Abstract: This paper proposes a comprehensive control method for fast and accurate tracking of distributed photovoltaic active power in distribution networks, which addresses the issues of insufficient speed and accuracy, fluctuation in success rate, and difficulty in online consumption. This method is based on variable universe voltage step size fuzzy control for P-U curve interpolation. Compared with the fixed step size disturbance observation method, this method can reduce the tracking rise time by about 95%; compared to fixed universe fuzzy control and variable universe fuzzy control with fixed coefficients, this method can reduce adjustment time and overshoot by about 94% and 84%, respectively. It can enhance the fast and accurate response ability of photovoltaic power, thereby improving the controllability of photovoltaic power and enhancing photovoltaic consumption capacity.