CN203515963U - Wind turbine modularized assembly, wind turbine and wind turbine set thereof - Google Patents
Wind turbine modularized assembly, wind turbine and wind turbine set thereof Download PDFInfo
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- CN203515963U CN203515963U CN201320403819.3U CN201320403819U CN203515963U CN 203515963 U CN203515963 U CN 203515963U CN 201320403819 U CN201320403819 U CN 201320403819U CN 203515963 U CN203515963 U CN 203515963U
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model relates to a wind turbine modularized assembly, a wind turbine and a wind turbine set thereof. The wind turbine has power output from the cut-in wind speed and rated power during the rated wind speed. The wind turbine modularized assembly comprises a wind turbine tower provided with the lower end and the upper end, the upper end is in butt joint with a cabin, the cabin is in butt joint with a hub, the hub transmits the capturing energy and is in butt joint with a blade set, the blade set comprises at least two wind turbine rotor blades, and at least parts of the rotor blades change the pitch through a pitch changing system at a pitch angle. Each rotor blade has the blade length between the fixed end and the free end, and the fixed end is fixed to the hub, rotates inside a rotation plane and captures the wind energy. According to the blade set, at least a part of the first blade set has the first appearance constructed according to the aerodynamics, the first blade set is used for capturing the high wind speed higher than the wind speed threshold value, at least a part of the second blade set has the second appearance constructed according to the aerodynamics, and the second blade set is used for capturing the low wind speed lower than the wind speed threshold value.
Description
Technical field
The present invention relates to a kind of wind turbine modular assembly, it is for assembling wind turbine machine, this wind turbine has from the power stage of incision wind speed and the rated power when the rated wind speed, described wind turbine modular assembly comprises at least two group wind turbine towers, Wind turbine nacelle, wheel hub and vane group, wherein:
-described wind turbine tower has lower end and upper end, and described upper end is set to be docked to
-described Wind turbine nacelle, this Wind turbine nacelle is set to be docked to
-described wheel hub, this wheel hub is set to transmit the energy capturing, and is set to be docked to
-described vane group, this vane group comprises at least two wind turbine rotor blades, at least a portion of described rotor blade is made as by pitch-controlled system and becomes oar with a propeller pitch angle; And rotor blade has the length of blade between fixed end and free end described in each, described fixed end is made as and is fixed on wheel hub, to rotate in plane of rotation, and capturing wind energy,
Described at least two group vane group comprise:
At least a portion of the-the first vane group has first profile of constructing according to aerodynamics, and this first profile of constructing according to aerodynamics is set to catch high wind speed more than wind speed threshold value, and
At least a portion of the-the second vane group has second profile of constructing according to aerodynamics, and this second profile of constructing according to aerodynamics is set to catch the low wind speed below wind speed threshold value.
background technique
The present invention relates to wind turbine assembly and wind turbine for low wind speed and high wind speed.
Normally, wind turbine and wind park are by making for the optimized assembly of specific wind condition.This means, for specific position or wind condition, wind turbine is constructed to by using unified or identical wind turbine, obtains as much as possible energy.Therefore, wind turbine shows best performance by being designed under certain wind speed.This can be for low wind speed, or for high wind speed.
model utility content
An object of the present invention is to provide the standard component for wind park, provide simultaneously and make wind park can under low wind speed and under high wind speed, catch the technological means of energy.
Another object of the present invention is to provide a kind of wind park, and this wind park can be built and be formed by identical element or assembly, and produces best power stage, even in large-scale wind speed, also may realize.
Object of the present invention realizes by a kind of wind turbine modular assembly, this wind turbine modular assembly is for assembling wind turbine machine, this wind turbine has power stage and the rated power when rated wind speed being produced by incision wind speed, described wind turbine modular assembly comprises at least two group wind turbine towers, Wind turbine nacelle, wheel hub and vane group, wherein:
-described wind turbine tower has lower end and upper end, and described upper end is set to be docked to
-described Wind turbine nacelle, this Wind turbine nacelle is set to be docked to
-described wheel hub, this wheel hub is set to transmit the energy of catching, and is set to be docked to
-described vane group, this vane group comprises at least two wind turbine rotor blades, at least a portion of described rotor blade is made as by pitch-controlled system and becomes oar with a propeller pitch angle; And rotor blade has the length of blade between fixed end and free end described in each, described fixed end is made as and is fixed on wheel hub, to rotate in plane of rotation, and capturing wind energy,
Described at least two group vane group comprise:
At least a portion of the-the first vane group has first profile of constructing according to aerodynamics, and this first profile of constructing according to aerodynamics is set to catch high wind speed more than wind speed threshold value, and
At least a portion of the-the second vane group has second profile of constructing according to aerodynamics, and this second profile of constructing according to aerodynamics is set to catch the low wind speed below wind speed threshold value.
