Method and device for combined power generation of wind energy and water energy

Abstract

The invention provides a wind energy and water energy combined power generation method and device. The wind energy and water energy combined power generation method comprises the steps that whether the first rotating direction of a water energy transmission system is consistent with the second rotating direction of a wind energy transmission system or not is judged; selecting a power generation mode based on a judgment result; when the first rotating direction is consistent with the second rotating direction, the water energy transmission system and the wind energy transmission system share the power generation system for combined power generation; and when the first rotating direction is inconsistent with the second rotating direction, the water energy transmission system independently generates power through the power generation system. The power generation mode is determined by judging the first rotating direction of the water energy transmission system and the second rotating direction of the wind energy transmission system. And when the rotation directions are consistent, a combined power generation mode is started to improve the overall energy conversion efficiency. When the rotation directions are inconsistent, the water energy transmission system independently generates power, interference caused by different rotation directions of the wind energy transmission system and the water energy transmission system is avoided, and the overall service life of the equipment is prolonged.

Description

Technical Field

[0001] The present disclosure relates to the field of new energy technology, and in particular to a method and device for composite power generation of wind energy and water energy. Background Art

[0002] With the rapid development of the global economy and the continuous growth of energy demand, traditional energy is facing the crisis of depletion, and the environmental pollution caused by its use is becoming increasingly serious. The development and utilization of new energy has become the focus of global attention. Among them, wind energy and hydropower are two representative forms of new energy.

[0003] In the existing energy utilization technology, wind power generation and hydropower generation operate as two independent systems. The wind power generation system relies on wind turbines to convert wind energy into mechanical energy through wind turbines, and then convert mechanical energy into electrical energy through generators. Its operation process depends on the local wind resource conditions. The hydropower generation system uses turbines to convert water flow energy into mechanical energy, and then converts it into electrical energy through generators. Its operation is limited by conditions such as water flow and water level.

[0004] However, when implementing the present invention, the inventors found that due to the uneven temporal and spatial distribution of wind and water resources, a single wind power generation system or a single water power generation system cannot fully utilize local resources; if both are set up at the same time, the cost will increase. Summary of the invention

[0005] A technical problem to be solved by the present disclosure is: how to realize the combined power generation of wind power generation system and water power generation system to fully utilize resources while reducing costs.

[0006] In order to solve the above technical problems, the present disclosure provides a method for combined power generation of wind energy and water energy in a first aspect, comprising:

[0007] Determining whether the first rotation direction of the water power transmission system is consistent with the second rotation direction of the wind power transmission system;

[0008] Selecting a power generation mode based on the judgment result;

[0009] When the first rotation direction and the second rotation direction are consistent, the water power transmission system and the wind power transmission system share a power generation system to jointly generate electricity;

[0010] When the first rotation direction and the second rotation direction are inconsistent, the water power transmission system generates electricity alone through the power generation system.

[0011] In some embodiments, before determining whether the first rotation direction of the water power transmission system is consistent with the second rotation direction of the wind power transmission system, the method further includes:

[0012] Pre-storing a standard rotation direction of the water power transmission system as a first rotation direction;

[0013] A second rotation direction of the wind energy transmission system is obtained.

[0014] In some embodiments, before selecting the power generation mode based on the judgment result, the method further includes:

[0015] Get the hydraulic speed n of the hydraulic transmission system 水 ;

[0016] Get the wind speed n of the wind energy transmission system 风 ;

[0017] The power generation mode selected based on the judgment results includes:

[0018] Based on the judgment result, hydraulic speed n 水 and wind speed n 风 Select the power generation mode.

[0019] In some embodiments, based on the judgment result, the hydraulic speed n 水 and wind speed n 风 Methods for selecting power generation mode include:

[0020] When the first rotation direction and the second rotation direction are consistent, based on the hydraulic speed n 水 Adjust wind speed n 风 , so that the hydraulic speed n 水 With wind speed n 风 Match.

[0021] In some embodiments, based on the judgment result, the hydraulic speed n 水 and wind speed n 风 Methods for selecting power generation mode include:

[0022] When the first rotation direction and the second rotation direction are inconsistent, according to the hydraulic speed n 水 and wind speed n 风 Select the power generation mode based on the relationship:

[0023] When n 水 -n 风 When ≥0, the hydropower transmission system generates electricity through the power generation system alone;

[0024] When n 水 -n 风 <0, and n 水 ≥n 水min When the hydropower transmission system generates electricity through the power generation system alone; where n 水min The minimum speed set for the water power transmission system;

[0025] When n水 -n 风 <0, and n 水 <n 水min When the water power transmission system and the wind power transmission system share the power generation system to generate electricity together.

[0026] In some embodiments, the method for selecting a power generation mode based on the judgment result includes:

[0027] When the first rotation direction and the second rotation direction are inconsistent and exceed a preset time, the water power transmission system generates electricity alone through the power generation system;

[0028] When the first rotation direction is inconsistent with the second rotation direction and is less than or equal to a preset time, the water power transmission system and the wind power transmission system share a power generation system to jointly generate electricity.

