Research On Distributed Data Acqusition And Monitoring System For Grid-Connected PV System

This thesis is established based on the project of "Large Scale Grid-Connected PV Program". The monitoring system software is programmed on the platform of KingView. Applying distribution control theory, the distributed data acqusition and monitoring system was developed. The system is based on RS-485 data bus.The monitoring software is designed under the principle of modularization. The task comprises building the network structure of monitoring system, designing hardware and software.The thesis features the applying of distributed data acquisition theory in the grid-connected PV system. And the monitoring system also integrates COM(Component Object Model) , OPC(OLE for Process Control) and DDE(Dynamic Data Exchange).Finally, this paper analyzes some performance data of grid-connected PV system.