Floating fan cabin device and method capable of simulating thrust of floating fan model

Abstract

The invention provides a floating fan cabin device capable of simulating the thrust of a floating fan model and a method. The floating fan cabin device comprises a cabin base, a driving device and a control device, a sliding rail is fixed to the upper portion of the cabin base, a cabin frame is installed on the upper portion of the sliding rail, a thrust sensor is installed on the upper portion of the cabin frame, one side of the thrust sensor is connected with the cabin frame, and the other side of the thrust sensor is connected with a vertical baffle on the rear portion of the cabin base. The driving device comprises a brushless motor, the output end of the brushless motor is connected with blades, and the brushless motor is integrally fixed to the front end of the cabin frame. The control device comprises an electronic speed regulator; the electronic speed regulator is fixed to a vertical baffle on the rear portion of the cabin base. According to the device, the generated thrust is transmitted to the cabin base through the sliding rail and the thrust sensor, so that the thrust is further transmitted to the fan tower drum, errors of the generated thrust in the transmission process are reduced, the magnitude of the borne thrust can be monitored by installing the thrust sensor, and the magnitude of the thrust can be controlled through the control device.

Description

Technical Field

[0001] The present invention belongs to the field of marine engineering, and in particular relates to a floating wind turbine cabin device and method capable of simulating the thrust of a floating wind turbine model. Background Art

[0002] Building a clean, low-carbon, safe, and efficient modern energy system has become an urgent task. To this end, vigorously developing clean energy and accelerating clean substitution on the supply side is imperative. Renewable energy sources such as hydropower, wind power, photovoltaic power generation, and biomass power generation are the main sources of clean energy. Wind power, in particular, has experienced rapid growth in my country in recent years and boasts abundant resources. As onshore wind power installed capacity approaches saturation, offshore wind power, with its many advantages, is considered the primary direction for future wind power development and is attracting widespread attention. As the water depth for offshore wind power development continues to increase, the support foundation for wind turbines will gradually shift from fixed to floating.

[0003] A floating wind turbine is a highly complex, bidirectionally coupled system consisting of a floating support platform's hydrodynamic system (including a mooring system) and the turbine's aerodynamic system (including a tower, nacelle, and impeller rotor). Scaled model testing is an effective means of studying the dynamics of floating wind turbines and an important way to verify numerical analysis results. Furthermore, before offshore wind turbines are built, scaled model testing must be conducted to verify or predict their performance. Therefore, conducting model testing of floating wind turbines is of great significance to promoting their development. However, since both Froude and Reynolds similarity are difficult to meet simultaneously, conducting complete floating wind turbine model testing faces significant challenges. Summary of the Invention

[0004] To overcome the problem of inconsistent aerodynamic performance of floating wind turbine models caused by the conflict between Froude and Reynolds similarity in traditional floating wind turbine model testing, this paper proposes a floating wind turbine nacelle device and method that can simulate the thrust of floating wind turbine models. This device uses a brushless motor to rotate carbon fiber blades to provide thrust, and through a nacelle with similar thrust, similar aerodynamic performance is achieved for the floating wind turbine.

[0005] A floating wind turbine nacelle device capable of simulating the thrust of a floating wind turbine model comprises a nacelle base, a drive device and a control device; a slide rail is fixed above the nacelle base, a nacelle frame is mounted above the slide rail, a thrust sensor is mounted above the nacelle frame, one side of the thrust sensor is connected to the nacelle frame, and the other side is connected to a vertical baffle at the rear of the nacelle base; the drive device comprises a brushless motor, an output end of the brushless motor is connected to blades, and the brushless motor is integrally fixed to the front end of the nacelle frame; the control device comprises an electronic speed regulator; and the electronic speed regulator is fixed to the vertical baffle at the rear of the nacelle base.

[0006] Furthermore, the cabin frame and cabin base are made of aluminum alloy.

[0007] Furthermore, the blades are made of carbon fiber material.

[0008] Furthermore, the vertical baffle at the rear of the cabin base is integrally connected to the cabin base.

[0009] Furthermore, a PWM signal receiver is installed above the electronic speed regulator.

[0010] Furthermore, the electronic speed regulator is connected to the brushless motor circuit at the front end of the cabin frame.

[0011] Furthermore, the control device also includes an external power supply, which supplies power to the PWM signal receiver and the electronic speed regulator.

