CN111550364B - Three-dimensional wind field power generation system based on wind power monitoring - Google Patents
Three-dimensional wind field power generation system based on wind power monitoring Download PDFInfo
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- CN111550364B CN111550364B CN202010538704.XA CN202010538704A CN111550364B CN 111550364 B CN111550364 B CN 111550364B CN 202010538704 A CN202010538704 A CN 202010538704A CN 111550364 B CN111550364 B CN 111550364B
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- 238000010248 power generation Methods 0.000 title claims abstract description 28
- 238000012544 monitoring process Methods 0.000 title claims abstract description 23
- 238000004891 communication Methods 0.000 claims abstract description 7
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- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 239000011888 foil Substances 0.000 claims description 4
- 239000006247 magnetic powder Substances 0.000 claims description 4
- 230000008901 benefit Effects 0.000 description 6
- 230000005611 electricity Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 150000002910 rare earth metals Chemical class 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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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
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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
- F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
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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
- F03D3/06—Rotors
- F03D3/062—Rotors characterised by their construction elements
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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
- F03D7/00—Controlling wind motors
- F03D7/06—Controlling wind motors the wind motors having rotation axis substantially perpendicular to the air flow entering the rotor
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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
- 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
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- 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
- F05B2270/00—Control
- F05B2270/30—Control parameters, e.g. input parameters
- F05B2270/32—Wind speeds
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- 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
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a three-dimensional wind field power generation system based on wind power monitoring, which comprises: the vertical axis wind turbine electric energy converter I is arranged on the support column I; the wind wheel comprises a first wind power capturing component and a second wind power capturing component which are sequentially connected in series from bottom to top, and the first wind power capturing component or the second wind power capturing component respectively comprises a sleeve, three supporting legs, three main blades, three arc-shaped cracks and three arc-shaped slide rails; three rotating legs; driving a slide block; three folding blades; a plurality of fan ribs; an anemometer; a local monitor; the controller is in communication connection with the sliding block drive, the local monitor and the meteorological satellite; the controller is used for comparing the wind speed value I acquired in real time with the average wind speed value II acquired in advance so as to adjust the positions of the three rotating supporting legs. The three-dimensional wind field power generation system based on wind power monitoring can adjust the wind power capture area according to the wind power, and further effectively improves the self-starting capability of the system at low wind speed.
Description
Technical Field
The invention relates to the technical field of wind power generation, in particular to a three-dimensional wind field power generation system based on wind power monitoring.
Background
A wind power plant drives a wind turbine by wind energy to drive a generator to produce electric energy. With the development of global economy, the wind energy market has also rapidly developed. The installed capacity of the global wind power in 2007 is 9 gigawatts, the installed capacity of the global wind power in 2008 is increased by 28.8%, the installed capacity of the global wind power at the end of 2008 is more than 12.08 gigawatts, and the emission reduction is equivalent to 1.58 million tons of carbon dioxide. With the development of technical progress and environmental protection, wind power generation will be completely competitive with coal-fired power generation in commerce. The wind energy belongs to renewable energy, has the advantages of no pollution, cleanness, good environmental benefit, renewability, inexhaustibility, short capital construction period, less investment, flexible installation scale, relatively mature technology and the like, and has wide application prospect. Two main types of wind turbines are: horizontal Axis Wind Turbines (HAWT) and Vertical Axis Wind Turbines (VAWT). At present, a horizontal axis wind turbine occupies a dominant position in the market, but the vertical axis wind turbine has remarkable advantages and is more and more emphasized by researchers.
However, the existing vertical axis wind turbine has poor self-starting capability at low wind speed, so that the utilization rate of wind energy is not high.
Disclosure of Invention
An object of the present invention is to solve the above-described problems and provide advantages which will be described later.
The invention also aims to provide a three-dimensional wind field power generation system based on wind power monitoring, which can adjust the wind power capture area of a wind power capture component according to the wind power, thereby effectively improving the self-starting capability at low wind speed and effectively utilizing wind energy.
