Wave energy power generation device performance testing device

Abstract

The utility model discloses a performance testing device for a wave power generation device. The performance testing device comprises a water tank, a motor, a wave making plate, a wave height meter, a voltage and current acquisition device and a PC (Personal Computer) workstation, the wave making plate is mounted at the front end of the water tank, and the motor drives the wave making plate to make waves; a working area used for installing a wave energy power generation device is arranged in the middle of the water tank, a sliding rail is arranged on the inner wall of one side of the water tank in the front-back direction of the water tank, the front end of the sliding rail extends to the front of the working area, and the rear end of the sliding rail extends to the rear of the working area. The wave height meter is installed on the sliding rail and can move back and forth along the sliding rail. The voltage and current acquisition device is connected with the wave power generation device for acquiring voltage and current signals; and the motor, the wave height meter and the voltage and current acquisition device are respectively in signal connection with the PC workstation. According to the utility model, the dynamic condition of the offshore wave energy power generation device in waves can be simulated in a laboratory, and the power generation performance of the wave energy power generation device can be accurately evaluated by measuring the wave parameters before and after the wave energy power generation device.

Description

Technical Field

[0001] The utility model relates to the technical field of wave energy power generation, in particular to a wave energy power generation device performance testing device. Background Art

[0002] Wave energy has the characteristics of low pollution, strong renewability, and high energy density, and has become one of the most concerned new energy sources. Traditional wave energy capture devices rely on electromagnetic generators (EMG) to generate electricity, and the new friction nanogenerator (TENG) is also suitable for wave power generation, but the advantageous wave conditions for the two are different. When the laboratory studies the power generation performance of wave energy power generation devices, it is generally through controlling variables such as the amplitude, frequency, and direction of the waves. Most of the existing test devices rely on the operating frequency of the wave machine to estimate the wave conditions, but cannot obtain the accurate wave energy size, and thus cannot accurately evaluate the power generation performance of the wave energy power generation device. Traditional wave energy test devices usually use the output power of the wave machine, that is, the wave motor, as the wave energy input to the wave energy power generation device. In fact, the wave energy power generation device can only collect part of the energy, so it will be low when calculating the energy conversion efficiency. Utility Model Content

[0003] The main purpose of the utility model is to provide a performance testing device for a wave energy power generation device, which can simulate the dynamic situation of an offshore wave energy power generation device in waves in a laboratory, and measure the wave parameters before and after the wave energy power generation device so as to achieve an accurate evaluation of the power generation performance of the wave energy power generation device.

[0004] The technical solution adopted by the utility model is:

[0005] A performance test device for a wave energy power generation device comprises a water tank, a motor and a wave-making board, wherein the wave-making board is installed at the front end of the water tank, and the motor is arranged outside the water tank and connected to the wave-making board to drive the wave-making board to generate waves; the device also comprises a wave height meter, a voltage and current acquisition device and a PC workstation; a working area for installing a wave energy power generation device is provided in the middle of the water tank, a slide rail is provided on the inner wall of one side of the water tank along the front and rear direction of the water tank, the front end of the slide rail extends to the front of the working area, and the rear end of the slide rail extends to the rear of the working area; the wave height meter is installed on the slide rail and can move forward and backward along the slide rail; the voltage and current acquisition device is connected to the wave energy power generation device to collect voltage and current signals; the motor, the wave height meter and the voltage and current acquisition device are respectively connected to the PC workstation signal.

[0006] The above scheme also includes a position adjustment support, which includes a vertical pole, a rotating seat and a retractable connecting rod. The lower end of the vertical pole is fixedly installed on the bottom surface of the water tank, and the rotating seat is rotatably installed on the upper end of the vertical pole. One end of the retractable connecting rod is connected to the rotating seat and the other end is connected to the wave height meter.

[0007] In the above solution, a sliding block is installed on the sliding rail, the wave height meter is installed on the sliding block, and the other end of the telescopic connecting rod is connected to the sliding block.

[0008] In the above solution, the slide rail is a slide groove opened on the inner wall of one side of the water tank.

[0009] The above scheme also includes a wave-breaking plate arranged at the rear end of the water tank, and a sufficiently long distance is reserved between the wave-breaking plate and the rear end of the slide rail to reduce the influence of reflected waves on the measurement data of the wave height meter.

