CN115324844A - Unmanned ship small-sized wind driven generator performance measuring device - Google Patents

Abstract

The device for measuring the performance of a small wind power generator for an unmanned boat of the present invention relates to the field of marine natural energy vehicles. They are arranged in parallel and are slidably fitted on the bottom rectangular frame of the cuboid frame; and the two sheet body fixing rods are respectively fixed with the two sheet bodies of the unmanned boat; the generator position adjustment device is slidably fitted on the top rectangular frame of the cuboid frame. , and the generator position adjustment device is fixed with a wind generator; the wind generator is used to drive the wind generator; the resistance measurement system includes a resistance rod and a tension gauge; a bottom edge of the cuboid frame is connected to the midpoint of the resistance rod through the tension gauge ; Tensile meter, used to measure the tension between the cuboid frame and the resistance rod; Energy controller, used to obtain the power generated by the wind turbine.

Description

Performance measurement device for unmanned small wind turbine generator

technical field

The invention relates to the field of marine natural energy vehicles, in particular to a device for testing the performance of a wind-driven generator by simulating the working environment of an unmanned small-sized wind-driven generator.

Background technique

The power supply system of natural energy-driven unmanned boats usually includes small wind turbines, solar photovoltaic panels, etc., and uses the abundant solar and wind energy on the sea to provide energy for natural energy-driven unmanned boats. However, the existence of the small-scale wind generator on the unmanned boat can not only supply energy for the battery, but also have the negative effect of increasing the resistance of the unmanned boat due to the additional resistance received by the small-scale wind generator.

The small wind turbines suitable for natural energy unmanned boats usually need the ambient wind speed to reach 12m/s to reach the rated power, but the wind speed on the sea usually does not meet the requirements, so the natural energy unmanned boats can operate small wind turbines at different wind speeds. The relationship between the generated power and the hull resistance has the meaning of exploration. At present, there is no method to quantify the hull resistance when the small wind turbine on the natural energy unmanned boat is working, and there is no measuring device to accurately measure the additional resistance.

In summary, a measurement device that can quantify the power generation of small wind turbines and hull resistance under different wind speeds is of great significance for the overall design of natural energy unmanned boats.

Contents of the invention

The object of the present invention is to provide a performance measurement device for small-sized wind-driven generators of unmanned boats in order to overcome the problem that the existing measuring devices cannot quantify the hull resistance when the wind-driven generators are working.

The performance measurement device of the unmanned small-sized wind power generator of the present invention comprises a cuboid frame, two sheet body fixing rods, a generator position adjustment device, a wind generating device, a resistance measurement system and an energy controller;

Two sheet body fixing rods are arranged in parallel, and are respectively slidably fitted on the bottom rectangular frame of the cuboid frame; and the two sheet body fixing rods are respectively fixed to the two sheet bodies of the unmanned boat;

The generator position adjustment device is slidably fitted on the top rectangular frame of the cuboid frame, and the generator position adjustment device is fixed with a wind generator;

When the cuboid frame is set on the water surface of the circulating pool, the centerlines of the two sheets, the symmetry line of the wind turbine and the centerline of the circulating pool are all located in the same vertical plane;

A wind generating device for driving a wind generator;

The resistance measurement system includes resistance rods and tension gauges;

A bottom edge of the cuboid frame is connected to the midpoint of the resistance rod through the tension gauge;

Tension gauge for measuring the tension between the cuboid frame and the resistance bar;

The energy controller is used to obtain the power generated by the wind generator.

The beneficial effects of the present invention are:

The purpose of the present invention is to provide a real-time measurement of the performance of small wind power generators for natural energy unmanned boats in a circulating pool to simulate the sea-air interface and unmanned boats. In the working condition, you can adjust the distance between the blades, the space position of the small wind turbine, and the environment of different wind speeds, measure the hull resistance and the power generation of the small wind turbine at different wind speeds in real time, and obtain the power generation and the power of the small wind turbine. The relationship between hull resistance can provide experimental data support for the design of natural energy unmanned boats, provide reference information for the design of natural energy unmanned boats, and the use cost is low.

