An encoder communication system for wind turbines and wind converters

Abstract

The invention provides an encoder communication system for a wind driven generator and a wind power converter. The encoder communication system comprises an encoding board and a decoding board, wherein an encoder is installed on the wind driven generator, and the wind driven generator is connected with the encoding board through the encoder; a control circuit is arranged on the wind power converter, and the wind power converter is connected with the decoding board through the control circuit; and the encoding board is connected with the decoding board through an optical fiber. The encoder communication system for the wind driven generator and the wind power converter provided by the invention adopts the photovoltaic conversion technology to convert an electric signal output by the encoder into an optical signal, and the optical signal is transmitted by the optical fiber, so that the signal of the encoder can be transmitted for a long distance and has stronger anti-interference ability; and the encoding and decoding technology is used for converting multipath signal transmission into single-path optical fiber signal transmission and increasing the state information of the encoder of the wind driven generator, so as to save the cost and improve the reliability of the wind driven generator.

Description

technical field [0001] The invention relates to the field of wind power generation, in particular to an encoder communication system for a wind power generator and a wind converter. Background technique [0002] Encoders traditionally used in communication between wind turbines and wind converters are generally based on direct electrical signal transmission, and 8-core shielded wires are used for data transmission throughout the process. When the transmission distance is long, it is difficult to communicate with power cables. Distinguished, the signal is susceptible to interference and the signal loss of the encoder occurs, and the signal strength attenuates greatly during long-distance transmission. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides an encoder communication system for wind generators and wind converters, which has the characteristics of strong anti-interference ability, short signal delay and ...

AI Technical Summary

Problems solved by technology

[0002] Encoders traditionally used in communication between wind turbines and wind converters are generally based on direct electrical signal transmission, and 8-core shielded wires are used for data transmission throughout the entire process. When the transmission distance is long, it is difficult to communicate with power cables. Distinguished, the signal is susceptible to interference and the signal loss of the encoder occurs, and the signal strength attenuates greatly during long-distance transmission

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