[0029] In some embodiments, after the water power transmission system generates electricity through the power generation system alone, it also includes:

[0030] acquiring a first rotation direction in real time;

[0031] Determining whether the first rotation direction is consistent with the second rotation direction;

[0032] When the first rotation direction and the second rotation direction are consistent, the wind energy transmission system and the water energy transmission system are automatically started, and joint power generation is performed through the power generation system.

[0033] A second aspect of the present disclosure provides a device for combined power generation of wind energy and water energy, comprising:

[0034] frame;

[0035] A wind energy transmission system is arranged on the frame;

[0036] A water power transmission system is arranged on the frame;

[0037] A wind direction sensor is arranged on the frame; the wind direction sensor is used to detect the rotation direction of the wind energy transmission system: when the wind direction sensor detects a positive wind direction, it can generate a first signal state A; when the wind direction sensor detects a reverse wind direction, it can generate a first signal state B;

[0038] A power generation system connected to a drive shaft of the water power transmission system;

[0039] A first bevel gear is sleeved on the driving shaft;

[0040] The second bevel gear is sleeved on the transmission shaft of the wind energy transmission system, and the first bevel gear is meshed with the second bevel gear;

[0041] A linear actuator is connected to the frame and the driving shaft respectively, and the linear actuator is connected to a wind direction sensor signal;

[0042] The linear actuator can drive the drive shaft to move in a vertical direction in response to the first signal state B, so that the first bevel gear and the second bevel gear are spaced apart.

[0043] In some embodiments, it also includes:

[0044] A first photoelectric sensor is arranged on the frame and is respectively connected to the linear actuator and the turbine signal of the water power transmission system; the first bevel gear is provided with a first identification part, and the first photoelectric sensor can detect the first identification part and generate a second signal;

[0045] The driving member is connected to the frame and the transmission shaft respectively; and is connected to the wind direction sensor signal;

[0046] A second photoelectric sensor is arranged on the frame and is respectively connected to the linear actuator and the driving member by signal; the second bevel gear is provided with a second identification part, and the second photoelectric sensor can detect the second identification part and generate a third signal;

[0047] Among them, the wind energy transmission system can stop working in response to the first signal state B; when the first bevel gear and the second bevel gear are in the interval state, the driving member can drive the transmission shaft to rotate around the vertical direction in response to the first signal state A, and the driving member can stop working in response to the third signal; the turbine can stop working in response to the first signal state A and the second signal; the linear actuator can drive the driving shaft to move in the opposite direction of the vertical direction in response to the first signal state A, the second signal and the third signal to engage the first bevel gear and the second bevel gear, the second photoelectric sensor can detect the first identification part and generate the fifth signal, and the wind energy transmission system and the water energy transmission system restart in response to the fifth signal.

[0048] In some embodiments, it also includes:

[0049] The bearing member is connected to the linear actuator; the bearing member is slidably connected to the frame along the vertical direction; the bearing member is connected to the power generation system;

[0050] The bearing is sleeved on the driving shaft; the bearing is connected to the bearing member.

[0051] Compared with the prior art, the present disclosure provides a method for combined power generation of wind energy and water energy, which determines the power generation mode by judging the first rotation direction of the water energy transmission system and the second rotation direction of the wind energy transmission system.

[0052] When the two rotate in the same direction, the joint power generation mode is turned on. In this mode, the two energy sources form a synergistic effect at the same time and in the same area. The synergy of wind energy and water energy enables the power generation system to obtain sufficient and stable power sources, thereby improving the overall energy conversion efficiency. At the same time, since the joint power generation shares a power generation system, this is different from the existing technology of setting up independent wind and water power generation systems, which effectively avoids the duplication of power generation systems and effectively reduces equipment costs and related site occupation costs.

[0053] When the rotation directions are inconsistent, the water power transmission system generates electricity separately through the same power generation system, avoiding the interference problem caused by the different rotation directions of the wind power transmission system and the water power transmission system. It greatly reduces the equipment wear and maintenance times caused by system incoordination, extends the overall service life of the equipment, and reduces the operating cost of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0055] Figure 1 It is a schematic diagram of the structure of the device for combined power generation of wind energy and water energy disclosed in Example 2 of the present disclosure.

[0056] Description of reference numerals:

[0057] 1. Frame; 2. Wind energy transmission system; 21. Rotating shaft; 22. Wind wheel; 23. Third bevel gear; 24. Transmission shaft; 25. Fourth bevel gear; 3. Water energy transmission system; 31. Drive shaft; 32. Water turbine; 4. Wind direction sensor; 5. Power generation system; 6. First bevel gear; 7. Second bevel gear; 8. Linear actuator; 9. First photoelectric sensor; 10. Driving member; 11. Second photoelectric sensor; 12. Bearing member; 13. Bearing. DETAILED DESCRIPTION

[0058] The following is a further detailed description of the embodiments of the present disclosure in conjunction with the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to exemplarily illustrate the principles of the present disclosure, but cannot be used to limit the scope of the present disclosure. The present disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

[0059] The present disclosure provides these embodiments to make the present disclosure thorough and complete, and to fully express the scope of the present disclosure to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary, and not as limiting.

