Parachute opening device, working method and airborne assembly suitable for high-altitude wind power generation

Abstract

The application relates to the technical field of high-altitude wind power generation, in particular to an umbrella opening device suitable for high-altitude wind power generation, a working method and an air assembly. A rib is arranged on an umbrella body, a split power supply is arranged in the umbrella body, a first electromagnetic coil is arranged in each rib, the split power supply is electrically connected with the first electromagnetic coil, the polarity of the first electromagnetic coil can be controlled by controlling the current direction of the first electromagnetic coil, and therefore the opening and closing of the umbrella body can be effectively and actively controlled. Further, the magnetic field size can be controlled by changing the output power of the split power supply, and therefore the mutual magnetic interaction force between the ribs can be indirectly controlled, and therefore the opening and closing speed and degree of the umbrella body can be adjusted.

Description

Technical Field

[0001] This invention relates to the field of high-altitude wind power generation technology, and in particular to a parachute opening device, working method, and aerial components suitable for high-altitude wind power generation. Background Technology

[0002] High-altitude wind energy is a new energy source that humans have just begun to research and utilize. Some studies have pointed out that the wind energy contained in the upper atmosphere is more than 100 times the total energy needed by human society. Therefore, high-altitude wind power generation technology is the future development trend of wind power generation.

[0003] In related technologies, when starting and stopping a parachute-type land-based high-altitude wind power generation system, there is a problem that the opening and closing of the power parachute and the balancing parachute are difficult to actively control.

[0004] Therefore, there is an urgent need to provide a parachute opening device, working method, and aerial components suitable for high-altitude wind power generation to solve the above-mentioned technical problems. Summary of the Invention

[0005] This invention provides an umbrella opening device, working method, and aerial components suitable for high-altitude wind power generation, which can effectively achieve active control of umbrella opening and closing.

[0006] In a first aspect, embodiments of the present invention provide a parachute opening device suitable for high-altitude wind power generation, comprising: Multiple umbrella ribs are radially distributed and evenly arranged on the umbrella surface, and each umbrella rib is provided with a first electromagnetic coil. A separate power supply is located at the top of the umbrella rib and is electrically connected to the first electromagnetic coil. The opening and closing of the umbrella is controlled by controlling the polarity of the first electromagnetic coil.

[0007] In one embodiment, the split power supply has a ring structure, and the cable for high-altitude wind power generation passes through the through hole formed by the split power supply.

[0008] In one embodiment, the system further includes multiple edgings, each edging being connected between the bottom ends of two adjacent umbrella ribs, and each edging being provided with a second electromagnetic coil. The separate power supply is electrically connected to the second electromagnetic coil, and the first electromagnetic coil and the second electromagnetic coil are connected in series.

[0009] In one embodiment, the split power supply includes multiple unit modules, each of which includes a sub-power supply and a control circuit. The sub-power supply, the control circuit, the first electromagnetic coil, and the second electromagnetic coil are electrically connected. The control circuit is used to control the current direction of the first electromagnetic coil and the second electromagnetic coil to control the polarity of the first electromagnetic coil and the second electromagnetic coil.

[0010] In one embodiment, each umbrella rib is provided with a straight wire, and a connection terminal is provided at the connection between the umbrella rib and the edging. Two adjacent umbrella ribs and the edging connected to the two umbrella ribs form an independent unit, and two adjacent independent units share one umbrella rib. In each independent unit, the first electromagnetic coil and the straight conductor are electrically connected to the second electromagnetic coil through the connecting terminals at both ends of the edging.

[0011] In one embodiment, the control circuit includes a first semiconductor switch, a second semiconductor switch, a third semiconductor switch, and a fourth semiconductor switch. The first terminals of the first semiconductor switch and the second semiconductor switch are connected to the positive terminal of the sub-power supply. The second terminals of the first semiconductor switch and the third semiconductor switch are connected to the first electromagnetic coil. The second terminals of the second semiconductor switch and the fourth semiconductor switch are connected to the second electromagnetic coil. The second terminals of the third semiconductor switch and the fourth semiconductor switch are connected to the negative terminal of the sub-power supply.

