CN117189498A - Low-altitude constraint wind power generation system - Google Patents
Low-altitude constraint wind power generation system Download PDFInfo
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- CN117189498A CN117189498A CN202311318941.5A CN202311318941A CN117189498A CN 117189498 A CN117189498 A CN 117189498A CN 202311318941 A CN202311318941 A CN 202311318941A CN 117189498 A CN117189498 A CN 117189498A
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Abstract
The invention discloses a low-altitude constraint wind power generation system, and belongs to the technical field of wind power generation. The low-altitude constraint wind power generation system comprises a power generation platform, wherein at least 2 buoyancy pieces are arranged above the power generation platform, the buoyancy pieces are connected with the power generation platform through connecting ropes, at least 3 traction ropes are arranged below the power generation platform, and the traction ropes are connected with driving equipment; the power generation platform is provided with monitoring equipment, the monitoring equipment is electrically connected with control equipment positioned on the ground, the control equipment is electrically connected with driving equipment, the monitoring equipment comprises an attitude sensor and a wind speed and wind direction sensor, the attitude sensor is used for monitoring the position and the attitude of the power generation platform, the driving equipment is provided with a pull rope sensor for monitoring the length of a pull rope, and the pull rope sensor and the driving equipment are electrically connected with the control equipment. The low-altitude constraint wind power generation system can solve the problems that power generation equipment is unstable and is not easy to control.
Description
Technical Field
The invention relates to the technical field of wind power generation, in particular to a low-altitude constraint wind power generation system.
Background
Currently, people have an increasing demand for energy and are also increasingly pushing forward green energy. Wind energy is a green energy source with great potential, and compared with fossil energy sources such as petroleum, coal and the like, the wind energy is rich in wind energy reserves, clean and renewable, has no pollution to the environment and is more beneficial to the global ecological environment. The sky is a space resource which can be utilized, and the ground resource can be saved to a great extent when the platform is placed in the air, so that the waste of the ground resource is reduced.
With the progress of science and technology and the development of intelligence, the research of an air platform is rapidly developed. In addition to typical unmanned aerial vehicles, unmanned boats, etc., rope tethered aerial platforms have been increasingly studied. The tethered aerial platform is an unpowered aerial platform. The buoyancy and the lifting force are obtained by the gas in the balloon, and the air platform is in a balanced state in the sky by the gravity of the whole body and the pulling force of the rope. Rope tethered aerial platforms have their incomparable advantages over other aerial vehicles. Firstly, the rope mooring aerial platform can stay in the air for a long time; secondly, the rope mooring air platform has lower manufacturing cost and is more beneficial to maintenance; in addition, the rope is tethered with the storage space of the aerial platform to be larger, so that more high-altitude resources can be utilized, the power generation equipment can be conveniently carried, and aerial power generation is realized.
In the prior art related to the aerial power generation system, wind power generation equipment is arranged at a high altitude of more than 1000 meters, although the high altitude wind energy is sufficient, the application of the system is limited by the problem of the space domain using authority, the dead weight of a rope for mooring becomes a problem due to the excessively high altitude, and the whole system is difficult to control. Secondly, in the prior art related to the aerial power generation system, a hoisting device and a rope are mostly used for mooring aerial wind power generation equipment, but complete constraint on the wind power generation equipment is not realized, the equipment can swing along with wind, and the risk is high.
Disclosure of Invention
The invention aims to provide a low-altitude constraint wind power generation system, which solves the problems of unstable power generation equipment and difficult control.
In order to achieve the above purpose, the invention provides a low-altitude constraint wind power generation system, which comprises a power generation platform, wherein at least 2 buoyancy pieces are arranged above the power generation platform, the buoyancy pieces are connected with the power generation platform through connecting ropes, and at least 3 traction ropes are arranged below the power generation platform and connected with driving equipment; the power generation platform is provided with monitoring equipment, the monitoring equipment is electrically connected with control equipment positioned on the ground, the control equipment is electrically connected with driving equipment, the monitoring equipment comprises an attitude sensor and a wind speed and wind direction sensor, the attitude sensor is used for monitoring the position and the attitude of the power generation platform, the driving equipment is provided with a pull rope sensor for monitoring the length of a pull rope, and the pull rope sensor and the driving equipment are electrically connected with the control equipment.
