Shadow flicker measurement system, wind turbine comprising such a system, and method using such a system

摘要

A shadow flicker measurement system comprising a sun blocking element and a light sensor, wherein at least one of said sun blocking element and said light sensor is rotatable, such that upon rotation, the relative positions of the sun blocking element and the light sensor substantially continuously change between a first arrangement in which the light sensor can be directly irradiated by the sun and a second arrangement in which the light sensor cannot be directly irradiated by the sun due to the sun blocking element. The invention further relates to a method for operating a wind turbine, a wind turbine hub and a wind turbine.