Description of drawings

Fig. 1 is the structure schematic diagram that the unmanned boat small-sized wind-driven generator performance measuring device of the present invention does not have beam wind casing;

Fig. 2 is the structure schematic diagram of the other direction of the unmanned boat small-sized wind-driven generator performance measurement device without beam wind casing of the present invention;

Fig. 3 is the structure schematic diagram of the framework body that does not have the generator lifting rod in the unmanned boat small-sized wind power generator performance measuring device of the present invention;

Fig. 4 is the structural representation of the performance measuring device of the unmanned boat small-scale wind-driven generator of the present invention;

Fig. 5 is the structural representation of another direction of the performance measurement device of the unmanned boat small-scale wind-driven generator of the present invention;

Fig. 6 is a schematic diagram of the cooperation structure between the resistance measurement system and the frame body in the performance measurement device of the unmanned small-scale wind power generator of the present invention;

Fig. 7 is a schematic diagram of the cooperative structure of the wind power generator and the energy controller in the performance measuring device of the small wind power generator of the unmanned boat of the present invention;

Fig. 8 is a structural schematic diagram of the wind generating device 2 in the performance measuring device of the small-scale wind power generator of the unmanned boat of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

Specific embodiment one, the unmanned boat small wind power generator performance measurement device of the present embodiment, comprises cuboid frame 1-1, two sheet body fixing rods 1-2, generator position adjustment device, wind generating device 2, resistance measurement System and Energy Controller 3;

Two sheet body fixing rods 1-2 are arranged in parallel, and are respectively slidably fitted on the bottom rectangular frame of the cuboid frame 1-1; and the two sheet body fixing rods 1-2 are respectively fixed to the two sheet bodies of the unmanned boat;

The generator position adjustment device is slidably fitted on the top rectangular frame of the cuboid frame 1-1, and the generator position adjustment device is fixed with a wind turbine 4;

When the cuboid frame 1-1 is set on the water surface of the circulating pool, the centerlines of the two sheets, the symmetry line of the wind-driven generator 4 and the centerline of the circulating pool are all located in the same vertical plane;

The wind generating device 2 is used to drive the wind generator 4;

The resistance measuring system comprises a resistance rod 6-1 and a tension gauge 6-2;

A base of the cuboid frame 1-1 is connected to the midpoint of the resistance rod 6-1 through the tension gauge 6-2;

Tensile gauge 6-2, used to measure the tension between the cuboid frame 1-1 and the resistance bar 6-1;

The energy controller 3 is used to obtain the generated power of the wind generator 4 .

Specifically, the present invention is applied in a circulating water pool to measure the power generated by a small wind power generator and the resistance of a ship. According to the knowledge of the ship principle, the open water test in the circulating pool is a common way to measure the resistance. At the same time, the combination of the circulating pool and the wind generating device 2 to create the air-sea interface can simulate the marine environment where the natural energy unmanned boat is located. The pool site is sufficient The large-area platform can be used to arrange shore-based equipment such as controllers (which can be used as wind speed controllers, energy controllers, and working machines) to facilitate data collection and analysis.

The invention includes a frame body composed of a sheet body and a frame body, a wind generating device 2 and a resistance measuring system, and the whole device is arranged on a circulating water pool for use.

Among them, the frame body is spliced by fourteen profiles, and a generator position adjustment device and a sheet spacing adjustment screw 1-4 are arranged inside, twelve of which are spliced into a rectangular cuboid frame 1-1, and the profile and profile The connection is fixed with corner codes, and the bottom rectangular frame has two sheet body fixing rods 1-2 respectively fixed with the two sheet bodies by stainless steel rolling strips, and the length of the sheet body spacing can be adjusted between the two sheet body fixing rods 1-2 The adjustment screw rods 1-4 are connected, and the two sheet body fixing rods 1-2 are connected with the bottom rectangular frame composed of four profiles through slip rings provided at both ends.