Preferably, the buoyancy member is a balloon or a buoyancy bag, and the inside of the balloon or the buoyancy bag is filled with hydrogen or helium.
Preferably, the connecting rope and the hauling rope are aviation steel wire ropes.
Preferably, the power generation platform comprises a mounting rod, the power generation equipment is fixedly arranged on the mounting rod, a truss is arranged at the top end of the mounting rod, a connecting rope is fixed on the truss, a connecting frame is arranged at the bottom end of the mounting rod, and a traction rope is fixed on the connecting frame.
Preferably, the mounting rod, the truss and the connecting frame are all made of carbon fiber materials.
Preferably, the power generation device is a horizontal axis power generation device or a vertical axis power generation device.
Preferably, the attitude sensor and the wind speed and direction sensor are arranged on the connecting rod, the truss or the connecting frame.
Preferably, the driving device is a winch.
The low-altitude constraint wind power generation system has the advantages and positive effects that:
1. the power generation system provided by the invention has the advantages of simple structure and low cost, and can meet the installation and use requirements of horizontal shaft power generation equipment and vertical shaft power generation equipment.
2. According to the invention, the power generation platform is connected with the driving equipment through at least 3 traction ropes, and the driving equipment corresponds to the traction ropes one by one, so that the controllability of the power generation platform is improved.
3. The invention is at least provided with 2 buoyancy members, the buoyancy members are connected together, and the buoyancy members are respectively connected with the power generation platform through the connecting ropes, so that the stability and the reliability of the power generation platform are improved.
4. Through setting up supervisory equipment on power generation platform, monitor power generation platform's position and state, monitor aerial wind speed wind direction through wind speed and wind direction sensor, stay cord sensor monitors the length of haulage rope to receive and release the haulage rope through control equipment control drive arrangement, and then adjust power generation platform's position and gesture, be favorable to improving power generation system's generating efficiency.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
FIG. 1 is a schematic diagram of a low-altitude constrained wind power generation system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a second embodiment of a low-altitude constraint wind power generation system according to the present invention.
Reference numerals
1. A buoyancy member; 2. a connecting rope; 3. truss; 4. a mounting rod; 5. a connecting frame; 6. a power generation device; 7. a traction rope; 8. and a driving device.
Detailed Description
The technical scheme of the invention is further described below through the attached drawings and the embodiments.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
Example 1
As shown in fig. 1, the low-altitude constraint wind power generation system comprises a power generation platform, wherein at least 2 buoyancy members 1 are arranged above the power generation platform, and the buoyancy members 1 are balloons or floating bags. The 2 or more buoyancy members 1 provide more sufficient buoyancy to the entire power generation system, so that the power generation system is more reliable. The balloon or bladder is made of soft explosion-proof material such as polyvinyl chloride or polyurethane material. The balloon or the buoyancy bag is filled with gas with lighter density than air, so that the balloon or the buoyancy bag provides lift force for the whole power generation system.
In this embodiment, the balloon or bladder is internally filled with hydrogen or helium. The number of the balloons or the floating bags is 4, the shapes of the balloons or the floating bags are spherical, and the balloons or the floating bags are fixed together in pairs through light ropes, binding bands or mesh fabrics, so that the balloons or the floating bags form a whole, the floating stability of the balloons or the floating bags is ensured, and the stability and the reliability of the power generation platform are improved.
The buoyancy member 1 is connected with the power generation platform through a connecting rope 2, one end of the connecting rope 2 is fixed on the power generation platform through a fastener, and the other end of the connecting rope 2 is fixed on the power generation platform through a fastener. The buoyancy member 1 ensures the floating of the power generation platform through the connecting rope 2. The connecting ropes 2 are in one-to-one correspondence with the balloons or the floating bags, namely, each balloon or each floating bag is respectively connected with the power generation platform through the connecting ropes 2, so that the reliability of the balloons or the floating bags for providing buoyancy for the power generation platform is improved, and serious instability of the power generation platform caused by breakage of the connecting ropes 2 is avoided.
