TY - GEN
T1 - A passive control method of HAWT blade cyclical aerodynamic load induced by wind shear
AU - Chen, Hong Sheng
AU - Jen, Tien Chien
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/5/2
Y1 - 2017/5/2
N2 - Modern wind turbines are mainly horizontal axis and operate in bottom atmospheric boundary layer driven by wind shear flow, therefore as the blades rotating the aerodynamic load vary cyclically, with horizontal axis wind turbine (HAWT) large-scaling the cyclical characteristic becomes more obvious, shortening blade life and increasing cost of wind turbine. As the development of wind turbine large-scaling is the essential trend, load fluctuation control is more and more critical in HAWT design and manufacture. In common, individual pitch control is introduced to solve the problem, but cost much energy from electric net. In this paper, a concept of telescopic blade root is introduced to reduce fluctuate load induced by wind shear passively, and considering the blades as rigid assessment is operated, meanwhile aerodynamic model based on blade element method in order to analysis the aerodynamic load on NREL Phase VI reference based blade. The result shows that after introducing the equipment the blade fatigue load can be released, lengthening blade life.
AB - Modern wind turbines are mainly horizontal axis and operate in bottom atmospheric boundary layer driven by wind shear flow, therefore as the blades rotating the aerodynamic load vary cyclically, with horizontal axis wind turbine (HAWT) large-scaling the cyclical characteristic becomes more obvious, shortening blade life and increasing cost of wind turbine. As the development of wind turbine large-scaling is the essential trend, load fluctuation control is more and more critical in HAWT design and manufacture. In common, individual pitch control is introduced to solve the problem, but cost much energy from electric net. In this paper, a concept of telescopic blade root is introduced to reduce fluctuate load induced by wind shear passively, and considering the blades as rigid assessment is operated, meanwhile aerodynamic model based on blade element method in order to analysis the aerodynamic load on NREL Phase VI reference based blade. The result shows that after introducing the equipment the blade fatigue load can be released, lengthening blade life.
KW - cyclical aerodynamic load
KW - passive control
KW - wind energy
KW - wind shear
UR - http://www.scopus.com/inward/record.url?scp=85019980582&partnerID=8YFLogxK
U2 - 10.1109/ICMIMT.2017.7917445
DO - 10.1109/ICMIMT.2017.7917445
M3 - Conference contribution
AN - SCOPUS:85019980582
T3 - Proceedings of 2017 8th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2017
SP - 106
EP - 109
BT - Proceedings of 2017 8th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 8th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2017
Y2 - 3 February 2017 through 6 February 2017
ER -
