Power equipment partial discharge positioning system and method based on time difference matching

The invention relates to a power equipment partial discharge positioning system and method based on time difference matching, the system comprises a partial discharge simulation unit, an acquisition unit and a real measurement unit, and the method comprises the following steps: arranging a plurality of ultrahigh frequency sensors at corresponding positions of a measured area; carrying out a simulation discharge test on all measurement points of the measured area, and collecting simulation partial discharge signals corresponding to all the measurement points by using a plurality of ultrahigh frequency sensors; constructing a time difference database of the measured area according to the time difference vector between the simulated partial discharge signals corresponding to each measurement point; acquiring real partial discharge signals in real time by using a plurality of ultrahigh frequency sensors, and calculating a time difference vector corresponding to the real partial discharge signals; and matching to