At least 3 haulage ropes 7 are arranged below the power generation platform, and the haulage ropes 7 are connected with driving equipment 8. The traction ropes 7 are in one-to-one correspondence with the driving devices 8, namely, each driving device 8 corresponds to one traction rope 7, so that each traction rope 7 can be controlled independently. The driving device 8 in this embodiment is a winch which is fixed on the ground. One end of the traction rope 7 is fixed at the bottom end of the power generation platform, the other end of the traction rope 7 is wound on a winch, and the winding and unwinding of the traction rope 7 are realized through rotation of a rope drum on the winch. The number of hauling ropes 7 is set as required. The number of the traction ropes 7 is 3 or more, and three axial directions of the three-dimensional space of the power generation platform are respectively restrained, so that the position of the power generation platform is restrained; the number of the traction ropes 7 is 6 or more, and three axial directions and three included angles of the three-dimensional space of the power generation platform are restrained, so that the position and the gesture of the power generation platform are restrained; the controllability of the power generation platform is higher.
According to the kinematics theory of the rope traction parallel robot, when the three axial directions of the three-dimensional space of the power generation platform are respectively restrained by 3 traction ropes 7 or more, the fixed points of all the traction ropes 7 at the bottom end of the power generation platform are required to be as close as possible, and then the unique position of the rope fixed point at the bottom end of the power generation platform in the three-dimensional space can be determined by the lengths of all the traction ropes 7, so that the three axial directions of the three-dimensional space of the power generation platform are respectively restrained. When the three axial directions and three included angles of the three-dimensional space of the power generation platform are restrained by 6 traction ropes 7 or more, the fixed points of all the traction ropes 7 at the bottom end of the power generation platform can be flexibly selected, and the unique values of the three axial directions and the three included angles of the power generation platform in the three-dimensional space can be determined by the lengths of all the traction ropes 7, so that the three axial directions and the three included angles of the three-dimensional space of the power generation platform are restrained.
In this embodiment, the connecting rope 2 and the traction rope 7 are all aviation steel wire ropes, which have the advantages of strong quality and high strength, and can provide reliable traction for the whole power generation system.
The power generation platform comprises a mounting rod 4, and power generation equipment 6 is fixedly arranged on the mounting rod 4. The top of installation pole 4 is fixed to be provided with truss 3, and installation pole 4 is located the central point of truss 3. The connecting ropes 2 are fixed on the end heads of the trusses 3 through buckles, and the connecting ropes 2 are uniformly fixed on the trusses 3, so that stability and reliability of the trusses 3 are improved.
The bottom end fixing of installation pole 4 is provided with link 5, and installation pole 4 is located the central point of link 5. The top end of the traction rope 7 is fixed on the connecting frame 5. The installation rod 4 is of a frame structure, and the installation and strength requirements of the traction rope 7 are met, so that the quality of the power generation platform is reduced. In this embodiment, the installation pole 4, the truss 3 and the connecting frame 5 all adopt carbon fiber materials, and the carbon fiber materials has the characteristics of light in weight and high strength, is favorable to improving the strength of the power generation platform, reduces the quality of the power generation platform, and is also favorable to improving the controllability and the stability of the power generation platform.
In this embodiment, the power generating device 6 is a horizontal axis power generating device 6, and the power generating device 6 is directly fixed to the mounting rod 4. A plurality of horizontal shaft power generation devices 6 can be arranged on the mounting rod 4 in a linear array according to the requirement. The power generation equipment 6 is connected with the energy storage equipment on the ground through a wire, and the electric energy of the power generation equipment 6 is transmitted to the energy storage equipment on the ground through the wire for storage. The energy storage device may also provide electrical energy to the overall power generation system. The wire can be attached to the traction rope 7, and an insulating layer is arranged outside the exposed part where the wire is not connected.
