关键词: 风力发电机组, 风轮叶片, 疲劳试验, 共振

Abstract: In view of the complexity of wind turbine blade cross-section shapes and laminate structures， a calculation method of load moment distributions in the blade fatigue tests were deduced to avoid the risks of blade section overloading and the checking purpose for the dangerous sections of the blades were realized. At the same time, the real parameters of the measured blades were obtained by means of the test method, which avoids the test load uncertainty caused by the parameter errors of the real blades and designed blades, and improves the reliability of the tests.

Key words: wind turbine generator system, roter blade, fatigue test, resonance