A study on the cable grounding condition in wind turbines under direct lightning

Chen, Hongcai1; Zhang, Yang2; Du, Yaping2

10.1109/APL.2019.8815999

2019

978-1-7281-1696-9

11th Asia-Pacific International Conference on Lightning, APL 2019

1-6

12-14 June 2019

2/F, Block Z, Hung Hom, Kowloon, Hong Kong, China

Institute of Electrical and Electronics Engineers Inc.

Wind turbine is frequently damaged by lightning strikes. Most of damages occur in the control systems. This paper investigates the influence of grounding conditions of the cable sheath on the voltage distribution in control cables. Despite of simplified circuit method in previous WT analysis, this paper adopts a vector fitting enhanced PEEC method to implement a simulation with detailed electromagnetic couplings. Four different grounding conditions are analyzed. It shows that grounding condition has significant influences on the voltage distribution. Grounding at both ends of the WT tower shows the best performance in the view of lightning protection. Meanwhile, the proximity effect among cables will lead to uneven voltage distributions among them. It should be considered when complex cable configuration is used.
© 2019 IEEE.

lightning protection wind turbine grounding condition control cable

第一

EI

20193807460478

Cables ; Lightning protection ; Voltage distribution measurement ; Voltage dividers ; Wind turbines

Wind Power (Before 1993, use code 611 ):615.8 ; Electric Equipment:704.2 ; Accidents and Accident Prevention:914.1 ; Electric Variables Measurements:942.2

EV Compendex

1.Academy for Advanced Interdisciplinary, Studies Southern University of Science and Technology, Shenzhen, China
2.Department of Building Services Engineering, Hong Kong Polytechnic University Hung Hom, Kowloon, SAR, Hong Kong

Chen, Hongcai,Zhang, Yang,Du, Yaping. A study on the cable grounding condition in wind turbines under direct lightning[C]:Institute of Electrical and Electronics Engineers Inc.,2019:1-6.