Confirmation of Photovoltaic Generation Through Recognition of Inverter Output Signals

This letter proposes a method to help confirm the existence of photovoltaic (PV) generation through the characteristic recognition of inverter output signal. While the approach helps to identify the power generation sources, it not only benefits the engineers to grasp the operation scenario of the supplying-power, but also contributes to prevent the inappropriate financial support of government funding due to the intrusion of non-PV generation.