Wired and wireless remote control of PV system

Authors:
Mohamed Zahran;Yousry Atia;Abdullah Alhosseen;Ihab El-Sayed
Affiliations:
Electronics Research Institute, PV Dept., Giza, Egypt and Jazan University, Faculty of Engineering, Electrical Eng. Dept.;Electronics Research Institute, PV Dept., Giza, Egypt;Jazan University, Faculty of Science;Jazan University, Faculty of Engineering, Industrial Engineering Dept., KSA and Suez Canal University, Faculty of Industrial Education, Suez
Venue:
WSEAS Transactions on Systems and Control
Year:
2010

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Abstract

This paper describes a recent work developed for the real-time diagnostic monitoring system of photovoltaic (PV) power plant. It aims to create a stand-alone photovoltaic generator that can be easily relocated in remote areas to evaluate the feasibility of photovoltaic energy applications. For research and development purposes, the main goal of this work is to develop a cost effective and modern technique for monitoring and control the variable of the PV system. A set of sensors were installed to monitor the electric current and voltage of the energy generated, the energy stored and the energy used by the loads that may be connected to the system. Other parameters like solar radiations and temperatures of the photovoltaic module were monitored. In order to reduce off-site analysis effort, reports on PV plant performance are generated on request for user defined time period. User interface provides information on PV plant operation, displayed as digital values, slide bars and graphs. A proposed wireless system configuration is presented also in this paper using NI WSN 3202 nods and WSN-9791 module and NI WAP3711 Industrial Access Point. The novelty of the system is that it can publish data over the Internet using LabVIEW Web Server capabilities and deliver the operation performance data for the end user location. Finally, a measurement and communication hardware was installed to interface the system developed with a conventional computer. A PC -microcontroller interface based software and hardware is implemented as a wired monitor and control of PV system. In this way, the performance of the overall system in real rural conditions could be evaluated efficiently. Visual software that reads, visualizes and saves the data generated by the system was also developed by means of the LabVIEW programming environment.