PHOTOVOLTAIC POWER GENERATION SYSTEM AND MAXIMUM POWER POINT TRACKING METHOD ITHEREOF

摘要

The present invention relates to a photovoltaic power generation system, and more particularly, to a photovoltaic power generation system including a current sensing unit for sensing and outputting a current at one output terminal of a solar cell panel, a voltage sensing unit for sensing and outputting a voltage between both output terminals of the solar cell panel, Wherein the controller is configured to output a pulse signal having a duty ratio of a predetermined magnitude to each of the current sensing unit and the voltage sensing unit and output a pulse signal to the power regulator at each maximum power point tracking period, The panel output current and the panel output voltage of the solar cell panel are determined by using the signal from the voltage sensing unit, and the panel power is calculated using the determined panel output current and the panel output voltage to perform the maximum power point tracking operation And a maximum power point tracking control device to be implemented.