Aerofoil profile wind-driven generator based on single pendulum
Technical field
The invention belongs to industrial technical fields, are related to a kind of wind power generation mode using aerofoil profile, in particular to
To the generation mode of the resonance principle using single pendulum.
Background technique
Currently, conventional wind power generator takes turns blades, cabin, transmission shaft, several pith groups such as tail vane by generator
At.This wind-driven generator is to the more demanding of wind speed, it is necessary to it could work higher than certain wind speed, the electricity of common generator output
Energy frequency is indefinite, is converted to the alternating current higher cost being able to use.Moreover, conventional wind power generator adjusting is more difficult, therefore
Wheel blade damage rate is high, causes maintenance cost high.
Summary of the invention
The technical problem to be solved by the present invention is overcome the problems, such as that conventional wind power generator cannot generate electricity at low wind speeds,
It solves the problems, such as that the frequency of conventional wind power generator output electric energy is unstable, and solves asking for common generator control control difficulty
Topic.The present invention provides a aerofoil profile wind-driven generator based on single pendulum, this kind of wind-driven generator is special using the energy storage of simple pendulum device
Property and resonance characteristic, continuous storage wind energy, achievees the purpose that generate electricity at low wind speeds, simultaneously as single at low wind speeds
The period of pendulum device is only related with pendulum length, so the frequency of the novel wind generator output electric energy is fixed, very good solution
Conventional wind power generator inoperable problem at low wind speeds, solves that conventional wind power generator generation frequency is unstable to ask
Topic.Moreover, because the lift coefficient of aerofoil profile can be changed by adjusting angle of attack size, therefore, the present invention can be very good to fit
Various wind speed are answered, blade is less likely to be damaged, and maintenance cost is low.
Technical solution of the present invention:
A kind of aerofoil profile wind-driven generator based on single pendulum, including aerofoil profile blade 1, aerofoil profile pitch control device 2, generator machine
Cabin 3, pedestal bar 4, even pedestal 5, single pendulum weight 6, single wobbling pole 7, generator drive shaft 8 and airfoil support axis 9;
The single wobbling pole 7 and airfoil support axis 9 is fixed together with generator drive shaft 8 respectively, and three is located at same
On straight line;Generator in generator drive shaft 8 and generator cabin 3 is fixed together, and generator cabin 3 is fixed on pedestal bar
On 4, in 4 company's of being fixed on pedestal 5 of pedestal bar, single pendulum weight 6 and single wobbling pole 7 are fixed together;Aerofoil profile blade 1 passes through Aerofoil impeller
Distance control apparatus 2 controls the rotation that certain angle is done around airfoil support axis 9, and aerofoil profile pitch control device 2 controls aerofoil profile blade 1 and revolves
Transfer the change angle of attack.
Usefulness of the present invention: aerofoil profile wind-driven generator of the invention can use single pendulum and store the wind energy of low wind speed
Get up, electrical power generators are driven by resonant interaction.The low wind speed energy successfully utilized, protects the frequency of wind-driven generator
It holds constant.And adaptation high wind speed ability is strong, and blade is less likely to be damaged in high wind speed situation.
Detailed description of the invention
Fig. 1 is the schematic diagram of the aerofoil profile wind-driven generator based on single pendulum.
In figure: 1 aerofoil profile blade;2 aerofoil profile pitch control devices;3 generator cabins;4 pedestal bars;5 connect pedestal;6 single pendulums
Weight;7 single wobbling poles;8 generator drive shafts;9 airfoil support axis.
Specific embodiment
Below in conjunction with attached drawing and technical solution, a specific embodiment of the invention is further illustrated.
In Fig. 1, a kind of aerofoil profile wind-driven generator based on single pendulum, including aerofoil profile blade 1, aerofoil profile pitch control device 2, hair
Motor cabin 3, pedestal bar 4, even pedestal 5, single pendulum weight 6, single wobbling pole 7, generator drive shaft 8 and airfoil support axis 9.
Aerofoil profile blade 1 can do the rotation of certain angle around airfoil support axis 9, and aerofoil profile pitch control device 2 is used to control
The wing and the rotation of cabin type blade 1 are to change the angle of attack.Single wobbling pole 7, airfoil support axis 9 are fixed in one with generator drive shaft 8 respectively
It rises.Generator in generator drive shaft 8 and generator cabin 3 is fixed together, and generator cabin 3 is fixed on pedestal bar 4,
In 4 company's of being fixed on pedestal 5 of pedestal bar, single pendulum weight 6 and single wobbling pole 7 are fixed together.
When the generator works, since the period of single pendulum is determined that we determine the period of this generator first by its pendulum length,
The time for setting the rotation of aerofoil profile pitch control device 2, make the angle of attack windward of aerofoil profile blade 1 before the deadline positive and negative
Between change, since the lift coefficient of aerofoil profile is very big, aerofoil profile blade 1 can produce very big active force, pass through 9 He of airfoil support axis
Single wobbling pole 7 constantly fills energy to single pendulum weight 6, and since the angle of attack variation period of aerofoil profile is consistent with period of single pendulum, makees in addition
It firmly resonating with single pendulum, keeps the amplitude of single pendulum increasing, the energy stored in single pendulum weight 6 is more and more, in this way,
In the case where wind-force very little, aerofoil profile wind-driven generator can also work power generation.Equally, when wind speed is very big, by adjusting the angle of attack, subtract
Small lift coefficient keeps the amplitude of single pendulum weight 6 excessively inviolent, makes aerofoil profile blade 1 be unlikely to destroy, ensure that structure in this way
Safety.