To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a stereoscopic wind farm power generation system based on wind power monitoring, including:
the vertical axis wind driven generator electric energy converter I is of a cylindrical structure and is coaxially and rotatably arranged on the support column I;
a wind capture assembly, comprising: the sleeve is rigidly sleeved on the electric energy converter I of the vertical axis wind driven generator and comprises an inner cylinder and an outer cylinder which are sleeved with each other, and an annular accommodating cavity is formed between the inner cylinder and the outer cylinder; the outer cylinder body is arranged in a divergent extending mode with the center of a circle, the three support legs are positioned on the same horizontal plane, and the bottom surface of any support leg is sunken into the support leg to form a rectangular accommodating groove; the three main blades are arc-shaped sheet bodies and are respectively arranged at the tail ends of the three supporting legs; the three arc-shaped cracks are respectively arranged on the side wall of the outer barrel body from the lower parts of the fixing points of the two supporting legs fixed to the outer barrel body as starting points, and are obliquely downwards and penetratingly arranged, the inclination directions of the three arc-shaped cracks are opposite, and the lengths of the three arc-shaped cracks are consistent with the radian; the three arc-shaped sliding rails are respectively and correspondingly arranged on the outer side wall of the inner barrel and are arranged at the vertical projection positions of the three arc-shaped cracks on the outer side wall of the inner barrel, and the radians and the extension directions of the three arc-shaped sliding rails are consistent with those of the three arc-shaped cracks; the three rotating support legs are respectively and correspondingly arranged right below the three support legs, the front ends of the three support legs are not mutually contacted with the three main blades, and the tail ends of the three rotating support legs respectively extend into the three arc-shaped cracks and are connected to the three arc-shaped slide rails through slide blocks; a slider drive that drives the slider; the three folding blades are respectively arranged between the three rotating supporting legs and the three supporting legs, the first edge of any folding blade is fixed in the accommodating groove below one supporting leg, the second edge of any folding blade is fixed on the upper end surface of the corresponding rotating supporting leg, and any folding blade can move downwards along with the rotation of the rotating supporting leg and is unfolded into a sector; the fan ribs are dispersedly inserted into the three folding blades, and the tail ends of the fan ribs are arranged on the three arc-shaped sliding rails in a sliding manner;
the anemoscope is arranged on the support column II, and the support column II and the bottom of the support column I are fixed at the same altitude; the distance between the support column II and the support column I is less than 30 m;
the local monitor is in communication connection with the anemometer and is used for acquiring and storing an average wind speed value I detected by the anemometer within a time period t1 in real time;
the controller is in communication connection with the sliding block drive, the local monitor and the meteorological satellite, the controller is used for inquiring the position of the sliding block drive in real time, and if the driving sliding block is positioned at the uppermost end of the three arc-shaped sliding rails, the inquiry result is marked as '1'; if the driving slide block is positioned at the lowest end of the three arc-shaped slide rails, the query result is marked as '0';
the controller is also used for acquiring the wind speed value I stored in the local monitor in real time within the time period t1, pre-acquiring the average wind speed value II predicted by the meteorological satellite within the time period t1, and comparing the average wind speed value I detected by the anemometer within the time period t1 with the average wind speed value II to obtain a comparison result:
if the average wind speed value I is less than or equal to the average wind speed value II is less than or equal to 9.5 m/s; or when the average wind speed value I is less than or equal to 9.5m/s and the average wind speed value II is more than or equal to 9.6 m/s; the controller inquires the position of the driving slide block, if the inquiry result is '1', the slide block is started to drive the three rotating support legs to slide along the three arc-shaped slide rails in the direction of oblique lower direction, and meanwhile, the three folding blades are driven to be unfolded to be in a fan shape; the controller inquires the position of the driving slide block, and if the inquiry result is '0', the slide block driving is not started;
if the average wind speed value I is larger than or equal to the average wind speed value II and is larger than or equal to 9.6 m/s; or when the average wind speed value I is more than or equal to 9.5m/s and the average wind speed value II is less than or equal to 9.6m/s, the controller inquires the position of the driving slide block, and if the inquiry result is '1', the slide block driving is not started; the controller inquires the position of the driving slide block, if the inquiry result is '0', the slide block is started to drive the three rotating support legs to slide obliquely upwards along the three arc-shaped slide rails, and meanwhile, the three folding blades are driven to fold and pack up.
Preferably, the unfolding area of any main blade is larger than the unfolding area of any folding blade.
Preferably, any one of the three arcuate slits is angled less than 30 degrees from the axial direction of the sleeve.
Preferably, the plurality of fan ribs are sprayed with magnetic powder, and two adjacent folding surfaces are mutually adsorbed when the fan is folded.
Preferably, any one of the three folding blades further comprises:
the oxford fabric jacket layer is of a fan-shaped structure and is a main body of any one of the folding blades;
and any one of the metal sheets is of a trapezoidal structure, and the metal sheets are sequentially embedded into the Oxford fabric jacket layer along the extending direction of the fan ribs to form a folding surface.
Preferably, the thickness of any foil does not exceed 5 mm.
Preferably, the 40min < time period t1 < 60 min.
Preferably, the method further comprises the following steps:
if the average wind speed value I is less than or equal to 9.5m/s, the average wind speed value II is more than or equal to 9.6m/s, and the average wind speed value II-the average wind speed value I is less than or equal to 1.0 m/s; the controller inquires the position of the driving slide block, if the inquiry result is '1', the slide block is started to drive the three rotating support legs to slide along the three arc-shaped slide rails in the direction of oblique lower direction, and meanwhile, the three folding blades are driven to be unfolded to be in a fan shape; the controller inquires the position of the driving slide block, and if the inquiry result is '0', the slide block driving is not started;
if the average wind speed value I is less than or equal to 9.5m/s, the average wind speed value II is more than or equal to 9.6m/s, and the average wind speed value II-the average wind speed value I is more than 1.0 m/s; the controller inquires the position of the driving slide block, and if the inquiry result is '1', the slide block driving is not started; the controller inquires the position of the driving slide block, if the inquiry result is '0', the slide block is started to drive the three rotating support legs to slide obliquely upwards along the three arc-shaped slide rails, and meanwhile, the three folding blades are driven to fold and pack up.
Preferably, the method further comprises the following steps: a vertical axis wind turbine electric energy converter II; and
umbrella-type wind wheel, it includes the stalk portion and uses the stalk portion to send out a plurality of arc fan blades that set up as central arc, and the lower extreme of stalk portion passes through the coaxial rotatable cover of cylindrical bearing and establishes telescopic top, and umbrella-type wind wheel's fan blade and the three main blade of second wind-force capture component are not contacted each other, and set up in the stalk portion and hold the cavity, vertical axis aerogenerator electric energy converter II sets up in the cavity that holds of stalk portion.
The invention has the following beneficial effects:
the first wind power capturing component and the second wind power capturing component form a wind wheel integrally, and the wind wheel drives an electric energy converter I (such as a rare earth permanent magnet generator) of the vertical axis wind driven generator to generate electricity and send the electricity to a controller for control, and the electricity is used by a load; the first wind power capturing component and the second wind power capturing component are integrated, three main blades are supported by three supporting legs to form a basic wind power capturing structure of the first wind power capturing component and the second wind power capturing component, and when wind power is large, the self-starting requirement can be completely met; however, the wind power is small, even in breeze, the self-starting requirement is difficult to achieve only by three main blades, and the rotating speed is low; therefore, the controller controls the three rotating support legs to slide and unfold the three folding blades, so that the wind power capture area is effectively increased, the wind energy utilization rate is effectively improved, the self-starting requirement of the wind power capture assembly is effectively met, and the rotating speed of the wind power capture assembly is improved; the three folding blades are evenly distributed around the sleeve in an unfolded mode, the distance between the first wind power capturing component and the sleeve and the distance between the second wind power capturing component and the sleeve are shortened, the overall stability of the wind wheel can be further improved, and the service life of the wind wheel is prolonged;
in conclusion, the three-dimensional wind field power generation system based on wind power monitoring can reasonably adjust the wind power capture area according to the wind power, so that the wind energy utilization rate is effectively improved, and more clean electric energy is obtained.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic structural diagram of a three-dimensional wind farm power generation system based on wind power monitoring according to the present invention;
FIG. 2 is a schematic top view of the wind capture assembly according to one embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of a leg and a swivel leg in accordance with an embodiment of the present invention, wherein a folding blade is inserted into a receiving groove of a leg;
FIG. 4 is a schematic view of the wind capture assembly and support column I according to one embodiment of the present invention;
FIG. 5 is a schematic cross-sectional structural view of a wind capture assembly according to one embodiment of the present invention, wherein three swivel leg connections are provided on a slider;
FIG. 6 is a schematic illustration of an expanded configuration of a folding blade according to an embodiment of the present invention;
figure 7 shows a schematic view of the wind capture assembly, the rotor and the support post i according to a further embodiment of the invention.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1 to 5, a stereoscopic wind farm power generation system based on wind power monitoring includes:
