CN118128700B - Wind power generation device and energy storage system - Google Patents

Wind power generation device and energy storage system Download PDF

Info

Publication number
CN118128700B
CN118128700B CN202410541695.8A CN202410541695A CN118128700B CN 118128700 B CN118128700 B CN 118128700B CN 202410541695 A CN202410541695 A CN 202410541695A CN 118128700 B CN118128700 B CN 118128700B
Authority
CN
China
Prior art keywords
blade
shaft
wind power
power generation
blades
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202410541695.8A
Other languages
Chinese (zh)
Other versions
CN118128700A (en
Inventor
尹相柱
秦赓
李锦义
马辉
曾华全
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Delian Minghai New Energy Co ltd
Original Assignee
Shenzhen Delian Minghai New Energy Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Delian Minghai New Energy Co ltd filed Critical Shenzhen Delian Minghai New Energy Co ltd
Priority to CN202410541695.8A priority Critical patent/CN118128700B/en
Publication of CN118128700A publication Critical patent/CN118128700A/en
Application granted granted Critical
Publication of CN118128700B publication Critical patent/CN118128700B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • F03D15/00—Transmission of mechanical power
    • 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
    • F03D3/061—Rotors characterised by their aerodynamic shape, e.g. aerofoil profiles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
    • H02J7/1423—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle with multiple batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807—Rotary generators
    • H02K7/1823—Rotary generators structurally associated with turbines or similar engines
    • H02K7/183—Rotary generators structurally associated with turbines or similar engines wherein the turbine is a wind turbine

Landscapes

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

Abstract

The embodiment of the application relates to a wind power generation device and an energy storage system, wherein the wind power generation device comprises a first blade and a second blade; the first blade and the second blade are arranged at two ends of the first shaft, and the first blade and the second blade can rotate around the first shaft; the second shaft is arranged perpendicular to the first shaft; the input end of the generator is connected with the second shaft; one end of the power transmission mechanism is connected with the first shaft, and the other end of the power transmission mechanism is connected with the second shaft; increasing the width of the second blade relative to the width of the first blade along the direction X of the first axisOr the length of the second blade is increased relative to the length of the first blade along the direction Y of the second shaft. By widening or lengthening one side of the blades, an asymmetric blade structural design is formed, so that the inherent deflection torque of the first shaft and the second shaft during transmission can be effectively counteracted, and the stable operation of the wind power generation device is ensured.

Description

Wind power generation device and energy storage system
Technical Field
The embodiment of the application relates to the technical field of energy storage.
Background
A wind power generation device is a device that converts wind energy into electric energy. The wind power is utilized to push the blades to rotate, so that the generator is driven to rotate, and electric power is generated through an electromagnetic induction principle. Wind power plants can be classified into small wind power plants and large commercial wind power plants according to the scale and use, the latter being typically installed in a wind power plant. The small wind power generation device can be used for various scenes, individual users can purchase and install the small wind power generation device by themselves, the cost is low, and the small wind power generation device can be built into an off-grid energy system. The existing roller type wind power generation device is small in size and high in wind energy utilization efficiency at low wind speed.
In carrying out the application, the applicant of the present application found that: at present, the roller type wind power generation device has the advantages of small volume, high wind energy utilization efficiency at low wind speed and the like, however, the power of the roller type wind power generation device is transmitted to a generator from a transverse shaft to a vertical shaft, the integral deflection force exists during loading, the roller type wind power generation device can be in the middle of the oscillation of left and right deflection even if a yaw tail rudder exists, and the integral wind capturing performance and mechanical durability of the wind power generation device are reduced.
Disclosure of Invention
In view of the above problems, embodiments of the present application provide a wind power generation device and an energy storage system, which overcome the above problems or at least partially solve the problems of wind capturing performance and mechanical durability of the wind power generation device as a whole, in which the wind power generation device as a whole is in oscillation of yaw due to an inherent deflection force of the wind power generation device as a whole when the wind power generation device is loaded, in which power is transmitted to a generator from a horizontal shaft to a vertical shaft.
According to an aspect of an embodiment of the present application, there is provided a wind power generation apparatus including: a first blade and a second blade; the first blades and the second blades are arranged at two ends of the first shaft, the first blades can rotate around the first shaft, and the second blades can rotate around the first shaft; a second shaft disposed perpendicular to the first shaft; the input end of the generator is connected with the second shaft; the power transmission mechanism is used for transmitting wind energy captured by the first blade and/or the second blade from the first shaft to the second shaft so as to drive the generator to generate electricity; wherein the width of the second blade is increased relative to the width of the first blade along the direction X of the first axisThe length of the first blade is the same as the length of the second blade along the direction Y of the second shaft, or the length of the second blade is increased relative to the length of the first blade along the direction Y of the second shaftThe width of the first blade is the same as the width of the second blade along the direction X where the first axis is located.
In an alternative way, the first and second modules,
Wherein the saidA distance of the first blade from a center of the second shaft in the direction X; the saidHalf the width of the first blade in the direction X; the saidA moment arm of the wind force received by the first blade along the direction Y; the saidThe width of the first blade is along the direction X.
In an alternative way, the first and second modules,
The saidTake a positive value, wherein theA distance of the first blade from a center of the second shaft in the direction X; the saidA moment arm of the wind force received by the first blade along the direction Y; the saidThe length of the first blade is along the direction Y.
In an alternative mode, the wind power generation device further comprises a first spoke and a first hub, wherein the first hub is rotationally connected with the first shaft, one end of the first spoke is connected with the first hub, and the other end of the first spoke is connected with the first blade.
In an alternative manner, the number of the first blades is a plurality, the number of the first spokes is a plurality, and one of the first blades is connected to one of the first spokes.
In an alternative mode, the wind power generation device further comprises a second spoke and a second hub, wherein the second hub is rotationally connected with the first shaft, one end of the second spoke is connected with the second hub, and the other end of the second spoke is connected with the second blade.
In an alternative manner, the number of the second blades is a plurality, the number of the second spokes is a plurality, and one of the second blades is connected to one of the second spokes; the number of second blades is the same as the number of first blades.
In an alternative, the power transmission mechanism includes a first bevel gear and a second bevel gear, the first shaft is connected to the first bevel gear, the first bevel gear meshes with the second bevel gear, and the second bevel gear is connected to the second shaft.
In an optional mode, the wind power generation device further comprises a first frame body and a second frame body, wherein the first frame body is covered outside the first blade, and the second frame body is covered outside the second blade.
According to another aspect of the embodiment of the present application, there is provided an energy storage system, including the wind power generation device, an energy storage system controller motherboard, an ac-dc rectifier, a filter, a buck-boost device, a first relay, a battery pack, a second relay and an inverter; the wind power generation device is connected with the AC-DC rectifier, the filter is connected with the buck-boost converter, the buck-boost converter is connected with the energy storage system control main board, the buck-boost converter is connected with the first relay, the first relay is connected with the energy storage system controller main board, the first relay is connected with the battery pack, the battery pack is connected with the second relay, the second relay is connected with the energy storage system controller main board, the second relay is connected with the inverter, and the inverter is used for supplying power to AC load and DC load.
