Fault positioning method, device and equipment applied to wind power feeding system

The invention discloses a fault positioning method, device and equipment applied to a wind power feeding system. The method comprises the steps that when a negative pressure providing instruction is received, a theoretical switching signal at a wire feeder port is determined based on a negative pressure detection switch; wherein the negative pressure providing instruction is an instruction generated when the negative pressure fan provides negative pressure for the wind power cut tobacco feeding pipeline; determining a first negative pressure value based on the first negative pressure measuring device, and determining a second negative pressure value based on the second negative pressure measuring device; and the fault position of the wind power feeding system is determined based on the theoretical switching signal, the first negative pressure value and the second negative pressure value, so that the technical problem of low fault site positioning accuracy when the fault of the wind power feeding system is det