[0060] It should be noted that, in the description of the present disclosure, unless otherwise specified, the meaning of "multiple" is greater than or equal to two; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the orientation or positional relationship, are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0061] In addition, the words "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different parts. "Vertical" does not mean vertical in the strict sense, but is within the tolerance range. "Parallel" does not mean parallel in the strict sense, but is within the tolerance range. "Include" or "comprising" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements.

[0062] It should also be noted that in the description of the present disclosure, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0063] All terms used in the present disclosure have the same meanings as those understood by those of ordinary skill in the art to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, for example, should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined as such herein.

[0064] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0065] Wind energy is an inexhaustible clean energy source, and its energy source is the kinetic energy generated by atmospheric movement. Hydropower uses the energy of water flow to generate electricity, and rivers, lakes and seas contain huge hydropower potential. Through reasonable development and utilization, wind energy and hydropower can provide a large amount of electricity for human society and occupy an important position in the transformation of energy structure.

[0066] In the prior art, since the wind direction changes when the wind power generation system is working, the wind power generation system and the hydropower generation system are used as two independent systems to generate electricity. If only one of the two is set, the resources cannot be fully utilized; if one is set for each, the cost is increased.

[0067] After in-depth research, the inventor discovered that the power supply mode can be selected by judging the rotation direction of the water power transmission system and the wind power transmission system. When the rotation directions are the same, the two share a power generation system to improve resource utilization and reduce costs. When the rotation directions are different, power generation is achieved through the water power transmission system and the power generation system to avoid interference between the two and extend the service life of the equipment.

[0068] Example 1

[0069] Embodiment 1 of the present application provides a method for combined power generation of wind energy and water energy, comprising:

[0070] Determining whether the first rotation direction of the water power transmission system is consistent with the second rotation direction of the wind power transmission system;

[0071] Selecting a power generation mode based on the judgment result;

[0072] When the first rotation direction and the second rotation direction are consistent, the water power transmission system and the wind power transmission system share a power generation system to jointly generate electricity;

[0073] When the first rotation direction and the second rotation direction are inconsistent, the water power transmission system generates electricity alone through the power generation system.

[0074] First, a composite power generation device including a water power transmission system, a wind power transmission system and a power generation system is constructed. The specific structure of the composite power generation device is shown in Example 2.

[0075] Then, a direction sensor can be installed on the rotating parts of the water power transmission system and the wind power transmission system, and the first rotation direction can be obtained through the direction sensor. For example, a Hall effect sensor or a photoelectric sensor can be used. The rotation direction data collected by the direction sensor can be transmitted to the central control system through a signal line.

[0076] In some embodiments, before determining whether the first rotation direction of the water power transmission system is consistent with the second rotation direction of the wind power transmission system, the method further includes:

[0077] Pre-storing a standard rotation direction of the water power transmission system as a first rotation direction;

[0078] A second rotation direction of the wind energy transmission system is obtained.

[0079] Since the first rotation direction of the water power transmission system has high stability after installation, the standard rotation direction of the water power transmission system can be determined by manual setting during the initialization stage of the composite device, and the standard rotation direction is stored in the memory of the central control system as the first rotation direction. A wind direction sensor can be set on the composite device, and the wind direction sensor can collect the rotation direction data of the wind power transmission system in real time and transmit it to the central control system through a signal line.

[0080] After receiving the rotation direction data from the water power transmission system and the wind power transmission system, the central control system makes a comparison and judgment. By programming a special judgment algorithm, it is determined whether the first rotation direction and the second rotation direction are consistent. The algorithm can judge the consistency of the direction based on a simple positive and negative direction setting (such as stipulating that clockwise is positive and counterclockwise is negative). The central control system can be the control system of the water power transmission system, the control system of the wind power transmission system, or an independent central control system.

[0081] After the central control system determines that the first rotation direction and the second rotation direction are consistent, the central control system sends a command to the water power transmission system and the wind power transmission system, so that they share the power generation system to jointly generate electricity. After the central control system determines that the first rotation direction and the second rotation direction are inconsistent, the central control system sends a command to separate the water power transmission system and the wind power transmission system, and then separate the wind power transmission system and the power generation system. At this time, the power generation system only receives power from the water power transmission system and generates electricity alone.

[0082] Compared with the prior art, the method for combined power generation of wind energy and water energy provided in Example 1 of the present disclosure determines the power generation mode by judging the first rotation direction of the water energy transmission system and the second rotation direction of the wind energy transmission system.

[0083] When the two rotate in the same direction, the joint power generation mode is turned on. In this mode, the two energy sources form a synergistic effect at the same time and in the same area. The synergy of wind energy and water energy enables the power generation system to obtain sufficient and stable power sources, thereby improving the overall energy conversion efficiency. At the same time, since the joint power generation shares a power generation system, this is different from the existing technology of setting up independent wind and water power generation systems, which effectively avoids the duplication of power generation systems and effectively reduces equipment costs and related site occupation costs.