In a specific embodiment, described profile of constructing according to aerodynamics is that wherein, the first blade in the first vane group has the first length of blade, the second blade in the second vane group has the second length of blade, and described the second length of blade is greater than described the first length of blade.
Intermediate value or mean value that described wind speed threshold value is wind speed profile, it obtains by Weibull distribution estimation, or obtains by measuring or estimate in locality.Normally this wind speed comprises directional information, and represents with wind rose.
Those skilled in the art understand these difference, and focus on conventional observation.For there being assigned direction, or be reduced to the situation that does not comprise directional information, have individual peak in wind speed profile, wind speed threshold value is divided into wind speed low wind speed part and high wind speed part simply.Conventionally, wind speed threshold value just at peak around, and many times just on the higher one end at peak.
Suppose, the distribution of wind speed threshold value or the starting point of matching be, the mean value of the distribution of these measurements, matching or Analysis deterrmination.
Thereby, make wind turbine assembly more produce, transport, assemble and safeguard production line, this will reduce resource on the whole, reduce the cost that comprises human capital.
Thereby, according to the present invention, a kind of wind turbine assembly is provided, and it can for building wind power plant or turbo machine,---comprising wind park---these wind turbines can move and generating in wind speed on a large scale effectively, thereby improve the overall reliability of capturing wind energy.
Those skilled in the art know; although the element in assembly or module are interpreted as that be identical concerning each low wind speed or high wind speed are caught turbo machine; yet a little adjustment is carried out in the interface of different elements or intermodule; also be natural needs, and still in protection scope of the present invention.
Vane group according to the present invention comprises different mode of executions.
In one embodiment, vane group comprises three blades, and each blade extends to blade tip from the mounting points of wheel hub.These blades can be set to become oar by pitch-controlled system, and described pitch-controlled system is between wheel hub and blade.
In another embodiment, vane group comprises two blades, each blade has inner side blade-section and outside blade-section, described inner side blade-section is mounted on wheel hub, described outside blade-section, by the pitch-controlled system between two blade-sections, becomes oar with respect to inner side blade-section.
In part, become in the preferred embodiment of oar mode of execution, the inner side blade-section of the first vane group is identical with the inner side blade-section of the second vane group.In this embodiment, the first outside blade-section has first profile of constructing according to aerodynamics of catching for high wind speed, and the second outside blade-section has second profile of constructing according to aerodynamics of catching for low wind speed.
In another embodiment, the first inner side blade-section is set to high wind speed and catches, and the second inner side blade-section is set to low wind speed and catches.
According to another kind of mode of execution, specialization of the present invention is, it has controller, and this controller, under low wind speed acquisition mode and high wind speed acquisition mode, is controlled the wind turbine modular assembly having assembled.
Thereby identical controller can be used for different low wind speed wind turbine or high wind speed wind turbine.
Those skilled in the art know, and wind turbine assembly can be made as with a controller, and this controller has and is suitable for the program of low wind speed operation or one group and controls instruction.Equally, also can provide another controller, it has and is only suitable for the program of high wind speed operation or one group and controls instruction.
According to another embodiment of the invention, specialization of the present invention is, it has:
The first blade in the-the first vane group, it has the first length of blade, and
The second blade in the-the second vane group, it has the second length of blade, and described the second length of blade is longer than described the first length of blade.
Thereby, two kinds of different wind turbine assemblies are provided, wherein, longer blade allows to catch the wind of low wind speed, and shorter blade allows to catch the wind of high wind speed.
Have identical structural element, and be only that length of blade is different substantially, this is a kind of simple especially mode that realizes the object of the invention.
According to another kind of mode of execution, specialization of the present invention is, described pylon comprises:
The-at least the first pylon, it has the first pylon height, and
The-at least the second pylon, it has the second pylon height.
Thereby, two kinds of different wind turbine assemblies are provided, wherein, in most of the cases, higher wind turbine will be caught most energy.
In most of the cases, higher pylon radius is less, catches, thereby a kind of especially easily mode of execution of configuration of the present invention is provided for high wind speed.
According to another kind of mode of execution, specialization of the present invention is, in the situation that low wind speed is caught, described controller cuts off generating at wind speed during higher than wind speed threshold value, and this wind speed threshold values can be 7 meter per seconds, is preferably 6 to 9 meter per seconds,
Thereby, provide a kind of low wind speed to catch the assembly of turbo machine, it is made as from low wind speed and catches energy, and wherein assembly or wind turbine are made as in low wind speed operation, to catch energy.
Conventionally, controller is set to reduce blade rotary, so that wind turbine when wind speed surpasses wind speed threshold value 2 to 3 meter per second, is approximately 8, stops generating during to 10 meter per second.
According to another embodiment of the invention, its specialization is also to comprise at least two:
-axle, its one end is connected to wheel hub, and the other end is connected to
-generator, it is connected to power driving mechanism.
According to another kind of mode of execution, specialization of the present invention is, generator comprises:
-first kind generator, it is for catching high wind speed, and with the rated power generating of wind turbine; This first kind generator is preferably double-fed type influence generator, and
-Equations of The Second Kind generator, it is for catching low wind speed, and with half (or between 30-60%) generating of the rated power of the wind turbine of assembling; Equations of The Second Kind generator is preferably double-fed type induction (DFIG) generator or permanent magnetism (PM) generator.
Thereby, the best first kind generator of catching for high wind speed is provided effectively, and the suitable driving mechanism together using, with the first kind wind turbine with catching for high wind speed, match.In addition, provide the Equations of The Second Kind of catching for low wind speed generator, its size is less than the size of first kind generator.In addition, it is advantageous that required space is less, required material still less.
According to another kind of mode of execution, specialization of the present invention is to comprise at least two first kind generators, for low wind speed, catches with high wind speed and catches, and this first kind generator is made as the rated power generating with wind turbine; This first kind generator is preferably double-fed type influence generator, comprises in addition:
-at least one auxiliary generator, this auxiliary generator is Equations of The Second Kind generator, for low wind speed, catches, half (or between 30-60%) generating of the wind turbine rated power that it is set to assemble; This Equations of The Second Kind generator is preferably double-fed type influence generator, or is preferably permanent magnet generator.
Thereby, a kind of effective driving mechanism is provided, wherein, first kind generator application is in whole wind turbine assemblies, and the second generator of the second type or auxiliary generator can be installed or be retrofitted in wind turbine, to be applicable to low wind speed, catch.
Especially, use permanent magnet generator more effectively at low wind speed, to catch energy.
Especially, first kind generator is double-fed type induction type, and Equations of The Second Kind generator is permanent-magnet type, and this makes to be totally captured as that can move flexibly and effective.
Those skilled in the art know double-fed type influence generator and the difference of permanent magnet generator on cost, and naturally comprise these considerations, can find in some cases, best configured in one piece is that first kind generator is double-fed type induction type, and Equations of The Second Kind generator is also for double-fed type is responded to type---and also measure-alike with first kind generator of size even perhaps.
According to another kind of mode of execution, of the present invention particularly point out be also there is the 3rd, following any in both of the 4th, the 5th or the 6th:
-vane group, the length of blade that it has difference and mutually distinguishes, and
-pylon group, the pylon height that it has difference and mutually distinguishes.
Thereby, make the assembly of the wind turbine that is applicable to wind speed at different levels.
Should expect, a plurality of assemblies or series are more favorably, yet the cost and the manpower that calculate, make, store, manage can expend more.
Equally, according to another embodiment of the invention, its specialization is also have the 3rd, the 4th, the 5th or the 6th following any one in both: the first generator or the second generator.
By disclosed wind turbine modular assembly is assembled, obtain wind turbine, realize one object of the present invention.
Should be appreciated that wind turbine can be obtained by disclosed assembly or external member assembling.Via described assembly or external member, can assemble at least the first wind turbine and at least the second wind turbine.
In addition, should be appreciated that similar elements or the module in assembly can adopt same design, production line and assembly program, different modules needs different design, production line and assembly program.
Yet those skilled in the art will understand the also interface between detecting module or between element, and are encouraged it to modify, so that module fits together mutually.
Object of the present invention realizes by wind park, this wind park comprises the wind turbine that at least one is caught for low wind speed, and at least one wind turbine of catching for high wind speed, these wind turbines obtain via the assembling of wind turbine modular assembly as disclosed.
According to another kind of mode of execution, specialization of the present invention is, described wind park comprises a plurality of wind turbines, this wind turbine assembles via disclosed wind turbine modular assembly, X% is that low wind speed is caught wind turbine, (100-X) % is that high wind speed is caught wind turbine, wherein, X is chosen as and controls wind park in efficiency frontier, optimally to reduce the entire change of the output of wind park, and reduce the cost of electricity-generating of wind park.
Those skilled in the art will find inspiration in available a plurality of combined optimization methods from scientific and technical literature and financial document.
An example is the use of Ma Keweizi optimum theory, but this and not exclusive example.
One skilled in the art will know that, when obtaining or catching the variability of a certain amount of energy or risk selection physical measurement, need certain degrees of freedom.
