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The effect of tilt angle and voltage conditions on PV system performance - an experimental investigation

Der Einfluß von Neigungswinkel und Betriebsspannungsbedingungen von PV-Modulen auf die Leistung von PV-Systemen
: Schmidt, H.; Jantsch, M.; Kaiser, R.; Roth, W.; Stoll, M.

Luque, A.; Sala, G.; Palz, W.; Dos Santos, G.; Helm, P. ; European Commission:
Tenth E.C. Photovoltaic Solar Energy Conference '91. Proceedings
Dordrecht: Kluwer Academic Publishers Group, 1991 (EUR 13807)
ISBN: 0-7923-1389-5
Photovoltaic Solar Energy Conference <10, 1991, Lisbon>
Conference Paper
Fraunhofer ISE ()
annual course; Batteriespannungsanpassung; battery adaption; beste festeingestellte Spannung; Betriebsspannung; experimental investigation; experimentelle Untersuchung; frequency distribution; Häufigkeitsverteilung; jahreszeitlicher Anpassungswirkungsgrad; jährlicher Anpassungswirkungsgrad; MPP-Spannung; MPP-Tracking; MPP-voltage; Neigungswinkel; operating voltage; photovoltaic module; PV-Modul; statistical analyse; statistische Analyse; system performance; Systemverhalten; tilt angle

Five PV-Modules at different tilt angles were installed and connected to an automatic measurement equipment. The I/V-characteristics, temperatures and insolation values are continued to be measured in a two minute timesteps since autumn 1989. Stored into a database, all the data is available for detailed analysis. The results up to now include -tilt angle influence on energy yield and its annual course, -energetically weighted MPP voltage distribution and its annual course, -fixed voltage adaptation and best fixed voltage, annual and seasonal adaptation efficiency, -energy yield as a function of fixed voltage and tilt angle compared with MPP tracking at optimum tilt angle.