Photovoltaic equipment leakage current generation mechanism and leakage current tracing method based on mechanism model

The invention relates to a leakage current detection method, in particular to a leakage current generation mechanism of photovoltaic equipment and a leakage current tracing method based on a mechanism model, and the method comprises the following steps: S1, detecting line data in a line of the photovoltaic equipment based on a current transformer, and judging whether an electric leakage phenomenon exists according to the line data; s2, sending the line data acquired by the current transformer to a wireless transmission module; and S3, the wireless transmission module analyzes and processes the line data and carries out alarm processing according to an analysis and processing result. The MPPT control method based on improved firefly algorithm optimization outputs a stable power supply condition for the photovoltaic equipment, the control speed of the MPPT control method can be improved, leakage current in the photovoltaic equipment is detected through a method of cooperative detection of the current transforme