Starting point has been determined the relative measurement of the risk changing based on wind speed.
Equally, those skilled in the art know, and being that wind energy is caught while selecting physical measurement to income, can have certain degrees of freedom.
The energy output that starting point is wind turbine.Another starting point is the cost of electricity-generating of wind turbine.
Use well-known path optimizing or program, those skilled in the art will obtain the specific optimum value of dissimilar wind turbine.
These optimum values form one group of preferred risk income combination.These optimum values, or optimal solution, be usually known as " efficiency frontier " (effective frontier), and those skilled in the art are attempting designing and arrange wind turbine to approach this efficiency frontier, or in efficiency frontier.
The specific combination or the ratio that when priming the pump, produce top gain are very favourable.Depend on selected method, this preferred optimum value is called as tangent line solution.This is starting point for selecting the specific process of the optimum combination ratio of wind turbine, yet one skilled in the art will appreciate that for special requirement, and other optimum values in efficiency frontier may be more favorably.
According to another kind of mode of execution, of the present invention particularly pointing out is, wind park comprises communication device, and this communication device, for transmit operation information between at least two kinds of wind turbines, preferably transmits operation information between every wind turbine in wind park.
Thereby, the method for controlling wind park is provided, thereby in check power stage is covered from the zero maximum power output value to wind turbine, and changed as few as possible for integral body.
According to another kind of mode of execution, special way of the present invention is, wind park comprises at least 50% be assembled into and be applicable to the wind turbine that low wind speed is caught.
The advantage of this mode of execution is, the combination of a kind of overall effectively wind turbine or set are provided, because this is easy to set up, and wind turbine can in parallelly be removed.
One object of the present invention realizes by a kind of method of controlling wind park, described wind park comprises the wind turbine of catching for low wind speed assembling and the wind turbine of catching for high wind speed, and described method comprises following steer mode:
-for the wind speed between incision wind speed and wind speed threshold value: control that low wind speed is caught wind turbine and high wind speed is caught wind turbine, by making blade become oar with a propeller pitch angle, this propeller pitch angle is best to given wind speed, output peak output;
-for the wind speed between wind speed threshold value and rated wind speed: control high wind speed and catch wind turbine, by making the first vane group become oar with a propeller pitch angle, this propeller pitch angle is best to given wind speed, output peak output; And
By making the second vane group become oar, output power, makes low wind speed catch wind turbine power and reduces, so that low wind speed is caught the power sum output rated power that wind turbine and high wind speed are caught wind turbine;
-for the wind speed higher than rated wind speed; Control high wind speed and catch wind turbine, by making the first vane group become oar, output rated power to produce the propeller pitch angle of rated power; Control low wind speed and catch wind turbine, with output zero power.
Thereby provide according to the steer mode of wind turbine set of the present invention, produced best power stage, or approached best power stage.
According to another kind of mode of execution, the method that is to control wind park that particularly points out of the present invention, wherein, when controlling low wind speed and catch wind turbine to output zero power, the control mode that this low wind speed is caught wind turbine is, by controller, make the second vane group become oar with a propeller pitch angle, make the least-loaded on wheel hub.
Thereby a kind of steer mode is provided, and this steer mode has guaranteed that low wind speed catches wind turbine and can without unnecessary mechanical load in the situation that, dally.
According to another kind of mode of execution, the method that is to control the wind turbine for low wind speed operation assembling that particularly points out of the present invention, the method comprises for following steer mode:
-for the wind speed between incision wind speed and wind speed threshold value: by making blade become oar with a propeller pitch angle, this propeller pitch angle is best for given wind speed, produces peak output,
-for the wind speed between wind speed threshold value and rated wind speed, by making the second vane group become oar, output power, reduce low wind speed and catch the power of wind turbine, so that low wind speed is caught wind turbine and high wind speed, catch the power sum that wind turbine produces and reach the rated power that high wind speed is caught wind turbine, and
-for the wind speed higher than rated wind speed, control low wind speed and catch wind turbine, with output zero power.
Thereby a kind of steer mode is provided, and it provides a kind of persistent mode, wherein, low wind speed is caught wind turbine and was not dallied in the situation that there is no multi-load.
" power reduction " be interpreted as, when reaching specific condition, for example, when specific wind speed or mechanical load, reduces continuously or step by step power or reduce the rotational speed of rotor.This specific condition can be alarm, or when forcing element to reach design limit or similar threshold limit or scope dangerous.This can have nothing to do with actual wind speed or to the incidence rate of blade.