[0084] When the rotation directions are inconsistent, the water power transmission system generates electricity separately through the same power generation system, avoiding the interference problem caused by the different rotation directions of the wind power transmission system and the water power transmission system. It greatly reduces the equipment wear and maintenance times caused by system incoordination, extends the overall service life of the equipment, and reduces the operating cost of the equipment.

[0085] In some embodiments, before selecting the power generation mode based on the judgment result, the method further includes:

[0086] Get the hydraulic speed n of the hydraulic transmission system 水 ;

[0087] Get the wind speed n of the wind energy transmission system 风 ;

[0088] The power generation mode selected based on the judgment results includes:

[0089] Based on the judgment result, hydraulic speed n 水 and wind speed n 风 Select the power generation mode.

[0090] Specifically, a speed sensor can be installed on the rotating parts of the water power transmission system to detect the speed of the water power transmission system. A speed sensor can be installed on the rotating parts of the wind power transmission system to detect the speed of the wind power transmission system. The speed sensor collects the speed data of the water power and wind power transmission systems in real time and transmits it to the central control system through the signal line. By comprehensively considering the wind direction, water power speed n 水 and wind speed n 风 , the central control system can select the power generation mode more accurately, thereby improving power generation efficiency.

[0091] In some embodiments, based on the judgment result, the hydraulic speed n 水 and wind speed n 风 Methods for selecting power generation mode include:

[0092] When the first rotation direction and the second rotation direction are consistent, based on the hydraulic speed n 水 Adjust wind speed n 风 , so that the hydraulic speed n 水 With wind speed n 风 Match.

[0093] Specifically, if the central control system determines that the first rotation direction and the second rotation direction are consistent, the hydraulic speed n is further considered. 水 and wind speed n 风 .

[0094] Set the speed difference threshold Δ in the central control system n阈值 , calculate the speed difference Δ according to the formula n=|n 水 -n 风 ∣. If Δ n >Δ n阈值 The central control system sends instructions to the variable pitch controller or blade angle regulator of the wind power transmission system to adjust the wind speed n 风 :If n 风 Lower than n 水 , the wind speed n can be increased by reducing the blade angle or increasing the blade attack angle 风 , so that the two speeds match; if n 风 Higher than n 水 , the wind speed n can be reduced by increasing the blade angle or reducing the blade attack angle 风 , so that the two speeds match. n ≤Δ n阈值 , at this time the hydraulic speed n 水 With wind speed n 风 Match, no need to adjust wind speed n 风 At this time, the speed of the two transmission systems is kept within a reasonable range, and the power of the two systems can be effectively combined, reducing additional stress and wear on mechanical components, extending the service life of the equipment, and ensuring that the system operates in the best working condition.

[0095] In some embodiments, based on the judgment result, the hydraulic speed n 水 and wind speed n 风 Methods for selecting power generation mode include:

[0096] When the first rotation direction and the second rotation direction are inconsistent, according to the hydraulic speed n 水 and wind speed n 风 Select the power generation mode based on the relationship:

[0097] When n 水 -n 风 When ≥0, the hydropower transmission system generates electricity through the power generation system alone;

[0098] When n 水 -n 风 <0, and n 水 ≥n 水min When the hydropower transmission system generates electricity through the power generation system alone; where n 水min The minimum speed set for the water power transmission system;

[0099] When n 水 -n 风 <0, and n 水 <n 水min When the water power transmission system and the wind power transmission system share the power generation system to generate electricity together.

[0100] Specifically, when n 水 -n 风 ≥0, the central control system sends a command to separate the water power transmission system and the wind power transmission system, and then separate the wind power transmission system and the power generation system. At this time, the power generation system only receives the power of the water power transmission system and generates electricity alone. 水 -n 风 <0, and n 水 ≥n 水min When n , the central control system sends a command to separate the water power transmission system from the wind power transmission system, and then separate the wind power transmission system from the power generation system. At this time, the power generation system only receives the power of the water power transmission system and generates electricity alone. 水 -n 风 <0, and n 水 <n 水min When the central control system sends instructions to the water power transmission system and the wind power transmission system, they share the power generation system to generate electricity together. This ensures that the wind and water power composite power generation system selects the appropriate power generation mode under different rotation directions and speed conditions, thereby improving the overall efficiency and stability of the system.

[0101] In some embodiments, the method for selecting a power generation mode based on the judgment result includes:

[0102] When the first rotation direction and the second rotation direction are inconsistent and exceed a preset time, the water power transmission system generates electricity alone through the power generation system;

[0103] When the first rotation direction is inconsistent with the second rotation direction and is less than or equal to a preset time, the water power transmission system and the wind power transmission system share a power generation system to jointly generate electricity.

