Transmission system and method for mechanical part and power electronic assembly

The invention relates to the technical field of switch control, and discloses a transmission system and method for a mechanical part and a power electronic component, the system comprises a mechanical transmission shaft, a starting signal generator and a control unit, the starting signal generator comprises a turntable and at least one optical fiber collimator, one end of the mechanical transmission shaft is connected with a mechanical part of the power electronic on-load tap-changer, the other end of the mechanical transmission shaft is connected with the turntable, the mechanical transmission shaft is used for driving the turntable to rotate when the mechanical part acts, and the control unit controls whether to trigger a power electronic component of the power electronic on-load tap-changer or not according to the state of the received optical signal. By utilizing the advantages of stable transmission and strong interference resistance of optical signals, the mechanical state is monitored in real time by i