CN111794908B - High-efficiency hybrid wind driven generator - Google Patents

High-efficiency hybrid wind driven generator Download PDF

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Publication number
CN111794908B
CN111794908B CN202010794780.7A CN202010794780A CN111794908B CN 111794908 B CN111794908 B CN 111794908B CN 202010794780 A CN202010794780 A CN 202010794780A CN 111794908 B CN111794908 B CN 111794908B
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China
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cone
wind wheel
permanent magnet
shaped wind
energy
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CN111794908A (en
Inventor
谭剑锋
夏云松
蔡建纲
史瑞鹏
昂飞
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Nanjing Tech University
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Nanjing Tech University
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/005—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  the axis being vertical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/06—Rotors
    • F03D3/062—Rotors characterised by their construction elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/10—Combinations of wind motors with apparatus storing energy
    • F03D9/11—Combinations of wind motors with apparatus storing energy storing electrical energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • F03D9/255—Wind motors characterised by the driven apparatus the apparatus being an electrical generator connected to electrical distribution networks; Arrangements therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/96—Preventing, counteracting or reducing vibration or noise
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Wind Motors (AREA)

Abstract

The invention discloses a high-efficiency hybrid wind driven generator which comprises a cone, an H-shaped wind wheel, a connecting disc, a permanent magnet upper disc, a permanent magnet lower disc, a connecting support, an energy conversion device, a speed increaser, a generator set and a support; the cone is rotationally connected with the H-shaped wind wheel, one end of the cone is fixedly connected with the connecting disc, and the cone is connected with the permanent magnet upper disc on the connecting disc through the connecting disc to form a whole; the H-shaped wind wheel is connected with the generator set through a speed increaser, the generator set is arranged on the support, one end of the speed increaser is connected with the generator set, and the other end of the speed increaser is connected with the energy conversion device and the H-shaped wind wheel. The invention has simple structure, realizes the vibration power generation of the blades, can conveniently manufacture high-power and super-high-power wind driven generators, fully utilizes wind power resources in the height direction, and can solve the difficult problem of the self-starting difficulty of the vertical axis wind driven generator.