the vertical axis wind driven generator electric energy converter I10 is of a cylindrical structure, and is coaxially and rotatably arranged on the support column I20; according to setting up needs, adjust the height of support column I, for example: the support column I is arranged in a region close to a city, and the height of the support column I can be even 8m, 12m, 15m, 18m or 20 m; the vertical axis wind driven generator electric energy converter I is rotatably arranged on the support column I through a bearing and is driven by the wind power capturing component to rotate so as to obtain kinetic energy;
a wind capture assembly 30, comprising: the sleeve 301 is rigidly sleeved on the electric energy converter I of the vertical axis wind driven generator and comprises an inner cylinder 3011 and an outer cylinder 3012 which are sleeved with each other, and an annular accommodating cavity is formed between the inner cylinder and the outer cylinder; the three supporting legs 302 extend in a manner of taking the outer cylinder body as a circle center in a divergent manner, are positioned on the same horizontal plane, and the bottom surface of any supporting leg is sunken into the supporting leg to form a rectangular accommodating groove 3021; the three main blades 303 are arc-shaped sheet bodies, and are respectively vertically arranged at the tail ends of the three supporting legs; the three arc-shaped cracks 304 are respectively arranged on the side wall of the outer cylinder body in a downward inclined and penetrating way from the lower parts of the fixing points of the two supporting legs fixed to the outer cylinder body as starting points, the inclination directions of the three arc-shaped cracks are opposite, and the lengths of the three arc-shaped cracks are consistent with the radian; the three arc-shaped sliding rails 305 are respectively and correspondingly arranged on the outer side wall of the inner cylinder body and are arranged at the vertical projection positions of the three arc-shaped cracks on the outer side wall of the inner cylinder body, and the radians and the extending directions of the three arc-shaped sliding rails are consistent with those of the three arc-shaped cracks; the three rotating support legs 306 are respectively and correspondingly arranged right below the three support legs, the front ends of the three support legs are not mutually contacted with the three main blades, and the tail ends of the three rotating support legs respectively extend into the three arc-shaped cracks and are connected to the three arc-shaped slide rails through slide blocks; a slider drive that drives the slider; three folding blades 307 which are respectively arranged among the three rotating legs and the three legs, wherein a first edge of any folding blade is fixed in the accommodating groove below one leg, a second edge of any folding blade is fixed on the upper end surface of the corresponding rotating leg, and any folding blade can move downwards along with the rotation of the rotating leg and is unfolded into a sector; the fan ribs 3071 are dispersedly inserted in the three folding blades, and the tail ends of the fan ribs are arranged on the three arc-shaped slide rails in a sliding manner; 3/4, the length of any rotating leg is less than that of any leg, and the length of any rotating leg is greater than that of any leg, so as to utilize the internal space of any leg to the maximum extent and accommodate any larger folding blade;
the anemoscope 40 is arranged on the support column II 50, and the bottoms of the support column II and the support column I are fixed at the same altitude; the distance between the support column II and the support column I is less than 30 m; the error of the anemometer for detecting the wind speed near the wind motor is reduced, and the wind energy utilization rate is improved;
the local monitor is in communication connection with the anemometer and is used for acquiring and storing an average wind speed value I detected by the anemometer within a time period t1 in real time;
the controller is in communication connection with the sliding block drive, the local monitor and the meteorological satellite, the controller is used for inquiring the position of the sliding block drive in real time, and if the driving sliding block is positioned at the uppermost end of the three arc-shaped sliding rails, the inquiry result is marked as '1'; if the driving slide block is positioned at the lowest end of the three arc-shaped slide rails, the query result is marked as '0';
the controller is also used for acquiring the wind speed value I stored in the local monitor in real time within the time period t1, pre-acquiring the average wind speed value II predicted by the meteorological satellite within the time period t1, and comparing the average wind speed value I detected by the anemometer within the time period t1 with the average wind speed value II to obtain a comparison result:
if the average wind speed value I is less than or equal to the average wind speed value II is less than or equal to 9.5 m/s; or when the average wind speed value I is less than or equal to 9.5m/s and the average wind speed value II is more than or equal to 9.6 m/s; the controller inquires the position of the driving slide block, if the inquiry result is '1', the slide block is started to drive the three rotating support legs to slide along the three arc-shaped slide rails in the direction of oblique lower direction, and meanwhile, the three folding blades are driven to be unfolded to be in a fan shape; the controller inquires the position of the driving slide block, and if the inquiry result is '0', the slide block driving is not started;
if the average wind speed value I is larger than or equal to the average wind speed value II and is larger than or equal to 9.6 m/s; or when the average wind speed value I is more than or equal to 9.5m/s and the average wind speed value II is less than or equal to 9.6m/s, the controller inquires the position of the driving slide block, and if the inquiry result is '1', the slide block driving is not started; the controller inquires the position of the driving slide block, if the inquiry result is '0', the slide block is started to drive the three rotating support legs to slide obliquely upwards along the three arc-shaped slide rails, and meanwhile, the three folding blades are driven to fold and pack up.
