Partial discharge detection method and system for 10kV switch cabinet of distribution room

The invention provides a distribution room 10kV switch cabinet partial discharge detection method comprising the following steps: receiving partial discharge signals collected by two or more ultrahigh frequency sensors on 10kV switch cabinets correspondingly deployed respectively, and receiving power frequency signals collected by a power frequency signal recognizer in a switch cabinet secondary chamber correspondingly deployed; based on the power frequency signal, performing anti-interference processing on each received partial discharge signal; according to each partial discharge signal after the anti-interference processing, respectively constructing a corresponding PRPD atlas; and selecting a PRPD map meeting a predetermined condition from all the constructed PRPD maps, and respectively determining the type of the 10kV switch cabinet forming the corresponding selected PRPD map and the type of the partial discharge signal generated by the 10kV switch cabinet in combination with a trained partial discharge