[0012] A floating wind turbine nacelle method capable of simulating the thrust of a floating wind turbine model comprises the following specific steps:

[0013] Step 1: The PWM signal is transmitted through the PWM wireless signal generator. After receiving the signal, the PWM receiver transmits the signal to the electronic speed controller, which controls the rotation of the brushless motor according to the signal.

[0014] Step 2: The brushless motor drives the blades to rotate, which generates aerodynamic thrust, causing the cabin frame to slide along the rails.

[0015] Step 3: As the cabin frame moves rearward, it drives the thrust sensor to squeeze the vertical baffle at the rear of the cabin base, causing the entire device to generate backward thrust. The wind turbine tower is connected to the bottom of the cabin base, driving the wind turbine tower to move forward.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The floating wind turbine nacelle device proposed in the present invention cleverly transmits the generated thrust to the nacelle base through the slide rail and thrust sensor, and then further transmits it to the wind turbine tower, reducing the error in the generated thrust during the transmission process.

[0018] 2. The floating wind turbine cabin device proposed in the present invention adopts an all-aluminum alloy structure, which not only ensures that the strength meets the test requirements, but also makes the cabin device lighter, facilitates the control of the mass and center of the entire floating wind turbine device, and improves the accuracy of the test.

[0019] 3. The floating wind turbine cabin device proposed in the present invention is equipped with a thrust sensor, which can monitor the magnitude of the thrust during the test.

[0020] 4. The present invention can control the thrust generated by the floating wind turbine cabin device on land through a wireless control system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the base, frame and slide rails of the floating wind turbine cabin device of the present invention;

[0022] Figure 2 This is a front view of the brushless motor of the present invention;

[0023] Figure 3 This is a schematic diagram of the side structure of the brushless motor of the present invention;

[0024] Figure 4 is a schematic diagram of a blade of the present invention;

[0025] Figure 5 This is a schematic diagram of the connection method of the control device of the present invention;

[0026] Figure 6 It is a schematic diagram of the overall structure of the floating wind turbine cabin device of the present invention.

[0027] Among them, there are cabin frame-1, slide rail-2, cabin base-3, brushless motor-4, carbon fiber blade-5, external power supply-6, PWM signal receiver-7, electronic speed regulator-8, thrust sensor-9, horizontally placed aluminum alloy plate-1-1, cabin frame concave opening-1-2, cabin frame circular hole-1-3, tail end screw hole-2-1, carbon fiber blade connection-4-1, connector with cabin frame concave opening-4-2, stainless steel gasket-4-3, screw-4-4, screw hole-5-1. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-6 The present invention is further described.

[0029] The present invention provides a floating wind turbine nacelle device capable of simulating the thrust of a floating wind turbine model, comprising a brushless motor 4, a nacelle base 3, blades 5, a slide rail 2, an external power supply 6, a PWM signal receiver 7, an electronic speed regulator 8, a thrust sensor 9, and a nacelle frame 1;

[0030] The bottom of the cabin frame 1 is a horizontally placed aluminum alloy plate 1-1, and a vertically placed aluminum alloy plate is welded to the middle and front of the plate;

[0031] The front upright aluminum alloy plate is provided with a cabin frame concave opening 1-2; the middle upright aluminum alloy plate is provided with a cabin frame circular hole 1-3;

[0032] The blade 5 is connected to the front end of the brushless motor 4 by bolts; when the brushless motor 4 drives the blade 5 to rotate, thrust is generated;

[0033] The cabin frame 1 and the cabin base 3 are connected via a slide rail 2; the slide rail 2 and the cabin base 3 are connected via bolts;

[0034] The brushless motor 4 is integrally connected to the concave opening 1-2 of the cabin frame of the aluminum alloy flat plate placed vertically at the front of the cabin frame 1 by means of bolts 4-4 and stainless steel washers 4-3 in a fixed connection manner;

[0035] A circular hole 1-3 is provided in the middle of the cabin frame 1, and a tail screw hole 2-1 is provided on the rear vertical baffle of the cabin base 3 for connecting the thrust sensor 9;

[0036] The thrust sensor 9 is connected to the nacelle frame 1 and the rear vertical baffle of the nacelle base 3 by bolts;

[0037] The advantage of the above technical solution is that the cabin frame 1 can slide along the slide rail 2, driving the thrust sensor 9 to squeeze the vertical baffle at the rear of the cabin base 3, so that the entire device generates a backward thrust;

[0038] The electronic speed regulator 8 is fixed to the vertical baffle at the rear of the cabin base 3 by bolts; the electronic speed regulator 8 is connected to the brushless motor 4 at the front end of the cabin frame 1;

