PHOTOVOLTAIC DEVICE

The invention relates to a photovoltaic device, comprising a photovoltaic module (12) having solar cells, the MPP means (42) for determining an electric power maximum of the photovoltaic module (12) and for setting an associated current-voltage working point for an inverter (14) connected downstream...

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Bibliographic Details
Main Authors KRON, GREGOR, MILDENSTEIN, TOBIAS, MIELCAREK, PAUL, VOLZ, WOLFGANG
Format Patent
LanguageEnglish
French
German
Published 25.02.2015
Subjects
BASIC ELECTRIC ELEMENTS
CONTROLLING
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
PHYSICS
REGULATING
SEMICONDUCTOR DEVICES
SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
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Summary:The invention relates to a photovoltaic device, comprising a photovoltaic module (12) having solar cells, the MPP means (42) for determining an electric power maximum of the photovoltaic module (12) and for setting an associated current-voltage working point for an inverter (14) connected downstream. A detection unit (40) is associated with the MPP means (42) and is designed to detect a cell voltage of a plurality of solar cells and to generate a control signal for the MPP means (42) such that, in response to a detected voltage change of a cell voltage of a solar cell relative to the cell voltages of the others of the plurality of solar cells of the photovoltaic module (12), by the action of the control signal, a power change, particularly power decrease of the photovoltaic module (12), is triggered that effects a shift of the current-voltage working point.
Bibliography:Application Number: EP20090780809