According to another kind of mode of execution, of the present invention particularly pointing out is, the control method of the wind turbine for low wind speed operation assembling, wherein, when controlling low wind speed and catch wind turbine with output zero power, the control mode that this low wind speed is caught wind turbine is, by controller, makes the second vane group become oar with a propeller pitch angle, and this propeller pitch angle makes the load minimizes on wheel hub.
Accompanying drawing explanation
Fig. 1 shows wind turbine modular assembly, and it comprises pylon, cabin, wheel hub and vane group;
Fig. 2 shows another mode of execution of wind turbine modular assembly, and it comprises pylon, cabin, wheel hub and vane group;
Fig. 3 shows the example of wind speed profile, and mean wind velocity is 3 meter per seconds, 5 meter per seconds and 7 meter per seconds;
Fig. 4 shows wind speed profile figure, and low wind speed is caught and the boundary of high wind speed between catching;
Fig. 5 shows the wind turbine modular assembly assembling, and it has, and low wind speed is caught wind turbine and high wind speed is caught wind turbine;
Fig. 6 A and B show the power curve according to wind speed;
Fig. 7 shows the embodiment of wind park or wind energy turbine set; And
Fig. 8 A shows and uses catch/" low " wind speed of " height " wind speed of the first vane group and the second vane group to catch; B shows the wind park of global optimization, this wind park comprises a plurality of wind turbines that assemble, the allocation proportion of blade assembly is according to the combinatorial optimization of wind park, be set to move on efficiency frontier, this efficiency frontier is that the entire change of optimally Ke Shi wind park power stage reduces, and reduces cost of electricity-generating.
| | Explanation | |
| 1 | Wind turbine |
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| 2 | |
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| 4 | |
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| 5 | |
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| 6 | |
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| 7 | |
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| 8 | Blade | |
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| 10 | Pitch-controlled |
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| 11 | Length of |
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| 13 | Free end |
| 14 | The profile of constructing according to |
| 15 | High wind speed is caught |
| 16 | Low wind speed is caught |
| 17 | |
| 20 | Wind speed profile |
| 21 | Wind |
| 100 | |
| 110 | |
| 200 | High wind speed is caught |
| 201 | Low wind speed is caught |
| 202 | |
| 300 | Hazard and benefit figure |
| 301 | Hazard and benefit |
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| 305 | The tangent line combination of hazard and benefit |
Embodiment
Fig. 1 shows wind turbine modular assembly 1, and it comprises pylon 2, and pylon 2 has lower end 3 and for being docked to the upper end 4 in cabin 5, as shown in the figure, this cabin 5 is connected to pylon 3, and wheel hub 6 is set to dock with vane group 7.
Wind turbine modular assembly 1 has at least two vane group 7, i.e. the first vane group 7 ' and the second vane group 7 ' '.Below to the part of each vane group or parts, first group with " ' " and " height " describe, second group with " ' ' " and " low " describe.
Each vane group 7 has blade 8, and this blade 8 can become oar with a propeller pitch angle 9 by pitch-controlled system 10.This pitch-controlled system can be arranged on each blade 8, or as in this embodiment, is arranged on wheel hub 6.
Each blade 8 has length of blade 11 and fixed end 12, and fixed end 12 is fixed on wheel hub 6 blade 8, and each blade 8 has free end 13.
Each vane group 7 and another vane group 7 have at least same, and this difference is that the length of blade 11 of each vane group is different from the length of blade of another vane group.
In this case, this first vane group 7 ' has first length of blade the 11 ', the second vane group 7 ' ' have the second length of blade 11 ' '.
Equally, the blade 8 in vane group 7 can have the different profiles of constructing according to aerodynamics 14.Specifically, the first vane group 7 ' has first profile 14 ', the second vane group 7 ' of constructing according to aerodynamics ' have second profile 14 ' of constructing according to aerodynamics '.
First profile 14 ' of constructing according to aerodynamics catches 15 for high wind speed, second profile 14 ' of constructing according to aerodynamics ' for low wind speed, catch 16.
In a typical embodiment, first profile 14 ' of constructing according to aerodynamics catches 15 for high wind speed, this represents that the first length of blade 11 ' is less than the second vane group 7 ' ' the second length of blade 11 ' ', and the second vane group 7 ' ' for low wind speed, catch 16.
In one embodiment, for high wind speed, catch 15 first profile 14 ' of constructing according to aerodynamics and be also different from second profile 14 ' of constructing according to aerodynamics of catching 16 for low wind speed ', its difference is, the cross section that the cross section of the first blade 8 ' in the first vane group 7 ' was designed to or was optimized for the wind of catching at a high speed, and the second vane group 7 ' ' in the second blade 8 ' ' is designed to or is optimized for the wind of catching low speed.
To explain the difference of " low " wind speed and " height " wind speed below.