In the scheme, the first wind power capturing component and the second wind power capturing component form a wind wheel integrally, and the wind wheel drives the vertical axis wind driven generator electric energy converter I (such as a rare earth permanent magnet generator) to generate electricity and send the electricity to the controller for control so as to transmit and distribute the electric energy used by a load; the first wind power capturing component and the second wind power capturing component are integrated, three main blades are supported by three supporting legs to form a basic wind power capturing structure of the first wind power capturing component and the second wind power capturing component, and when wind power is large, the self-starting requirement can be completely met; however, the wind power is small, even in breeze, the self-starting requirement is difficult to achieve only by three main blades, and the rotating speed is low; therefore, the controller controls the three rotating support legs to slide and unfold the three folding blades, so that the wind power capture area is effectively increased, the wind energy utilization rate is effectively improved, the self-starting requirement of the wind power capture assembly is effectively met, and the rotating speed of the wind power capture assembly is improved; the three folding blades are evenly distributed around the sleeve in an unfolded mode, the distance between the first wind power capturing component and the sleeve and the distance between the second wind power capturing component and the sleeve are shortened, the overall stability of the wind wheel can be further improved, and the service life of the wind wheel is prolonged; in conclusion, the three-dimensional wind field power generation system based on wind power monitoring can reasonably adjust the wind power capture area according to the wind power, so that the wind energy utilization rate is effectively improved, and more clean electric energy is obtained.
In addition, the wind power generation system provided by the invention is also provided with the anemoscope and the local monitor, so that the local wind speed can be monitored in real time, the monitored wind speed is compared with the predicted wind speed of the meteorological satellite, more accurate real-time wind speed is obtained, and whether the three folding blades are unfolded or not can be adjusted more accurately according to the wind speed.
In a preferred scheme, the unfolding area of any main blade is larger than the unfolding area of any folding blade. In the scheme, the area of the main blade is smaller than the area of the sector, and when the three folding blades are unfolded, the wind capturing area can be doubled or more, so that the wind energy utilization rate is effectively improved.
In a preferred embodiment, as shown in fig. 4, any one of the three arcuate slits is angled less than 30 degrees from the axial direction of the sleeve. In the scheme, the included angle between any one of the arc-shaped cracks and the axial direction of the sleeve can be 10 degrees, 15 degrees, 20 degrees, 25 degrees or even 30 degrees. So as to avoid the crossing between two adjacent arc-shaped cracks.
In a preferred scheme, magnetic powder is sprayed on a plurality of fan ribs, and two adjacent folding surfaces are mutually adsorbed when the fan ribs are folded. Spraying magnetic powder on a plurality of fan bones to the structure is compacter when conveniently packing up three folding blade, changes in its orderly embedding holding tank.
As shown in fig. 6, in a preferred embodiment, any one of the three folding blades further comprises:
the oxford fabric outer sleeve layer 3072 is of a fan-shaped structure, and is a main body of any folding blade;
the metal sheets 3073 are of a trapezoid structure, and are sequentially embedded into the Oxford fabric jacket layer along the extending direction of the fan ribs to form a folding surface.