The resistance measurement system is a part of the measurement system. It is a structure composed of two pressure blocks, a resistance rod 6-1 that can span the circulating pool, and a tension gauge 6-2. The axial midpoint of the resistance rod 6-1 is There is a circular hole at the bottom of the rectangular frame, and the axial midpoint of the profile parallel to and closest to the resistance measuring system with the circular hole (a bottom edge close to and parallel to the resistance rod 6-1) among the four profiles of the rectangular frame at the bottom A circular ferrule is welded at the place, and a tension gauge 6-2 is arranged between the circular ferrule and the circular hole.

When the experimental device is working, the thrust of the frame body and the sheet body as a whole is measured by the tension meter 6-2, and according to Newton's third law, the hull resistance generated when the small wind turbine 4 is working at different wind speeds is obtained.

The measurement system also includes an energy measurement system. The energy measurement system includes a small wind generator 4, an energy controller 3 and a rechargeable storage battery 8 that is not fully charged. 4 power generation.

The generator position adjusting device can adjust the position of the small wind-driven generator 4 on a plane parallel to the water surface.

The best embodiment, this embodiment is a further description of the first embodiment, in this embodiment, it also includes the sheet spacing adjustment screw 1-4;

Both ends of the sheet spacing adjusting screw rod 1-4 are respectively connected with the shafts of the two sheet fixing rods 1-2.

The best embodiment, this embodiment is a further description of Embodiment 1. In this embodiment, the generator position adjustment device includes two adjustment rods 1-3-1, connecting slider 1-3-2 and generator hoisting Rod 1-3-3;

The two ends of one adjustment rod 1-3-1 are slidingly matched with the two parallel sides of the top rectangular frame respectively, and the two ends of the other adjustment rod 1-3-1 are respectively slid with the other two parallel sides of the top rectangular frame Cooperate;

The connecting slide block 1-3-2 includes two mutually perpendicular and disconnected slideways, and the two adjusting rods 1-3-1 run through the two slideways respectively;

One end of the generator lifting rod 1-3-3 is connected with the connecting slider 1-3-2, and the other end is used to connect with the wind generator 4, and enables the wind generator 4 to be suspended inside the cuboid frame 1-1 .

Specifically, a generator position adjustment device is arranged on the top rectangular frame, that is, two adjustment rods 1-3-1 arranged in a cross shape, and the intersection of the two adjustment rods 1-3-1 is connected to the slider 1-3-2 Connect, connect the generator lifting rod 1-3-3 under the connecting slider 1-3-2 (it can be a telescopic three-section rod, the bottom of the generator lifting rod 1-3-3 is connected with the small wind turbine 4, two adjustment rods The two ends of 1-3-1 are respectively equipped with slip rings to connect with the top rectangular frame, and the position of the small wind-driven generator 4 on a plane parallel to the water surface can be adjusted by moving the connecting slider 1-3-2 of the generator position adjustment device.

The best embodiment, this embodiment is a further description of the first embodiment, in this embodiment, the motor lifting rod 1-3-3 is a telescopic rod.

Specifically, the position of the small wind power generator 4 in the vertical direction to the water surface can be adjusted by changing the degree of expansion and contraction of the generator suspension rod 1-3-3.

The best embodiment, this embodiment is a further description of Embodiment 1. In this embodiment, the wind generating device 2 includes a wind generating device bracket 2-1, a plurality of wind speed sensors 2-2, and a plurality of centrifugal fans 2-3 , multiple frequency converters 2-4 and wind speed controllers; and the number of frequency converters 2-4 and the number of wind speed sensors 2-2 are equal to the number of centrifugal fans 2-3;

All centrifugal fans 2-3 are fixed on the wind-making device support 2-1;

Wind speed sensors 2-2 are fixed one by one at the air outlet of each centrifugal fan 2-3, used to measure the actual wind speed of the corresponding centrifugal fan 2-3, and send it to the wind speed controller;

The frequency converter 2-4 is connected to each centrifugal fan 2-3 in one-to-one correspondence, and is used to adjust the input voltage frequency of the corresponding centrifugal fan 2-3;

The wind speed controller is used to randomly select an actual wind speed among the actual wind speeds of different centrifugal fans 2-3 as a consistent wind speed, and compare each actual wind speed with the consistent wind speed to obtain a corresponding first wind speed difference, according to the wind speed and the input voltage Frequency relationship, generating a first voltage frequency adjustment signal corresponding to each first wind speed difference, and sending it to the corresponding frequency converter 2-4;

The frequency converter 2-4 is used to control the input voltage frequency of the corresponding centrifugal fan 2-3 according to the received first voltage frequency adjustment signal, and change the speed of the corresponding centrifugal fan 2-3; thereby making the wind speeds of all the centrifugal fans 2-3 consistent wind speed.