In addition, controller 17 is configured to control the wind turbine being assembled by wind turbine modular assembly 1.The specialization of this controller 17 is, the pattern that it has at least two kinds of different controls or controls wind turbine.The first pattern catches 15 for high wind speed, and the second pattern catches 16 for low wind speed.
Not shown controller 17, but this controller 17 is interpreted as and is arranged in wind turbine.
Fig. 2 shows another embodiment of the present invention.Referring to Fig. 2, this mode of execution shows a kind of wind turbine assembly 1, and it has the first vane group 7 ' and the second vane group 7 ' ', each vane group comprises two blades 8.In this embodiment, blade 8 is for partly becoming blade sheet, and wherein inner side blade-section is mounted on wheel hub 6, and separates by pitch-controlled system 10 and outside blade-section.This outside blade-section can, with respect to inner side blade-section, become oar with propeller pitch angle 9.
In this embodiment, this inner side blade-section has the profile of constructing according to aerodynamics, the first vane group 7 ' and the second vane group 7 ' ' each inner side blade-section this profile of constructing according to aerodynamics all identical.The outside blade-section of the first blade 8 ' has first profile 14 ' of constructing according to aerodynamics of catching 15 for high wind speed.The second blade 8 ' ' outside blade-section there is second profile 14 ' of constructing according to aerodynamics of catching 16 for low wind speed '.
In another embodiment, the inner side blade-section of the first vane group 8 ' can have the profile of constructing according to aerodynamics 14 ', the second vane group 8 ' of catching 15 for high wind speed ' inner side blade-section can have the profile 14 ' of constructing according to aerodynamics of catching 16 for low wind speed '.
Fig. 3 shows the example of wind speed profile 20, and wind speed is respectively 3 meter per seconds, 5 meter per seconds, 7 meter per seconds, and mean wind velocity is respectively 3.4 meter per seconds, 5.6 meter per seconds, 7.9 meter per seconds.
This wind speed profile establishing criteria IEC64000, approaches Weibull distribution (Weibull distributions).
Fig. 4 shows the wind speed profile 20 that wind speed is 5 meter per seconds, and the wind speed threshold value 21 of the wind speed profile that this is special is 5.6 meter per seconds.This wind speed threshold value 21, or be briefly threshold value, is divided into wind speed that low wind speed is caught 16th district and high wind speed is caught 15th district.
Fig. 5 shows two wind turbines that assemble 100.Wind turbine modular assembly 1 is assembled into first wind turbine 100 ' of catching 15 for high wind speed.Wind turbine modular assembly 1 is assembled into second wind turbine 100 ' of catching 16 for low wind speed '.
It should be noted that in this embodiment two wind turbines 100 ' and 100 ' ' there is identical pylon 2, cabin 5, wheel hub 6 and controller 17.
The first wind turbine 100 ' has the first vane group 7 ', and this first vane group 7 ' has the first blade 8 ' as caught publicly 15 for high wind speed.
The first wind turbine 100 ' and the second wind turbine 100 ' ' the formation possible minimum wind park of the 110(of wind park).
The second wind turbine 100 ' ' have the second vane group 7 ' ', this second vane group 7 ' ' have the second blade 8 ' as caught publicly 16 for low wind speed '.
Fig. 6 A show high wind speed wind turbine the high wind speed of the first wind turbine 100 ' catch power curve 200.
This chart also shows the different embodiment's of low wind speed wind turbine low wind speed and catches power curve 201,
The first wind turbine 100 ' has high wind speed and catches power curve 200, and this power curve starts to rise when incision wind speed is about 3 meter per second.At approximately 9 meter per second places, rise to maximum value, and rated power is output as this power stage of about 1.5MW(and remains unchanged until arrive cut-out wind speed approximately 20 meter per seconds).
The second wind turbine 100 ' ' there is low wind speed and catch power curve 201, this power curve starts to rise when incision wind speed is about 3 meter per second.This low wind speed is caught power curve 201 and is caught power curve 200 with high wind speed and compare, and the rate of climb is faster, and at wind speed threshold value 21 places, or wind speed threshold value more than 21 starts to decline, wind speed threshold value 21 be low wind speed catch 15 and high wind speed catch 16 separation.In this embodiment, the decline of low wind speed power curve is because spinner velocity slows down, until stop completely when wind speed is between 9.5 meter per second to 10 meter per seconds.
In the embodiment of the first wind turbine 100 ', rotor is approximately 92 meters; At the second wind turbine 100 ' ' three different embodiments in, rotor is respectively approximately 100 meters, 110 meters and 120 meters.
