Patent ID: 8952569
Filing Date: 2015-02-10
Classification: G05F,H01L,H02J,H02S,Y02E

Abstract:
1. A photovoltaic power generation system comprising: a solar cell module configured to include a plurality of solar cell row groups divided into groupings of the plurality of solar cell row groups, each of the plurality of solar cell row groups being configured to have at least one solar cell row of a plurality of solar cells and output a current and a voltage from the at least one solar cell row, the solar cells belonging to each of the plurality of solar cell row groups being connected in series to one another, the solar cells belonging to a first solar cell row group being electrically separated from the solar cells belonging to a second solar cell row group in a solar cell module; a plurality of signal control units connected to the plurality of solar cell row groups, respectively, and each of the plurality of signal control units tracking a maximum power based on the current and the voltage output from each of the plurality of solar cell row groups and outputs the maximum power; a plurality of sensing units connected between each of the plurality of solar cell row groups and each of the plurality of signal control units, sense currents output from the plurality of solar cell row groups, and output the sensed currents to the plurality of signal control units; and a plurality of amplification units connected between each of the plurality of solar cell row groups and each of the plurality of signal control units, and comprising a transistor, wherein each of the plurality of signal control units compares an amount of current sensed by each of the plurality of sensing units with a setting value, and applies a control signal to a corresponding amplification unit of the plurality of amplification units, when the amount of current is less than the setting value, the corresponding amplification unit corresponding to a sensing unit which outputs the amount of current less than the setting value, and the corresponding amplification unit amplifies a current input thereto and outputs the amplified current to an output terminal of a signal control unit.