Specifically, the wind generating device 2 includes a wind generating device bracket 2-1, four centrifugal fans 2-3, four frequency converters 2-4 and four wind speed sensors 2-2, arranged on the wind generating device bracket 2-1 Four centrifugal fans 2-3, considering that a single centrifugal fan 2-3 cannot produce wind with a higher wind speed, use four centrifugal fans 2-3 to be arranged in a square shape, considering that the wind generating device 2 has a constant input voltage In some cases, it is impossible to change the size of the wind generation. A frequency converter 2-4 is installed between the power supply and each centrifugal fan 2-3. By changing the frequency of the input voltage, the size of the wind generation of the centrifugal fan 2-3 can be changed, and the centrifugal fan 2-3 can be adjusted. Fan 2-3 air outlet wind speed.

Considering that the four centrifugal fans 2-3 have different sizes of wind generation, a wind speed sensor 2-2 is respectively arranged at the air outlet of each centrifugal fan 2-3. The wind speed sensor 2-2 can monitor the wind speed of each air outlet in real time, and adjust the wind-making size of the four centrifugal fans 2-3 to be consistent through automatic control, so that the wind speed of the air outlets of the four centrifugal fans 2-3 is the same to generate uniform wind. , so that the wind that the small-scale wind generator 4 is subjected to is uniform. Wherein, the wind speed sensor 2-2 and the frequency converter 2-4 are connected with the wind speed controller (shore-based system).

And before the wind generating device 2 is arranged, the vertical position of the small wind generator 4 needs to be determined to ensure that the geometric centers of the four centrifugal fans 2-3 are at the same height as the geometric centers of the four blades of the small wind generator.

The best embodiment, this embodiment is a further description of Embodiment 1. In this embodiment, two anemometers 7 are also included;

Two anemometers 7 are respectively installed at both ends of the adjustment rod 1-3-1 parallel to the wind direction, for measuring the front wind speed and the rear wind speed of the wind turbine 4, and sending them to the wind speed controller;

The wind speed controller is also used to obtain the average wind speed through the front wind speed and the rear wind speed, and compare the average wind speed with the set wind speed to obtain the second wind speed difference, and generate a wind speed corresponding to the second wind speed difference according to the relationship between the wind speed and the input voltage frequency. The second voltage frequency adjustment signal is sent to all frequency converters 2-4;

The frequency converter 2-4 is also used to control the input voltage frequency corresponding to the centrifugal fan 2-3 according to the second voltage frequency adjustment signal, so that the average wind speed reaches the set wind speed.

Specifically, the measurement system also includes a wind speed measurement system. The purpose of the wind speed measurement system is to measure the wind speed at the position of the small wind generator 4, but the direct arrangement of the anemometer 7 in front of the small wind generator 4 will affect the wind speed of the small wind generator 4. Therefore, the anemometer support is arranged on the position adjustment device of the generator, and the anemometer 7 is respectively arranged on the two anemometer supports, considering the influence of the different distance from the wind generating device 2 on the wind speed A more reasonable wind speed value at the position of the small wind turbine 4 is obtained by taking the arithmetic mean value of the readings of the two anemometers 7 arranged front and back. At present, the measurement method of wind speed has been relatively mature, and various existing anemometers can measure wind speed.

Through the slip rings at both ends of the adjustment bar 1-3-1 along the wind direction on the top rectangular frame 2, an anemometer bracket is respectively installed. Two anemometer brackets fix two anemometers 7 to measure the wind speeds before and after the small wind-driven generator 4 at the same height.

