Photovoltaic system using step-up converter

The present invention relates to a photovoltaic power generation system using a step-up converter. The solar power system of the invention disclosed is basically constitutes a solar cell module, up-converter, a power storage module, and an inverter control module that controls each component. Step-up converter according to a characteristic aspect of the present invention, when supplied with a first direct current power outputted from the solar cell module, and the step-up in the second direct-current power supply through the switching element and the isolation transformer, a first DC power and second DC power supply smoothing, and outputs it. With the up-converter configured the isolation transformer as in the present invention, it may continuously be adjusted to the charge current to be applied to the power storage module, a power conversion efficiency of the step-up converter (step-up DC-DC Converter), as well as a reduced service life of the battery It can be prevented. Photovoltaic, solar cells, up-converter, isolation transformer