A power converting apparatus and a photovoltaic module including the same according to another embodiment of the present invention include: a bidirectional converter configured to convert DC power input from a DC source into a half sine wave voltage; an unfolding inverter configured to allow a half sine wave voltage to pass therethrough by a plurality of switching elements during one half cycle of a grid voltage, and to reverse the half sine wave voltage during the other half cycle so that the half sine wave voltage is converted into AC power; and a power factor correction unit configured to control a power factor by controlling a phase of the grid voltage and a phase of the AC power output from the unfolding inverter. Accordingly, it is possible to control a power factor simply.

In a section in which power output from the bidirectional converter is smaller than 0 or negative in polarity, current correction may be performed to make the half sine wave voltage have an opposite polarity. Accordingly, it is possible to control a power factor.

A current corresponding to the half sine wave voltage may include a negative polarity current only in a section where current correction is performed, and include a positive polarity current in other sections. Accordingly, it is possible to control a power factor.

A current from the bidirectional converter may flow to an output terminal in a normal section and flow to an input terminal in a section where current correction is performed. Accordingly, it is possible to control a power factor.