The beneficial effects of the embodiment of the application include: there is provided a wind power generation apparatus including a first blade and a second blade; the first blades and the second blades are arranged at two ends of the first shaft, the first blades can rotate around the first shaft, and the second blades can rotate around the first shaft; a second shaft disposed perpendicular to the first shaft; the input end of the generator is connected with the second shaft; the power transmission mechanism is used for transmitting wind energy captured by the first blade and/or the second blade from the first shaft to the second shaft so as to drive the generator to generate electricity; wherein the width of the second blade is increased relative to the width of the first blade along the direction X of the first axisThe length of the first blade is the same as the length of the second blade along the direction Y of the second shaft, or the length of the second blade is increased relative to the length of the first blade along the direction Y of the second shaftThe width of the first blade is the same as the width of the second blade along the direction X where the first axis is located. By widening or lengthening one side of the blades, an asymmetric blade structural design is formed, the internal deflection torque of the first shaft and the second shaft in transmission can be effectively counteracted, and the left-right deflection oscillation of the wind power generation device in operation is reduced or even eliminated under the condition that other original designs of the wind power generation device are not changed, so that the stable operation of the wind power generation device is ensured.
Drawings
One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to be taken in a limiting sense, unless otherwise indicated.
FIG. 1 is a schematic view of an implementation of a wind power plant provided by an embodiment of the application;
FIG. 2 is a schematic view of another implementation of a wind power plant provided by an embodiment of the application;
FIG. 3 is an exploded schematic view of a wind power plant according to an embodiment of the present application;
FIG. 4 is an enlarged schematic view of portion A of FIG. 3 according to an embodiment of the present application;
Fig. 5 is a schematic diagram of an energy storage system according to an embodiment of the present application.
The reference numerals are:
a wind power generation device 2;
The first blade 201, the second blade 202, the first shaft 203, the second shaft 204, the generator 205, the power transmission mechanism 206, the first spoke 207, the first hub 208, the second spoke 209, the second hub 210, the first frame 211, the second frame 212 and the base 213;
A first bevel gear 2061, a second bevel gear 2062, a gear box 2063;
Bearing 214, neck 215, bearing block 216, coupling 217, column base 218.
An energy storage system 100;
The energy storage system controller comprises an energy storage system controller main board 1, an alternating current-direct current rectifier 3, a filter 4, a step-up and step-down transformer 5, a first relay 6, a battery pack 7, a second relay 8, an inverter 9, an alternating current load 10, a direct current load 11 and a display panel 12.
Detailed Description
In order that the application may be readily understood, a more particular description thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings. It will be understood that when an element is referred to as being "fixed" to another element, it can be directly on the other element or one or more intervening elements may be present therebetween. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or one or more intervening elements may be present therebetween. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and the like are used in this specification for purposes of illustration only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used in this specification includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1,2 and 3, a wind power generation device 2 includes: the first blade 201, the second blade 202, the first shaft 203, the second shaft 204, the generator 205, the power transmission mechanism 206, the first spoke 207, the first hub 208, the second spoke 209, the second hub 210, the first frame 211, the second frame 212, and the base 213. Wherein the first blade 201 is connected to the first hub 208 by the first spoke 207, the first hub 208 being connected to the first shaft 203. The first blade 201 is rotatable about the first axis 203. Wherein the second blade 202 is connected to the second hub 210 by the second spoke 209, the second hub 210 being connected to the first shaft 203. The second blade 202 is rotatable about the first axis 203. The input of the generator 205 is connected to the second shaft 204. The second shaft 204 is perpendicular to the first shaft 203, and the second shaft 204 is connected to the first shaft 203 through the power transmission mechanism 206, so as to transmit wind energy captured by the first blade 201 and/or the second blade 202 from the first shaft 203 to the second shaft 204, and drive the generator 205 to generate electricity. With the wind power plant 2 described above, wind energy can be converted into electrical energy in order to supply an ac load or a dc load.
In the embodiment of the present application, the first blade 201 and the second blade 202 are asymmetrically arranged, wherein the width of the second blade 202 is increased relative to the width of the first blade 201 along the direction X in which the first axis 203 is locatedThe length of the first blade 201 is the same as the length of the second blade 202 along the direction Y of the second shaft 204, or the length of the second blade 202 is increased relative to the length of the first blade 201 along the direction Y of the second shaft 204The width of the first blade 201 is the same as the width of the second blade 202 along the direction X of the first axis 203. Through the arrangement, the blades on one side are widened or lengthened, an asymmetric blade structural design is formed, the inherent deflection torque of the first shaft 203 and the second shaft 204 in transmission can be effectively counteracted, and the left-right deflection oscillation of the wind power generation device 2 in operation is reduced or even eliminated under the condition that other original designs of the wind power generation device 2 are not changed, so that the stable operation of the wind power generation device 2 is ensured.
It should be noted that, in some embodiments, the first spoke 207, the first hub 208, the second spoke 209, the second hub 210, the first frame 211, the second frame 212, and the base 213 may not be provided, and the function of converting wind energy into electric energy and ensuring smooth operation of the wind power generation device 2 may also be implemented in the embodiments of the present application.
For the first blade 201, the first spoke 207, the first hub 208 and the first shaft 203, two ends of the first spoke 207 are respectively connected with the first blade 201 and the first hub 208, and the first hub 208 is rotationally connected with the first shaft 203, so that when the first blade 201 captures wind energy to rotate, the first hub 208 rotates and drives the first shaft 203 to rotate, and then power can be transmitted to the second shaft 204 to generate electricity by the generator 205.
It is worth noting that in some embodiments, the first spoke 207 and the first hub 208 are integrally formed in design.
In some embodiments, the number of the first blades 201 is a plurality, the number of the first spokes 207 is a plurality, and one of the first blades 201 is connected to one of the first spokes 207. By designing the plurality of first blades 201, the capturing capability of the first blades 201 to wind energy can be increased, and the efficiency of the wind power generation device 2 can be further improved.
For the second blade 202, the second spoke 209, the second hub 210 and the first shaft 203, two ends of the second spoke 209 are respectively connected with the second blade 202 and the second hub 210, and the second hub 210 is rotationally connected with the first shaft 203, so that when the second blade 202 captures wind energy to rotate, the second hub 210 rotates and drives the first shaft 203 to rotate, and then power can be transmitted to the second shaft 204 to generate electricity by the generator 205.
It is noted that in some embodiments, the second spoke 209 and the second hub 210 are integrally formed.
In some embodiments, the number of the second blades 202 is plural, the number of the second spokes 209 is plural, and one of the second blades 202 is connected to one of the second spokes 209. By designing the plurality of second blades 202, the capturing capability of the second blades 202 to wind energy can be increased, thereby improving the efficiency of the wind power generation device 2.
For the first and second blades 201, 202 described above, in some embodiments, the number of second blades 202 is the same as the number of first blades 201.
With respect to the first frame 211, the first frame 211 is covered outside the first blade 201, so that after the first blade 201 captures wind energy, the first frame 211 is covered outside the first blade 201, thereby reducing the escape of wind energy and maintaining the stress of the first blade 201.
In some embodiments, the first frame 211 is 3/4 circular when viewed along the direction X of the first axis 203, and leaves a 1/4 circular position as an air inlet for wind energy to act on the first blade 201.
For the second frame 212, the second frame 212 is covered outside the second blade 202, so that after the second blade 202 captures wind energy, the second frame 212 is covered outside the second blade 202, thereby reducing the escape of wind energy and maintaining the stress of the second blade 202.
In some embodiments, the second frame 212 is 3/4 circular when viewed along the direction X of the second axis 204, leaving a 1/4 circular position as the inlet for wind energy to act on the second blade 202.
For the first shaft 203 and the second shaft 204 described above, the first shaft 203 and the second shaft 204 are disposed vertically. The two ends of the first shaft 203 are respectively connected with the first blade 201 and the second blade 202, the first blade 201 can rotate around the first shaft 203, the second blade 202 can rotate around the first shaft 203, and when wind energy acts on the first blade 201 and the second blade 202, the first blade 201 and the second blade 202 can rotate around the first shaft 203.
For the generator 205, the input end of the generator 205 is connected to the second shaft 204, and when the second shaft 204 rotates, the generator 205 can generate electricity.
The specific principle of the generator 205 is that the rotating second shaft 204 drives the magnetic field to rotate, and current is generated in the stator through the electromagnetic induction principle. This current is regulated and transformed to ultimately be converted into usable electrical energy.
It should be noted that, in some embodiments, the wind power generation device 2 further includes a base 213, the generator 205 is disposed on the base 213, and the base 213 is configured to carry the generator 205, the second shaft 204, the power transmission mechanism 206, the first shaft 203, the first blade 201, the second blade 202, and the like. The base 213 may also be used for connecting the wind power plant 2 to external equipment.
It should be noted that, in some embodiments, a plurality of bearings 214, a neck shaft 215, a bearing seat 216, a coupling 217, a column base 218, etc. are further disposed between the generator 205 and the second shaft 204, so as to achieve better transmission between the second shaft 204 and the generator 205. The connection of the bearing 214, the neck shaft 215, the bearing seat 216, the coupling 217, the column base 218, etc. to the second shaft 204 may be of a conventional design in the mechanical field, and will not be described here.
For the above-mentioned power transmission mechanism 206, referring to fig. 3, one end of the power transmission mechanism 206 is connected to the first shaft 203, the other end of the power transmission mechanism 206 is connected to the second shaft 204, and the power transmission mechanism 206 is configured to transmit wind energy captured by the first blade 201 and/or the second blade 202 from the first shaft 203 to the second shaft 204, so as to drive the generator 205 to generate electricity.
In some embodiments, referring to fig. 3 and 4, the power transmission mechanism 206 includes a first bevel gear 2061 and a second bevel gear 2062, the first shaft 203 is connected to the first bevel gear 2061, the first bevel gear 2061 is meshed with the second bevel gear 2062, and the second bevel gear 2062 is connected to the second shaft 204. By the first and second bevel gears 2061 and 2062, the power of the first and second blades 201 and 202 acting on the first shaft 203 can be converted to the second shaft 204 and thus act on the generator 205.
It is noted that in some embodiments, the power transmission mechanism 206 further includes a gear box 2063, wherein the gear box 2063 is configured to receive the first and second bevel gears 2061 and 2062 to protect the first and second bevel gears 2061 and 2062.
It will be appreciated that the power transmission mechanism 206 is not limited to the above-mentioned structure, and may have other forms, for example, the power transmission mechanism 206 includes the second bevel gear 2062 and a third bevel gear (not shown), the third bevel gear is meshed with the second bevel gear 2062, the third bevel gear is disposed at a position opposite to the first bevel gear 2061, the third bevel gear is connected to the first shaft 203, and the third bevel gear is disposed near the second blade 202, so that when the first blade 201 and the second blade 202 rotate, the first shaft 203 rotates the third bevel gear, and thus rotates the second bevel gear 2062, and when the second bevel gear 2062 rotates, the second shaft 204 is connected to the second bevel gear 2062, and thus the power generator 205 may be acted on.
In other words, the first bevel gear 2061 may be engaged with the second bevel gear 2062, or the third bevel gear may be engaged with the second bevel gear 2062, so that the power transmission from the first shaft 203 to the second shaft 204 may be realized, and the first bevel gear 2061 and the third bevel gear may be designed in accordance with each other, either of which is an alternative.
Through the structural design of the embodiment of the application, wind energy can be converted into electric energy for external alternating current load or direct current load. The embodiment of the application also designs the first blade 201 and the second blade 202 into an asymmetric form, thereby effectively counteracting the inherent deflection torque of the first shaft 203 and the second shaft 204 during transmission and ensuring the stable operation of the wind power generation device 2.
Specifically, referring to fig. 1 and 2, the width of the second blade 202 is increased relative to the width of the first blade 201 along the direction X of the first axis 203The length of the first blade 201 is the same as the length of the second blade 202 along the direction Y of the second shaft 204, or the length of the second blade 202 is increased relative to the length of the first blade 201 along the direction Y of the second shaft 204The width of the first blade 201 is the same as the width of the second blade 202 along the direction X of the first axis 203.
Wherein,
The saidA distance from the first blade 201 to the center of the second shaft 204 along the direction X; the saidHalf the width of the first blade 201 along the direction X; the saidTo be in the direction Y, the arm of force of the wind force received by the first blade 201; the saidTo be in the direction X, the width of the first blade 201.
It will be appreciated that, due to the direction Y along the second axis 204, the length of the first blade 201 is the same as the length of the second blade 202, theAlso in the direction Y, the arm of the wind force received by the second blade 202.
Wherein,
The saidTake a positive value, wherein theA distance from the first blade 201 to the center of the second shaft 204 along the direction X; the saidTo be in the direction Y, the arm of force of the wind force received by the first blade 201; the saidTo be along the direction Y, the length of the first blade 201.
For the convenience of the reader to understand the inventive concepts of the present application, the above description will now be madeAndSpecific values of (2) are described.
< AboutThe value of ]
Referring to fig. 1, wind energy generates a driving torque when driving the first blade 201 and the second blade 202 to rotateThe first shaft 203 is used as a rotating shaft. Driving torqueThe values of (2) satisfy the following formula:
Wherein the said And said at least one ofEqual, saidThe force of wind on the first blade 201 is that) For the force of the wind on the second blade 202, theFor increased force due to increased width of the second blade 202, theTo be in the direction Y, the first blade 201 receives a moment arm of wind force.
The second shaft 204 forms a resistance force, which, as can be seen by the force and the reaction force, drives the torqueThe first blade 201 and the second blade 202 are deflected by the power transmission mechanism 206, and a counter-deflection torque is requiredCounteracting the counter-deflection torqueThe second shaft 204 is used as a rotating shaft, theThe values of (2) satisfy the following formula:
Wherein the said For increased force due to increased width of the second blade 202, theFor the distance from the first blade 201 to the center of the second shaft 204 along the direction X, theTo be in the direction X, half the width of the first blade 201, theThe second blade 202 has an increased width relative to the width of the first blade 201 in the direction X of the first axis 203.
In order to counteract the inherent yaw torque of the first shaft 203 and the second shaft 204 during transmission, the oscillations of the yaw during operation of the wind power plant 2 are reduced or even eliminated, and a smooth operation of the wind power plant 2 is ensured, in order toAnd due toThe following formula can be obtained:
Since the force is related to the area of the first blade 201 or the second blade 202, a geometrical relationship can be obtained:
Wherein the said The width of the first blade 201 is along the direction X in which the first axis 203 is located.
And then solving to obtain:
< about The value of ]
Referring to fig. 2, wind energy generates a driving torque when driving the first blade 201 and the second blade 202 to rotateThe first shaft 203 is used as a rotating shaft. Driving torqueThe values of (2) satisfy the following formula:
Wherein the said And said at least one ofEqual, saidThe force of wind on the first blade 201 is that) For the force of the wind on the second blade 202, theFor increased force due to the increased length of the second blade 202, theTo follow the direction Y, the arm of the wind force exerted on the first blade 201 is such thatTo be along the direction Y, the length of the first blade 201, theTo be along the direction Y, the length of the second blade 202 is as followsTo increase the length of the second blade 202 in the direction Y relative to the length of the first blade 201.
