POWER CONTROL APPARATUS FOR SOLAR CELL

摘要

The present invention relates to a power control apparatus for a solar module. The power control apparatus comprises: a solar module which outputs power generated from received sunlight through a positive terminal and a negative terminal; a power converting unit which is connected to the positive terminal and the negative terminal to convert power generated by the solar module into supply power corresponding to a supply system; and a reverse polarization unit which applies a first electrokinetic potential respectively set to the positive and negative terminals of the solar module when power output by the solar module reaches set lowest power and releases the first electrokinetic potential from being applied to the positive and negative terminals of the solar module when power output by the solar module reaches set reference power, while detecting power output by the solar module. The power control apparatus for a solar module can apply a positive or negative voltage with the electrokinetic potential to the positive and negative terminals of the solar module when sunlight is not radiated to induce reverse polarization, thereby suppressing a reduction of power generation efficiency of the solar module.