Patent ID: 9024640
Filing Date: 2015-05-05
Classification: G01R,H02S,Y02E

Abstract:
1. A photovoltaic (PV) system comprising: a PV array comprising a plurality of PV strings configured to generate a string output power responsive to received solar irradiation, with a source conductor and a return conductor being provided from the PV strings; a combiner box having a DC link therein connected to the plurality of PV strings, wherein the plurality of PV strings are connected to the DC link in a parallel arrangement; a PV inverter electrically connected to the combiner box to receive a DC output therefrom, the PV inverter configured to control the DC link voltage; a DC voltage regulator electrically connected to each respective PV string or a group of PV strings on at least one of the source or return conductors and electrically connected to the DC link, wherein the DC voltage regulator is configured to regulate the voltage of a respective PV string or group of PV strings; and a controller to selectively control a voltage output by the DC voltage regulator, the controller being programmed to: