Driving self-locking tidal current energy array test platform work test device

Abstract

A driving self-locking tidal current energy array test platform work test device comprises a circulating water tank, an aluminum profile supporting frame, a stepping motor unit, a transverse guide rail set, a longitudinal toothed guide rail set and a water turbine simulation unit, and the transverse guide rail set is installed above the circulating water tank and supported by the aluminum profile supporting frame; the stepping motor set is installed on the transverse guide rail set, the longitudinal toothed guide rail set is installed on the stepping motor set, and the water turbine simulation set is installed above the longitudinal toothed guide rail set. Therefore, a plurality of water turbine simulation units can be installed above the longitudinal toothed guide rail group, and a plurality of array water turbine units can be installed above the transverse guide rail group to meet experimental requirements.

Description

Technical field:

[0001] The invention relates to a working test device for driving a self-locking tidal energy array test platform. Background technology:

[0002] Tidal energy, as a renewable energy source, has the characteristics of high predictability, low environmental impact and high energy density. It is one of the most promising energy types in ocean energy. Currently, model experiments on tidal energy power generation devices mainly focus on the performance testing of a single turbine and the development of tidal energy or wave energy test platforms.

[0003] In order to increase the overall power generation scale, tidal power plants generally include multiple tidal power turbines, and their total power generation is affected by various coupling factors between devices, such as the device array layout and wake effect. Therefore, in order to improve the power generation efficiency of the turbine unit, it is crucial to optimize the layout of the turbine array to reduce the influence of coupling factors such as the wake effect.

[0004] Most of the existing tidal energy test platforms are simple platforms built temporarily. The platform and the tidal energy test model are mostly assembled and connected by fixed parts or directly welded. During the experiment, if different working conditions such as different water depths, different impeller directions, and different array layouts need to be simulated, the model needs to be manually disassembled and reassembled, and automatic adjustment is not possible. This kind of platform makes the test operation complicated. During the operation, it is necessary to wade in water or drain the water tank before operation. It is also impossible to make synchronous adjustments in time during the test, which greatly increases the test cost, affects the test effect, and restricts the experimental test research of tidal energy arrays. Summary of the invention:

[0005] The embodiment of the present invention provides a driving self-locking tidal energy array test platform working test device with reasonable structural design. The array turbine unit is used to simulate the turbine array, and the circulating water tank is combined to simulate the tidal flow field. By changing the array layout of the tidal energy turbine, and using the test system driving device and data processing, the simulation of the running state of the turbine in the tidal field is realized. A plurality of turbine simulation units are installed above the longitudinal toothed guide rail and a plurality of array turbine units are installed above the transverse guide rail group. The layout of the turbine array and the water depth position of the device are automatically adjusted, the experimental steps are simplified, the labor cost is reduced, and the power generation efficiency of different tidal energy turbine array models is observed. At the same time, the turbine rotation and folding device is used to complete the simulated operation of the tidal energy array test device in different water depths and water flow environments, so as to obtain a more efficient running state of the simulated turbine in the tidal field, further obtain the optimal array distribution law of the simulated turbine, and solve the problems existing in the prior art.

[0006] The technical solution adopted by the present invention to solve the above technical problems is:

[0007] A driving self-locking tidal energy array test platform working test device, the test device comprises a circulating water tank, an aluminum profile support frame, a stepper motor unit, a transverse guide rail group, a longitudinal toothed guide rail group and a turbine simulation unit, the transverse guide rail group is installed above the circulating water tank and supported by the aluminum profile support frame;

[0008] The stepper motor unit is installed on the transverse guide rail unit, the longitudinal toothed guide rail unit is installed on the stepper motor unit, and the turbine simulation unit is installed above the longitudinal toothed guide rail unit, so that multiple turbine simulation units can be installed above the longitudinal toothed guide rail unit and multiple array turbine units can be installed above the transverse guide rail unit to meet the experimental requirements;

[0009] The stepper motor unit includes a stepper motor, a reducer, a transmission gear mechanism, an electric sliding mechanism and a cross-rail sliding mechanism; the stepper motor is arranged above the stepper motor unit and is fixedly connected to the reducer, the lower end of the reducer is connected to the transmission gear mechanism, the transmission gear mechanism is fixed to the upper surface of the motor sliding mechanism, the driving gear below the transmission gear mechanism is meshed with the fixed rack on the lower side of the guide rail, the sliding wheels in the motor sliding mechanism and the cross-rail sliding mechanism are contacted and clamped with the guide rail, and the stepper motor unit is fixed to the slide rail.

[0010] The turbine simulation unit includes a turbine stepper motor unit, a turbine rotation and folding device and a turbine scale model. The turbine stepper motor unit is installed on the upper part of the longitudinal toothed guide rail unit, the turbine rotation and folding device is fixedly installed below the turbine stepper motor unit, and the turbine scale model is fixedly installed at the bottom of the turbine rotation and folding mechanism.

[0011] The longitudinal toothed guide rail group includes a longitudinal guide rail, a longitudinal rack and a longitudinal rail fixing block. The longitudinal rail fixing block is fixedly installed on the upper end surface of the motor sliding mechanism and the transverse rail sliding mechanism. The longitudinal toothed guide rail group and the transverse guide rail group are placed at a 90-degree angle.

[0012] The scaled model of the water turbine comprises water turbine blades, a torque and speed measuring instrument, an accelerator, a rotating shaft, a power generation device and a cabin; the water turbine blades, the torque and speed measuring instrument, the accelerator and the power generation device are connected to the rotating shaft, and the torque and speed measuring instrument, the accelerator and the power generation device are fixedly installed inside the cabin; the internal space of the cabin is an internal closed space to prevent water from entering the cabin.

[0013] The turbine rotating and folding device comprises a steering drive motor, a folding drive motor, a turbine rotating device and a turbine folding device; the steering drive motor is fixedly mounted on the upper end face of the turbine stepper motor unit, the steering drive motor passes through the end face of the turbine stepper motor unit and is fixedly connected to the turbine rotating device, the folding drive motor is fixed to the lower part of the turbine rotating device, the turbine folding device is fixedly connected to the rotating shaft of the folding drive motor, and the lower part of the turbine folding device is fixedly connected to the turbine scale model.

[0014] The test device also includes a control system, which includes a PLC controller, a resistive load, a current transformer, a power supply, a data acquisition and analysis device, and a computer, and the control system is arranged on an external experimental platform;

[0015] The PLC controller is associated with the stepper motor and the drive motor in the device, the resistive load is connected to the power generation device in the turbine scale model cabin, the resistive load is connected to the converter, the converter is connected to the data acquisition and analysis device, the power supply provides power to the data acquisition and analysis device, the computer and the PLC controller, and the data acquisition and analysis device is interconnected and communicated with the computer so that data is collected and obtained by the data acquisition and analysis device and output by the computer at the same time.

[0016] The testing method of the testing device comprises the following steps:

[0017] S1, install relevant instruments and equipment, create new test documents and records in the data acquisition and analysis device, use the PLC controller to grid the circulating water tank and set constraints; set the position of the two turbine scale models to z j =[x j ,y j ,h j ] and z i =[x i ,y i ,h i ], the diameter of the turbine scale model blade is n, and the safe operation distance of the turbine scale model is set to 5×n meters:

[0018]

[0019] S2, input the position coordinates of the hydraulic turbine simulation unit into the PLC controller, adjust the stepper motor to rotate according to the set relevant program, control the hydraulic turbine simulation unit to move to the specified position, complete the array layout of the tidal energy turbine required by the experiment, fix the position of the hydraulic turbine simulation unit array model, drive the hydraulic turbine rotation folding device to lower the hydraulic turbine scale model, and the hydraulic turbine scale model enters the circulating water tank. The circulating water tank is opened, and the water flow reaches the specified flow rate. At this time, the hydraulic turbine simulation unit and the stepper motor unit are locked to prevent the hydraulic turbine simulation unit device from being impacted by the water flow and changing its position;

[0020] S3, the water flow drives the impeller of the scaled model of the turbine to rotate, and the torque and speed measuring instrument in the cabin records the corresponding torque parameters and speed parameters. The accelerator is used to set the steady speed and increasing speed of the shaft rotation to drive the generator to generate electricity. The resistive load is connected to the generator in the cabin of the scaled model of the turbine. Multiple currents are output after passing through the load and connected to the converter. The converter outputs constant frequency electric energy to the data acquisition and analysis device through voltage conversion and current control. Through data acquisition and analysis, the data is obtained through computer output to complete the experimental task.

[0021] The present invention adopts the above structure, changes the array layout of the tidal energy turbine, and utilizes the test system drive device and data processing to realize the simulation of the operating state of the turbine in the tidal field; by installing multiple turbine simulation units above the longitudinal toothed guide rail and multiple array turbine units above the transverse guide rail group, the layout of the turbine array and the water depth position of the device are automatically adjusted; by setting up multiple groups of control experiments, the power generation efficiency of different tidal energy turbine array models can be observed, which has the advantages of simplicity, efficiency, accuracy and reliability. Description of the drawings:

[0022] Figure 1 It is a structural schematic diagram of the present invention.

[0023] Figure 2 It is a structural schematic diagram of the stepping motor unit of the present invention.

[0024] Figure 3 It is a schematic structural diagram of the longitudinal toothed guide rail assembly of the present invention.

[0025] Figure 4 It is a structural schematic diagram of the hydraulic turbine simulation unit of the present invention.

[0026] Figure 5 It is a structural schematic diagram of the water turbine stepping motor unit of the present invention.

[0027] Figure 6 It is a structural schematic diagram of a scaled model of a water turbine of the present invention.

[0028] Figure 7It is a schematic structural diagram of the water turbine rotation and folding device of the present invention.

[0029] Figure 8 It is a schematic diagram of the structure of the control system of the present invention.

[0030] Fig. 9 It is a schematic diagram of a tidal current energy experimental test of a water turbine array of the present invention.

[0031] Fig.10 It is a schematic diagram of the tidal energy experimental test of the steering turbine array of the present invention.

[0032] In the figure, 1-circulating water tank, 2-aluminum profile support frame, 3-stepping motor unit, 4-transverse guide rail group, 5-longitudinal toothed guide rail group, 6-turbine simulator, 7-stepping motor, 8-reducer, 9-motor sliding mechanism, 10-transmission gear mechanism, 11-transverse rail sliding mechanism, 12-longitudinal rail fixing block, 13-longitudinal guide rail, 14-longitudinal rack, 15-turbine stepping motor unit, 16-turbine rotation and folding device, 17-turbine scale model, 18-turbine blade, 19-torque speed measuring instrument, 20-accelerator, 21-generator, 22-cabin, 23-rotating shaft, 24-steering drive motor, 25-turbine rotation device, 26-folding drive motor, 27-turbine folding device, 28-PLC controller, 29-resistance load, 30-converter, 31-data acquisition and analysis device, 32-computer, 33-power supply. Specific implementation method:

[0033] In order to clearly illustrate the technical features of the present solution, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0034] like Figure 1-10 As shown in , a driving self-locking tidal energy array test platform working test device, the test device includes a circulating water tank, an aluminum profile support frame, a stepper motor unit, a transverse guide rail group, a longitudinal toothed guide rail group and a turbine simulation unit, the transverse guide rail group is installed above the circulating water tank and supported by the aluminum profile support frame;

[0035] The stepper motor unit is installed on the transverse guide rail unit, the longitudinal toothed guide rail unit is installed on the stepper motor unit, and the turbine simulation unit is installed above the longitudinal toothed guide rail unit, so that multiple turbine simulation units can be installed above the longitudinal toothed guide rail unit and multiple array turbine units can be installed above the transverse guide rail unit to meet the experimental requirements;

[0036] The stepper motor unit includes a stepper motor, a reducer, a transmission gear mechanism, an electric sliding mechanism and a cross-rail sliding mechanism; the stepper motor is arranged above the stepper motor unit and is fixedly connected to the reducer, the lower end of the reducer is connected to the transmission gear mechanism, the transmission gear mechanism is fixed to the upper surface of the motor sliding mechanism, the driving gear below the transmission gear mechanism is meshed with the fixed rack on the lower side of the guide rail, the sliding wheels in the motor sliding mechanism and the cross-rail sliding mechanism are contacted and clamped with the guide rail, and the stepper motor unit is fixed to the slide rail.

[0037] The turbine simulation unit includes a turbine stepper motor unit, a turbine rotation and folding device and a turbine scale model. The turbine stepper motor unit is installed on the upper part of the longitudinal toothed guide rail unit, the turbine rotation and folding device is fixedly installed below the turbine stepper motor unit, and the turbine scale model is fixedly installed at the bottom of the turbine rotation and folding mechanism.

[0038] The longitudinal toothed guide rail group includes a longitudinal guide rail, a longitudinal rack and a longitudinal rail fixing block. The longitudinal rail fixing block is fixedly installed on the upper end surface of the motor sliding mechanism and the transverse rail sliding mechanism. The longitudinal toothed guide rail group and the transverse guide rail group are placed at a 90-degree angle.

[0039] The scaled model of the water turbine comprises water turbine blades, a torque and speed measuring instrument, an accelerator, a rotating shaft, a power generation device and a cabin; the water turbine blades, the torque and speed measuring instrument, the accelerator and the power generation device are connected to the rotating shaft, and the torque and speed measuring instrument, the accelerator and the power generation device are fixedly installed inside the cabin; the internal space of the cabin is an internal closed space to prevent water from entering the cabin.

[0040] The turbine rotating and folding device comprises a steering drive motor, a folding drive motor, a turbine rotating device and a turbine folding device; the steering drive motor is fixedly mounted on the upper end face of the turbine stepper motor unit, the steering drive motor passes through the end face of the turbine stepper motor unit and is fixedly connected to the turbine rotating device, the folding drive motor is fixed to the lower part of the turbine rotating device, the turbine folding device is fixedly connected to the rotating shaft of the folding drive motor, and the lower part of the turbine folding device is fixedly connected to the turbine scale model.

[0041] The test device also includes a control system, which includes a PLC controller, a resistive load, a current transformer, a power supply, a data acquisition and analysis device, and a computer, and the control system is arranged on an external experimental platform;

[0042] The PLC controller is associated with the stepper motor and the drive motor in the device, the resistive load is connected to the power generation device in the turbine scale model cabin, the resistive load is connected to the converter, the converter is connected to the data acquisition and analysis device, the power supply provides power to the data acquisition and analysis device, the computer and the PLC controller, and the data acquisition and analysis device is interconnected and communicated with the computer so that data is collected and obtained by the data acquisition and analysis device and output by the computer at the same time.

[0043] The testing method of the testing device comprises the following steps:

[0044] S1, install relevant instruments and equipment, create new test documents and records in the data acquisition and analysis device, use the PLC controller to grid the circulating water tank and set constraints; set the position of the two turbine scale models to z j =[x j ,y j ,h j ] and z i =[x i ,y i ,h i ], the diameter of the turbine scale model blade is n, and the safe operation distance of the turbine scale model is set to 5×n meters:

[0045]

[0046] S2, input the position coordinates of the hydraulic turbine simulation unit into the PLC controller, adjust the stepper motor to rotate according to the set relevant program, control the hydraulic turbine simulation unit to move to the specified position, complete the array layout of the tidal energy turbine required by the experiment, fix the position of the hydraulic turbine simulation unit array model, drive the hydraulic turbine rotation folding device to lower the hydraulic turbine scale model, and the hydraulic turbine scale model enters the circulating water tank. The circulating water tank is opened, and the water flow reaches the specified flow rate. At this time, the hydraulic turbine simulation unit and the stepper motor unit are locked to prevent the hydraulic turbine simulation unit device from being impacted by the water flow and changing its position;

[0047] S3, the water flow drives the impeller of the scaled model of the turbine to rotate, and the torque and speed measuring instrument in the cabin records the corresponding torque parameters and speed parameters. The accelerator is used to set the steady speed and increasing speed of the shaft rotation to drive the generator to generate electricity. The resistive load is connected to the generator in the cabin of the scaled model of the turbine. Multiple currents are output after passing through the load and connected to the converter. The converter outputs constant frequency electric energy to the data acquisition and analysis device through voltage conversion and current control. Through data acquisition and analysis, the data is obtained through computer output to complete the experimental task.

[0048] The working principle of a driving self-locking tidal energy array test platform working test device in an embodiment of the present invention is: using an array turbine unit to simulate a turbine array, combining a circulating water tank to simulate a tidal flow field, by changing the array layout of the tidal energy turbine, and using the test system drive device and data processing, the simulation of the operating state of the turbine in the tidal field is realized, multiple turbine simulation units are installed above the longitudinal toothed guide rail and multiple array turbine units are installed above the transverse guide rail group, and the layout of the turbine array and the water depth position of the device are automatically adjusted, the experimental steps are simplified, the labor cost is reduced, and the power generation efficiency of different tidal energy turbine array models is observed. At the same time, the turbine rotation and folding device is used to complete the simulated operation of the tidal energy array test device in different water depths and water flow environments, so as to obtain a more efficient operating state of the simulated turbine in the tidal field, and further obtain the optimal array distribution law of the simulated turbine.

[0049] At present, the model experiments of tidal power generation devices mainly focus on the testing of single turbine performance and the development of tidal energy or comprehensive test platforms. The invention patent with application number 201710810447.9 discloses a test platform and test method for the hydrodynamic performance of horizontal axis tidal energy turbines. It adopts a test platform for studying the hydrodynamic performance of horizontal axis tidal energy turbines in a circulating water tank. Under this test platform, the key parameters for measuring the performance of horizontal axis turbines, such as energy conversion efficiency, main shaft load, torque coefficient and thrust coefficient, can be measured, so as to provide reference and reference for the design of horizontal axis turbine engineering prototypes, and also provide experimental verification for CFD numerical simulation and theoretical research of hydrodynamic performance of horizontal axis impellers. The invention patent with application number 201510441004.8 discloses a comprehensive test platform for wave energy and tidal energy power generation and its working condition simulation method, which can be used for the simulation and performance testing of wave energy and tidal energy power generation characteristics, and provide necessary testing means and experimental platforms for wave energy and tidal energy power generation to determine whether its performance meets the requirements.

[0050] In order to increase the overall power generation scale, tidal energy power plants generally include multiple tidal energy turbines, and their total power generation is affected by various coupling factors between devices, such as the device array layout and wake effect. Therefore, in order to improve the power generation efficiency of the turbine unit, it is crucial to optimize the layout of the turbine array to reduce the influence of coupling factors such as the wake effect. The invention patent with application number 202110366219.3 discloses a turbine array optimization method based on a quantum discrete particle swarm algorithm, which provides a reference for the layout design of the turbine array of a tidal energy power plant and realizes the automatic optimization of the turbine array layout. However, this method can only numerically simulate the levelized cost of electricity and power generation efficiency of the turbine tidal energy power plant, and cannot actually measure the power generation of the turbine unit, let alone simulate the power generation of turbine arrays at different water depths and different impeller directions.

[0051] In view of the fact that the existing tidal energy power generation test comprehensive test platform is relatively simple and cannot automatically adjust the device array layout and water depth, resulting in cumbersome and complicated experimental operations, and the problem that the turbine impeller direction cannot be adjusted in time during the experiment, the present application provides a test platform for studying the layout of tidal energy turbine arrays in a circulating water tank, and a test method based on this platform, which can conveniently measure the power generation efficiency of the turbine array and the wake effect formed by the array, and then the cost input and output ratio of the tidal electric field can be obtained, thereby providing a reference and reference for the design of turbine array engineering prototypes, and can also provide experimental verification for the numerical simulation and theoretical research of the tidal energy turbine array layout.

[0052] In the overall scheme, the test device mainly includes a circulating water tank, an aluminum profile support frame, a stepper motor unit, a transverse guide rail group, a longitudinal toothed guide rail group and a turbine simulation unit. The transverse guide rail group is installed above the circulating water tank and supported by the aluminum profile support frame;

[0053] The stepper motor unit is installed on the transverse guide rail group, the longitudinal toothed guide rail group is installed on the stepper motor unit, and the turbine simulation unit is installed above the longitudinal toothed guide rail group, so that multiple turbine simulation units can be installed above the longitudinal toothed guide rail group and multiple array turbine units can be installed above the transverse guide rail group to meet experimental requirements.

[0054] The stepper motor unit includes a stepper motor, a reducer, a transmission gear mechanism, an electric sliding mechanism and a cross-rail sliding mechanism; the stepper motor is arranged above the stepper motor unit and is fixedly connected to the reducer, the lower end of the reducer is connected to the transmission gear mechanism, the transmission gear mechanism is fixed to the upper surface of the motor sliding mechanism, the driving gear below the transmission gear mechanism is meshed with the fixed rack on the lower side of the guide rail, the sliding wheels in the motor sliding mechanism and the cross-rail sliding mechanism are contacted and clamped with the guide rail, and the stepper motor unit is fixed to the slide rail.

[0055] Specifically, the turbine simulation unit includes a turbine stepper motor unit, a turbine rotation and folding device and a turbine scale model, the turbine stepper motor unit is installed on the upper part of the longitudinal toothed guide rail unit, the turbine rotation and folding device is fixedly installed below the turbine stepper motor unit, and the turbine scale model is fixedly installed at the bottom of the turbine rotation and folding mechanism; the longitudinal toothed guide rail unit includes a longitudinal guide rail, a longitudinal rack and a longitudinal rail fixing block, the longitudinal rail fixing block is fixedly installed on the upper end surface of the motor sliding mechanism and the transverse rail sliding mechanism, the longitudinal toothed guide rail unit and the transverse guide rail are placed at a 90-degree angle to stabilize the overall structure.

[0056] Furthermore, the scaled model of the turbine includes turbine blades, a torque and speed measuring instrument, an accelerator, a rotating shaft, a power generation device and a cabin; the turbine blades, the torque and speed measuring instrument, the accelerator and the power generation device are connected to the rotating shaft, and the torque and speed measuring instrument, the accelerator and the power generation device are fixedly installed inside the cabin; the enclosed space inside the cabin is a closed space to prevent water from entering the cabin.

[0057] Furthermore, the turbine rotating and folding device includes a steering drive motor, a folding drive motor, a turbine rotating device and a turbine folding device; the steering drive motor is fixedly mounted on the upper end face of the turbine stepper motor unit, the steering drive motor passes through the end face of the turbine stepper motor unit and is fixedly connected to the turbine rotating device, the folding drive motor is fixed to the lower part of the turbine rotating device, the turbine folding device is fixedly connected to the rotating shaft of the folding drive motor, the lower part of the turbine folding device is fixedly connected to the turbine scale model, the water flow is set to a specified flow rate in conjunction with the circulating water tank, and the turbine simulation unit is locked to prevent the turbine simulation unit from changing position and offsetting due to the impact of the water flow.

[0058] In line with the overall functional component structure, the control system of the present application includes a PLC controller, a resistive load, an inverter, a power supply, a data acquisition and analysis device and a computer, and the control system is arranged on an external experimental platform; the specific electrical connection relationship is: the PLC controller is associated with the stepper motor and the drive motor in the device, the resistive load is connected to the power generation device in the turbine scale model cabin, the resistive load is connected to the inverter, the inverter is connected to the data acquisition and analysis device, the power supply provides power to the data acquisition and analysis device, the computer and the PLC controller, and the data acquisition and analysis device is interconnected and communicated with the computer so that data is collected and obtained by the data acquisition and analysis device and output by the computer at the same time.

[0059] The test method of this application mainly includes the following steps: installing relevant instruments and equipment, creating new test documents and records in the data acquisition and analysis device, using the PLC controller to grid the circulating water tank and set constraints; setting the positions of the scaled models of the two turbines to z j =[x j ,y j ,h j ] and z i =[x i ,y i ,h i ], the diameter of the turbine scale model blade is n, and the safe operation distance of the turbine scale model is set to 5×n meters:

[0060]

[0061] The position coordinates of the turbine simulation unit are input into the PLC controller, and the stepper motor is adjusted to rotate according to the set relevant program to control the turbine simulation unit to move to the specified position, complete the array layout of the tidal energy turbine required by the experiment, fix the position of the turbine simulation unit array model, and the turbine rotation folding device drives the turbine scale model to be lowered. The turbine scale model enters the circulating water tank, the circulating water tank is opened, and the water flow reaches the specified flow rate. At this time, the turbine simulation unit and the stepper motor unit are locked to prevent the turbine simulation unit device from being impacted by the water flow and changing its position.

[0062] The water flow drives the impeller of the scaled turbine model to rotate. The torque and speed measuring instrument in the cabin records the corresponding torque parameters and speed parameters. The accelerator is used to set the steady speed and increasing speed of the shaft rotation to drive the generator to generate electricity. The resistive load is connected to the generator in the scaled turbine model cabin. Multiple currents are output after passing through the load and connected to the converter. The converter outputs constant-frequency electrical energy to the data acquisition and analysis device through voltage conversion and current control. Through data acquisition and analysis, the data is output through a computer to complete the experimental task.

[0063] Further, as attached Fig. 9 and attached Fig.10 As shown, in the tidal energy turbine array experiment consisting of four groups of turbine simulation units, when multiple groups of turbine experimental tests are required, multiple turbine simulation units can be installed above the longitudinal toothed guide rails and multiple array turbine units can be installed above the transverse guide rail group to meet the experimental requirements, and the power generation efficiency of the current tidal energy turbine array model can be observed and compared with the experimental optimization, and then the array optimization model of the tidal turbine electric field can be obtained.

[0064] In the steering turbine array experiment, after completing the array layout of the tidal energy turbines required by the experiment, the steering drive motor that drives the turbine rotation folding device drives the turbine simulation unit to rotate, changing the direction of the impeller of the turbine simulation unit. It can be used to test the rotation operation of the turbine in different flow rate environments, and thus more efficiently simulate the operation status of the turbine in the tidal field.

[0065] It is particularly noted that the present application can quickly and accurately change the plane position and water depth position of the position in the array, solving the technical problems that restrict the testing of tidal energy arrays.

[0066] In summary, a driven self-locking tidal energy array test platform working test device in an embodiment of the present invention uses an array turbine unit to simulate a turbine array, combined with a circulating water tank to simulate a tidal flow field, and by changing the array layout of the tidal energy turbine, and using the test system drive device and data processing, the simulation of the operating state of the turbine in the tidal field is realized, and multiple turbine simulation units are installed above the longitudinal toothed guide rail and multiple array turbine units are installed above the transverse guide rail group. The layout of the turbine array and the water depth position of the device are automatically adjusted, the experimental steps are simplified, the labor cost is reduced, and the power generation efficiency of different tidal energy turbine array models is observed. At the same time, the turbine rotation and folding device is used to complete the simulated operation of the tidal energy array test device in different water depths and water flow environments, thereby obtaining a more efficient operating state of the simulated turbine in the tidal field, and further obtaining the optimal array distribution law of the simulated turbine.

[0067] The above specific implementation manner cannot be used as a limitation on the protection scope of the present invention. For those skilled in the art, any substitution, improvement or change made to the implementation manner of the present invention falls within the protection scope of the present invention.

[0068] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. A driving self-locking tidal energy array test platform working test device, characterized in that: The test device comprises a circulating water tank, an aluminum profile support frame, a stepper motor unit, a transverse guide rail group, a longitudinal toothed guide rail group and a turbine simulation unit, wherein the transverse guide rail group is installed above the circulating water tank and supported by the aluminum profile support frame; The stepper motor unit is installed on the transverse guide rail unit, the longitudinal toothed guide rail unit is installed on the stepper motor unit, and the turbine simulation unit is installed above the longitudinal toothed guide rail unit, so that multiple turbine simulation units can be installed above the longitudinal toothed guide rail unit and multiple array turbine units can be installed above the transverse guide rail unit to meet the experimental requirements; The stepper motor unit includes a stepper motor, a reducer, a transmission gear mechanism, an electric sliding mechanism and a cross-rail sliding mechanism; the stepper motor is arranged above the stepper motor unit and is fixedly connected to the reducer, the lower end of the reducer is connected to the transmission gear mechanism, the transmission gear mechanism is fixed to the upper surface of the motor sliding mechanism, the driving gear below the transmission gear mechanism is meshed with the fixed rack on the lower side of the guide rail, the sliding wheels in the motor sliding mechanism and the cross-rail sliding mechanism are contacted and clamped with the guide rail, and the stepper motor unit is fixed to the slide rail.

2. A driving self-locking tidal energy array test platform working test device according to claim 1, characterized in that: The turbine simulation unit includes a turbine stepper motor unit, a turbine rotation and folding device and a turbine scale model. The turbine stepper motor unit is installed on the upper part of the longitudinal toothed guide rail unit, the turbine rotation and folding device is fixedly installed below the turbine stepper motor unit, and the turbine scale model is fixedly installed at the bottom of the turbine rotation and folding mechanism.

3. A driving self-locking tidal energy array test platform working test device according to claim 1, characterized in that: The longitudinal toothed guide rail group includes a longitudinal guide rail, a longitudinal rack and a longitudinal rail fixing block. The longitudinal rail fixing block is fixedly installed on the upper end surface of the motor sliding mechanism and the transverse rail sliding mechanism. The longitudinal toothed guide rail group and the transverse guide rail group are placed at a 90-degree angle.

4. A driving self-locking tidal energy array test platform working test device according to claim 2, characterized in that: The scaled model of the water turbine comprises water turbine blades, a torque and speed measuring instrument, an accelerator, a rotating shaft, a power generation device and a cabin; the water turbine blades, the torque and speed measuring instrument, the accelerator and the power generation device are connected to the rotating shaft, and the torque and speed measuring instrument, the accelerator and the power generation device are fixedly installed inside the cabin; the internal space of the cabin is an internal closed space to prevent water from entering the cabin.

5. A driving self-locking tidal energy array test platform working test device according to claim 2, characterized in that: The turbine rotating and folding device comprises a steering drive motor, a folding drive motor, a turbine rotating device and a turbine folding device; the steering drive motor is fixedly mounted on the upper end face of the turbine stepper motor unit, the steering drive motor passes through the end face of the turbine stepper motor unit and is fixedly connected to the turbine rotating device, the folding drive motor is fixed to the lower part of the turbine rotating device, the turbine folding device is fixedly connected to the rotating shaft of the folding drive motor, and the lower part of the turbine folding device is fixedly connected to the turbine scale model.

6. A driving self-locking tidal energy array test platform working test device according to claim 2, characterized in that: The test device also includes a control system, which includes a PLC controller, a resistive load, a current transformer, a power supply, a data acquisition and analysis device, and a computer, and the control system is arranged on an external experimental platform; The PLC controller is associated with the stepper motor and the drive motor in the device, the resistive load is connected to the power generation device in the turbine scale model cabin, the resistive load is connected to the converter, the converter is connected to the data acquisition and analysis device, the power supply provides power to the data acquisition and analysis device, the computer and the PLC controller, and the data acquisition and analysis device is interconnected and communicated with the computer so that data is collected and obtained by the data acquisition and analysis device and output by the computer at the same time.

7. A driving self-locking tidal energy array test platform working test device according to claim 6, characterized in that: The testing method of the testing device comprises the following steps: S1, install relevant instruments and equipment, create new test documents and records in the data acquisition and analysis device, use the PLC controller to grid the circulating water tank and set constraints; set the position of the two turbine scale models to z j =[x j ,y j ,h j ] and z i =[x i ,y i ,h i ], the diameter of the turbine scale model blade is n, and the safe operation distance of the turbine scale model is set to 5×n meters: S2, input the position coordinates of the hydraulic turbine simulation unit into the PLC controller, adjust the stepper motor to rotate according to the set relevant program, control the hydraulic turbine simulation unit to move to the specified position, complete the array layout of the tidal energy turbine required by the experiment, fix the position of the hydraulic turbine simulation unit array model, drive the hydraulic turbine rotation folding device to lower the hydraulic turbine scale model, and the hydraulic turbine scale model enters the circulating water tank. The circulating water tank is opened, and the water flow reaches the specified flow rate. At this time, the hydraulic turbine simulation unit and the stepper motor unit are locked to prevent the hydraulic turbine simulation unit device from being impacted by the water flow and changing its position; S3, the water flow drives the impeller of the scaled model of the turbine to rotate, and the torque and speed measuring instrument in the cabin records the corresponding torque parameters and speed parameters. The accelerator is used to set the steady speed and increasing speed of the shaft rotation to drive the generator to generate electricity. The resistive load is connected to the generator in the cabin of the scaled model of the turbine. Multiple currents are output after passing through the load and connected to the converter. The converter outputs constant frequency electric energy to the data acquisition and analysis device through voltage conversion and current control. Through data acquisition and analysis, the data is obtained through computer output to complete the experimental task.

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