerts for required maintenance or repairs based on performance data.

Benefits

• Localized Control : Allows for precise management of different sections within a large solar park.
• Improved Efficiency : Enhances the performance and reliability of solar units by implementing localized optimization strategies.
• Enhanced Communication : Facilitates smooth and efficient operation through effective coordination with the Master Controller.

The Slave Plant Controller plays a crucial role in ensuring that each part of the solar park operates efficiently and in harmony with the overall system, guided by the directives from the Master Plant Controller.