In the scheme, the oxford fabric jacket layer is a main body of any folding blade, so that the oxford fabric jacket layer is convenient to fold and retract, is wind-resistant and corrosion-resistant, can be used for a long time and is low in application cost; the plurality of metal sheets are used for supporting the folding surface and providing hard support for the fan surface main body, and meanwhile, the plurality of metal sheets have certain elasticity, can bear deformation to a certain degree and have strong wind resistance; in practical application, the thick longitude and latitude that sets up of moving about freely and quickly on the oxford overcoat layer is used for fixing a plurality of foil, when improving structural stability for oxford overcoat layer thickness itself is thinner, changes in accomodating.
In a preferred embodiment, the thickness of any foil does not exceed 5 mm. For example, the metal sheet may be made of an alloy material or a stainless steel material and have a thickness of 2mm, 3mm, 4mm or 5 mm.
In a preferred embodiment, the time period t1 < 60min < 40 min. And calculating an average wind speed value I once every certain time interval, and comparing the average wind speed value I with an average wind speed value II to more accurately adjust the states of the three folding blades so as to better utilize wind energy. Such as: 35min for time period t1, 40min for time period t1, 50min for time period t1, 60min for time period t1, 70min for time period t1, 80min for time period t1, or 90min for time period t 1. The interval time is not short enough, so that the three folding blades are prevented from being frequently replaced in the folding and unfolding states, and the service life is shortened.
In a preferred embodiment, the method further comprises: if the average wind speed value I is less than or equal to 9.5m/s, the average wind speed value II is more than or equal to 9.6m/s, and the average wind speed value II-the average wind speed value I is less than or equal to 1.0 m/s; the controller inquires the position of the driving slide block, if the inquiry result is '1', the slide block is started to drive the three rotating support legs to slide along the three arc-shaped slide rails in the direction of oblique lower direction, and meanwhile, the three folding blades are driven to be unfolded to be in a fan shape; the controller inquires the position of the driving slide block, and if the inquiry result is '0', the slide block driving is not started;
if the average wind speed value I is less than or equal to 9.5m/s, the average wind speed value II is more than or equal to 9.6m/s, and the average wind speed value II-the average wind speed value I is more than 1.0 m/s; the controller inquires the position of the driving slide block, and if the inquiry result is '1', the slide block driving is not started; the controller inquires the position of the driving slide block, if the inquiry result is '0', the slide block is started to drive the three rotating support legs to slide obliquely upwards along the three arc-shaped slide rails, and meanwhile, the three folding blades are driven to fold and pack up.
In practical application, a certain error can be generated by local monitoring, so that whether the three folding blades are unfolded or not is controlled by integrating three factor values of the average wind speed value I, the average wind speed value II and the average wind speed value II-average wind speed value I, and wind power can be more favorably and accurately evaluated, so that wind power can be better utilized, and the wind power utilization rate can be improved.
As shown in fig. 7, in a preferred embodiment, the method further includes: a vertical axis wind turbine electric energy converter II; and
umbrella-type wind wheel 60, it includes stalk portion 601 and uses the stalk portion to send out a plurality of arc fan blades 602 that set up as the central arc, and the lower extreme of stalk portion passes through the coaxial rotatable cover of cylindrical bearing and establishes telescopic top, and umbrella-type wind wheel's fan blade and the three main blade of second wind-force capture component are not contacted each other, and set up in the stalk portion and hold the cavity, vertical axis aerogenerator electric energy converter II sets up in the holding cavity of stalk portion.
In the above scheme, the wind wheel and the umbrella-shaped wind wheel are coaxially and rotatably arranged through the cylindrical bearing, that is, the wind wheel and the Samsung wind wheel are not restricted with each other and can rotate independently, after the wind wheel with a large bearing wind power area starts to rotate, the umbrella-shaped wind wheel above the wind direction capable of generating a certain lift force blows, and then the umbrella-shaped wind wheel can not only utilize wind in the nature to generate electricity, but also can utilize wind from the wind wheel to self-start and rotate, so that more electric energy can be generated by utilizing wind energy, and the wind energy utilization rate is improved.
