Monitoring method and device of wind electricity unit thunder stroke times

Abstract

The invention discloses a monitoring method of wind electricity unit thunder stroke times. The monitoring method comprises the steps that (1) temperature change values and temperature raising time data of all anti-thunder modules in a wind electricity unit are collected, and the state data values of the environment where the anti-thunder modules are located are collected; (2), whether the anti-thunder modules are struck by thunder or not is analyzed and judged in combination with temperature data signals of all the anti-thunder modules and state data signals of the environment where the anti-thunder modules are located collected in step (1), and the accumulated thunder stroke times of all the anti-thunder modules are calculated. The invention furthermore discloses a monitoring device of the wind electricity unit thunder stroke times. The monitoring device comprises the anti-thunder modules, a data collection module and a data processing module. The thunder stroke times of the anti-thunder modules are monitored through monitoring of the temperature change of the anti-thunder modules; and targeted anti-thunder design can also be achieved according to the collected data signals, impact and influences of a draught fan on a control system due to thunder stroke are reduced, the thunder stroke risk of the draught fan is lowered to a certain extent, and operation safety and stability of the wind electricity unit are improved.

Description

technical field [0001] The invention relates to the technical field of lightning protection for wind turbines, in particular to a method and device for monitoring the number of lightning strikes of wind turbines. Background technique [0002] With the continuous development of the field of wind power generation, the installed capacity of wind farms is increasing year by year, and the distribution of wind farms is becoming more and more extensive. The proportion of wind power generation is increasing, and it has gradually become a conventional energy source. As the installed capacity of wind power increases year by year, the environment in which wind turbines are located is becoming more and more complex, especially the proportion of mountainous and marine environments is gradually increasing, which requires more complete lightning protection and lightning monitoring equipment for wind turbines. Due to the rapid development of wind power in the past few years, many wind turbi...

AI Technical Summary

Problems solved by technology

And when the blade air-termination rotates away from the discharge channel, it will cause the discharge channel of the lightning current to drift, that is, the upward or downward discharge channel will leave the air-termination, thereby causing the failure of the lightning-termination, and at this time it will be Induced lightning current around the unit

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