COMPOSITES SCIENCE AND ENGINEERING ›› 2024, Vol. 0 ›› Issue (12): 75-79.DOI: 10.19936/j.cnki.2096-8000.20241228.011

• APPLICATION RESEARCH • Previous Articles     Next Articles

Research of the influence of milled carbon fiber pollution on lightning protection of wind turbine blades

XU Jun1, CUI Xiaopeng1, WANG Xiangdong1, LI Chengliang1,2*, HUANG Huixiu1   

  1. 1. Sinoma Wind Power Blade Co., Ltd., Beijing 100192, China;
    2. School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
  • Received:2023-09-12 Online:2024-12-28 Published:2025-01-14

Abstract: In order to analyze the influence of milled carbon fiber pollution on lightning protection of GFRP, simulation analysis of electrostatic field based on FEM was established. Furthermore, high volt lightning tests were implemented with GFRP sample (0.5wt% milled carbon fiber). The results showed that the GFRP skin/PVC core material area and the pure skin area did not undergo breakdown in the high volt lightning tests. In the experiment, multipleting flashovers of milled carbon fibers were observed at the shallow surface of the fiberglass. The comparative analysis between numerical simulation and experimental results shows that the phenomenon is consistent with the conclusion in the simulation results that induced flashover may occur when the milled carbon fiber depth is less than 0.3 mm, and cannot occur at greater depths.

Key words: wind turbine blade, GFRP, milled carbon fibers, lightning protection

CLC Number: