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이진학 ( Yi Jin-hak ),김원술 ( Kim Wonsul ),한택희 ( Han Taek Hee ),임승률 ( Yim Sungyul ) 한국구조물진단유지관리공학회 2017 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.21 No.1
In this study, dynamic characteristics were analyzed by field measurement and experiment mode analysis on a vertical axis wind turbine with resonance issue, and dynamic model modification was also carried out by concrete filling inside the steel tower. Finally, the overall power generation and economic efficiency due to the extension of the range of rotor rotational speed was also analyzed.
10 kW급 수직축 풍력터빈에 대한 구조물 동적응답 계측 및 분석
이진학(Jin-Hak Yi),김원술(Wonsul Kim),한택희(Taek Hee Han),임승률(Sungyul Yim) 한국소음진동공학회 2017 한국소음진동공학회 논문집 Vol.27 No.1
The dynamic characteristics including natural frequencies and excitation frequencies are evaluated for a small 10 kW vertical axis wind turbine. Acceleration responses were measured at 12 distributed locations for impact vibration tests, ambient vibration tests during non-operational and operational conditions, and braking tests during operational condition. The natural frequencies for the lowest 2 bending modes and the first torsional mode were estimated and also the excitation frequencies, i.e. 1P, 2P, 4P, were also estimated according to the rotational speed using the responses under operational conditions (i.e. power generation condition).