A more reasonable average wind speed at the small wind turbine 4 is obtained by averaging the readings of the two anemometers 7 . The present invention controls the size of the wind generated by the wind generating device 2 through the wind speed automatic adjustment system composed of the wind speed sensor 2-2, the anemometer 7, the frequency converter 2-4 and the shore base, and inputs the expected wind speed at the shore base, and adjusts the wind generating device through the controller 2 The frequency of the input voltage, and quickly adjust the wind speed at the position of the small wind turbine 4 until the average value of the two anemometers 7 on the top rectangular frame 2 reaches the desired wind speed (set wind speed).

The best embodiment, this embodiment is a further description of Embodiment 1. In this embodiment, it also includes a wind beam casing 5, and the wind beam casing 5 is a cuboid shell with openings at both ends and at the bottom;

The wind beam housing 5 is covered outside the frame body and the wind generating device 2 , and the wind generating device 2 is located at one end opening of the wind beam housing 5 .

Specifically, the present invention also includes a wind beam housing 5, which is a cuboid hollow shell with two ends and an opening at the bottom. The present invention creates an experimental environment for simulating a wind tunnel by using the wind-generating device 2 and the wind beam shell 5 .

The wind beam shell 5 is a cuboid hollow shell with an inlet, an outlet, and an open bottom. The wind beam shell 5 is arranged longitudinally on the circulating pool. In the top view, the rectangular long side of the top of the wind beam shell 5 is parallel to the center line of the circulating pool and the wind beam shell 5 The centerline of the top rectangle parallel to the long side is on the same vertical plane as the centerline of the circulating pool.

The function of the wind beam shell 5 is to cooperate with the wind generating device 2 to manufacture a simple wind tunnel. Since the wind beam shell 5 is a cuboid structure, the rectangle of any cross-section inside is exactly the same in shape and area, and the inside is regarded as a flow tube. According to the ideal flow management theory (V ₁ S ₁ =V ₂ S ₂ , it can be seen that ideally, the wind speed at any position inside the wind beam shell 5 is the same, so that the wind in the environment where the small wind power generator 4 is located is more uniform. The device only It can measure the tip speed ratio of the wind turbine to achieve the best power at a certain wind speed. It is not functional, and the inside of the device is assumed to be an ideal flow tube, and the wind speed at the air outlet is equal to the wind speed of the wind turbine working environment. There is no Consider the momentum loss caused by equipment precision and other issues.

The best embodiment, this embodiment is a further description of Embodiment 1. In this embodiment, an energy controller 3 is also included

The energy controller 3 is also used to obtain the rotational speed of the wind power generator 4 .

Specifically, when the experimental device is working, the energy controller 3 can directly read the fan blade speed of the small wind power generator 4 .

When the device of the present invention is in use, the whole device spans over the circulating pool, and the geometric centers of the four centrifugal fans 2-3 on the wind-making device 2 are on the same vertical plane as the center line of the circulating pool; The circular hole of the block-fixed resistance measurement system is on the same vertical plane as the center line of the circulating pool; after determining the distance between the sheets, adjust the sheet between the two sheet fixing rods 1-2 connected to the sheet through stainless steel strips. Body spacing adjustment screw 1-4 makes the space between the pieces meet the expectation, and the pieces are arranged symmetrically along the center line of the frame; the center line of the frame and the center line of the circulating pool are arranged on the same vertical plane; through the cross adjustment rod 1- 3-1 The connecting slider at the intersection 1-3-2, the slip ring at both ends of the profile and the generator lifting rod 1-3-3 Adjust the spatial position of the small wind turbine 4, and ensure that the center line of the small wind turbine 4 is in line with the circulation The center line of the pool is in the same vertical plane, and the geometric center of the fan blade surface of the small wind power generator 4 is at the same height as the geometric centers of the four centrifugal fans 2-3; Install the anemometer 7; install the tension gauge 6-2 between the circular hole of the resistance measuring system fixed by pressing blocks on both sides of the pool and the circular ferrule of the bottom rectangular frame, and ensure the tension gauge 6-2 index in the initial state It is zero; the wind speed sensor 2-2 at the air outlet of the four centrifugal fans 2-3 of the wind-making device 2, the frequency converter 2-4 connected with the centrifugal fan 2-3, the anemometer 7 at the frame body place and the wind speed controller Connect; connect the frequency converter 2-4 with the power supply; connect the three-core cable of the small wind turbine 4 with the energy controller 3, and connect the energy controller with the rechargeable battery 8 that is not fully charged; Cover the whole device, turn on the wind generating device 2, you can measure the power generation, fan blade speed and hull resistance of the small wind generator 4 under the current wind speed, and you can control the wind speed by adjusting the frequency converter 2-4, and change the wind speed to continue The measurement can measure the power generation, fan blade speed and hull resistance of the small wind turbine 4 at different wind speeds.