[0104] Specifically, when the time when the first rotation direction and the second rotation direction are inconsistent exceeds the preset time, it means that the inconsistency is long-term. At this time, the water power transmission system can generate electricity alone to avoid interference between the two and improve the power generation efficiency. When the time when the first rotation direction and the second rotation direction are inconsistent is short, it means that the inconsistency is temporary. At this time, the water power transmission system and the wind power transmission system share the power generation system and jointly generate electricity, which can make full use of the two energy sources, achieve stable power generation, and improve the overall power generation efficiency of the system. It ensures that the composite power generation system of wind energy and water energy selects the appropriate power generation mode under different rotation directions and time conditions, thereby improving the overall efficiency and stability of the system. The preset time can be adjusted according to factors such as historical data, system response time and equipment characteristics.

[0105] In addition, the appropriate power generation mode can be selected under different rotation directions, speed conditions and time conditions.

[0106] In some embodiments, after the water power transmission system generates electricity through the power generation system alone, it also includes:

[0107] acquiring a first rotation direction in real time;

[0108] Determining whether the first rotation direction is consistent with the second rotation direction;

[0109] When the first rotation direction and the second rotation direction are consistent, the wind energy transmission system and the water energy transmission system are automatically started, and joint power generation is performed through the power generation system.

[0110] Specifically, if the central control system determines that the first rotation direction is consistent with the second rotation direction, it means that the rotation directions of the two systems have been restored to synchronization. At this time, the central control system sends a command to automatically start the wind power transmission system and the water power transmission system, so that they can jointly generate electricity through the same power generation system, so as to make full use of the two energy sources and achieve stable power generation through resource complementarity.

[0111] Example 2

[0112] like Figure 1 As shown, Embodiment 2 of the present application provides a device for combined power generation of wind energy and water energy, comprising:

[0113] Rack 1;

[0114] A wind energy transmission system 2 is arranged on the frame 1;

[0115] A water power transmission system 3 is arranged on the frame 1;

[0116] The wind direction sensor 4 is arranged on the frame 1; the wind direction sensor 4 is used to detect the rotation direction of the wind energy transmission system 2: when the wind direction sensor 4 detects the positive wind direction, it can generate a first signal state A; when the wind direction sensor 4 detects the reverse wind direction, it can generate a first signal state B;

[0117] The power generation system 5 is connected to the driving shaft 31 of the water power transmission system 3;

[0118] The first bevel gear 6 is sleeved on the driving shaft 31;

[0119] The second bevel gear 7 is sleeved on the transmission shaft 24 of the wind energy transmission system 2, and the first bevel gear 6 is meshed with the second bevel gear 7;

[0120] The linear actuator 8 is connected to the frame 1 and the driving shaft 31 respectively, and the linear actuator 8 is connected to the wind direction sensor 4 signal;

[0121] The linear actuator 8 can drive the drive shaft 31 to move in the vertical direction in response to the first signal state B, so as to space the first bevel gear 6 and the second bevel gear 7 apart.

[0122] The device for combined power generation of wind energy and water energy in Example 2 of the present application is suitable for coastal areas with abundant wind energy resources and water energy resources.

[0123] The frame 1 serves as the basic supporting structure of the entire power generation device, ensuring that all components are firmly installed and providing necessary protection for the device. The frame 1 can be made of high-strength materials (such as steel or aluminum alloy).

[0124] The wind energy transmission system 2 is used to capture wind energy and convert it into mechanical energy. The wind energy transmission system 2 may include a rotating shaft 21, a wind rotor 22, a third bevel gear 23, a transmission shaft 24 and a fourth bevel gear 25. The length direction of the rotating shaft 21 is the first horizontal direction, and the rotating shaft 21 is connected to the frame 1 for rotation around the first horizontal direction. The frame 1 has a receiving space, and the wind rotor 22 is installed at the first end of the rotating shaft 21. The third bevel gear 23, the fourth bevel gear 25 and the transmission shaft 24 are all located in the receiving space, and the third bevel gear 23 is sleeved on the second end of the rotating shaft 21. The transmission shaft 24 is connected to the frame 1 for rotation around the vertical direction, the fourth bevel gear 25 is sleeved on the transmission shaft 24, and the third bevel gear 23 is meshed with the fourth bevel gear 25. The wind rotor 22 captures wind energy on the outside and converts the wind energy into a rotational motion of the rotating shaft 21 around the first horizontal direction. The meshing of the third bevel gear 23 and the fourth bevel gear 25 can convert the rotational motion of the rotating shaft 21 around the first horizontal direction into the rotational motion of the transmission shaft 24 around the vertical direction. The power transmission from the horizontal direction to the vertical direction is realized to optimize the spatial layout. An encoder can also be configured on the wind wheel 22 to obtain the rotation speed of the wind wheel 22.

[0125] The water power transmission system 3 can generate mechanical energy by using the power of water flow. The water power transmission system 3 may include a drive shaft 31 and a water turbine 32, wherein the length direction of the drive shaft 31 is consistent with the first horizontal direction, and the drive shaft 31 and the rotating shaft 21 are arranged at intervals in the vertical direction. The drive shaft 31 is connected to the frame 1 for rotation around the first horizontal direction, and the water turbine 32 and the power generation system 5 are both located outside the accommodating space, and the water turbine 32 and the power generation system 5 are respectively connected to the two ends of the drive shaft 31. The first bevel gear 6 and the second bevel gear 7 are both located inside the accommodating space, and can convert the rotational motion of the transmission shaft 24 around the vertical direction into the rotational motion of the drive shaft 31 around the first horizontal direction. Power transmission from the vertical direction to the first horizontal direction is realized. The water turbine 32 can also be equipped with an encoder to obtain the rotation speed of the water turbine 32.