The second shaft 204 forms a resistance force, which, as can be seen by the force and the reaction force, drives the torqueThe first blade 201 and the second blade 202 are deflected by the power transmission mechanism 206, and a counter-deflection torque is requiredCounteracting the counter-deflection torqueThe second shaft 204 is used as a rotating shaft, theThe values of (2) satisfy the following formula:
Wherein the said For increased force due to the increased length of the second blade 202, theTo be in the direction X, the first blade 201 is spaced from the center of the second shaft 204.
In order to counteract the inherent yaw torque of the first shaft 203 and the second shaft 204 during transmission, the oscillations of the yaw during operation of the wind power plant 2 are reduced or even eliminated, and a smooth operation of the wind power plant 2 is ensured, in order toAnd due toThe following formula can be obtained:
Since the force is related to the area of the first blade 201 or the second blade 202, a geometrical relationship can be obtained:
And then solving to obtain:
Wherein the said Take a positive value.
In the embodiment of the present application, the wind power generation device 2 includes a first blade 201 and a second blade 202; a first shaft 203, the first blade 201 and the second blade 202 are disposed at two ends of the first shaft 203, the first blade 201 can rotate around the first shaft 203, and the second blade 202 can rotate around the first shaft 203; a second shaft 204 disposed perpendicular to the first shaft 203; a generator 205, an input end of the generator 205 is connected with the second shaft 204; and one end of the power transmission mechanism 206 is connected with the first shaft 203, the other end of the power transmission mechanism 206 is connected with the second shaft 204, the power transmission mechanism 206 is used for transmitting wind energy captured by the first blade 201 and/or the second blade 202 from the first shaft 203 to the second shaft 204 so as to drive the generator 205 to generate electricity, and through the arrangement, the wind energy can be converted into electric energy so as to be used by an external alternating current load or a direct current load. In addition, in the embodiment of the present application, the width of the second blade 202 is increased with respect to the width of the first blade 201 along the direction X in which the first axis 203 is locatedThe length of the first blade 201 is the same as the length of the second blade 202 along the direction Y of the second shaft 204, or the length of the second blade 202 is increased relative to the length of the first blade 201 along the direction Y of the second shaft 204The width of the first blade 201 is the same as the width of the second blade 202 along the direction X of the first axis 203. By widening or lengthening one of the blades to form an asymmetric blade structural design, the internal deflection torque of the first shaft 203 and the second shaft 204 during transmission can be effectively counteracted, and the left-right deflection oscillation of the wind power generation device 2 during operation can be reduced or even eliminated under the condition that other original designs of the wind power generation device 2 are not changed, so that the stable operation of the wind power generation device 2 is ensured.
The embodiment of the application also provides an embodiment of an energy storage system 100, as shown in fig. 5, the energy storage system comprises the wind power generation device 2, an energy storage system controller main board 1, an ac-dc rectifier 3, a filter 4, a step-up/step-down converter 5, a first relay 6, a battery pack 7, a second relay 8, an inverter 9 and a display panel 12. The wind power generation device is connected with the AC-DC rectifier 3, the filter 4 is connected with the buck-boost converter 5, the buck-boost converter 5 is connected with the energy storage system control main board 1, the buck-boost converter 5 is connected with the first relay 6, the first relay 6 is connected with the energy storage system controller main board 1, the first relay 6 is connected with the battery pack 7, the battery pack 7 is connected with the second relay 8, the second relay 8 is connected with the energy storage system controller main board 1, the second relay 8 is connected with the inverter 9, and the inverter 9 is used for supplying power to the AC load 10 and the DC load 11. The display panel 12 is connected to the energy storage system control motherboard 1, and can display the output state of the energy storage system 100. The specific structure and function of the wind power generation device may be referred to the above embodiments, and will not be described herein.
In the embodiment of the application, the wind power generation device 2 generates alternating current, the alternating current is sent into the buck-boost converter 5 through the alternating current-direct current rectifier 3 and the filter 4, the buck-boost converter 5 receives the control signal matching voltage of the energy storage system controller main board 1, the battery pack 7 is charged through the first relay 6, and the first relay 6 is disconnected when the battery pack is fully charged; the electric energy in the battery pack 7 is sent to the inverter 9 through one path of the second relay 8, so that the electric energy can be supplied to the alternating current load 10, the other path of the electric energy can be supplied to the direct current load 11, and the second relay 8 is disconnected when the battery pack 7 is under voltage; the energy storage system controller board 1 can control the display panel 12 to display the output state.
It should be noted that, in some embodiments, the display panel may not be provided, and the functions of the energy storage system 100 provided in the embodiments of the present application may be implemented.
It should be noted that while the present application has been illustrated in the drawings and described in connection with the preferred embodiments thereof, it is to be understood that the application may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but are to be construed as providing a full breadth of the disclosure. The above-described features are further combined with each other to form various embodiments not listed above, and are considered to be the scope of the present application described in the specification; further, modifications and variations of the present application may be apparent to those skilled in the art in light of the foregoing teachings, and all such modifications and variations are intended to be included within the scope of this application as defined in the appended claims.

