“The modeling method of photovoltaic array efficiency distribution characteristics based on non parametric estimation is introduced, and its research progress in the field of intelligent operation of photovoltaic power plants is introduced. The research team established a photovoltaic array efficiency distribution model, explored the issue of threshold interval division of operating status, and verified that the efficiency output distribution characteristics can effectively characterize the operating status, providing a solution to the problem of state division uncertainty caused by the random fluctuation of photovoltaic array output.”