Concrete method of use of the present invention:

1. Fix the resistance measurement system across the circulating pool at a suitable position in the circulating pool. It is determined through experiments that when the distance between the small wind generator 4 and the wind generating device 2 reaches 4 meters, the wind at the small wind generator 4 is relatively uniform and The wind speed attenuation is small, so it is necessary to reserve a suitable space for the wind generating device 2 at a distance of 4 meters from the fixed position of the resistance measurement system across the circulating pool, and a suitable space for the frame and sheet in the opposite direction.

2. Integrate two sheets, small wind power generator 4, anemometer 7 and frame body, determine the desired sheet spacing according to needs, and adjust the sheet spacing adjustment screw 1 between the sheet and the sheet fixed by stainless steel rolling strip -4 Make the space between the plates reach the desired space between the plates, arrange the frame body and the plates in the circulating pool as a whole, and connect the sliders 1-3 through the slip rings at both ends of the profiles connected with the plates and the center of the generator position adjustment device -2 and four slip rings adjust the position of the sheet body and the horizontal position of the small wind turbine 4, so that the centerlines of the two sheets, the symmetry line of the small wind turbine 4, the centerlines of the two anemometers 7 and the centerline of the circulating pool are at the same inside the vertical plane.

3. Arrange the wind generating device 2 at a distance of 4 meters from the small wind generator, the direction of the centrifugal fan 2-3 is facing the small wind generator 4, and the geometric centers of the four centrifugal fans 2-3 are at the center line of the circulating pool. in the same vertical plane.

4. Adjust the vertical position of the small wind power generator 4 through the generator lifting rod 1-3-3 of the generator position adjustment device, so that the geometric center of the blade surface of the small wind power generator 4 and the four centrifugal fans of the wind generating device 2 The geometric centers of 2-3 are at the same height.

5. Integrate the shore-based system, connect the centrifugal fan 2-3 to the frequency converter 2-4, connect the frequency converter 2-4 to the power supply, and connect the four wind speeds at the air outlets of the four centrifugal fans 2-3 of the wind generating device 2 The sensor 2-2, the two anemometers 7 at the top rectangular frame, the frequency converter 2-4 are connected to the controller, the rechargeable battery 8 that is not fully charged is connected to the energy controller, and the small wind turbine 4 is connected to the energy controller Device 3 is connected. When arranging the energy measurement system, it is necessary to first connect the energy controller to the rechargeable battery 8 that is not fully charged, and then connect the energy controller to the small wind generator 4 to avoid damage to the energy controller.

6. Arrange the tension meter 6-2 between the resistance measuring system across the circulating pool and the frame body, and make the reading of the tension meter 6-2 be exactly zero at the initial position.

7. Arrange the wind beam shell 5 to cover the wind generator 2 and the frame body, ensuring that the center line parallel to the top of the wind beam shell 5 and the long side is in the same vertical plane as the center line of the circulating pool.

8. Turn on the power supply, and measure the power generation and hull resistance of the small wind-driven generator 4 of the natural energy unmanned boat under different wind speeds according to the experimental requirements.

The present invention is used for real-time measurement of the performance of the small-scale wind-driven generator 4 of the natural energy unmanned boat in a circulating pool, and can simulate the air-sea interface and the working conditions of the unmanned boat, and obtain the fans of the small-sized wind-driven generator 4 under different wind speeds through real-time measurement. The blade speed, power generation and hull resistance provide reference information for the design of natural energy unmanned boats, and the use cost is low.