[0126] The wind direction sensor 4 is used to monitor the wind direction to reflect the current rotation direction of the wind wheel 22 of the wind energy transmission system 2 and help adjust the power generation mode of the composite power generation device. The wind direction sensor 4 can be obtained through market procurement.

[0127] The power generation system 5 is used to convert mechanical energy into electrical energy. The power generation system 5 may include a generator and a battery module. The generator may be a permanent magnet synchronous generator, an asynchronous generator or a DC generator. The battery module is used to store the electrical energy generated by the generator. The battery module may be a lithium-ion battery, a lead-acid battery or other types of energy storage batteries. The battery module can provide stable power output when the generator is not working or when the power demand is at a peak.

[0128] The linear actuator 8 can be actuated according to the signal of the wind direction sensor 4, and the drive shaft 31 moves in the vertical direction. The linear actuator 8 can be a linear motor or a hydraulic cylinder. When the linear actuator 8 receives the first signal state B sent by the wind direction sensor 4, the linear actuator 8 will push the drive shaft 31 to move, so that the two bevel gears are out of contact, so as to disconnect the connection between the wind energy transmission system 2 and the power generation system 5, and then generate electricity through the water energy transmission system 3. The number of linear actuators 8 can be one or more. When the number of linear actuators 8 is more than one, the multiple linear actuators 8 can be arranged at intervals along the first horizontal direction.

[0129] The device for composite power generation of wind energy and water energy in Example 2 of the present application combines two renewable energy sources, wind energy and water energy, and captures wind energy and water energy respectively through the wind energy transmission system 2 and the water energy transmission system 3, and converts them into mechanical energy, making full use of the abundant wind energy and water energy resources in coastal areas, and improving energy utilization efficiency. The wind direction sensor 4 can detect the change of wind direction. When positive wind is detected, the first signal state A is generated, the first bevel gear 6 and the second bevel gear 7 remain meshed, and the vertical rotational motion is converted into the horizontal rotational motion, so that the wind energy transmission system 2 and the water energy transmission system 3 share a power generation system 5 for power generation, making the power generation more stable and significantly improving the power generation efficiency. When reverse wind is detected, the first signal state B is generated, and the linear actuator 8 drives the drive shaft 31 in the vertical direction based on the first signal state B, so that the first bevel gear 6 and the second bevel gear 7 are spaced apart, disconnecting the wind energy transmission system 2 from the power generation system 5, avoiding interference caused by reverse wind, extending the service life of the device, and ensuring the long-term and efficient operation of the device.

[0130] The frame 1 can be provided with an observation window for observing the first bevel gear 6 and the second bevel gear 7. Each tooth of the first bevel gear 6 can be provided with a mark to distinguish each other (such as a color code or a digital mark), and each tooth of the second bevel gear 7 can be provided with a mark to distinguish each other (such as a color code or a digital mark). When the wind direction sensor 4 detects a positive wind, the wind energy transmission system 2 and the hydropower generation system 5 can be manually shut down to stop both of them from rotating. At the same time, the power generation system 5 is shut down to ensure safe operation. The linear actuator 8 can be slowly controlled to push the drive shaft 31 to move in the vertical direction toward the second bevel gear 7. In this process, the drive shaft 31 can be slowly rotated by visually observing the marks on the two bevel gears to ensure that the first bevel gear 6 and the second bevel gear 7 are re-engaged. Among them, the wind wheel 22 can be provided with a braking device or a braking system to lock the wind wheel 22 in a stationary position to prevent the wind wheel 22 from accidentally rotating during manual operation. The water turbine 32 can be closed by closing the water inlet gate of the water turbine 32 to prevent the drive shaft 31 from accidentally rotating during manual operation.

[0131] In order to realize the automatic re-engagement of the first bevel gear 6 and the second bevel gear 7, as shown in FIG. Figure 1 As shown, in some embodiments, it also includes:

[0132] The first photoelectric sensor 9 is arranged on the frame 1 and is respectively connected to the linear actuator 8 and the turbine 32 of the water power transmission system 3 by signals; the first bevel gear 6 is provided with a first identification part, and the first photoelectric sensor 9 can detect the first identification part and generate a second signal;

[0133] The driving member 10 is connected to the frame 1 and the transmission shaft 24 respectively; and is connected to the wind direction sensor 4 by signal;

[0134] The second photoelectric sensor 11 is disposed on the frame 1 and is respectively connected to the linear actuator 8 and the driving member 10 by signals; the second bevel gear 7 is provided with a second identification portion, and the second photoelectric sensor 11 can detect the second identification portion and generate a third signal;

[0135] Among them, the wind energy transmission system 2 can stop working in response to the first signal state B; when the first bevel gear 6 and the second bevel gear 7 are in the interval state, the driving member 10 can drive the transmission shaft 24 to rotate around the vertical direction in response to the first signal state A, and the driving member 10 can stop working in response to the third signal; the turbine 32 can stop working in response to the first signal state A and the second signal; the linear actuator 8 can drive the driving shaft 31 to move in the opposite direction of the vertical direction in response to the first signal state A, the second signal and the third signal, so that the first bevel gear 6 and the second bevel gear 7 are engaged, the second photoelectric sensor 11 can detect the first identification part and generate a fifth signal, and the wind energy transmission system 2 and the water energy transmission system 3 restart in response to the fifth signal.

[0136] In some embodiments, it also includes:

[0137] The bearing member 12 is connected to the linear actuator 8; the bearing member 12 is slidably connected to the frame 1 along the vertical direction; the bearing member 12 is connected to the power generation system 5;

[0138] The bearing 13 is sleeved on the driving shaft 31 ; the bearing 13 is connected to the bearing member 12 .

[0139] The first photoelectric sensor 9 may be a through-beam photoelectric sensor, in which case the first identification portion may be a reflective plate or a light shielding sheet, and the detection end of the first sensor faces the first bevel gear 6. Alternatively, the first photoelectric sensor 9 may be a reflective photoelectric sensor, etc. The selection of the second photoelectric sensor 11 may refer to the first photoelectric sensor 9.

[0140] The driving member 10 is responsible for driving the transmission shaft 24 to rotate in the vertical direction after the first bevel gear 6 and the second bevel gear 7 are spaced apart and when the wind direction sensor 4 detects positive wind again, so as to ensure that the first bevel gear 6 and the second bevel gear 7 can be accurately aligned and re-engaged.

[0141] The working process of the combined power generation device of wind energy and water energy is as follows:

[0142] When the wind direction sensor 4 detects adverse wind, it generates a first signal state B, and the wind energy transmission system 2 stops working in response to the first signal state B. In response to the first signal state B, the linear actuator 8 drives the drive shaft 31 to move in the vertical direction, so that the first bevel gear 6 and the second bevel gear 7 are spaced apart.

[0143] When the wind direction sensor 4 detects the positive wind, it generates the first signal state A. First, adjust the second bevel gear 7: the driving member 10 drives the transmission shaft 24 to rotate around the vertical direction in response to the first signal state A. The second photoelectric sensor 11 detects the second identification part on the second bevel gear 7 and generates a third signal. The driving member 10 stops working in response to the third signal to ensure that the first bevel gear 6 and the second bevel gear 7 are aligned. Second, stop the turbine 32: the first photoelectric sensor 9 detects the first identification part on the first bevel gear 6 and generates a second signal. The turbine 32 stops working in response to the first signal state A and the second signal. Third, reset the drive shaft 31: the linear actuator 8 drives the drive shaft 31 to move in the opposite direction of the vertical direction in response to the first signal state A, the second signal and the third signal, so that the first bevel gear 6 and the second bevel gear 7 re-engage. The second photoelectric sensor 11 detects the first identification part on the first bevel gear 6 and generates a fifth signal. Fourth, restart the system: the wind power transmission system 2 and the water power transmission system 3 restart in response to the fifth signal.

[0144] So far, various embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0145] Although some specific embodiments of the present disclosure have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present disclosure. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict.

Claims

1. A method for combined power generation of wind energy and water energy, characterized in that: include: Determining whether the first rotation direction of the water power transmission system (3) is consistent with the second rotation direction of the wind power transmission system (2); Selecting a power generation mode based on the judgment result; When the first rotation direction and the second rotation direction are consistent, the water power transmission system (3) and the wind power transmission system (2) share a power generation system (5) to jointly generate electricity; When the first rotation direction and the second rotation direction are inconsistent, the water power transmission system (3) generates electricity alone through the power generation system (5).

2. The method for combined power generation of wind energy and water energy according to claim 1, characterized in that: Before determining whether the first rotation direction of the water power transmission system (3) is consistent with the second rotation direction of the wind power transmission system (2), the method further includes: Pre-storing a standard rotation direction of the water power transmission system (3) as the first rotation direction; The second rotation direction of the wind energy transmission system (2) is obtained.

3. The method for combined power generation of wind energy and water energy according to claim 1, characterized in that: Before selecting the power generation mode based on the judgment result, the method further includes: Obtain the hydraulic speed n of the hydraulic transmission system (3) 水 ; Obtain the wind speed n of the wind energy transmission system (2) 风 ; The selecting of the power generation mode based on the judgment result includes: Based on the judgment result, the hydraulic speed n 水 and the wind speed n 风 The power generation mode is selected.

4. The method for combined power generation of wind energy and water energy according to claim 3, characterized in that: Based on the judgment result, the hydraulic speed n 水 and the wind speed n 风 Methods for selecting power generation mode include: When the first rotation direction and the second rotation direction are consistent, based on the hydraulic speed n 水 Adjust the wind speed n 风 , so that the hydraulic speed n 水 With the wind speed n 风 Match.