Description

High-efficiency hybrid wind driven generator
Technical Field
The invention belongs to the technical field of wind power generation, and particularly relates to a high-efficiency hybrid wind driven generator.
Background
With the increasing consumption of conventional energy and the increasing aggravation of the global ecological environment, wind energy has great development potential as a new energy source without pollution and renewable energy, and has great significance for coastal cities with abundant wind energy resources, original mountain areas, wide grasslands and the like, and remote rural areas with slow development of power grids due to inconvenient transportation. The device required by wind power generation is called a wind generating set, and mainly comprises a wind wheel, a generator, an iron tower, a tail rudder and the like, and can be divided into a horizontal-axis wind power generator and a vertical-axis wind power generator according to the installation mode of a wind wheel rotating shaft, wherein the blades of the horizontal-axis wind power generator are generally 2-4, and the size of the blades can be correspondingly increased along with the increase of the output power of the wind power generator, for example, the length of the blades of the 1.5MW wind power generator is about 35-40 m, the diameter of the wind wheel reaches 80-100 m, and the height of the iron tower also reaches about 80-100 m, so that the land occupation rate of the horizontal-axis wind power generator is high.
In order to capture larger wind energy, the blade size of the wind driven generator needs to be increased, and the increase of the blade size can bring more difficulty to transportation and installation of the wind driven generator, the cost of the wind driven generator blade is about 25-30% of the total cost of the wind driven generator at present, for example, the cost of the 2MW wind driven generator blade is about 1100 ten thousand yuan.
The bladeless wind driven generator occupies a small area on the horizontal plane, but occupies a large amount of space on the vertical space, so that the waste of materials and space in the vertical direction is caused.
The wind wheel of the vertical axis wind driven generator rotates around a vertical axis, and as the blades of the vertical axis wind driven generator are objectively limited by materials and structures, the self-starting performance is poor under the condition of low wind speed, so that the low-speed starting performance of the generator is not ideal, and the power generation efficiency is low under the condition of low wind speed.
Disclosure of Invention
The invention aims to solve the problems of low power generation efficiency and difficult self-starting of a wind driven generator, and provides a high-efficiency hybrid wind driven generator which is simple in structure and fully utilizes vibration energy in the height direction.
The invention adopts the technical scheme that: a high-efficiency hybrid wind driven generator comprises a cone, an H-shaped wind wheel, a connecting disc, a permanent magnet upper disc, a permanent magnet lower disc, a connecting support, an energy conversion device, a speed increaser, a generator set and a support;
the cone is rotationally connected with the H-shaped wind wheel, one end of the cone is fixedly connected with the connecting disc, and the cone is connected with the permanent magnet upper disc on the connecting disc through the connecting disc to form a whole;
The H-shaped wind wheel is connected with the generator set through a speed increaser, the generator set is arranged on the support, one end of the speed increaser is connected with the generator set, and the other end of the speed increaser is connected with the energy conversion device and the H-shaped wind wheel;
The energy conversion device is provided with a permanent magnet lower disc, the permanent magnet upper disc is connected with the permanent magnet lower disc through a connecting support, the permanent magnet upper disc is fixed on the connecting disc, the planes of the permanent magnet upper disc and the permanent magnet lower disc, which are opposite, are kept parallel, and the magnetic poles of the permanent magnet upper disc and the magnetic poles of the permanent magnet lower disc, which are opposite, are repelled.
The cone, the H-shaped wind wheel, the connecting support and the energy conversion device are connected together to form a whole;
When wind acts on the cone, a periodic alternating transverse force is generated on the cone due to the Karman vortex street principle, so that the cone is caused to generate periodic vibration, and the vibration frequency and the vibration amplitude obtained by the cone are transmitted to the energy conversion device through the connecting support, so that the transmission and conversion of wind energy obtained by the cone are realized;
When wind acts on the H-shaped wind wheel, because the cone serving as the vertical axis of the wind wheel is non-fixed, a non-periodic alternating force is generated on the wind wheel, so that the cone generates non-periodic vibration, and the vibration frequency and the vibration amplitude obtained by the cone are transmitted to the energy conversion device through the connecting support, so that the transmission and conversion of wind energy obtained by the H-shaped wind wheel are realized;