The object of the present invention is to provide a natural energy unmanned boat that can simulate the marine environment where the natural energy unmanned boat is located, which can adjust the space between the sheets, the space position of the small wind turbine 4, and the wind speed environment, and measure the performance of the natural energy of the small wind turbine 4 in real time. The performance measuring device of the small wind-driven generator 4 of the unmanned boat, the specific performance includes the power generation of the small wind-driven generator 4, the rotational speed of the fan blades and the resistance of the hull.

Compared with the existing technology, the wind tunnel measurement method commonly used to measure the performance of fans at present can only be applied to the measurement of single-phase flow environment with only air, and there are very few large-scale wind tunnels that support ship model experiments, and the use cost is extremely high problem, and it is difficult to simulate the air-sea interface at a specific flow rate. Although the method of using the pool test can reduce the cost, as the distance between the wind generating device and the ship model increases, the wind will become unstable and the wind speed attenuation is serious, so it is difficult to simulate sea conditions with high wind speed. The present invention utilizes the characteristics of lower cost of use of the circulating water pool, easy control of the flow rate, and easy layout of experimental equipment, and can generate stable wind through the cooperation of the wind generating device 2 and the wind beam shell 5, which is more advantageous than the prior art.

1. The present invention utilizes the principle of automatic control, and only needs to control the desired wind speed at the shore base to change the frequency of the frequency converter, adjust the wind speed at the air outlet of the centrifugal fan, and then change the wind speed at the location of the small wind turbine and ensure uniform wind;

2. The present invention creates a simulated wind tunnel experiment environment through the wind-generating device and the wind beam shell, so that the wind at the location of the small wind-driven generator is uniform;

3. The present invention adjusts the screw rod and the position adjustment device of the generator through the space between the two plates, and can change the space between the plates and the space position of the small wind power generator as required, and is suitable for different natural energy unmanned boats;

4. The present invention utilizes the characteristics of the circulating pool, and the experimental device occupies a small space to measure the performance of the small wind power generator 4 in the air-water dual-medium environment. Compared with the land experiment, it is closer to the actual experimental environment.

Although the invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely illustrative of the principles and applications of the invention. It is therefore to be understood that numerous modifications may be made to the exemplary embodiments and that other arrangements may be devised without departing from the spirit and scope of the invention as defined by the appended claims. It shall be understood that different dependent claims and features herein may be combined in a different way than that described in the original claims. It will also be appreciated that features described in connection with individual embodiments can be used on other embodiments.

Claims (8)

