MEASUREMENT OF STRESS ON BLADE OF NEDO 500 KW PROTOTYPE WIND TURBINE

Among the components used in a wind turbine the blade is the most dama geable component for fatigue caused by atmospheric turbulence. Therefo r it is necessary to understand the stresses which are occurring on th e operating wind turbine blade. We installed a prototype 500 kW wind t urbine developed by the NEDO (New Energy and industrial technology Dev elopment Organization) in Tappi Wind Park where is very complex terrai n, to study its performance, reliability and durability. Some measurem ents and data analysis of the blade sh-ess have been done. In this pap er, some results of the stress measurement are presented. (C) 1998 Els evier Science Ltd. All rights reserved.