Switched reluctance motor power generation fault-tolerant power converter and fault-tolerant method

The invention discloses a switched reluctance motor power generation fault-tolerant power converter and a fault-tolerant method, which are suitable for the field of switched reluctance motor power generation. Each phase of the switched reluctance motor power generation fault-tolerant power converter is provided with only one switch tube in an excitation loop in an excitation stage, each phase is provided with only one switch tube in a follow current loop in a follow current stage, only one diode in a power generation loop in a power generation stage, and a special fault-tolerant switch tube is additionally arranged on each phase of a four-phase loop. Meanwhile, three common fault-tolerant switch tubes connected with the special fault-tolerant switches in series are arranged, only one switch tube or diode works in each phase at any normal working stage of the device, electric energy loss in the operation of the motor is reduced, electric energy is saved, topology and fault-tolerant control are reconstructed ac