United Technologies Research Center 8-kW prototype wind system. Final test report

Abstract

During atmospheric testing, the machine survived wind speeds of 30.8 m/s (69 mph) without incurring damage and proved it was capable of meeting the de}ftgn specification for power production (8 kW @ 9 m/s-20 mph). Erratic cycling of the generator speed detector was the only operational problem encountered. Vibration tests indicated the first and second bending modes of the tower were excited during actual machine operation, but modifications were not required. Noise measurements revealed that~ouhd pressure levels of the UTRC a~e within an acceptable range and should pose no barriers to machine use.