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Solar Energy on Airports: The Impact of Large Scale Photovoltaic Systems on Distribution Networks
P. Braun, B. Wille-Haussmann, R. Rüther, C. Wittwer
Large Grid-Connected PV Systems, Photovoltaic (PV), Solar Airports, Load Flow Analysis
PV Systems
Subtopic: Grid-connected Applications
Event: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain
Session: 5BV.2.8
3392 - 3395
ISBN: 3-936338-24-8
Paper DOI: 10.4229/23rdEUPVSEC2008-5BV.2.8
0,00 EUR
Document(s): paper


Over the last two decades, many photovoltaic (PV) systems have been connected to electricity distribution networks worldwide. Electricity utilities are often required to promote adaptations to their distribution systems in order to accommodate and to operate this kind of generators. This raises the issue of penetration limits for distributed PV generation. Airport buildings are typically large, isolated and free of shading, and they represent a great potential for the application of large scale PV systems. The energy demand patterns characterized by intensive utilization of air-conditioning, airport building energy demands correlates very good with solar generation profiles. For higher penetration ratios of distributed PV generation, to supply the energy levels demanded on airports, there are some concerns about voltage rise. Depending on the network configuration, severe problems might be faced, which would require costly grid structure upgrading. Also, protection schemes might eventually need adaptation to bidirectional power flows. The aim of this paper is to quantify the potential impact in the conventional distribution network where the airports are located. The results of the load flow analysis show that violations of the tolerated voltage rage only occur in worst-case scenario with zero load and maximal PV input.