Photovoltaic MPPT (Maximum Power Point Tracking) control method based on differential flat control and improved grey wolf algorithm

The invention provides a photovoltaic MPPT (Maximum Power Point Tracking) control method based on differential flat control and an improved grey wolf algorithm, which comprises the following steps of: taking the output voltage of a photovoltaic array as the position of a grey wolf in an EDGWO (Extended Data Gradient Wavelet Optimization) algorithm, and tracking the output voltage of the photovoltaic array by using the EDGWO algorithm so as to preliminarily position a maximum power point; the output voltage of the photovoltaic array in the EDGWO algorithm is directly tracked by using a differential flat control theory, so that a voltage value corresponding to the maximum power point is found, and the tracking of the maximum power point is realized; the method has the following beneficial effects that differential flat control and exponential attenuation grey wolf algorithms are fused, maximum power tracking is carried out in a mode of directly controlling the output voltage of the photovoltaic array, and the m