Wind-driven generator actively folds tail vane and its hydraulic control system
Technical field
The invention belongs to wind power equipment technical fields, and in particular to a kind of wind-driven generator actively folds tail vane and its hydraulic
Control system.
Background technique
Wind-driven generator is to convert wind energy into mechanical work, and mechanical work drives rotor rotation, the electricity of final output alternating current
Power equipment.In a broad sense, wind energy is also solar energy, so alternatively wind-driven generator, is one kind using the sun as heat source, with big
Gas is the heat energy utilization generator of working media.
A kind of for another example wind driven generator braking system of publication No. CN201020253355.9, including one be connected to a wind-force
The judgment module of the brake module of generator and a real time monitoring wind-power electricity generation electro-mechanical force output parameter, the judgment module
The brake module is triggered to wind-driven generator execution brake according to the size of the electric power output parameter and is released
Put brake.The utility model also provides a kind of wind-driven generator brake method and applies the wind driven generator braking system
Wind powered generator system, the wind driven generator braking system and wind powered generator system can avoid damaging because wind speed is excessively high
Bad wind-driven generator.
Extensive concern of the wind-power electricity generation due to having caused people the advantages of its own, makes wind generating technology in energy shortage
Today have great researching value.But the wind of nature is all changing all the time, this randomness of wind and unstable
Property just to wind energy utilization bring many problems.If wind-driven generator is without active protective device, when more than wind-driven generator
System can occur that high wind wipes out blade, generator speed is too fast and burns, the tail vane that fractures, freely folds tail after tolerance range
It is unable to complete protection act, small-sized wind power generator in rudder actual motion, it is not high to be folded mechanically tail vane installation space deficiency intensity
Etc. a series of failure problems.
Summary of the invention
The present invention is easy to burn, fracture tail vane for the problem that disadvantage mentioned above based on existing wind-power electricity generation is solved.It proposes
A kind of wind-driven generator actively folds tail vane and its hydraulic control system, and wind-driven generator is in extreme environment operating voltage or electricity
It is more than specified online for flowing, and brake actuating mechanism just will start, and control system detects energy storage battery condition such as after the completion of brake
Electricity not enough will releasing of brake after 30 minutes, continuously brake repeatedly for three times, system, which will will start, folds the wind sheltering of tail vane mechanism
Protect wind-driven generator.
The specific technical solution of the present invention is as follows:
Wind-driven generator actively folds tail vane, including pedestal, and revolving body is mounted on the base, and pacifies on the revolving body
Equipped with chassis, which is characterized in that be equipped with generator on the chassis, the rear on chassis is equipped with steering tail vane, the power generation
Machine rear is equipped with the brake of control generator itself and control turns to the hydraulic control system that tail vane turns to protection;
The hydraulic control system includes hydraulic pump, reversal valve, overflow valve, turns to protection executing agency and brake execution machine
Structure;Overflow valve formation level pressure overflow oil circuit in parallel with hydraulic pump and fuel tank;The corresponding oil of steering protection executing agency
Road is sequentially connected bidirectional throttling valve, reversal valve, and the pressure oil circuit and oil return opening of the reversal valve are connect with hydraulic pump respectively, described
Hydraulic pump connects fuel tank and hydraulic pump motor;
The corresponding oil circuit of the brake actuating mechanism is sequentially connected two-way valve, check valve, hydraulic pump and fuel tank and forms oil inlet
Oil circuit;The corresponding oil circuit of the brake actuating mechanism is sequentially connected two-way valve, type pilot check valve and fuel tank and forms oil return circuit.
Beneficial effects of the present invention: wind-driven generator is more than specified online, brake in extreme environment operating voltage or electric current
Executing agency just will start, and control system detection energy storage battery condition such as electricity not enough will be at 30 minutes after the completion of brake
Releasing of brake afterwards continuously brakes repeatedly for three times, and system, which will will start, folds tail vane mechanism wind sheltering protection wind-driven generator.A whole set of machine
Structure is at low cost, operational safety, reliable performance, has a very important significance to the service life for extending wind-driven generator, and be
Middle-size and small-size wind-driven generator actively protects release mechanism to provide Research foundation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that wind-driven generator of the present invention actively folds tail vane;
Fig. 2 is present hydraulic system control figure.
Specific embodiment
Embodiment 1
As described in Figure, wind-driven generator actively folds tail vane, including pedestal 30, and revolving body 29 is mounted on the pedestal 30
On, chassis 26 is installed on the revolving body 29, generator 21 is installed on the chassis 26, the rear on chassis 26, which is equipped with, to be turned
To tail vane 28,21 rear of generator is equipped with the brake of control generator 21 itself and control turns to the liquid that tail vane 28 turns to protection
Pressure control system 22.
Hydraulic control system 22 includes hydraulic pump 2, reversal valve 4, overflow valve 10, turns to and executing agency 6 and brake is protected to hold
Row mechanism 7;The overflow valve 10 formation level pressure overflow oil circuit in parallel with hydraulic pump 2 and fuel tank 1;Executing agency is protected in the steering
6 corresponding oil circuits are sequentially connected bidirectional throttling valve 5, reversal valve 4, the pressure oil circuit and oil return opening of the reversal valve 4 respectively with liquid
Press pump 2 connects, and the hydraulic pump 2 connects fuel tank 1 and hydraulic pump motor 11.
The corresponding oil circuit of brake actuating mechanism 7 is sequentially connected two-way valve 8, check valve 3, hydraulic pump 2 and fuel tank 1 and forms oil inlet
Oil circuit;The corresponding oil circuit of the brake actuating mechanism 7 is sequentially connected two-way valve 8, type pilot check valve 9 and fuel tank 1 and forms oil return
Oil circuit.The working principle of the invention be it is such, usually wind-driven generator carry out normal power generation, in wind-driven generator extreme
When environmental work voltage or electric current are more than specified online, the hydraulic oil in fuel tank 1 is delivered up by hydraulic pump motor 11 passes through list
Brake actuating mechanism 7 is set to execute brake operation to valve 3 and two-way valve 8.
Control system detection energy storage battery condition such as electricity will not enough unclamp brake after 30 minutes after the completion of brake
Vehicle, the specific movement of releasing of brake are that type pilot check valve 9 is opened, and hydraulic oil is flowed out out of brake actuating mechanism 7 by first
9 oil circuit of conductivity type check valve is returning to fuel tank 1.If continuously braked repeatedly for three times, system, which will will start, folds the wind sheltering of tail vane mechanism
Wind-driven generator is protected, detailed process is as follows, and the hydraulic oil in fuel tank 1 is delivered up through reversal valve 4 by hydraulic pump motor 11
Make to turn to bidirectional throttling valve 5 and the movement of executing agency 6 is protected to drive the steering movement progress wind sheltering protection of tail vane 28.