Photoelectric slip ring and wind turbine

Abstract

The invention provides a photoelectric slip ring and a wind power generation unit. The photoelectric slip ring comprises a conductive slip ring and an optical slip ring; the conductive slip ring comprises a conductive stator part and a conductive rotor part that partially penetrates in the conductive stator part; the conductive rotor part is provided with a hollow shaft; the conductive stator part is in contact with the conductive rotor part and is conductive; the optical slip ring is arranged in the hollow shaft; the optical slip ring comprises an optical slip ring stator part, an optical slip ring rotor part, a first transmission optical fiber, a second transmission optical fiber and a connecting bearing; the optical slip ring stator part and the optical slip ring rotor part are connected through the connecting bearing; the first transmission optical fiber is arranged on the optical slip ring stator part; the second transmission optical fiber is arranged on the optical slip ring rotor part; the optical slip ring rotor part is connected with the conductive slip ring rotor part and turns along with the conductive slip ring rotor part; the first transmission optical fiber is connected with the conductive stator part; the second transmission optical fiber is connected with the conductive rotor part; and the end part of the first transmission optical fiber is opposite to the end part of the second transmission optical fiber. The photoelectric slip ring is higher in reliability.

Description

technical field [0001] The invention relates to wind power generator communication equipment, in particular to a photoelectric slip ring and a wind power generator set. Background technique [0002] The contact slip ring used in existing wind turbines transmits 24VDC / 1A analog signals. Under the condition of impeller vibration, it is easy to cause the problem of poor contact between the brush wire and the slideway, resulting in an increase in the contact resistance between the slideway and the brush wire. Large, the signal transmission is distorted or even lost; at the same time, because the impeller is in an atmospheric environment susceptible to electromagnetic interference, it is difficult to suppress electromagnetic interference, so it is easy to cause communication failures in the wind turbine. In the communication failure of the wind turbine The failure rate caused by the communication failure of the traditional contact slip ring reaches 70% to 80%. Contents of the i...

AI Technical Summary

Problems solved by technology

[0003] The embodiment of the present invention provides a photoelectric slip ring and a wind power generating set to solve the problem that the conductive slip ring is used for signal transmission in the wind generating set and is easy to be distorted

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