Claims (8)

1. A wind power generation apparatus, comprising:
A first blade and a second blade;
The first blades and the second blades are arranged at two ends of the first shaft, the first blades can rotate around the first shaft, and the second blades can rotate around the first shaft;
a second shaft disposed perpendicular to the first shaft;
The input end of the generator is connected with the second shaft;
the power transmission mechanism is used for transmitting wind energy captured by the first blade and/or the second blade from the first shaft to the second shaft so as to drive the generator to generate electricity;
Wherein the width of the second blade is increased relative to the width of the first blade along the direction X of the first axis ; The length of the first blade is the same as the length of the second blade along the direction Y of the second shaft;
Or alternatively
Increasing the length of the second blade relative to the length of the first blade along the direction Y in which the second shaft is located; The width of the first blade is the same as the width of the second blade along the direction X where the first axis is;
Wherein,
The saidA distance of the first blade from a center of the second shaft in the direction X; the saidHalf the width of the first blade in the direction X; the saidA moment arm of the wind force received by the first blade along the direction Y; the saidA width of the first blade along the direction X;
Wherein,
The saidTake a positive value, wherein theA distance of the first blade from a center of the second shaft in the direction X; the saidA moment arm of the wind force received by the first blade along the direction Y; the saidThe length of the first blade is along the direction Y.
2. The wind power generation device of claim 1, further comprising a first spoke and a first hub, the first hub being rotatably connected to the first shaft, one end of the first spoke being connected to the first hub, the other end of the first spoke being connected to the first blade.
3. The wind power generation device of claim 2, wherein the number of first blades is a plurality, the number of first spokes is a plurality, and one of the first blades is connected to one of the first spokes.
4. A wind power plant according to claim 3, further comprising a second spoke and a second hub, the second hub being rotatably connected to the first shaft, one end of the second spoke being connected to the second hub, the other end of the second spoke being connected to the second blade.
5. The wind power generation set of claim 4, wherein the number of second blades is a plurality, the number of second spokes is a plurality, and a second blade is connected to a second spoke;
the number of second blades is the same as the number of first blades.
6. The wind power plant of claim 1, wherein the power transmission mechanism comprises a first bevel gear and a second bevel gear, the first shaft being coupled to the first bevel gear, the first bevel gear being meshed with the second bevel gear, the second bevel gear being coupled to the second shaft.
7. The wind power generation device of claim 1, further comprising a first frame and a second frame, wherein the first frame is disposed outside the first blade, and the second frame is disposed outside the second blade.
8. An energy storage system, comprising the wind power generation device of any one of claims 1-7, an energy storage system controller motherboard, an ac-dc rectifier, a filter, a buck-boost converter, a first relay, a battery pack, a second relay, and an inverter;
The wind power generation device is connected with the AC-DC rectifier, the filter is connected with the buck-boost converter, the buck-boost converter is connected with the energy storage system controller mainboard, the buck-boost converter is connected with the first relay, the first relay is connected with the energy storage system controller mainboard, the first relay is connected with the battery pack, the battery pack is connected with the second relay, the second relay is connected with the energy storage system controller mainboard, the second relay is connected with the inverter, and the inverter is used for supplying power to AC load and DC load.
CN202410541695.8A 2024-04-30 2024-04-30 Wind power generation device and energy storage system Active CN118128700B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202410541695.8A CN118128700B (en) 2024-04-30 2024-04-30 Wind power generation device and energy storage system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202410541695.8A CN118128700B (en) 2024-04-30 2024-04-30 Wind power generation device and energy storage system

