The lightning striking probability for offshore wind turbine blade with salt fog contamination

Abstract

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Discharge path observation and the statistical characteristics of discharge paths for long–air gap discharge for in‐operation wind turbines

“…Simulation tests are another method of studying lightning characteristics. Many scholars have investigated the long‐gap discharge characteristics of scaled wind turbines under static conditions or with full‐sized blades by using simulation tests . However, the long‐gap discharge characteristics of a rotating wind turbine blade have rarely been studied.…”

Damage mechanism of wind turbine blade under the impact of lightning induced arcs

“…In the Ref. 5, the authors find that in the marine environment, when the salt fog is attached to the surface of the blade, the probability of being struck by lightning increases. The closer the salt fog is to the receptor, the greater the lightning strike probability is.…”

Numerical study on explosion characteristics of wind turbine blade under lightning induced arc

“…After the current density is obtained, the distribution of magnetic induction B can be obtained according to Biot-Savart's law shown as (4), and the electric field strength E is obtained according to Ohm's law as (5). where, μ0 is the magnetic permeability, dl is the line integral element, er2 is the unit direction vector between the current element and the point to be calculated, r2 is the distance between the point to be determined and the direction vector, σ is the conductivity, I'(t) is derivative of the current value versus time, c is the speed of light.…”