In the same time period, in the same region:
the wind driven generator without three folding blades is set as a comparison group;
the three-dimensional wind field power generation system based on wind power monitoring and provided with three folding blades and related matching devices is set as an experimental group 1;
the three-dimensional wind field power generation system which is provided with three folding blades and related matching devices and is also provided with an umbrella-shaped wind wheel and based on wind power monitoring is set as an experimental group 2 to carry out a contrast test;
the test result of the test platform of the vertical axis wind power generation system shows that compared with a control group, the generated energy of the experimental group 1 is improved by 62%;
compared with the control group, the power generation amount of the experimental group 1 is improved by 102%.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (9)
1. A three-dimensional wind field power generation system based on wind power monitoring is characterized by comprising:
the vertical axis wind driven generator electric energy converter I is of a cylindrical structure and is coaxially and rotatably arranged on the support column I;
the wind wheel comprises a first wind power capturing component and a second wind power capturing component which are sequentially connected in series from bottom to top, wherein the first wind power capturing component or the second wind power capturing component comprises: the sleeve is rigidly sleeved on the electric energy converter I of the vertical axis wind driven generator and comprises an inner cylinder and an outer cylinder which are sleeved with each other, and an annular accommodating cavity is formed between the inner cylinder and the outer cylinder; the outer cylinder body is arranged in a divergent extending mode with the center of a circle, the three support legs are positioned on the same horizontal plane, and the bottom surface of any support leg is sunken into the support leg to form a rectangular accommodating groove; the three main blades are arc-shaped sheet bodies and are respectively arranged at the tail ends of the three supporting legs; the three arc-shaped cracks are respectively arranged on the side wall of the outer barrel body from the lower parts of the fixing points of the two supporting legs fixed to the outer barrel body as starting points, and are obliquely downwards and penetratingly arranged, the inclination directions of the three arc-shaped cracks are opposite, and the lengths of the three arc-shaped cracks are consistent with the radian; the three arc-shaped sliding rails are respectively and correspondingly arranged on the outer side wall of the inner barrel and are arranged at the vertical projection positions of the three arc-shaped cracks on the outer side wall of the inner barrel, and the radians and the extension directions of the three arc-shaped sliding rails are consistent with those of the three arc-shaped cracks; the three rotating support legs are respectively and correspondingly arranged right below the three support legs, the front ends of the three support legs are not mutually contacted with the three main blades, and the tail ends of the three rotating support legs respectively extend into the three arc-shaped cracks and are connected to the three arc-shaped slide rails through slide blocks; a slider drive that drives the slider; the three folding blades are respectively arranged between the three rotating supporting legs and the three supporting legs, the first edge of any folding blade is fixed in the accommodating groove below one supporting leg, the second edge of any folding blade is fixed on the upper end surface of the corresponding rotating supporting leg, and any folding blade can move downwards along with the rotation of the rotating supporting leg and is unfolded into a sector; the fan ribs are dispersedly inserted into the three folding blades, and the tail ends of the fan ribs are arranged on the three arc-shaped sliding rails in a sliding manner; and any of the three legs of the first wind capture assembly is shorter in length than any of the three legs of the second wind capture assembly; in the axial direction of the sleeve, the three legs of the first wind power capture assembly and the three legs of the second wind power capture assembly are arranged in a staggered mode;
the anemoscope is arranged on the support column II, and the support column II and the bottom of the support column I are fixed at the same altitude; the distance between the support column II and the support column I is less than 30 m;
the local monitor is in communication connection with the anemometer and is used for acquiring and storing an average wind speed value I detected by the anemometer within a time period t1 in real time;
the controller is in communication connection with the sliding block drive, the local monitor and the meteorological satellite, the controller is used for inquiring the position of the sliding block drive in real time, and if the sliding block drive is located at the uppermost end of the three arc-shaped sliding rails, the inquiry result is marked as '1'; if the slide block drive is positioned at the lowest end of the three arc-shaped slide rails, the query result is marked as '0';
the controller is also used for acquiring the average wind speed value I stored in the local monitor in real time within the time period t1, pre-acquiring the average wind speed value II predicted by the meteorological satellite within the time period t1, and comparing the average wind speed value I detected by the anemometer within the time period t1 with the average wind speed value II to obtain a comparison result:
if the average wind speed value I is less than or equal to the average wind speed value II is less than or equal to 9.5 m/s; or when the average wind speed value I is less than or equal to 9.5m/s and the average wind speed value II is more than or equal to 9.6 m/s; the controller inquires the position of the slide block drive, if the inquiry result is '1', the slide block drive is started to drive the three rotating support legs to slide along the three arc-shaped slide rails in the direction of oblique lower direction, and simultaneously, the three folding blades are driven to be unfolded to be in a fan shape; the controller inquires the position of the slide block drive, and if the inquiry result is '0', the slide block drive is not started;
if the average wind speed value I is larger than or equal to the average wind speed value II and is larger than or equal to 9.6 m/s; or when the average wind speed value I is more than or equal to 9.5m/s and the average wind speed value II is less than or equal to 9.6m/s, the controller inquires the position of the slide block drive, and if the inquiry result is '1', the slide block drive is not started; the controller inquires the position of the slide block drive, if the inquiry result is '0', the slide block drive is started to drive the three rotating support legs to slide obliquely upwards along the three arc-shaped slide rails, and meanwhile, the three folding blades are driven to fold and pack up.
