CN103711642A - System and method for determining wind turbine operation parameters - Google Patents
System and method for determining wind turbine operation parameters Download PDFInfo
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Abstract
The invention relates to a system and method for determining wind turbine operation parameters. The system comprises a pressure sensor and a processing unit. The pressure sensor is arranged on a wind turbine for sensing wind pressure and generating wind pressure signals. The processing unit receives and processes the wind pressure signals to acquire wind speed profiles. Further, the processing unit can process the wind speed profiles and physical parameters of the wind turbine, stored in the processing unit in advance so as to acquire the operation parameters of the wind turbine.
Description
Technical field
The present invention relates to a kind of system and method that can be used for determining wind turbine (Wind Turbine) Operational Limits (Operating Parameters), relate in particular to a kind of system and method that can be used for determining the Operational Limits of wind turbine under real wind field.
Background technique
Along with the continuous concern to environmental and climatic changes, wind turbine has been widely used wind energy has been changed into the other forms of available energy, such as electric energy.Especially, wind turbine is provided with blade, and it can flutter the kinetic energy of catching wind-force, and changes electric energy into by the kinetic energy of its turning handle wind-force.
Conventionally, under certain wind load (Wind Load), wind turbine be often designed to there is series of theories parameter, such as, the blade of wind turbine is designed to have corresponding theoretical deflection curve (Deflection Curves).Yet in real wind field, the operating conditions of wind turbine is changeable and complicated.Therefore, be just necessary to determine the Operational Limits of wind turbine, can not only verify by real wind field data the design of wind turbine like this, and can in wind turbine running, the health status to it assess.
The Operational Limits of wind turbine can comprise the deflection (BladeDeflection) of wind speed (Wind Speed), blade, the asymmtric load (Asymmetric Load) of the moment of flexure (Bending Moment) of blade, wind turbine rotor, thrust (Thrust), driftage (Yaw), spinner velocity (Rotor Speed), alternator speed (Generator Speed), structural vibration (Structural Vibration) etc.
At present, the Operational Limits that has had some to attempt determining wind turbine, such as sensor installation on wind turbine is determined its Operational Limits.Yet, because different sensors has different characteristics, determine that different Operational Limitss just need to install different sensors, the difficulty of the wind turbine installation and maintenance so just increasing.And even if multiple sensor is installed, it can not be determined all Operational Limitss.
So, a kind of new system and method for definite wind turbine Operational Limits need to be provided.
Summary of the invention
It is a kind of for determining the system of wind turbine Operational Limits that one embodiment of the present of invention provide.This system comprises pressure transducer and processing unit.This pressure transducer is arranged on wind turbine sensing blast and produces wind pressure signal.This processing unit receives and processes described wind pressure signal to obtain wind speed profile.Further, this processing unit can be to described wind speed profile and the physical parameter that stores in advance described wind turbine within it process, thereby obtain the Operational Limits of described wind turbine.
It is a kind of for determining the method for wind turbine Operational Limits that another embodiment of the present invention provides.The method comprises utilizes the pressure transducer being arranged on wind turbine to come sensing blast to produce wind pressure signal; Described wind pressure signal is processed to obtain wind speed profile; And utilize processing unit to process to determine described Operational Limits to the physical parameter of described wind speed profile and predetermined wind turbine.
Accompanying drawing explanation
For embodiments of the invention, be described in conjunction with the drawings, the present invention may be better understood, in the accompanying drawings:
Fig. 1 is provided with the present invention for an embodiment's of the wind turbine of the system of definite wind turbine Operational Limits schematic diagram;
Fig. 2 is the side schematic view of the embodiment of wind turbine shown in Fig. 1;
Fig. 3 is that the present invention is for an embodiment's of the system of definite wind turbine Operational Limits schematic diagram; And
Fig. 4 is that the present invention is for an embodiment's of the method for definite wind turbine Operational Limits schematic flow sheet.
Embodiment
Below will describe the specific embodiment of the present invention, and it is pointed out that in the specific descriptions process of these mode of executions, in order to carry out brief and concise description, this specification can not all be done detailed description to all features of actual mode of execution.Should be understandable that; in the actual implementation process of any one mode of execution; in the process in any one construction project or design object; in order to realize developer's objectives; in order to meet system restriction relevant or that business is relevant; usually can make various concrete decision-makings, and this also can change to another kind of mode of execution from a kind of mode of execution.In addition, it will also be appreciated that, although the effort of having done in this development process may be complicated and tediously long, yet for those of ordinary skill in the art relevant to content disclosed by the invention, some designs of carrying out on the basis of the technology contents disclosing in the disclosure, the changes such as manufacture or production are conventional technological means, not should be understood to content of the present disclosure insufficient.
Unless otherwise defined, the technical term using in claims and specification or scientific terminology should be has the ordinary meaning that the personage of general technical ability understands in the technical field of the invention." first " of using in patent application specification of the present invention and claims, " second " and similar word do not represent any order, quantity or significance, and are just used for distinguishing different constituent elements.The similar words such as " one " or " one " do not represent restricted number, and mean and have at least one." comprise " or " comprising " etc. similarly word mean to appear at " comprising " or " comprising " element above or object and contain and appear at element or object and the equivalent element thereof that " comprising " or " comprising " enumerate below, do not get rid of other elements or object." connection " or " being connected " etc., similar word was not defined in connection physics or machinery, was also not limited to directly or indirectly connected.
Figure 1 shows that and be provided with the present invention for an embodiment's of the wind turbine 10 of the system 11 of definite wind turbine Operational Limits schematic diagram.Figure 2 shows that an embodiment's of the wind turbine 10 shown in Fig. 1 side schematic view.As depicted in figs. 1 and 2, wind turbine 10 comprises pylon (Tower) 12, is arranged on cabin (Nacelle) 13 and the rotor (Rotor) 14 of pylon 12 upper ends.Pylon 12 self-supporting devices 100, as ground or platform extend upward, its there is suitable height and shape and in cabin 13 and 100 definition of support device have cavity (not shown).Rotor 14 is provided with rotating wheel hub 15 and at least one blade 16.Rotating wheel hub 15 connects with cabin 13, and blade 16 is arranged on wheel hub 15 and from this wheel hub 15 and stretches out.
In the embodiment shown in Fig. 1 and Fig. 2, wind turbine 10 is provided with plurality of vanes 16, such as three blades.Blade 16 arranges and the certain distance of each interval round wheel hub 15, like this, blade 16 just can be along with the rotation of the wheel hub 15 of rotor 14 and is rotated, thereby catches the kinetic energy (Kinetic Energy) of wind-force and be transformed into other forms of energy by this kinetic energy of turning handle, as electric energy.
In certain embodiments, the length of each blade 16 can be in the scope from 15 meters to 91 meters.In further embodiments, each blade 16 has the kinetic energy that other suitable length are caught wind-force.Like this, in wind turbine 10 operation process, wind-force can impact blade 16 along direction 17, thereby rotor 14 rotates band moving vane 16 along rotatingshaft 102, rotates and catches and transmit wind energy.
In the present embodiment, although wind turbine 12 is horizontal axis wind turbine (Horizontal AxisWind Turbine), in other examples, wind turbine 12 also can be vertical-shaft wind turbo machine (Vertical Axis Wind Turbine).For convenience of explanation, some elements of wind turbine 12 are not shown.
In one embodiment, in the operation process of wind turbine 10, blade 16 can be subject to that wind carries or the impact of other strength, and such as the impact of centrifugal force, this just can cause blade 16 to deflect and make it from neutral or non-inflection point, deflect into inflection point.Therefore, in order to ensure wind turbine 10, safely and steadily run, with regard to being necessary, the Operational Limits of wind turbine is determined or monitored, thereby the field data of assessing the health status of wind turbine 10 and utilizing monitoring to obtain is verified the design of wind turbine.So-called " Operational Limits " can comprise the parameter of wind turbine in running herein, also can refer to parameter when it remains static.
In non-limiting example, the Operational Limits of wind turbine can comprise the deflection (Blade Deflection) of wind speed (Wind Speed), blade, the rotating speed (RotatingSpeed) of the moment of flexure (Bending Moment) of blade, blade, the asymmtric load (Asymmetric Load) of rotor, thrust (Thrust), driftage (Yaw), spinner velocity (Rotor Speed), alternator speed (Generator Speed), structural vibration (StructuralVibration).In certain example, system 11 of the present invention can be determined or monitor all Operational Limitss of wind turbine 10.
Figure 3 shows that the present invention is for an embodiment's of the system 11 of definite wind turbine 10 Operational Limitss schematic diagram.If Fig. 1 is to as shown in Fig. 3, system 11 comprises pressure transducer 18, processing unit 19 and supervisory device 20.
In the present embodiment, pressure transducer 18 is arranged on wind turbine 10, and it can be used for blast to carry out sensing and produce wind pressure signal being convenient to the distribution of wind speed profile (Wind Profile) or wind speed (Wind Speed Distribution) to determine.In embodiments of the present invention, pressure transducer 18 can comprise absolute pressure transducer and/or differential pressure transducer.In a non-limiting example, pressure transducer 18 comprises differential pressure transducer.Wind speed profile can comprise air speed data.
In the present embodiment, pressure transducer 18 is arranged on pylon 12, measures the wind speed profile of diverse location on wheel hub 15 and blade 16.In this example, be provided with five pressure transducers 18, thereby pylon 12 respectively there is one on wheel hub 15 and three blades 16.Five pressure transducers 18 are separately positioned on the middle part 21,22 of corresponding blade 16 and pylon 12 and on the central part (mark) of wheel hub 15.Herein so-called middle part can finger element along the laterally or longitudinally zone line on its length direction.So-called central part can finger wheel hub 15 the center region of circumference.
In other embodiments, pylon 12, all can arrange more than one pressure transducer 18 in each in wheel hub 15 and three blades 16.In certain example, the more than one pressure transducer arranging on pylon 13 and three blades 16 can arrange along its length direction.
Such as, on top 23, middle part 22 and the bottom 24 of each blade 16, be disposed with three pressure transducers 18.The end regions that so-called " end " can finger element herein.Top 23 is arranged on the free end of blade 16, and wheel hub 15 is closed in bottom 24.In certain application, more than one pressure transducer 18 can be set along the circumference of wheel hub 15.Based on specific application, pressure transducer 18 can be arranged on pylon 12, any suitable position on wheel hub 15 and blade 16.
In some instances, can be at pylon 12, on one or more in wheel hub 15 and three blades 16, be provided with pressure transducer 18.Although be provided with in the present embodiment a plurality of pressure transducers 18, in specific example, a pressure transducer 18 also can be only set and carry out sensing.Such as, at the central part of wheel hub 15 or the middle part of one of them blade 16, this pressure transducer 18 is set.
In non-limiting example, pressure transducer 18 is exposed to and impacts wind turbine 10, in the wind such as blade 16, so that measure blast.In some applications, pressure transducer 18 is arranged on the outer surface 101 of wind turbine 10, and it is towards the wind that impacts wind turbine 10.In certain application, pressure transducer 18 also can be arranged on the internal surface of wind turbine 10 and be exposed in wind.
In certain embodiments, treatment device 19 is not limited to any treatment device that specifically can be used to carry out Processing tasks of the present invention.In embodiments of the present invention, treatment device can represent anyly can carry out computing or calculating, for carrying out task of the present invention, is necessary device.As understood by those skilled in the art, treatment device also can represent anyly can receive input this input of rule treatments according to the rules, thereby produces the device of exporting.
As shown in Figure 3, in non-limiting example, processing unit 19 can comprise for receiving and process from the wind pressure signal of pressure transducer 18 determining the first module 25 of wind speed profile and to store the second module 26 of the physical parameter of predetermined wind turbine 10.Conventionally, when wind turbine is manufactured go out after, its physical parameter just can be determined.This physical parameter can include but not limited to material parameter, Aerodynamic parameter and geometric parameter.This geometric parameter can comprise such as the width of shape, length, blade and blade pitch etc.
In the present embodiment, processing unit 19 can further comprise puocessing module 27, and it can receive and process from the wind speed profile of the first module 25 with from the physical parameter of the second module 26, thereby determines the Operational Limits of wind turbine 10.Such as, 27 pairs of wind-force profiles from blade 16 diverse locations of puocessing module and the physical parameter of this blade are analyzed, thereby obtain the blade deflection information of the real-time relevant position at blade 16.The contrast of the deflection information based at blade diverse location, this blade 16 just can be determined with respect to the position information of pylon 12.
In other examples, puocessing module 27 can be analyzed the wind speed profile from wheel hub 15 and the physical parameter of wind turbine, thereby obtain wheel hub 15 with respect to rotatingshaft 102 depart from (Deviation) information, this contributes to the running state of wind turbine 10 to monitor.
In certain embodiments, puocessing module 27 can include wind turbine modeling program, and it can be based on the analysis of wind-force profile and wind turbine physical parameter being determined to the Operational Limits of wind turbine.In non-limiting example, puocessing module 27 can comprise the next real-time acquisition Operational Limits of FEM (finite element) model program.
Such as, in the processing procedure of processing unit 19, FEM (finite element) model program utilizes Runge-Kutta-Nystrom method (Runge-Kutta-Nystrom method) to solve having inputted the kinematics equation of wind-force profile and physical parameter, thereby obtains Operational Limits.The dynamics beam steering model (Dynamic Beam-bending Model) of the lateral deflection (Transverse Deflection) that in one example, this kinematics equation can be based on for blade and obtaining.Application based on different, processing unit 19 can carry out with other kinematics equation the Operational Limits of real-time acquisition wind turbine.
Figure 4 shows that the present invention is for an embodiment's of the method 28 of definite wind turbine 10 Operational Limitss schematic flow sheet.As shown in Figure 4, when operation, in step 29, utilize pressure transducer 18 carry out sensing blast and produce wind pressure signal.Then, in step 30, wind pressure signal analysis is obtained to wind speed profile.Subsequently, in step 31, thereby the physical parameter of wind speed profile and wind turbine is carried out to the Operational Limits that analysing and processing is determined this wind turbine.In non-limiting example, step 30 and 31 all can be carried out in processing unit 19.
In embodiments of the present invention, system 11 is provided with the Operational Limits that pressure transducer 18 and processing unit 19 are determined wind turbine 10, and this contributes to guarantee that wind turbine safely and steadily runs.In legacy system, owing to there is no real wind field data, processing unit 19 is commonly used to the Operational Limits of wind turbine to simulate.Yet the data that this simulation obtains can accurately not reacted the Operational Limits in actual motion conventionally.In system 11 of the present invention, due to the use of pressure transducer 18, just can accurately obtain the real-time wind-force profile in actual wind field, this is highly beneficial for the Operational Limits that obtains wind turbine accurately.Meanwhile, by the processing of processing unit 19, system 11 of the present invention can be determined or monitor all Operational Limitss of wind turbine 10.
Although describe the present invention in conjunction with the specific embodiments, those skilled in the art will appreciate that and can make many modifications and modification to the present invention.Therefore, recognize, the intention of claims is to cover all such modifications and the modification in true spirit of the present invention and scope.
Claims (19)
1. for a system for definite wind turbine Operational Limits, comprising:
Pressure transducer, it is arranged on wind turbine sensing blast and produces wind pressure signal; And
Processing unit, its reception is also processed described wind pressure signal to obtain wind speed profile, this processing unit further can be to described wind speed profile and the physical parameter that stores in advance described wind turbine within it process, thereby obtain the Operational Limits of described wind turbine.
2. the system as claimed in claim 1, wherein said wind turbine comprises pylon, is arranged on the cabin on described pylon, the rotating wheel hub being connected with described cabin, and the plurality of vanes of joining with described wheel hub, described pressure transducer is arranged at least one in described pylon, wheel hub and plurality of vanes.
3. system as claimed in claim 2, wherein described in each, the middle part of blade is provided with a described pressure transducer.
4. system as claimed in claim 2, the central part of wherein said wheel hub is provided with a described pressure transducer.
5. system as claimed in claim 2, the middle part of wherein said pylon is provided with a described pressure transducer.
6. system as claimed in claim 2, wherein said pressure transducer is arranged on the outer surface of the described described wind turbine towards wind.
7. system as claimed in claim 2, wherein said pressure transducer comprises differential pressure transducer.
8. the system as claimed in claim 1, wherein said wind speed profile comprises air speed data.
9. the system as claimed in claim 1, wherein said processing unit comprises puocessing module, it can receive and process described wind speed profile and described physical parameter to determine the Operational Limits of described wind turbine.
10. system as claimed in claim 9, wherein said puocessing module comprises FEM (finite element) model.
11. systems as claimed in claim 9, wherein said processing unit further comprises can receive and process described wind pressure signal to produce the first module of described wind speed profile and to store the second module of described physical parameter.
12. the system as claimed in claim 1, wherein said Operational Limits comprise the deflection of wind speed, blade, the rotating speed of the moment of flexure of blade, blade, one or more in the asymmtric load of rotor, thrust, driftage, spinner velocity, alternator speed and structural vibration.
13. 1 kinds of methods for definite wind turbine Operational Limits, comprising:
The pressure transducer that utilization is arranged on wind turbine comes sensing blast to produce wind pressure signal;
Described wind pressure signal is processed to obtain wind speed profile; And
Utilize processing unit to process to determine described Operational Limits to the physical parameter of described wind speed profile and predetermined wind turbine.
14. methods as claimed in claim 13, wherein carry out in described processing unit the processing of described wind pressure signal, and described pressure transducer comprises differential pressure transducer.
15. methods as claimed in claim 13, wherein said wind speed profile comprises air speed data.
16. methods as claimed in claim 13, wherein said Operational Limits comprise the deflection of wind speed, blade, the rotating speed of the moment of flexure of blade, blade, one or more in the asymmtric load of rotor, thrust, driftage, spinner velocity, alternator speed and structural vibration.
17. methods as claimed in claim 13, wherein said processing unit comprises puocessing module, and described puocessing module comprises FEM (finite element) model, and it can receive and process described wind speed profile and described physical parameter.
18. methods as claimed in claim 13, described pressure transducer towards and be exposed to and in the wind that impacts described wind turbine, carry out sensing blast.
19. methods as claimed in claim 18, wherein said pressure transducer is arranged on the outer surface of described wind turbine.
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| CN201210370428.6A CN103711642B (en) | 2012-09-28 | 2012-09-28 | For determining the system and method for wind turbine operational factor |
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| CN201210370428.6A CN103711642B (en) | 2012-09-28 | 2012-09-28 | For determining the system and method for wind turbine operational factor |
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Cited By (5)
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| CN107636305A (en) * | 2015-05-19 | 2018-01-26 | 乌本产权有限公司 | Measurement apparatus on wind energy plant |
| CN108139424A (en) * | 2015-08-28 | 2018-06-08 | 东国大学校产学协力团 | wind speed measuring device |
| US10184456B2 (en) | 2014-05-13 | 2019-01-22 | General Electric Company | Wind turbine and blade alignment method thereof |
| CN109312716A (en) * | 2016-04-08 | 2019-02-05 | 维斯塔斯风力系统集团公司 | For controlling wind turbine to manage method and system of the edge to blade vibration |
| CN109715939A (en) * | 2016-09-13 | 2019-05-03 | 福斯4X股份有限公司 | Method and apparatus for determining the load on wind turbine tower |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US10184456B2 (en) | 2014-05-13 | 2019-01-22 | General Electric Company | Wind turbine and blade alignment method thereof |
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| CN103711642B (en) | 2016-08-24 |
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Effective date of registration: 20240104 Address after: Barcelona, Spain Patentee after: Ge renewable energy Spain Ltd. Address before: New York, United States Patentee before: General Electric Co. |