Based on the inception mechanism of lightning upward leader from wind turbine blade

the critical inception height （CIH）is defined.Around obtained CIH and proportion of CIH

an assessment method of triggered lightning ability of multi-wind turbines based on CIH is proposed.Physical simulation model of lightning strike of wind turbine is established

the assessment method of triggered lightning ability of multi-wind turbines was applied to assess the ability of multi-wind turbines under different numbers

sizes

and thundercloud heights.The research shows that proposal of relevant assessment method provides important support for exploring triggered lightning ability of multi-wind turbines.Under different numbers and sizes of wind turbines

compared to single wind turbine

triggered lightning ability of multi-wind turbines shows a weakening trend.When height of thundercloud drops to a certain value

triggered lightning ability of multi-wind turbines will be stronger than that of single wind turbine when height of thunderclouds is higher.In addition

in scenario of multi-wind turbines

a decrease in number of wind turbines or an increase in size of wind turbines will lead to an enhancement in triggered lightning capability of multi-wind turbine.At the same time

lower height of thunderclouds is

greater enhancement of triggered lightning ability of multi-wind turbines is.The relevant conclusions will provide theoretical support and necessary reference for assessment of triggered lightning ability of multi-wind turbines under different conditions.