High-voltage double-end line fault positioning method and device and electronic equipment

The invention discloses a high-voltage double-end line fault positioning method and device and electronic equipment, and the method comprises the steps: obtaining wave recording information through relay protection devices at two sides of a line when a fault occurs; presetting a plurality of candidate fault points on the line; calculating the fault point zero sequence voltage of each candidate fault point from two directions based on the recording information by taking the relay protection devices on the two sides of the line as starting points; calculating a difference value of a group of fault point zero sequence voltages corresponding to each candidate fault point to obtain a plurality of voltage difference values; and determining a real fault position based on the candidate fault point corresponding to the minimum value in the plurality of voltage difference values. According to the technical scheme provided by the invention, the positioning accuracy of the fault point of the high-voltage long-distance po