Abstract
Lightning disaster is one of the main factors threatening the safe and stable operation of wind farms. In order to reduce the lightning failure rate of offshore Wind Turbine (WT), the response patterns and influencing factors of transient overvoltage must be accurately analyzed. First, the method of numerical calculation of electromagnetic field was used to establish a new multi-wave impedance model of offshore WT combined with the marine grounding environment and the effect of blade rotation angle. Then, with ATP-EMTP software, the offshore WT simulation model was established to analyze the effect of lightning transient potential under the various conditions, such as ocean depth, blade length, tower height and rotational position of blade. The wave process theory was adopted to analyze the reasons. It was shown by the simulation that the transient potential of WT appeared obvious oscillation characteristics, and the transient potential oscillation of offshore WT was more severe than onshore WT. According to the study, a method was proposed to accelerate the oscillation attenuation of offshore WT. The results of the study would be a reference basis for lightning protection design of the offshore WT.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
