The main function of stator assembly and rotor assembly of automobile alternator is to generate electromotive force at both ends of conductor. The stator of automobile alternator refers to the conductor in the magnetic field. The conductor is fixed, and the rotor refers to the electromagnetic coil. Compared with a conductor, a rotor is in motion. The mutual movement makes the magnetic wire cut and the stator coil generate current. This method is mainly based on the theory of electromagnetic-to-electromagnetic conversion. The moving conductor is used to cut the magnetic field lines, and the electromotive force is generated at both ends of the conductor. When the generator runs with a symmetrical load, the armature current of the car is synthesized, thus generating a rotating magnetic field with synchronous speed. Due to the interaction between the stator magnetic field and the rotor magnetic field, automatic torque is generated, which converts the mechanical energy of the prime mover into electrical energy output. Million car purchase subsidy