Invention Grant
US08471574B2 Method and device for detecting underperforming PV modules in a PV system by using disconnect switches 有权
通过使用断开开关检测PV系统中表现不佳的PV模块的方法和装置

Method and device for detecting underperforming PV modules in a PV system by using disconnect switches
Abstract:
A measuring method for determining an output drop of a PV unit is provided. The PV unit is arranged within a photovoltaic system comprising a plurality of electrically parallel-connected PV units. Each PV unit can be removed from the parallel circuit by a switching device. Further, a total current measuring device for measuring the total current through all PV units of the parallel circuit is provided. The defective PV unit is determined in an evaluation unit by the connection and disconnection of a disconnect switch.
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