one end of the speed increaser is connected with the energy conversion device and the H-shaped wind wheel, and the other end of the speed increaser is connected with the generator set; after the energy conversion device converts wind energy obtained by vibration of the cone and the H-shaped wind wheel into kinetic energy, the speed increaser accelerates the rotation speed output by the energy conversion device and transmits the rotation speed to the generator set for power generation.
The H-shaped wind wheel, the speed increaser and the generator set are connected together to form a module; when wind acts on the H-shaped wind wheel, the H-shaped wind wheel is driven to rotate, wind energy is converted into mechanical energy, the H-shaped wind wheel is connected with a generator set through a speed increaser, and the mechanical energy is converted into electric energy after being amplified, so that the conversion of wind energy acquired by the H-shaped wind wheel is realized;
One end of the speed increaser is connected with the H-shaped wind wheel, and the other end of the speed increaser is connected with the generator set; the speed increaser accelerates the rotation speed output by the H-shaped wind wheel and transmits the rotation speed to the generator set for power generation.
The permanent magnet upper disc is fixed on the connecting disc, the permanent magnet lower disc is fixed at the outer end of the energy conversion device, the planes of the permanent magnet upper disc and the permanent magnet lower disc opposite to each other are kept parallel, and the magnetic poles of the planes of the permanent magnet upper disc and the permanent magnet lower disc opposite to each other repel each other. When the cone deflects under the combined action of the wind wheel and wind, the upper permanent magnet disc deflects correspondingly, and the lower permanent magnet disc keeps motionless, so that the planes of the upper permanent magnet disc and the lower permanent magnet disc, which are opposite, are not kept parallel any more, the repulsive force generated by the side with the short distance is larger than that of the side with the large distance, and the upper permanent magnet disc is forced to recover to be parallel to the lower permanent magnet disc, so that the cone is driven to swing in the opposite direction, and vibration is generated by the cone under the action of wind; meanwhile, the existence of repulsive force between the two can ensure that the amplitude of the cone cannot be infinitely overlapped and increased when the cone resonates.
Preferably, the cone is a cone hollow structure, the natural frequency of the cone changes along with the frequency change of the alternating transverse acting force generated by the wind speed, and the fixed frequency of the cone is close to the frequency of the alternating acting force, so that the cone can acquire larger mechanical energy.
Preferably, one end of the energy conversion device is connected with the connecting support, the other end of the energy conversion device is connected with the speed increaser, and the energy conversion device is a hydraulic mechanical energy conversion device; the energy conversion device is used for transmitting mechanical energy acquired by the cone and the wind wheel to the energy conversion device through the connecting support, converting the acquired mechanical energy into kinetic energy and transmitting the kinetic energy to the speed increaser.
Preferably, the upper end of the generator set is connected with a speed increaser, the lower end of the generator set is connected with a support and is fixed on the ground through the support, and the generator set outputs the electric energy obtained by vibration of the cone and the wind wheel to the H-shaped wind wheel through the speed increaser and transmits the electric energy to the H-shaped wind wheel to enable the H-shaped wind wheel to rotate, so that the self-starting function of the H-shaped wind wheel is realized.
The beneficial effects of the invention are as follows: the vibration frequency of the cone and the H-shaped wind wheel is in direct proportion to the wind speed, and the amplitude of the cone and the H-shaped wind wheel is increased along with the increase of the wind speed, so that the operating wind speed range of the wind driven generator is widened to a great extent, and the utilization efficiency and the generated energy of wind energy are improved.
The efficient hybrid wind driven generator is simple in structure, and has the power generation capacity of both the bladeless wind driven generator and the vertical axis wind driven generator, so that the requirement of capturing larger wind energy is met, the power generation efficiency is improved, meanwhile, the difficulty in transportation and installation caused by increasing the size of the motor blades is avoided, the cost is greatly saved, and the cost performance is improved.
Finally, the high-efficiency hybrid wind driven generator adopts the cone to acquire wind energy, and the cone belongs to the slender rod structure, so that the original fixed vertical shaft of the wind driven generator has the capability of acquiring wind energy, and the land occupancy rate is greatly reduced to a certain extent. And the electric energy provided by the device also solves the problem of difficult self-starting of the vertical axis wind turbine.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic diagram of the working principle of the bladeless wind power generator part of the invention.
FIG. 3 is a schematic diagram of the working principle of the H-type vertical axis wind turbine section of the present invention.
Fig. 4 is a schematic diagram of the overall working principle of the invention.
In the figure 1, the wind wheel comprises a 1-cone, a 2-connecting disc, a 3-permanent magnet upper disc, a 4-permanent magnet lower disc, a 5-speed increaser, a 6-generator set, a 7-support, an 8-energy conversion device, a 9-connecting support and a 10-H-shaped wind wheel.
Detailed Description
The invention is further described below with reference to the drawings and the detailed description.
As shown in fig. 1 to 4, the invention comprises a cone 1, an H-shaped wind wheel 10, a connecting disc 2, a permanent magnet upper disc 3, a permanent magnet lower disc 4, a connecting support 9, an energy conversion device 8, a speed increaser 5, a generator set 6 and a support 7; the cone 1 is rotationally connected with an H-shaped wind wheel 10, one end of the cone is fixedly connected with a connecting disc 2, the H-shaped wind wheel 10 is connected with a permanent magnet upper disc 3 on the connecting disc 2 through the connecting disc 2 to form a whole, the H-shaped wind wheel 10 is connected with a generator set 6 through a speed increaser 5, the generator set 6 is arranged on a support 7, one end of the speed increaser 5 is connected with the generator set 6, the other end of the speed increaser is connected with an energy conversion device 8 and the H-shaped wind wheel 10, a permanent magnet lower disc 4 is arranged on the energy conversion device 8, the permanent magnet upper disc 3 is connected with the permanent magnet lower disc 4 through a connecting support 9, and magnetic poles on opposite sides of the permanent magnet upper disc 3 and the permanent magnet lower disc 4 repel each other.
The cone 1, the H-shaped wind wheel 10, the connecting support 9 and the energy conversion device 8 are connected together to form a whole; when wind acts on the cone 1, a periodic alternating transverse force is generated on the cone 1 due to the karman vortex street principle, so that the cone 1 is caused to generate periodic vibration, and the vibration frequency and the vibration amplitude obtained by the cone 1 are transmitted to the energy conversion device 8 through the connecting support 9, so that the transmission and conversion of wind energy obtained by the cone 1 are realized.
The cone 1, the H-shaped wind wheel 10, the connecting support 9 and the energy conversion device 8 are connected together to form a whole; when wind acts on the H-shaped wind wheel 10, because the cone 1 serving as the vertical shaft of the wind wheel 10 is non-fixed, a non-periodic alternating force is generated on the wind wheel 10, so that the cone 1 is caused to generate non-periodic vibration, and the vibration frequency and the vibration amplitude obtained by the cone 1 are transmitted to the energy conversion device 8 through the connecting support 9, so that the transmission and conversion of wind energy obtained by the H-shaped wind wheel 10 are realized.
The H-shaped wind wheel 10, the speed increaser 5 and the generator set group 6 are connected together to form a module; when wind acts on the H-shaped wind wheel 10, the H-shaped wind wheel 10 is driven to rotate, wind energy is converted into mechanical energy, the H-shaped wind wheel 10 is connected with the generator set 6 through the speed increaser 5, and the mechanical energy is converted into electric energy after being amplified, so that the conversion of wind energy acquired by the H-shaped wind wheel 10 is realized.
The permanent magnet upper plate 3 is fixed on the connecting plate 2, the permanent magnet lower plate 4 is fixed at the outer end of the energy conversion device 8, the plane where the permanent magnet upper plate 3 and the permanent magnet lower plate 4 are opposite is kept parallel, and the magnetic poles of the plane where the permanent magnet upper plate 3 and the permanent magnet lower plate 4 are opposite are repelled. When the cone 1 deflects under the combined action of the wind wheel 10 and wind, the permanent magnet upper disc 3 correspondingly deflects, and the permanent magnet lower disc 4 is kept motionless, so that the planes of the permanent magnet upper disc 3 and the permanent magnet lower disc 4 which are opposite are not kept in parallel any more, the repulsive force generated by the side with the short distance is larger than that of the side with the large distance, the permanent magnet upper disc 3 is forced to restore the parallel state with the permanent magnet lower disc 4, and the cone 1 is driven to swing in the opposite direction, so that the cone 1 generates vibration under the action of wind; at the same time, the existence of repulsive force between the two can ensure that the amplitude of the cone 1 cannot be infinitely overlapped and increased when the cone is resonated.
The cone 1 is of a conical hollow structure, the natural frequency of the cone 1 can change along with the frequency change of alternating transverse acting force generated by wind speed, and the fixed frequency of the cone 1 is close to the frequency of the alternating acting force, so that the cone 1 can acquire larger mechanical energy.
One end of an energy conversion device 8 is connected with a connecting support 9, the other end of the energy conversion device is connected with a speed increaser 5, and the energy conversion device 8 is a hydraulic mechanical energy conversion device; the energy conversion device 8 is used for transmitting mechanical energy acquired by the cone 1 and the wind wheel 10 to the energy conversion device 8 through the connecting support 9, converting the acquired mechanical energy into kinetic energy and transmitting the kinetic energy to the speed increaser 5.
One end of a speed increaser 5 of the invention is connected with an energy conversion device 8 and an H-shaped wind wheel 10, and the other end is connected with a generator set 6; after the energy conversion device 8 converts wind energy obtained by vibration of the cone 1 and the H-shaped wind wheel 10 into kinetic energy, the speed increaser 5 accelerates the rotation speed output by the energy conversion device 8 and transmits the rotation speed to the generator set 6 for generating electricity.
One end of a speed increaser 5 of the invention is connected with an H-shaped wind wheel 10, and the other end is connected with a generator set 6; the speed increaser 5 accelerates the rotation speed output by the H-shaped wind wheel 10 and transmits the rotation speed to the generator set 6 for generating electricity.
The upper end of the generator set 6 is connected with the speed increaser 5, the lower end of the generator set 6 is connected with the support 7 and is fixed on the ground through the support 7, and the generator set 6 receives the rotation speed output by the speed increaser 5 to realize the function of generating electricity.
The upper end of the generator set 6 is connected with the speed increaser 5, the lower end of the generator set 6 is connected with the support 7 and is fixed on the ground through the support 7, and the generator set 6 outputs the electric energy obtained by vibration of the cone 1 and the wind wheel 10 through the speed increaser 5, transmits the electric energy to the H-shaped wind wheel 10, and enables the electric energy to rotate, so that the self-starting function of the H-shaped wind wheel 10 is realized.
The working process of the high-efficiency hybrid wind driven generator is as follows: when wind meeting certain conditions bypasses the cone 1, a karman vortex street phenomenon is generated, after the vortex street appears, the wind can generate a periodic alternating transverse acting force on the cone 1, and when the frequency of the acting force is close to the natural frequency of the cone 1, the cone 1 is caused to generate resonance, so that the cone 1 generates maximum amplitude, namely the cone 1 obtains maximum mechanical energy; when wind acts on the H-shaped wind wheel 10, since the cone 1 as the vertical axis of the wind wheel 10 is not fixed, an aperiodic alternating force is generated on the wind wheel 10, thereby causing the cone 1 to vibrate aperiodically; when the mechanical energy acquired by the cone 1 and the wind wheel 10 is transmitted to the energy conversion device 8 through the connecting disc 2 and the connecting support 9, the hydraulic mechanical energy converter in the energy conversion device 8 converts the mechanical energy into kinetic energy and then transmits the kinetic energy to the speed increaser 5; meanwhile, when wind acts on the H-shaped wind wheel 10, the H-shaped wind wheel 10 is driven to rotate, wind energy is converted into mechanical energy, and then the mechanical energy is transmitted to the speed increaser 5; when the obtained rotation speed is increased by the speed increaser 5, the rotation speed is transmitted to the generator set 6, and the power is generated by the generator set 6 and is output to a power grid or an energy storage device. The natural frequency of the cone 1 has an automatic adjusting characteristic, so that the cone 1 can acquire the maximum mechanical energy to the maximum extent when the wind speed changes, and the generated energy is improved. The magnetic poles of the opposite planes between the upper permanent magnet disc 3 and the lower permanent magnet disc 4 are arranged in a repulsive mode, so that deflection angles generated when wind acts on the cone can be overcome, the vibration center is ensured to be always positioned on the axis of the whole wind driven generator, and damage caused by infinite superposition of vibration amplitude during resonance is avoided.
The self-starting working process of the high-efficiency hybrid wind driven generator is as follows: when the wind which does not meet the requirement of the self-starting of the H-shaped wind wheel 10 acts on the H-shaped wind wheel 10 and the cone 1, the H-shaped wind wheel 10 cannot normally start to generate electricity, and the vibration of the cone 1 and the wind wheel 10 is converted into electricity through a series of conversion to generate electricity normally by the generator set 6. The electric energy of the generator set 6 outputs the rotation speed through the speed increaser 5 and is transmitted to the H-shaped wind wheel 10 to drive the H-shaped wind wheel 10 to rotate, so that the self-starting of the H-shaped wind wheel 10 is realized. After the power generation unit 6 is started, the power supply to the H-shaped wind wheel is not needed, and the H-shaped wind wheel and the cone generate power through the power generation unit 6 and output the power to a power grid or an energy storage device.
The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the spirit and scope of the invention.