The power generation platform is provided with monitoring equipment, and the monitoring equipment is electrically connected with control equipment positioned on the ground. The monitoring device and the control device can be in a radio connection mode or a wired electric connection mode. The cable with the wire electric connection is attached to the traction rope 7. The monitoring device transmits the signal to the control device by wireless or wired means.
The driving device 8 is provided with a pull rope sensor for monitoring the length of the pull rope 7, the pull rope sensor and the driving device 8 are electrically connected with the control device, and the pull rope sensor sends a monitored length signal of the pull rope 7 to the control device. The control device processes the received signals of the monitoring device and the stay rope sensor, and controls the driving device 8 to rotate according to the processing structure, so that the driving device 8 can respectively retract and release each haulage rope 7, and the position and the gesture of the power generation platform are adjusted.
The monitoring device comprises an attitude sensor and a wind speed and direction sensor for monitoring the position and the attitude of the power generation platform. The attitude sensor is fixedly arranged on the mounting rod 4, and is used for monitoring attitude parameters such as the height, the inclination angle, the movement direction and the like of the power generation platform in real time and sending the monitored attitude parameter information to control equipment on the ground. The attitude sensor can be selected from a gyroscope, a three-axis accelerometer, a three-axis electronic compass and the like according to the requirements.
The wind speed and direction sensor can be arranged on the truss 3, the mounting rod 4 and the connecting frame 5 and is used for measuring the wind speed and the wind direction at different positions in the air. The wind speed and direction sensor sends the monitored wind speed and direction information to control equipment on the ground, the control equipment processes the wind speed and direction information, the information of the attitude sensor and the information of the pull rope sensor according to the received wind speed and direction information, and controls the driving equipment 8 to retract and retract the pull rope 7 according to the processed result, so that the position and the attitude of the power generation platform are adjusted, the power generation platform is adjusted to be in favor of the position and the attitude of power generation, and the power generation efficiency of the power generation system is improved.
In this embodiment, the attitude sensor, the wind speed and direction sensor, the pull rope sensor, the winch and the control device are electrically connected in a specific manner according to the need by adopting the existing technology.
Example two
As shown in fig. 2, the low-altitude constraint wind power generation system comprises a power generation platform, wherein at least 2 buoyancy members 1 are arranged above the power generation platform, and the buoyancy members 1 are balloons or buoyancy bags. The 2 or more buoyancy members 1 provide more sufficient buoyancy to the entire power generation system, so that the power generation system is more reliable. The balloon or bladder is made of soft explosion-proof material such as polyvinyl chloride or polyurethane material. The balloon or the buoyancy bag is filled with gas with lighter density than air, so that the balloon or the buoyancy bag provides lift force for the whole power generation system.
In this embodiment, the balloon or bladder is internally filled with hydrogen or helium. The number of the balloons or the floating bags is 4, the shapes of the balloons or the floating bags are spherical, and the balloons or the floating bags are fixed together in pairs through light ropes, binding bands or mesh fabrics, so that the balloons or the floating bags form a whole, the floating stability of the balloons or the floating bags is ensured, and the stability and the reliability of the power generation platform are improved.
The buoyancy member 1 is connected with the power generation platform through a connecting rope 2, one end of the connecting rope 2 is fixed on the power generation platform through a fastener, and the other end of the connecting rope 2 is fixed on the power generation platform through a fastener. The buoyancy member 1 ensures the floating of the power generation platform through the connecting rope 2. The connecting ropes 2 are in one-to-one correspondence with the balloons or the floating bags, namely, each balloon or each floating bag is respectively connected with the power generation platform through the connecting ropes 2, so that the reliability of the balloons or the floating bags for providing buoyancy for the power generation platform is improved, and serious instability of the power generation platform caused by breakage of the connecting ropes 2 is avoided.