[0039] Among them, the electronic speed regulator 8 is a high-current electronic device and should maintain an appropriate distance from the thrust sensor 9 to avoid affecting the measurement effect of the thrust sensor 9;

[0040] The PWM signal receiver 7 is installed on the signal receiving line of the electronic speed regulator 8;

[0041] The external power supply 6 supplies power to the PWM signal receiver 7 and the electronic speed regulator 8;

[0042] The PWM signal receiver 6 receives the PWM signal from the PWM signal transmitter and transmits it to the electronic speed regulator 8 to control the speed of the brushless motor 4;

[0043] The advantage of the above technical solution is that the thrust required for the floating wind turbine device can be calibrated before the test begins, and the duty cycle and frequency of the PWM signal corresponding to the required thrust can be determined in advance, so that the PWM signal can be directly transmitted to the PWM signal receiver 6 at the beginning of the test, thereby controlling the thrust generated by the brushless motor 4.

[0044] The floating wind turbine nacelle test device and method disclosed in this embodiment not only meet the design requirements but also incorporate several detailed considerations:

[0045] 1. The main structure of the cabin test device is mostly made of aluminum alloy, which helps to reduce the weight of the cabin and control the center of gravity of the entire model;

[0046] 2. Using wireless control method, the thrust of floating wind turbine cabin device can be adjusted remotely;

[0047] 3. A thrust sensor is installed in the cabin device, which can monitor the thrust received in real time. Combined with wireless control methods, the cabin thrust can be adjusted in real time.

[0048] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A floating wind turbine nacelle device capable of simulating the thrust of a floating wind turbine model, characterized in that: The invention comprises a cabin base (3), a driving device and a control device; a slide rail (2) is fixed above the cabin base (3); a cabin frame (1) is installed above the slide rail (2); a thrust sensor (9) is installed above the cabin frame (1); one side of the thrust sensor (9) is connected to the cabin frame (1), and the other side is connected to the rear vertical baffle of the cabin base (3); the driving device comprises a brushless motor (4); the output end of the brushless motor (4) is connected to the blade (5); the brushless motor (4) is fixed to the front end of the cabin frame (1); the control device comprises an electronic speed regulator (8); the electronic speed regulator (8) is fixed to the rear vertical baffle of the cabin base (3).

2. The floating wind turbine nacelle device capable of simulating the thrust of a floating wind turbine model according to claim 1, characterized in that: The cabin frame (1) and the cabin base (1) are made of aluminum alloy material.

3. The floating wind turbine nacelle device capable of simulating the thrust of a floating wind turbine model according to claim 1, characterized in that: The blades (5) are made of carbon fiber material.

4. The floating wind turbine nacelle device capable of simulating the thrust of a floating wind turbine model according to claim 1, characterized in that: The rear vertical baffle of the cabin base (3) is integrally connected to the cabin base (3).

5. The floating wind turbine nacelle device capable of simulating the thrust of a floating wind turbine model according to claim 1, characterized in that: A PWM signal receiver (7) is installed above the electronic speed regulator (8).

6. The floating wind turbine nacelle device capable of simulating the thrust of a floating wind turbine model according to claim 5, characterized in that: The electronic speed regulator (8) is connected to the brushless motor (4) circuit at the front end of the cabin frame (1).

7. The floating wind turbine nacelle device capable of simulating the thrust of a floating wind turbine model according to claim 6, characterized in that: The control device further comprises an external power supply (6), and the external power supply (6) supplies power to the PWM signal receiver (7) and the electronic speed regulator (8).

8. A floating wind turbine nacelle method capable of simulating the thrust of a floating wind turbine model according to claim 7, characterized in that: The specific steps are as follows: Step 1: The PWM signal is transmitted through the PWM wireless signal generator. After the PWM receiver (7) receives the signal, it transmits the signal to the electronic speed regulator (8). The electronic speed regulator (8) controls the rotation of the brushless motor (4) according to the signal. Step 2: The brushless motor (4) drives the blades (5) to rotate, and the rotation of the blades (5) generates aerodynamic thrust, causing the cabin frame (1) to slide along the slide rail (2); Step 3: When the cabin frame (1) moves toward the rear, it drives the thrust sensor (9) to squeeze the vertical baffle at the rear of the cabin base (3), so that the entire device generates a backward thrust. The wind turbine tower is connected to the bottom of the cabin base (3), driving the wind turbine tower to move forward.

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