Wind power generation fan blade damping device and damping method thereof
A wind turbine blade and vibration damping device technology is applied to wind turbines, wind turbine control, wind power generation, etc., and can solve the problems of increasing the vibration frequency range of wind turbines, reducing the service life of wind turbines, and controlling distortion of output parameters. Achieve the effect of improving dynamic response characteristics, achieving stable operation, and reducing multi-order frequency amplitude
Inactive Publication Date: 2018-11-23
HANGZHOU QICHENG TECH CO LTD
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Problems solved by technology
[0004] The vibration sources of existing wind power generation devices mainly include the axial vibration in the blade plane and the vibration of the nacelle caused by the rotation of the generator. The two complement each other and promote each other, greatly increasing the vibration frequency range of the wind power generation device, making it easier to generate resonance phenomenon, which greatly reduces the service life of the wind power generation device, and also causes distortion of the control output parameters, and ultimately affects the utilization rate of wind energy
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[0029] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0030] A vibration damping device for wind turbine blades, including a vibration wave collection device 1, an analysis and calculation module 2, and a vibration reduction execution device 3; the vibration wave collection device 1 includes a first vibration sensing module 4 and a second vibration sensing module 5 , a third vibration sensing module 6, a signal converter 7, a programmable logic control module 8, a transmission module 9 and a signal processing module 10; wherein, the first vibration sensing module 4 is installed on the blade tip of each blade of the wind power generation device The second vibration induction module 5 is installed at the root of each blade of the wind power generation device, the third vibration induction module 6 is installed at the position of the generator in the nacelle of the wind power generation device, and the above-m...
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The invention relates to a wind power generation fan blade damping device and a damping method thereof, and solves the technical problem of the way to reduce the blade and cabin vibration of a wind power generation device; the controllability of a wind power generator unit is guaranteed; and the service life of the wind power generation device is prolonged. In the wind power generation fan blade damping device and the damping method thereof, the damping device comprises a vibration wave collecting device, an analytical calculating module and a damping execution device; the remote wireless acquisition of vibration waveforms can be realized; and meanwhile, through calculation of the vector sum of first and second control parameters of a generator electromagnetic torque, a hydraulic damper isstructurally mounted at a blade root between every two blades, so that the in-surface multi-order frequency vibration amplitude of the fan blades is reduced, the dynamic response characteristics in the unit operation are improved, and the service life of the wind power generation device is prolonged.
Description
technical field [0001] The invention relates to a vibration damping device and a vibration damping method thereof, in particular to a vibration damping device and a vibration damping method for wind turbine blades. Background technique [0002] Wind power generation is a green, clean and environmentally friendly energy utilization method. By installing wind power generation devices in areas with strong natural winds on the sea and on land, the natural energy in the area can be fully utilized and converted into electrical energy, thereby creating huge economic benefit. [0003] However, during the operation of the wind power generation device, due to the existence of many factors such as the rotation of the blades and the generator rotor, and the vibration of the ground surface, there will be vibrations in various parts of the wind power generation device, which will lead to wind power generation on the one hand. The distortion of the control output parameters, on the other ...
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Login to View More IPC IPC(8): F03D80/00F03D7/00
CPCF03D7/00F03D80/00F05B2260/96F05B2270/602F05B2270/706Y02E10/72
Inventor 李保平
Owner HANGZHOU QICHENG TECH CO LTD