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Different approaches for communication systems in large-scale PV and CPV installations

: Benoit, P.; Fey, S.; Rohbogner, G.; Kreifels, N.


Nowak, S. ; European Commission:
27th European Photovoltaic Solar Energy Conference and Exhibition, EU PVSEC 2012. DVD-ROM : Proceedings of the international conference held in Frankfurt, Germany, 24 - 28 September 2012
München: WIP-Renewable Energies, 2012
ISBN: 3-936338-28-0
European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC) <27, 2012, Frankfurt>
Fraunhofer ISE ()
Elektrische Energiesysteme; Systemintegration und Netze – Strom; Wärme; Gas; Regenerative Stromversorgung; IKT für Komponenten im Smart Grid; Dezentrale; netzgekoppelte Energiesysteme (Smart Grids)

The importance of communication and control systems of large-scale photovoltaic (LSPV) systems will increase in the future mainly due to two facts: cost reduction potential taking into account the latest technological trends, and higher requirements caused by more sophisticated monitoring and control applications. After analyzing the actual industrial state of the art, this paper identifies new approaches considering latest developments in communication technology as well as research activity on applications with similar requirements. Three new approaches for large-scale photovoltaic tracker (LSPVT) systems are analyzed: based on power line communication (PLC), wireless mesh network (WMN), and an advanced Ethernet solution. Positive and negative aspects are elaborated for each approach and can be taken into consideration for designing new LSPVT systems or demonstration projects. Therefor this paper is to develop a first step to a more adequate, cost-efficient and future-prepared solution for communication and control systems of LSPVT plants.