DC BUS HOTOVOLTAIC SOLAR CONNECTION BOARD OF PHOTOVOLTAIC SYSTEM HAVING DC BUS POWER COMPENSATION AND RIPPLE REDUCTION

摘要

The present invention improves the DC BUS power generation efficiency by compensating the maximum power generation amount in accordance with the voltage difference of the solar array connected in parallel in the partial shade of the sunlight and improves the DC BUS power generation efficiency The present invention relates to a photovoltaic panel of a photovoltaic power generation system having an improvement and a ripple reduction function. In order to solve the above-mentioned problems, a photovoltaic module of a photovoltaic power generation system having a DC BUS power generation efficiency improvement and a ripple reduction function according to the present invention is characterized in that (+) poles of solar arrays are connected, (+) String connecting to the input; A negative (-) string connecting the negative (-) pole of the solar array to the negative input of the inverter; And a compensation unit provided between the (+) strings for compensating for a maximum power generation amount according to a voltage difference of the solar array when partial sunlight is shaded, wherein the compensating unit discharges the charging current in partial shading to compensate the output power A capacitor module disposed between adjacent solar array units; And a current limiting resistor connected to the capacitor module to limit the current.