5. The method for combined power generation of wind energy and water energy according to claim 3, characterized in that: Based on the judgment result, the hydraulic speed n 水 and the wind speed n 风 Methods for selecting power generation mode include: When the first rotation direction and the second rotation direction are inconsistent, according to the hydraulic speed n 水 and the wind speed n 风 The power generation mode is selected according to the relationship: When n 水 -n 风 ≥0, the water power transmission system (3) generates electricity through the power generation system (5) alone; When n 水 -n 风 <0, and n 水 ≥n 水min When the water power transmission system (3) generates electricity, the power generation system (5) generates electricity alone; wherein n 水min a minimum value of the rotational speed set for the water power transmission system (3); When n 水 -n 风 <0, and n 水 <n 水min When the water power transmission system (3) and the wind power transmission system (2) share the power generation system (5) to jointly generate electricity.

6. The method for combined power generation of wind energy and water energy according to claim 1, characterized in that: The method for selecting a power generation mode based on a judgment result includes: When the first rotation direction and the second rotation direction are inconsistent and exceed a preset time, the water power transmission system (3) generates electricity alone through the power generation system (5); When the first rotation direction and the second rotation direction are inconsistent and are less than or equal to a preset time, the water power transmission system (3) and the wind power transmission system (2) share the power generation system (5) to jointly generate electricity.

7. The method for combined power generation of wind energy and water energy according to claim 1, characterized in that: After the water power transmission system (3) generates electricity independently through the power generation system (5), the following further comprises: acquiring the first rotation direction in real time; determining whether the first rotation direction is consistent with the second rotation direction; When the first rotation direction and the second rotation direction are consistent, the wind energy transmission system (2) and the water energy transmission system (3) are automatically started, and joint power generation is performed through the power generation system (5).

8. A device for combined power generation of wind energy and water energy, characterized in that: include: Rack (1); A wind energy transmission system (2) is arranged on the frame (1); A water power transmission system (3) is arranged on the frame (1); A wind direction sensor (4) is arranged on the frame (1); the wind direction sensor (4) is used to detect the rotation direction of the wind energy transmission system (2); when the wind direction sensor (4) detects a positive wind direction, it can generate a first signal state A; when the wind direction sensor (4) detects a reverse wind direction, it can generate a first signal state B; A power generation system (5) connected to a drive shaft (31) of the water power transmission system (3); A first bevel gear (6) sleeved on the driving shaft (31); a second bevel gear (7) sleeved on a transmission shaft (24) of the wind energy transmission system (2), the first bevel gear (6) meshing with the second bevel gear (7); A linear actuator (8) is connected to the frame (1) and the drive shaft (31) respectively, and the linear actuator (8) is connected to the wind direction sensor (4) for signal transmission; The linear actuator (8) is capable of driving the drive shaft (31) to move in a vertical direction in response to the first signal state B, so as to space the first bevel gear (6) and the second bevel gear (7).

9. The device for combined power generation of wind energy and water energy according to claim 8, characterized in that: Also includes: a first photoelectric sensor (9) disposed on the frame (1) and connected to the linear actuator (8) and the turbine (32) of the water power transmission system (3) by signals; the first bevel gear (6) is provided with a first identification portion, and the first photoelectric sensor (9) is capable of detecting the first identification portion and generating a second signal; A driving member (10) is connected to the frame (1) and the transmission shaft (24) respectively; and is signal-connected to the wind direction sensor (4); a second photoelectric sensor (11), arranged on the frame (1), and connected to the linear actuator (8) and the driving member (10) by signals respectively; the second bevel gear (7) is provided with a second identification portion, and the second photoelectric sensor (11) is capable of detecting the second identification portion and generating a third signal; The wind energy transmission system (2) is capable of stopping working in response to the first signal state B; when the first bevel gear (6) and the second bevel gear (7) are in an interval state, the driving member (10) is capable of driving the transmission shaft (24) to rotate around the vertical direction in response to the first signal state A, and the driving member (10) is capable of stopping working in response to the third signal; the water turbine (32) is capable of stopping working in response to the first signal state A and the second signal; the linear actuator (8) is capable of driving the driving shaft (31) to move in the opposite direction of the vertical direction in response to the first signal state A, the second signal and the third signal, so that the first bevel gear (6) and the second bevel gear (7) are meshed, the second photoelectric sensor (11) is capable of detecting the first identification part and generating a fifth signal, and the wind energy transmission system (2) and the water energy transmission system (3) are restarted in response to the fifth signal.

10. The device for combined power generation of wind energy and water energy according to claim 8, characterized in that: Also includes: A bearing member (12) is connected to the linear actuator (8); the bearing member (12) is slidably connected to the frame (1) along the vertical direction; the bearing member (12) is connected to the power generation system (5); A bearing (13) is sleeved on the driving shaft (31); the bearing (13) is connected to the bearing member (12).

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