At least 3 haulage ropes 7 are arranged below the power generation platform, and the haulage ropes 7 are connected with driving equipment 8. The traction ropes 7 are in one-to-one correspondence with the driving devices 8, namely, each driving device 8 corresponds to one traction rope 7, so that each traction rope 7 can be controlled independently. The driving device 8 in this embodiment is a winch which is fixed on the ground. One end of the traction rope 7 is fixed at the bottom end of the power generation platform, the other end of the traction rope 7 is wound on a winch, and the winding and unwinding of the traction rope 7 are realized through rotation of a rope drum on the winch. The number of hauling ropes 7 is set as required. The number of the traction ropes 7 is 3 or more, and three axial directions of the three-dimensional space of the power generation platform are respectively restrained, so that the position of the power generation platform is restrained; the number of the traction ropes 7 is 6 or more, and three axial directions and three included angles of the three-dimensional space of the power generation platform are restrained, so that the position and the gesture of the power generation platform are restrained; the controllability of the power generation platform is higher.
In this embodiment, the connecting rope 2 and the traction rope 7 are all aviation steel wire ropes, which have the advantages of strong quality and high strength, and can provide reliable traction for the whole power generation system.
The power generation platform comprises a mounting rod 4, and power generation equipment 6 is fixedly arranged on the mounting rod 4. The top of installation pole 4 is fixed to be provided with truss 3, and installation pole 4 is located the central point of truss 3. The connecting ropes 2 are fixed on the end heads of the trusses 3 through buckles, and the connecting ropes 2 are uniformly fixed on the trusses 3, so that stability and reliability of the trusses 3 are improved.
The bottom end fixing of installation pole 4 is provided with link 5, and installation pole 4 is located the central point of link 5. The top end of the traction rope 7 is fixed on the connecting frame 5. The installation rod 4 is of a frame structure, and the installation and strength requirements of the traction rope 7 are met, so that the quality of the power generation platform is reduced. In this embodiment, the installation pole 4, the truss 3 and the connecting frame 5 all adopt carbon fiber materials, and the carbon fiber materials has the characteristics of light in weight and high strength, is favorable to improving the strength of the power generation platform, reduces the quality of the power generation platform, and is also favorable to improving the controllability and the stability of the power generation platform.
In this embodiment, the power generating device 6 is a vertical shaft power generating device 6, the power generating device 6 is directly fixed on the mounting rod 4, and the central shaft of the power generating device 6 is coaxial with the mounting rod 4, so that the stability of the installation and the working of the power generating device 6 is improved. A plurality of horizontal shaft power generation devices 6 can be arranged on the mounting rod 4 in a linear array according to the requirement. The power generation equipment 6 is connected with the energy storage equipment on the ground through a wire, and the electric energy of the power generation equipment 6 is transmitted to the energy storage equipment on the ground through the wire for storage. The energy storage device may also provide electrical energy to the overall power generation system. The wire can be attached to the traction rope 7, and an insulating layer is arranged outside the exposed part where the wire is not connected.
The power generation platform is provided with monitoring equipment, and the monitoring equipment is electrically connected with control equipment positioned on the ground. The monitoring device and the control device can be in a radio connection mode or a wired electric connection mode. The cable with the wire electric connection is attached to the traction rope 7. The monitoring device transmits the signal to the control device by wireless or wired means.
The driving device 8 is provided with a pull rope sensor for monitoring the length of the pull rope 7, the pull rope sensor and the driving device 8 are electrically connected with the control device, and the pull rope sensor sends a monitored length signal of the pull rope 7 to the control device. The control device processes the received signals of the monitoring device and the stay rope sensor, and controls the driving device 8 to rotate according to the processing structure, so that the driving device 8 can respectively retract and release each haulage rope 7, and the position and the gesture of the power generation platform are adjusted.
The monitoring device comprises an attitude sensor and a wind speed and direction sensor for monitoring the position and the attitude of the power generation platform. The attitude sensor is fixedly arranged on the mounting rod 4, and is used for monitoring attitude parameters such as the height, the inclination angle, the movement direction and the like of the power generation platform in real time and sending the monitored attitude parameter information to control equipment on the ground. The attitude sensor can be selected from a gyroscope, a three-axis accelerometer, a three-axis electronic compass and the like according to the requirements.
