Alternating current and direct current electric leakage detection method based on flexible direct current voltage regulating device

The invention relates to the field of alternating current and direct current electric leakage detection, and discloses an alternating current and direct current electric leakage detection method based on a flexible direct current voltage regulating device, the flexible direct current voltage regulating device comprises a rectifying device and an inverting device, the rectifying device is connected in parallel to a transformer side, the inverting device is connected in parallel to a load side, and the rectifying device and the inverting device are connected through a direct current bus. According to the technical scheme, the method comprises the following steps of 1, collecting currents of all phases of a collecting point 1 and currents of all phases of a collecting point 2 of the rectifying equipment in real time; step 2, adding the current data of the acquisition point 1 and the acquisition point 2; 3, filtering the added current data by using a filter 1 to obtain filtered data 1, and filtering the added cur