Fig. 6 B shows total power curve 202, in illustrated certain wind speed, distribute in 20 situations, the generated output of the first wind turbine 100 ' and the second wind turbine 100 ' ' in the summation of generated output of arbitrary selection.
As seen from total power curve 202, by the peak value towards wind speed profile 20, " make progress " mobile, Di wind speed district is by generation or catch significant power.
For these, specifically select, total output is caught and will be increased respectively 62%, 71% or 80%.These numerals obtain by the power of generation is simply added up or integrated, and these power produce when wind speed changes with wind speed profile 20.
Another advantage is, the variability of the power producing will reduce significantly, so that the power that wind park's (at least comprising the first wind turbine and the second wind turbine) produces less variation in wind speed on a large scale.
Fig. 7 shows the first wind turbine 100 ' and the second wind turbine 100 ' that forms wind park 110 ' a plurality of (more than two) combine.
In this embodiment, wind turbine 110 comprises a series of wind turbine 100, and this wind turbine 100 is for catch the first wind turbine 100 ' of 15 for high wind speed, and the second wind turbine 100'' that catches 16 for low wind speed.
In this specific embodiment, the first wind turbine 100 ' accounts for 50%, the second wind turbine 100 ' ' account for 50%.
Fig. 8 A shows hazard and benefit Figure 30 0, or shows high wind speed and catch the general status that wind turbine and low wind speed are caught wind turbine.
Hazard and benefit Figure 30 0 has described measurement by the power stage of the set generation of wind turbine or wind turbine or risk or the variability of generated energy in an axle or a dimension.
In another axle or another dimension, described to measure the power producing, benefit or the energy cost (CoE) of wind turbine, weigh the ability of wind turbine capturing wind energy.
This is measured as absolute or relative, and those skilled in the art know, and these measurements can be determined or be collected by several different methods.
In hazard and benefit Figure 30 0, the first wind turbine 100 ' catches 15 for high wind speed, and its specific one group of hazard and benefit survey plan is caught as shown in hazard and benefit point 300 ' as high wind speed.Equally, for low wind speed, catch the second wind turbine 100 ' of 16 ' corresponding low wind speed catch hazard and benefit point 300 ' '.
In this case---and partly because wind speed profile and low wind speed are caught the design that wind turbine and high wind speed are caught wind turbine---low wind speed is caught risk and the benefit of wind turbine and all lower than high wind speed, is caught risk and the benefit of wind turbine.
Yet, importantly, combine high wind speed and catch a kind of separately arbitrarily lower than in two kinds of wind turbines of the risk of hazard and benefit 301 of combination that wind turbine and low wind speed catch wind turbine, and its benefit, between the benefit of two kinds of wind turbines, is caught wind turbine but preferably comparatively approach high wind speed.
Generally speaking, low wind speed is caught the combination that wind turbine and high wind speed are caught wind turbine, and its configuration is more better than the combination that two low wind speed are caught wind turbine, or two high wind speeds are caught the combination of wind turbine.
Claims (12)
1. a wind turbine modular assembly (1), be used for being assembled into wind turbine (100), described wind turbine (100) has the power stage from incision wind speed, and the rated power based on rated wind speed, wherein, described wind turbine modular assembly (1) comprises at least two group wind turbine towers (2), Wind turbine nacelle (5), wheel hub (6) and vane group (7), wherein:
Described wind turbine tower (2) has lower end (3) and upper end (4), and described upper end (4) are set to be docked to
Described Wind turbine nacelle (5), described Wind turbine nacelle (5) is set to be docked to
Described wheel hub (6), described wheel hub (6) is set to transmit the energy capturing, and is set to be docked to
Described vane group (7), described vane group (7) comprises at least two wind turbine rotor blades (8), at least a portion of wherein said rotor blade (8) is made as by pitch-controlled system (10) and becomes oar with a propeller pitch angle; Rotor blade described in each (8) has the length of blade (11) between fixed end (12) and free end (13), and described fixed end (12) is made as and is fixed on wheel hub (6) above, to rotate in plane of rotation, and for capturing wind energy,
Described at least two group vane group (7) comprising:
At least a portion of the first vane group (7 ') has first profile (14 ') of constructing according to aerodynamics, and this first profile (14 ') of constructing according to aerodynamics is caught (15) for the above high wind speed of wind speed threshold value (21), and
At least a portion of the second vane group (7 ") has second profile of constructing according to aerodynamics (14 "), this second profile of constructing according to aerodynamics (14 ") are caught (16) for the following low wind speed of wind speed threshold value (21), and wherein,
The first blade (8 ') in the first vane group (7 ') has the first length of blade (11 '), and
The second blade in the second vane group (7 ") (8 ") (11 "), (11 ") are greater than described the first length of blade (11 ') to described the second length of blade to have the second length of blade.
2. according to the wind turbine modular assembly (1) of claim 1, characterized by further comprising controller (17), described controller (17), with high wind speed acquisition mode and low wind speed acquisition mode, is controlled the wind turbine modular assembly (1) assembling.
3. according to the wind turbine modular assembly (1) of claim 1, it is characterized in that, described pylon (2) comprising:
At least the first pylon (2 '), it has the first pylon height, and
At least the second pylon (2 "), it has the second pylon height, and described the second pylon height is different from described the first pylon height.
4. according to the wind turbine modular assembly (1) of claim 2, it is characterized in that, in the situation that low wind speed is caught (16), described controller (17) cuts off generating during higher than wind speed threshold value (21) at wind speed, described wind speed threshold value is 7 meter per seconds, is preferably 6 to 9 meter per seconds.
5. according to the wind turbine modular assembly (1) of claim 1, characterized by further comprising at least two:
Axle, its one end is connected to wheel hub (6), and the other end is connected to
Generator, it is connected to power driving mechanism.
6. according to the wind turbine modular assembly (1) of claim 5, comprising:
-at least two first kind generators, described first kind generator catches (16) for low wind speed and high wind speed is caught (15), and described first kind generator is with the rated power generating of wind turbine; Described first kind generator is double-fed type influence generator, and
-at least one auxiliary generator, described auxiliary generator is Equations of The Second Kind generator, for low wind speed, catches (16), between the 30-60% of described Equations of The Second Kind generator with the first wind turbine (100 ') rated power between assembling, generates electricity; Described Equations of The Second Kind generator is double-fed type influence generator or magneto.
7. according to the wind turbine modular assembly (1) of claim 1, it is characterized in that also thering is the 3rd, the 4th, the 5th or the 6th following any one in both:
Vane group (7), the length of blade (11) that it has difference and mutually distinguishes, and
Pylon group (2), the pylon height that it has difference and mutually distinguishes.
8. a wind turbine (100), is characterized in that, described wind turbine (100) is assembled by wind turbine modular assembly according to claim 1 (1).
9.Yi Zhong wind park (110), what comprise that at least one assembles according to the wind turbine modular assembly (1) of claim 1 catches wind turbine (100 "), and the second wind turbine (100 ') of (15) is caught at least one assembling for high wind speed of (16) for low wind speed.
10.Yi Zhong wind park (110), comprise a plurality of wind turbines (100) that assemble according to the wind turbine modular assembly (1) of claim 1, X% is that low wind speed is caught wind turbine, (100-X) % is that high wind speed is caught wind turbine, wherein, X is chosen as and controls wind park in efficiency frontier, the entire change of described efficiency frontier Shi Shi wind park (110) power stage reduces, and reduces the optimum value of the cost of electricity-generating of wind park (110).
11. according to the wind park of claim 9 or 10 (110), comprise communication device, described communication device at least two kinds of wind turbines (100 ', transmit operation information between 100 "), and be preferred between every wind turbine (100), transmitting operation information in wind park (110).
12. according to the wind park of claim 9 (110), comprise at least 50% be assembled into and be applicable to low wind speed and catch the wind turbine of (16) (100).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DKPA201270418 | 2012-07-09 | ||
| DKPA201270418A DK201270418A (en) | 2012-07-09 | 2012-07-09 | Wind Turbines for Low and High Wind Speeds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203515963U true CN203515963U (en) | 2014-04-02 |
Family
ID=48464151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320403819.3U Expired - Lifetime CN203515963U (en) | 2012-07-09 | 2013-07-08 | Wind turbine modularized assembly, wind turbine and wind turbine set thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN203515963U (en) |
| DK (1) | DK201270418A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108474348A (en) * | 2015-12-23 | 2018-08-31 | 维斯塔斯风力***集团公司 | Control method for wind turbine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015014965A1 (en) | 2015-11-20 | 2017-05-24 | Wind & Mohr GmbH | Hub device, hub-wing device, repeller device, wind turbine and manufacturing method and use thereof |
-
2012
- 2012-07-09 DK DKPA201270418A patent/DK201270418A/en not_active Application Discontinuation
-
2013
- 2013-07-08 CN CN201320403819.3U patent/CN203515963U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108474348A (en) * | 2015-12-23 | 2018-08-31 | 维斯塔斯风力***集团公司 | Control method for wind turbine |
| US11149711B2 (en) | 2015-12-23 | 2021-10-19 | Vestas Wind Systems A/S | Control method for a wind turbine |
Also Published As
| Publication number | Publication date |
|---|---|
| DK201270418A (en) | 2013-05-17 |
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