The wind speed and direction sensor can be arranged on the truss 3, the mounting rod 4 and the connecting frame 5 and is used for measuring the wind speed and the wind direction at different positions in the air. The wind speed and direction sensor sends the monitored wind speed and direction information to control equipment on the ground, the control equipment processes the wind speed and direction information, the information of the attitude sensor and the information of the pull rope sensor according to the received wind speed and direction information, and controls the driving equipment 8 to retract and retract the pull rope 7 according to the processed result, so that the position and the attitude of the power generation platform are adjusted, the power generation platform is adjusted to be in favor of the position and the attitude of power generation, and the power generation efficiency of the power generation system is improved.
In this embodiment, the attitude sensor, the wind speed and direction sensor, the pull rope sensor, the winch and the control device are electrically connected in a specific manner according to the need by adopting the existing technology.
Therefore, the low-altitude constraint wind power generation system can solve the problems that power generation equipment is unstable and is not easy to control.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention and not for limiting it, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that: the technical scheme of the invention can be modified or replaced by the same, and the modified technical scheme cannot deviate from the spirit and scope of the technical scheme of the invention.
Claims (8)
1. A low altitude constrained wind power generation system, characterized by: the device comprises a power generation platform, wherein at least 2 buoyancy pieces are arranged above the power generation platform, the buoyancy pieces are connected with the power generation platform through connecting ropes, at least 3 traction ropes are arranged below the power generation platform, and the traction ropes are connected with driving equipment; the power generation platform is provided with monitoring equipment, the monitoring equipment is electrically connected with control equipment positioned on the ground, the control equipment is electrically connected with driving equipment, the monitoring equipment comprises an attitude sensor and a wind speed and wind direction sensor, the attitude sensor is used for monitoring the position and the attitude of the power generation platform, the driving equipment is provided with a pull rope sensor for monitoring the length of a pull rope, and the pull rope sensor and the driving equipment are electrically connected with the control equipment.
2. A low altitude constraint wind power generation system in accordance with claim 1, wherein: the buoyancy member is a balloon or a buoyancy bag, and hydrogen or helium is filled in the balloon or the buoyancy bag.
3. A low altitude constraint wind power generation system in accordance with claim 2 wherein: the connecting rope and the traction rope are aviation steel wire ropes.
4. A low-altitude constrained wind power generation system according to claim 3, wherein: the power generation platform comprises a mounting rod, the power generation equipment is fixedly arranged on the mounting rod, a truss is arranged at the top end of the mounting rod, a connecting rope is fixed on the truss, a connecting frame is arranged at the bottom end of the mounting rod, and a traction rope is fixed on the connecting frame.
5. A low altitude constraint wind power generation system in accordance with claim 4 wherein: the mounting rods, the trusses and the connecting frames are all made of carbon fiber materials.
6. A low altitude constraint wind power generation system in accordance with claim 5, wherein: the power generation equipment is horizontal shaft power generation equipment or vertical shaft power generation equipment.
7. A low altitude constraint wind power generation system in accordance with claim 6 wherein: the attitude sensor and the wind speed and direction sensor are arranged on the connecting rod, the truss or the connecting frame.
8. A low altitude constraint wind power generation system in accordance with claim 7 wherein: the driving device is a winch.
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| CN102072093A (en) * | 2010-11-30 | 2011-05-25 | 浙江双民科技有限公司 | Mobile lifting wind power station |
| CN105909464A (en) * | 2016-06-16 | 2016-08-31 | 东华理工大学 | Long-acting floating remote-sensing earth observation platform utilizing captive balloons |
| CN114109726A (en) * | 2021-11-24 | 2022-03-01 | 重庆交通大学绿色航空技术研究院 | Flight device, power generation system and power generation method for generating power by utilizing solar energy and wind energy |
| CN114802631A (en) * | 2022-06-23 | 2022-07-29 | 南通中舟风电工程技术有限公司 | Offshore wind power floating barrel platform |
| CN116428119A (en) * | 2023-05-22 | 2023-07-14 | 广西蓝水海洋工程有限公司 | Floating type ocean wind power generation foundation |
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