Stator resistance online identification method independent of rotor position information

The invention discloses a stator resistance online identification method independent of rotor position information, which belongs to the technical field of stator resistance identification and is applied to a stator resistance identification system, the stator resistance identification system comprises a control system, an identification system and a permanent magnet synchronous motor, and the permanent magnet synchronous motor is connected with the identification system. The permanent magnet synchronous motor is connected with the identification system through the control system, and the identification system comprises a construction module. The method comprises the following steps: acquiring a reference position angle of the permanent magnet synchronous motor, and establishing a reference rotating coordinate system in combination with a two-phase static coordinate system; initializing an identification system; the construction module is used for acquiring the electric angular frequency and the output torque