On-line Monitoring System Based on Open Source Platform for Photovoltaic Array

摘要： To evaluate the performance of photovoltaic (PV) power plants, it is necessary to effectively monitor PV power plants. An on-line monitoring system based on open-source platform is presented for monitoring and managing the PV power plant effectively and economically. The proposed monitoring system consists of data acquisition, transmission part, data gateway, and on-line monitoring center. A PV diagnosis approach based on FFA-SVM for array fault is implemented in the gateway. The on-line monitoring center based on the platform ubidots is designed for displaying the data and monitoring PV arrays. Experiment results show that the system can realize abundant data visualization and accurate PV fault diagnosis.