1. The performance measurement device for small-scale wind-driven generators of unmanned boats, which is characterized in that it includes a rectangular parallelepiped frame (1-1), two sheet body fixing rods (1-2), a generator position adjustment device, and a wind-generating device (2) , resistance measurement system and energy controller (3); The two sheet body fixing rods (1-2) are arranged in parallel, and are respectively slidably fitted on the bottom rectangular frame of the cuboid frame (1-1); and the two sheet body fixing rods (1-2) are respectively connected with The two pieces of the unmanned boat are fixed; The generator position adjustment device is slidably fitted on the top rectangular frame of the cuboid frame (1-1), and the generator position adjustment device is fixed with a wind power generator (4); When the cuboid frame (1-1) is arranged on the water surface of the circulating pool, the centerlines of the two sheets, the symmetry line of the wind-driven generator (4) and the centerline of the circulating pool are all located in the same vertical plane; The wind generating device (2) is used to drive a wind generator (4); The resistance measuring system comprises a resistance bar (6-1) and a tension meter (6-2); A bottom edge of the cuboid frame (1-1) is connected to the midpoint of the resistance bar (6-1) through the tension gauge (6-2); The tension meter (6-2) is used to measure the tension between the cuboid frame (1-1) and the resistance bar (6-1); The energy controller (3) is used to obtain the generated power of the wind generator (4). 2. The small-sized wind-driven generator performance measuring device of unmanned boat according to claim 1, is characterized in that, also comprises sheet spacing adjustment screw rod (1-4); Both ends of the sheet spacing adjusting screw (1-4) are respectively connected to the shafts of the two sheet fixing rods (1-2). 3. The small-sized wind-driven generator performance measurement device for unmanned boat according to claim 1 or 2, wherein the generator position adjustment device includes two adjustment rods (1-3-1), a connecting slide block (1-3-1) 3-2) and generator lifting rod (1-3-3); The two ends of one adjusting rod (1-3-1) are slidingly matched with the two parallel sides of the top rectangular frame respectively, and the two ends of the other adjusting rod (1-3-1) are respectively connected with the other two sides of the top rectangular frame. Slip fit with parallel sides; The connecting slider (1-3-2) includes two mutually perpendicular and disconnected slideways, and two adjusting rods (1-3-1) run through the two slideways respectively; One end of the generator lifting rod (1-3-3) is connected to the connecting slider (1-3-2), and the other end is used to connect with the wind generator (4), so that the wind generator (4) ) can be suspended inside the cuboid frame (1-1). 4. The performance measurement device for small-scale wind-driven generators of unmanned boats according to claim 3, characterized in that, the generator lifting rod (1-3-3) is a telescopic rod. 5. The small-sized wind-driven generator performance measuring device of unmanned boat according to claim 1, is characterized in that, wind-generating device (2) comprises wind-generating device support (2-1), a plurality of wind speed sensors (2-2) , multiple centrifugal fans (2-3), multiple frequency converters (2-4) and wind speed controllers; 2-3) are equal in quantity; All the centrifugal fans (2-3) are fixed on the wind generating device support (2-1); The wind speed sensors (2-2) are fixed one by one at the air outlet of each centrifugal fan (2-3), used to measure the actual wind speed of the corresponding centrifugal fan (2-3), and send it to the wind speed controller; The frequency converters (2-4) are connected to each centrifugal fan (2-3) in one-to-one correspondence, and are used to adjust the input voltage frequency of the corresponding centrifugal fan (2-3); The wind speed controller is used to randomly select an actual wind speed as a uniform wind speed among the actual wind speeds of different centrifugal fans (2-3), and compare each actual wind speed with the uniform wind speed to obtain a corresponding first wind speed difference, according to The relationship between wind speed and input voltage frequency, generating a first voltage frequency adjustment signal corresponding to each first wind speed difference, and sending it to a corresponding frequency converter (2-4); The frequency converter (2-4) is used to control the input voltage frequency of the corresponding centrifugal fan (2-3) according to the received first voltage frequency adjustment signal, and change the speed of the corresponding centrifugal fan (2-3); thereby making all the centrifugal fans The wind speed of blower fan (2-3) is consistent wind speed. 6. The performance measuring device for small-sized wind-driven generator of unmanned boat according to claim 5, is characterized in that, also comprises two anemometers (7); The two anemometers (7) are respectively installed at both ends of the adjustment rod (1-3-1) parallel to the wind direction, for measuring the front wind speed and the rear wind speed of the wind generator (4), and sending them to the wind speed controller ; The wind speed controller is also used to obtain the average wind speed through the front wind speed and the rear wind speed, and compare the average wind speed with the set wind speed to obtain a second wind speed difference, and generate a second wind speed difference according to the relationship between the wind speed and the input voltage frequency. The second voltage frequency adjustment signal corresponding to the value is sent to all frequency converters (2-4); The frequency converter (2-4) is also used to control the input voltage frequency of the corresponding centrifugal fan (2-3) according to the second voltage frequency adjustment signal, so that the average wind speed reaches the set wind speed. 7. according to claim 5 or 6 described unmanned boat small-sized wind-driven generator performance measuring devices, it is characterized in that, also comprise beam wind shell (5), and described beam wind shell (5) is both ends and bottom open cuboid shell; The wind beam housing (5) is covered outside the frame body (1) and the wind generating device (2), and the wind generating device (2) is located at one end opening of the wind beam housing (5). 8. The performance measurement device for small-sized wind-driven generator of unmanned boat according to claim 1, characterized in that, it also includes an energy controller (3) The energy controller (3) is also used to obtain the rotational speed of the wind power generator (4).

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