High-efficiency self-excitation type vehicle generator

The invention provides a high-efficiency self-excitation type vehicle generator, which comprises a motor stator and a motor rotor. The motor stator has a set of n windings. The windings are connected in parallel. Each phase of the windings is connected in series with a capacitor and a switch. The capacitor is connected in series with each phase of the windings and is arranged on each phase of the windings. The switch is connected in series with each phase of the windings and is arranged under each phase of the windings. On the windings, an analog controller is connected with the windings. The analog controller comprises n silicon controlled rectifier diodes, a filter capacitor, a load impedor, a freewheeling diode, a power switch, a trigger circuit and a control signal generator. The n silicon controlled rectifier diodes are connected in parallel. One ends of the n silicon controlled rectifier diodes are connected with n phases of stator windings respectively, and the other ends of the n silicon controlled re