[0010] In the above solution, the wave-breaking plate is placed at an angle of 30° to the horizontal position.

[0011] In the above solution, the voltage and current acquisition device is installed outside the water tank.

[0012] In the above solution, the motor is a programmable linear motor.

[0013] The beneficial effects of the utility model are:

[0014] The utility model arranges a slide rail on the inner wall of the water tank, and the slide rail covers the installation area of ​​the wave energy power generation device, and the wave height meter is slidably installed on the slide rail so that it can successively measure the wave data at the front end and the rear end of the wave energy power generation device, so as to calculate the wave energy flux through the PC workstation, calculate the input energy of the wave energy power generation device by the wave energy flux difference, and calculate the output energy of the wave energy power generation device by collecting data through the current and voltage collection module, thereby calculating the energy conversion efficiency of the device, so that the performance analysis of the wave energy device is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0016] Figure 1 It is a structural schematic diagram of a performance testing device for a wave energy power generation device of the utility model.

[0017] In the figure: 1. water tank; 11. slide rail; 2. motor; 3. wave-making board; 4. wave height meter; 51. vertical pole; 52. rotating seat; 53. retractable connecting rod; 6. wave energy power generation device; 7. voltage and current collection device; 8. wave-breaking board; 9. PC workstation. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0019] like Figure 1 As shown, a wave energy power generation device performance test device proposed by the utility model includes a water tank 1, a motor 2, a wave-making board 3, a wave height meter 4, a voltage and current acquisition device 7 and a PC workstation 9. The wave-making board 3 is installed at the front end of the water tank 1, and the motor 2 is arranged outside the water tank 1 and connected to the wave-making board 3 to drive the wave-making board 3 to make waves. A working area for installing the wave energy power generation device 6 is provided in the middle of the water tank 1, and a slide rail 11 is provided on the inner wall of one side of the water tank 1 along the front and rear direction of the water tank 1. The front end of the slide rail 11 extends to the front of the working area, and the rear end of the slide rail 11 extends to the rear of the working area. The wave height meter 4 is installed on the slide rail 11 and can move forward and backward along the slide rail 11, so that the wave height meter 4 can be moved horizontally to collect wave data at the front and rear ends, including wave height and period data. The voltage and current acquisition device 7 is connected to the wave energy power generation device 6 to collect voltage and current signals. The motor 2, the wave height meter 4 and the voltage and current acquisition device 7 are respectively connected to the PC workstation 9 by signal. The working parameters of the motor 2 are set through the PC workstation 9 before starting. During the test, the parameter values ​​in the water tank 1 monitored by the wave height meter 4 can be viewed in real time on the PC workstation 9. The voltage and current acquisition device 7 transmits the voltage and current information to the PC workstation 9 in real time.

[0020] Further optimized, the performance test device of the wave energy power generation device 6 also includes a position adjustment support, which includes a vertical pole 51, a rotating seat 52 and a retractable connecting rod 53. The lower end of the vertical pole 51 is fixedly installed on the bottom surface of the water tank 1, and the rotating seat 52 is rotatably installed on the upper end of the vertical pole 51. One end of the retractable connecting rod 53 is connected to the rotating seat 52, and the other end is connected to the wave height meter 4. The position of the wave height meter 4 on the slide rail 11 is adjusted by toggling the rotating seat 52.

[0021] For further optimization, a slider is installed on the slide rail 11, the wave height meter 4 is installed on the slider, and the other end of the telescopic connecting rod 53 is connected to the slider.

[0022] Further optimized, the slide rail 11 is a slide groove opened on the inner wall of one side of the water tank 1.

[0023] For further optimization, the performance test device of the wave energy power generation device 6 also includes a wave-breaking plate 8 arranged at the rear end of the water tank 1, and a sufficiently long distance is maintained between the wave-breaking plate 8 and the rear end of the slide rail 11 to reduce the influence of reflected waves on the measurement data of the wave height meter.

[0024] Further optimization, placing the wave-breaking plate 8 at an angle of 30° to the horizontal position can minimize the impact of reflected waves.

[0025] For further optimization, the voltage and current acquisition device 7 is installed outside the water tank 1 .

[0026] Further optimized, the motor 2 is a programmable linear motor 2.