2. The wind power monitoring-based stereoscopic wind farm power generation system of claim 1, wherein the deployed area of any one of the main blades is larger than the deployed fan area of any one of the folded blades.
3. The wind monitoring-based stereoscopic wind farm power generation system of claim 1, wherein any one of the three arcuate slits has an angle with the axial direction of the sleeve of less than 30 degrees.
4. The wind power monitoring-based stereoscopic wind farm power generation system of claim 1, wherein the plurality of fan ribs are coated with magnetic powder, and two adjacent folding surfaces are adsorbed to each other when folded.
5. The wind monitoring-based stereoscopic wind farm power generation system of claim 4, wherein any one of the three folded blades further comprises:
the oxford fabric jacket layer is of a fan-shaped structure and is a main body of any one of the folding blades;
and any one of the metal sheets is of a trapezoidal structure, and the metal sheets are sequentially embedded into the Oxford fabric jacket layer along the extending direction of the fan ribs to form a folding surface.
6. The wind monitoring-based stereoscopic wind farm power generation system of claim 5, wherein the thickness of any foil does not exceed 5 mm.
7. The wind monitoring-based stereoscopic wind farm power generation system of claim 1, wherein the 40min < time period t1 < 60 min.
8. The wind monitoring-based stereoscopic wind farm power generation system of claim 1, further comprising:
if the average wind speed value I is less than or equal to 9.5m/s, the average wind speed value II is more than or equal to 9.6m/s, and the average wind speed value II-the average wind speed value I is less than or equal to 1.0 m/s; the controller inquires the position of the slide block drive, if the inquiry result is '1', the slide block drive is started to drive the three rotating support legs to slide along the three arc-shaped slide rails in the direction of oblique lower direction, and simultaneously, the three folding blades are driven to be unfolded to be in a fan shape; the controller inquires the position of the slide block drive, and if the inquiry result is '0', the slide block drive is not started;
if the average wind speed value I is less than or equal to 9.5m/s, the average wind speed value II is more than or equal to 9.6m/s, and the average wind speed value II-the average wind speed value I is more than 1.0 m/s; the controller inquires the position of the slide block drive, and if the inquiry result is '1', the slide block drive is not started; the controller inquires the position of the slide block drive, if the inquiry result is '0', the slide block drive is started to drive the three rotating support legs to slide obliquely upwards along the three arc-shaped slide rails, and meanwhile, the three folding blades are driven to fold and pack up.
9. The wind monitoring-based stereoscopic wind farm power generation system of claim 1, further comprising:
a vertical axis wind turbine electric energy converter II; and
umbrella-type wind wheel, it includes the stalk portion and uses the stalk portion to send out a plurality of arc fan blades that set up as central arc, and the lower extreme of stalk portion passes through the coaxial rotatable cover of cylindrical bearing and establishes telescopic top, and umbrella-type wind wheel's fan blade and the three main blade of second wind-force capture component are not contacted each other, and set up in the stalk portion and hold the cavity, vertical axis aerogenerator electric energy converter II sets up in the cavity that holds of stalk portion.
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