Publications (2)

Publication Number Publication Date
CN118128700A CN118128700A (en) 2024-06-04
CN118128700B true CN118128700B (en) 2024-07-12

Family

ID=91236134

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202410541695.8A Active CN118128700B (en) 2024-04-30 2024-04-30 Wind power generation device and energy storage system

Country Status (1)

Country Link
CN (1) CN118128700B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201206533Y (en) * 2008-04-24 2009-03-11 新高能源科技股份有限公司 Recovery wind-driven generator
CN105114235A (en) * 2015-09-07 2015-12-02 三峡大学 Series-connecting impeller generation device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20070000560A (en) * 2005-06-28 2007-01-03 남태우 Rotor blade for a wind power generator
KR101791799B1 (en) * 2016-11-25 2017-11-20 신성우 A folding type wind power generator having a blade angle adjusting function

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201206533Y (en) * 2008-04-24 2009-03-11 新高能源科技股份有限公司 Recovery wind-driven generator
CN105114235A (en) * 2015-09-07 2015-12-02 三峡大学 Series-connecting impeller generation device

Also Published As

Publication number Publication date
CN118128700A (en) 2024-06-04

Similar Documents

Publication Publication Date Title
CH649817A5 (en) DEVICE FOR THE USE OF WIND ENERGY FOR THE PRODUCTION OF CONSTANT FREQUENCY ELECTRICITY.
US7615876B2 (en) Mobile power generation system and method
CN201786575U (en) Spring energy accumulation type wind generator
WO2010114771A1 (en) Continuously variable transmission ratio device with optimized primary path power flow
US8742641B2 (en) Concentric motor power generation and drive system
US8647224B2 (en) Generator arrangement for a wind power plant
US8410628B1 (en) Vehicle mounted energy airflow conversion apparatus
CN204349701U (en) Unmanned plane electricity generating and supplying system
CN118128700B (en) Wind power generation device and energy storage system
TW201249073A (en) Enclosed energy multi-circulation system and operating method thereof
CN100360798C (en) Bearing housing
CN102410142A (en) Wind power generator
CN106812664A (en) A kind of wind power direct-driven generator of the Windward angle that sail is strained according to wind direction
CN201003465Y (en) 1.5MW double-feedback type variable speed constant frequency wind-driven generator group
CN106195117A (en) Inertial flywheel transmission component and there is the system of inertial flywheel transmission component
US7931435B1 (en) Wind power megawatts producer
CN218816750U (en) Power generation device
CN205533017U (en) Substation equipment is failed to wind -powered electricity generation field
EP3555985B1 (en) Wind farm topology and method of operating the same
CN202718813U (en) Medium and high voltage wind turbine generating set
CN219257072U (en) Loading and unloading device, loading and unloading system and engineering vehicle
CN105972153A (en) Inertia flywheel transmission component and system with same
US11703030B2 (en) Yaw control device for a wind turbine
RU2468248C2 (en) Wind wheel and wind-driven power plant on its basis
US20240348136A1 (en) System and method for exploiting reaction force

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant