CN111024355B - Wind field simulation device for southern mountainous area - Google Patents
Wind field simulation device for southern mountainous area Download PDFInfo
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- CN111024355B CN111024355B CN202010025355.1A CN202010025355A CN111024355B CN 111024355 B CN111024355 B CN 111024355B CN 202010025355 A CN202010025355 A CN 202010025355A CN 111024355 B CN111024355 B CN 111024355B
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- 230000001276 controlling effect Effects 0.000 claims description 10
- 238000010248 power generation Methods 0.000 claims description 3
- 238000002474 experimental method Methods 0.000 claims description 2
- 238000012360 testing method Methods 0.000 abstract description 5
- 238000011161 development Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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- 230000015572 biosynthetic process Effects 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
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- 238000011160 research Methods 0.000 description 1
- 238000004162 soil erosion Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/06—Measuring arrangements specially adapted for aerodynamic testing
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Abstract
The invention discloses a wind field simulation device in a southern mountainous area, which is used for forming a wind field around wind power equipment to be tested and comprises an air supply assembly arranged around the wind power equipment to be tested and a control system used for controlling the air supply assembly; the air supply assembly comprises at least two groups of air supply outlets, and the air supply outlets of each group are arranged vertically; the control system comprises a wind pressure control module and a wind direction control module which are respectively used for controlling the wind pressure and the wind direction of the air supply outlet. The wind field simulation device in the southern mountainous area has the advantages of simplicity, practicability, complex and changeable simulation effect, capability of providing test conditions for the development of wind power equipment in the southern mountainous area, and the like.
Description
Technical Field
The invention relates to the field of wind power equipment test devices, in particular to a wind field simulation device in southern mountainous areas.
Background
The existing wind power equipment design technology is not mature, and a large amount of experimental research is needed to perfect and correct the design scheme. In recent years, the installed capacity of wind power equipment in mountainous areas in south China is increased rapidly, but the phenomenon of 'water and soil erosion' is also shown. The wind power generation device mainly comprises a wind power generation device, a wind speed sensor and a wind speed sensor. Wind power equipment developed according to wind condition design experience in plain areas is difficult to adapt to southern mountain environments completely, and generally shows the phenomenon that the performance cannot achieve the expected effect in the actual use process.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a southern mountainous area wind field simulation device which is simple and practical, has complex and changeable simulation effect and can provide test conditions for the development of southern mountainous area wind power equipment.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
a wind field simulation device in a southern mountainous area is used for forming a wind field around wind power equipment to be tested and comprises an air supply assembly arranged around the wind power equipment to be tested and a control system used for controlling the air supply assembly; the air supply assembly comprises at least two groups of air supply outlets, and the air supply outlets of each group are arranged vertically; the control system comprises a wind pressure control module and a wind direction control module which are respectively used for controlling the wind pressure and the wind direction of the air supply outlet.
As a further improvement of the above technical solution:
the wind field generator is characterized by further comprising a wind field generation assembly, the wind field generation assembly is communicated with the air supply outlets and provides air for the air supply outlets, the wind pressure control module comprises pressure regulating valves communicated between the wind field generation assembly and each group of air supply outlets, and the wind pressure of each group of air supply outlets is controlled by the independent pressure regulating valves.
The wind field generation assembly comprises a gas storage device for storing wind gas, and the wind pressure control module further comprises a pressure sensor for detecting the pressure of the gas storage device; the wind pressure control module adjusts the ratio of the pressure regulating valves at the air supply openings of each group according to the pressure detected by the pressure sensor and the wind pressure of the target wind condition, and adjusts the pressure change of the pressure regulating valves at the air supply openings of each group according to the wind pressure change of the target wind condition.
The wind pressure control module also comprises a mixing valve which is communicated between the wind field generation assembly and each group of air supply outlets and is connected with the pressure regulating valve in parallel; and the wind pressure control module adjusts the on-off and pressure change of the mixing valves at the air supply ports of each group according to the wind field condition change of the target wind condition.
Each group of air supply outlets are independently connected to the respective rack, and the wind direction of the air supply outlets is adjusted by the wind direction control module through adjusting the rotation of the air supply outlets relative to the rack.
The frame includes the mount and removes the frame, supply-air outlet one end articulates on the mount, and the other end articulates on removing the frame, wind direction control module is including the driving piece that the control removed the frame and removed for the mount removal.
The air supply outlet comprises a plurality of air ducts, and the air ducts are uniformly distributed between the fixed frame and the movable frame.
One end of the air duct is provided with an opening for allowing air to flow out, the other end of the air duct is provided with a conical end with a vertex angle of alpha, and alpha is more than or equal to 45 degrees and less than or equal to 60 degrees.
The air guide cylinders are hinged with the movable frame and the fixed frame through spherical hinges.
The wind direction control module adjusts the target position of the driving piece at each group of air supply opening according to the wind direction of the target wind condition, and adjusts the driving direction of the driving piece at each group of air supply opening according to the wind direction change of the target wind condition.
Compared with the prior art, the invention has the advantages that:
the invention provides a simulation device capable of simulating a changeable wind field in mountainous areas in the south, which is used for simulating a corresponding wind field around wind power equipment to be tested and comprises an air supply assembly arranged around the wind power equipment to be tested and a control system used for controlling the air supply assembly. The wind supply assembly comprises at least two groups of wind supply outlets, and the wind supply outlets are arranged in a mutually perpendicular mode, namely the complex wind field of the wind field in the southern mountainous area is decomposed into a plurality of groups of wind supply outlets arranged in a mutually perpendicular mode to be simulated by adopting a vector decomposition method. Control system includes wind pressure control module and wind direction control module, is used for controlling the wind pressure and the wind direction of supply-air outlet respectively, and each group supply-air outlet is through adjusting wind pressure and wind direction through the coupling again, makes the wind field that forms enclose the wind pressure wind direction change characteristic in the dimension of establishing at the supply-air outlet and can manual intervention, and the test condition is further abundant, and its southern mountain area wind field wind regime of simulation is changeable, and is close to reality more, for the development of wind power equipment adds the helping hand again.
Drawings
Fig. 1 is a schematic structural diagram of a wind field simulation device in a southern mountainous area of the invention.
Fig. 2 and 3 are schematic views of wind pressure adjustment.
Illustration of the drawings: 1. an air supply assembly; 11. an air supply outlet; 12. a frame; 121. a fixed mount; 122. a movable frame; 2. a control system; 21. a pressure regulating valve; 22. a pressure sensor; 23. a mixing valve; 24. a drive member; 3. a wind farm generating assembly; 31. and a gas storage device.
Detailed Description
In order to facilitate an understanding of the invention, the invention will be described more fully and in detail below with reference to the accompanying drawings and preferred embodiments, but the scope of the invention is not limited to the specific embodiments below.
Example (b):
as shown in fig. 1, the southern mountainous area wind farm simulation apparatus of the present embodiment is configured to form a wind farm around a wind power plant to be tested, and includes an air supply assembly 1 disposed around the wind power plant to be tested and a control system 2 configured to control the air supply assembly 1. Air supply subassembly 1 contains at least two sets of supply-air outlets 11, each set of supply-air outlets 11 mutually perpendicular lays, this embodiment adopts the method of vector decomposition to decompose into the multiunit supply-air outlets 11 that mutually perpendicular laid with the complicated wind field of southern mountain area wind field promptly, compare in current wind field analogue means, multiunit supply-air outlets 11 vector synthesis makes the dimensionality that covers more, and is more three-dimensional, and the wind field that forms after the coupling more presses close to the actual conditions of southern mountain area wind field, provides abundanter condition for wind power equipment's experiment.
In this embodiment, the supply-air outlets 11 are arranged in two groups, one group is arranged horizontally to generate horizontal wind speed, and the other group is arranged vertically upwards to generate vertical wind speed. And because the wind direction of each air supply outlet 11 is adjustable, the simulated wind field can be basically similar to the actual three-dimensional wind field, if a more complex wind field needs to be simulated, the simulated wind field can also be set into three to four groups according to circumstances, the position relation among each group of air supply outlets 11 can also be adjusted according to circumstances, and details are not repeated herein.
In this embodiment, the wind field simulation apparatus in the southern mountainous area further includes a wind field generation assembly 3, the wind field generation assembly 3 is communicated with the air supply ports 11 and supplies air to the air supply ports, the wind pressure control module includes pressure regulating valves 21 communicated between the wind field generation assembly 3 and the air supply ports 11 for controlling the output wind pressure of the air supply ports 11, and each group of air supply ports 11 is controlled by an individual pressure regulating valve 21 to control the wind pressure so that the wind pressure regulation between the air supply ports 11 is not interfered with each other.
When simulating the basic wind, the pressure regulating valve 21 is adjusted to maintain the set wind pressure, so that the air supply outlet 11 delivers the wind with stable pressure; when gust is simulated, the pressure regulating valve 21 is adjusted to be switched on and off within a short time, so that the air supply outlet 11 emits pulse type air to simulate gust under natural conditions; when the gradual change wind is simulated, the pressure of the pressure regulating valve 21 is adjusted to gradually change, so as to simulate the gradual change wind in the natural condition. The simulation apparatus of the present embodiment can appropriately adjust the blowing performance of the blowing port 11 according to the required wind conditions.
In this embodiment, the wind field generating assembly 3 includes a gas storage device 31 for storing wind, a motor and an air pump, wherein the motor drives the air pump to operate, and gas is input into the gas storage device 31. The wind pressure control module further comprises a pressure sensor 22 for detecting the pressure of the gas storage means 31, and when the gas storage means reaches a desired pressure, the motor is controlled to stop. The wind pressure control module adjusts the ratio of the pressures of the pressure regulating valves 21 at the groups of the air supply outlets 11 according to the pressure detected by the pressure sensor 22 and the wind pressure of the target wind condition to regulate and control the pressure distribution between the two, so as to ensure the minimum required power output on the premise of forming the target wind condition. In addition, the wind pressure control module adjusts the pressure change of the pressure regulating valve 21 at each group of the air supply outlets 11 according to the wind pressure change of the target wind condition to form a wind field with changed wind conditions.
In this embodiment, the wind pressure control module further includes a mixing valve 23, and the mixing valve 23 is connected between the wind field generating assembly 3 and each set of the air supply outlets 11, and is connected in parallel with the pressure regulating valve 21; the wind pressure control module adjusts the on-off and pressure change of the mixing valve 23 at each group of the air supply outlet 11 according to the wind field condition change of the target wind condition. The single air-vent valve 21 controls the on-off and air pressure change of the air-vent valve through the air pressure control module, only can be used for single basic air, gust or gradual change air, and after the mixing valve 23 is added, the air pressure control module adjusts the two air types, so that the two air types are different, and more real mixed air is formed after mixing, and the actual situation of the southern mountain area is closer to. As shown in fig. 2 and 3, there are diagrams of wind pressure adjustment indications of a mixed wind composed of a basic wind and a gust and a mixed wind composed of a basic wind and a gradual wind, respectively.
In this embodiment, each set of air supply outlets 11 is independently connected to the respective rack 12, and the wind direction control module adjusts the wind direction of the air supply outlets 11 by adjusting the rotation of the air supply outlets 11 relative to the rack 12. The frame 12 includes a fixed frame 121 and a movable frame 122, one end of the air supply outlet 11 is hinged to the fixed frame 121, the other end is hinged to the movable frame 122, and the wind direction control module includes a driving element 24 for controlling the movable frame 122 to move relative to the fixed frame 121. When the driving member 24 starts to drive, the movable frame 122 drives one end of the air outlet 11 to move, and the other end of the air outlet 11 cannot move because of the fixed frame 121, so that the two ends of the air outlet 11 rotate relatively to adjust the change of the wind direction.
In this embodiment, the air outlet 11 includes a plurality of air ducts, and each air duct is uniformly arranged between the fixed frame 121 and the movable frame 122 for generating a more uniform and stable wind field within the coverage area.
In this embodiment, one end of the air duct is an opening for allowing air to flow out, and the other end of the air duct is connected with the wind field generating assembly 3 and is a tapered end with an apex angle of α, α is greater than or equal to 45 ° and less than or equal to 60 °, and the tapered end is beneficial to quickly and stably changing the direction of the air from the connecting end to the direction of the air supply outlet 11.
In this embodiment, each air guide cylinder is hinged to the movable frame 122, and each air guide cylinder is hinged to the fixed frame 121 through a spherical hinge, so that the range of the rotation angle of the spherical hinge is wider and more flexible, and the wind direction simulation device is suitable for simulating changeable wind field and wind direction changes in southern mountainous areas.
In this embodiment, the wind direction control module adjusts the target position of the driving member 24 at each group of the air outlets 11 according to the wind direction of the target wind condition, and also adjusts the driving direction of the driving member 24 at each group of the air outlets 11 according to the wind direction change of the target wind condition, so as to form a wind field with a changed wind direction.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-described embodiments. It should be apparent to those skilled in the art that modifications and variations can be made without departing from the technical spirit of the present invention.
Claims (7)
1. The utility model provides a southern mountain area wind field analogue means for form the wind field around waiting to experiment wind power equipment, its characterized in that: the experimental device comprises an air supply assembly (1) arranged around wind power equipment to be tested and a control system (2) used for controlling the air supply assembly (1); the air supply assembly (1) comprises at least two groups of air supply outlets (11), the air supply outlets (11) are vertically arranged, one group of air supply outlets (11) are horizontally arranged, and the other group of air supply outlets (11) are vertically and upwards arranged; the control system (2) comprises a wind pressure control module and a wind direction control module which are respectively used for controlling the wind pressure and the wind direction of the air supply outlet (11); the wind power generation device is characterized by further comprising a wind field generation assembly (3), wherein the wind field generation assembly (3) is communicated with the air supply outlets (11) and provides wind for the air supply outlets, the wind pressure control module comprises pressure regulating valves (21) communicated between the wind field generation assembly (3) and each group of air supply outlets (11), and the air pressure of each group of air supply outlets (11) is controlled by the independent pressure regulating valves (21); the wind field generation assembly (3) comprises a gas storage device (31) for storing wind gas, and the wind pressure control module further comprises a pressure sensor (22) for detecting the pressure of the gas storage device (31); the wind pressure control module adjusts the ratio of the pressure regulating valve (21) at each group of the air supply outlet (11) according to the pressure detected by the pressure sensor (22) and the wind pressure of the target wind condition, and adjusts the pressure change of the pressure regulating valve (21) at each group of the air supply outlet (11) according to the wind pressure change of the target wind condition; the wind pressure control module also comprises a mixing valve (23), and the mixing valve (23) is communicated between the wind field generation assembly (3) and each group of air supply outlets (11) and is connected with the pressure regulating valve (21) in parallel; and the wind pressure control module adjusts the on-off and pressure change of the mixing valves (23) at the positions of the air supply ports (11) according to the change of the wind field condition of the target wind condition.
2. The southern mountainous wind farm simulation apparatus according to claim 1, wherein: each group of air supply outlets (11) are independently connected to the respective rack (12), and the wind direction of the air supply outlets (11) is adjusted by the wind direction control module through adjusting the rotation of the air supply outlets (11) relative to the racks (12).
3. The southern mountainous wind farm simulation apparatus according to claim 2, wherein: the frame (12) comprises a fixed frame (121) and a movable frame (122), one end of the air supply outlet (11) is hinged to the fixed frame (121), the other end of the air supply outlet is hinged to the movable frame (122), and the wind direction control module comprises a driving piece (24) for controlling the movable frame (122) to move relative to the fixed frame (121).
4. The southern mountainous wind farm simulation apparatus of claim 3, wherein: the air supply outlet (11) comprises a plurality of air ducts, and the air ducts are uniformly distributed between the fixed frame (121) and the movable frame (122).
5. The southern mountainous wind farm simulation apparatus of claim 4, wherein: one end of the air duct is provided with an opening for allowing air to flow out, the other end of the air duct is provided with a conical end with a vertex angle of alpha, and alpha is more than or equal to 45 degrees and less than or equal to 60 degrees.
6. The southern mountainous wind farm simulation apparatus of claim 4, wherein: the air guide cylinders are hinged with the movable frame (122) and the fixed frame (121) through spherical hinges.
7. The southern mountainous wind farm simulation apparatus of claim 3, wherein: the wind direction control module adjusts the target position of the driving piece (24) at each group of the air supply outlet (11) according to the wind direction of the target wind condition, and adjusts the driving direction of the driving piece (24) at each group of the air supply outlet (11) according to the wind direction change of the target wind condition.
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| CN202010025355.1A CN111024355B (en) | 2020-01-10 | 2020-01-10 | Wind field simulation device for southern mountainous area |
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| CN202010025355.1A CN111024355B (en) | 2020-01-10 | 2020-01-10 | Wind field simulation device for southern mountainous area |
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