[0027] The PC workstation 9 can also be used to process the wave height and period data collected by the wave height meter 4 to calculate the wave energy flux. The wave energy flux calculation formula is as follows:

[0028]

[0029] Where: Jn-wave energy flux in the statistical period, W / m;

[0030] ρ-seawater density, kg / m 3 ;

[0031] g-gravitational acceleration, m / s 2 ;

[0032] H s -Effective wave height during the statistical period, m;

[0033] T - wave period of effective wave height within the statistical period, s.

[0034] The implementation method of the above wave energy power generation device and the testing device is as follows:

[0035] (1) Preparation before the experiment: connect motor 2 to PC workstation 9 to adjust its operating frequency and start motor 2;

[0036] (2) Connect the wave height meter 4 to the PC workstation 9, and then move the wave height meter 4 to the front end to collect wave parameters such as wave height and period, which are the wave conditions to be collected by the wave energy power generation device 6;

[0037] (3) Turn off the motor 2 and move the wave height meter 4 to the rear end; arrange the wave energy generating device 6 to the working area in the middle of the water tank 1 and connect the voltage and current acquisition device 7; then connect the voltage and current acquisition device 7 to the PC workstation 9;

[0038] (4) The motor 2 is started, and the voltage and current information is collected by the voltage and power supply acquisition module and transmitted to the PC workstation 9 in real time, and the wave height meter 4 collects the wave conditions at the rear end of the wave energy power generation device 6;

[0039] (5) According to the wave energy flux calculation formula, the front-end collected data is statistically calculated to calculate the front-end wave energy flux J n1 , calculate the back-end wave energy flux J based on the back-end collected data n2 , by the difference J n1 -J n2The input energy of the wave energy power generation device 6 is calculated, and the output energy of the wave energy power generation device 6 is calculated by collecting data through the current and voltage acquisition module, thereby calculating the energy conversion efficiency of the device.

[0040] (6) Turn off the motor 2, reset the operating frequency of the motor 2, repeat the above steps, and find the optimal wave parameters of the wave energy power generation device 6.

[0041] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

Claims

1. A wave energy power generation device performance test device, comprising a water tank, a motor and a wave-making board, wherein the wave-making board is installed at the front end of the water tank, and the motor is arranged outside the water tank and connected to the wave-making board to drive the wave-making board to generate waves; characterized in that: It also includes a wave height meter, a voltage and current collection device and a PC workstation; a working area for installing a wave energy power generation device is provided in the middle of the water tank, a slide rail is provided on the inner wall of one side of the water tank along the front and rear direction of the water tank, the front end of the slide rail extends to the front of the working area, and the rear end of the slide rail extends to the rear of the working area; the wave height meter is installed on the slide rail and can move forward and backward along the slide rail; the voltage and current collection device is connected to the wave energy power generation device to collect voltage and current signals; the motor, the wave height meter and the voltage and current collection device are respectively connected to the PC workstation signal.

2. The wave energy power generation device performance testing device according to claim 1, characterized in that: It also includes a position adjustment support, which includes a vertical pole, a rotating seat and a retractable connecting rod. The lower end of the vertical pole is fixedly installed on the bottom surface of the water tank, and the rotating seat is rotatably installed on the upper end of the vertical pole. One end of the retractable connecting rod is connected to the rotating seat, and the other end is connected to the wave height meter.

3. The wave energy power generation device performance testing device according to claim 2, characterized in that: A sliding block is installed on the slide rail, the wave height meter is installed on the sliding block, and the other end of the telescopic connecting rod is connected to the sliding block.

4. The wave energy power generation device performance testing device according to claim 1, characterized in that: The slide rail is a slide groove opened on the inner wall of one side of the water tank.

5. The wave energy power generation device performance testing device according to claim 1, characterized in that: It also includes a wave-breaking plate arranged at the rear end of the water tank, and a sufficiently long distance is reserved between the wave-breaking plate and the rear end of the slide rail to reduce the influence of reflected waves on the measurement data of the wave height meter.

6. The wave energy power generation device performance testing device according to claim 5, characterized in that: The wave-breaking plate is placed at an angle of 30° to the horizontal position.

7. The wave energy power generation device performance testing device according to claim 1, characterized in that: The voltage and current acquisition device is installed outside the water tank.

8. The wave energy power generation device performance testing device according to claim 1, characterized in that: The motor is a programmable linear motor.

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