Claims (2)

1. The utility model provides a high-efficient mixed type aerogenerator which characterized in that: the wind turbine comprises a cone, an H-shaped wind wheel, a connecting disc, a permanent magnet upper disc, a permanent magnet lower disc, a connecting support, an energy conversion device, a speed increaser, a generator set and a support;
the cone is rotationally connected with the H-shaped wind wheel, one end of the cone is fixedly connected with the connecting disc, and the cone is connected with the permanent magnet upper disc on the connecting disc through the connecting disc to form a whole;
The H-shaped wind wheel is connected with the generator set through a speed increaser, the generator set is arranged on the support, one end of the speed increaser is connected with the generator set, and the other end of the speed increaser is connected with the energy conversion device and the H-shaped wind wheel;
The energy conversion device is provided with a permanent magnet lower disc, the permanent magnet upper disc is connected with the permanent magnet lower disc through a connecting support, the permanent magnet upper disc is fixed on the connecting disc, the planes of the permanent magnet upper disc and the permanent magnet lower disc opposite to each other are kept parallel, and the magnetic poles of the permanent magnet upper disc and the magnetic poles of the permanent magnet lower disc opposite to each other repel each other;
The cone, the H-shaped wind wheel, the connecting support and the energy conversion device are connected together to form a whole;
When wind acts on the cone, a periodic alternating transverse force is generated on the cone, so that the cone is caused to generate periodic vibration, and the vibration frequency and the vibration amplitude obtained by the cone are transmitted to the energy conversion device through the connecting support, so that the transmission and conversion of wind energy obtained by the cone are realized;
When wind acts on the H-shaped wind wheel, because the cone serving as the vertical axis of the H-shaped wind wheel is non-fixed, an aperiodic alternating force is generated on the H-shaped wind wheel, so that the cone is caused to vibrate in an aperiodic mode, and the vibration frequency and the vibration amplitude obtained by the cone are transmitted to the energy conversion device through the connecting support, so that the transmission and conversion of wind energy obtained by the H-shaped wind wheel are realized;
One end of the speed increaser is connected with the energy conversion device and the H-shaped wind wheel, and the other end of the speed increaser is connected with the generator set; after the energy conversion device converts wind energy obtained by vibration of the cone and the H-shaped wind wheel into kinetic energy, the speed increaser accelerates the rotation speed output by the energy conversion device and transmits the rotation speed to the generator set for power generation;
The H-shaped wind wheel, the speed increaser and the generator set are connected together to form a module; when wind acts on the H-shaped wind wheel, the H-shaped wind wheel is driven to rotate, wind energy is converted into mechanical energy, the H-shaped wind wheel is connected with a generator set through a speed increaser, and the mechanical energy is converted into electric energy after being amplified, so that the conversion of wind energy acquired by the H-shaped wind wheel is realized;
the cone is of a cone hollow structure;
the energy conversion device is a hydraulic mechanical energy conversion device.
2. The efficient hybrid wind power generator as claimed in claim 1, wherein: the generator set outputs the electric energy obtained by vibration of the cone and the H-shaped wind wheel to the H-shaped wind wheel through the speed increaser, and transmits the electric energy to the H-shaped wind wheel to enable the H-shaped wind wheel to rotate, so that the self-starting function of the H-shaped wind wheel is realized.
CN202010794780.7A 2020-08-10 2020-08-10 High-efficiency hybrid wind driven generator Active CN111794908B (en)

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CN111794908B true CN111794908B (en) 2024-06-25

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN212296707U (en) * 2020-08-10 2021-01-05 南京工业大学 Efficient hybrid wind driven generator

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