[0012] In one embodiment, each of the unit modules further includes a variable resistor used to change the current magnitude of the first electromagnetic coil and the second electromagnetic coil; and / or, An insulating layer is provided between two adjacent unit modules.

[0013] Secondly, embodiments of the present invention provide a method for operating a parachute opening device suitable for high-altitude wind power generation, applied to the parachute opening device described in the above embodiments, comprising: Fully open umbrella: By controlling the control circuit of each unit module, the polarity direction of the first electromagnetic coil in adjacent umbrella ribs is the same, and the polarity direction of the second electromagnetic coil in adjacent edging is opposite, so as to realize active umbrella opening by utilizing the generated repulsive magnetic force. Complete umbrella closure: By controlling the control circuit of each unit module, the polarity of the first electromagnetic coil in adjacent umbrella ribs is reversed, and the polarity of the second electromagnetic coil in adjacent edging is the same, so as to achieve active umbrella closure by utilizing the generated mutual magnetic force.

[0014] In one embodiment, it also includes: During the opening or closing of the umbrella, the current magnitude of the first electromagnetic coil and the second electromagnetic coil is changed by altering the resistance value of the variable resistor, thereby achieving incomplete opening or closing of the umbrella.

[0015] Thirdly, embodiments of the present invention provide an aerial component suitable for high-altitude wind power generation, including a cable and a parachute and a levitation device disposed on the cable, wherein the parachute is provided with an opening device as described in the above embodiments.

[0016] Compared with related technologies, the present invention has at least the following beneficial effects: The umbrella opening device, operating method, and aerial components for high-altitude wind power generation provided by embodiments of the present invention, by setting umbrella ribs and a separate power supply on the umbrella body, and by setting a first electromagnetic coil in each umbrella rib, with the separate power supply electrically connected to the first electromagnetic coil, the polarity of the first electromagnetic coil can be controlled by controlling the direction of the current in the first electromagnetic coil, thereby effectively and actively controlling the opening and closing of the umbrella body. Furthermore, by changing the output power of the separate power supply, the magnitude of the magnetic field can be controlled, thereby indirectly controlling the mutual magnetic force between the umbrella ribs, thus adjusting the speed and extent of the umbrella opening and closing. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a top view of the umbrella body in the fully opened state, as provided in an embodiment of the present invention. Figure 2 This is a schematic diagram of the structure of a split power supply provided in an embodiment of the present invention; Figure 3 A circuit diagram of a unit module provided in an embodiment of the present invention; Figure 4 A schematic diagram of the circuit of an independent unit provided in an embodiment of the present invention.

[0019] Figure label: 10-Umbrella body; 101-Umbrella canopy; 102-Through hole; 1-Umbrella rib; 11-First electromagnetic coil; 12-Straight conductor; 2-Edge wrapping; 21-Second electromagnetic coil; 22-Connecting terminal; 3-Split power supply; 31-Unit module; 311-Sub-power supply; 312-Control circuit; 312a-First semiconductor switch; 312b-Second semiconductor switch; 312c-Third semiconductor switch; 312d-Fourth semiconductor switch; 313-Variable resistor; 32-Insulating layer. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] like Figure 1 and Figure 4 As shown, this embodiment of the invention provides an umbrella opening device suitable for high-altitude wind power generation, including a split power supply 3 and multiple umbrella ribs 1. The multiple umbrella ribs 1 are radially distributed and uniformly arranged on the umbrella surface 101 of the umbrella body 10. Each umbrella rib 1 is provided with a first electromagnetic coil 11. The split power supply 3 is located at the top of the umbrella rib 1 and is electrically connected to the first electromagnetic coil 11. The opening and closing of the umbrella body 10 is controlled by controlling the polarity of the first electromagnetic coil 11.

[0022] In this embodiment, by setting umbrella ribs 1 and a separate power supply 3 on the umbrella body 10, and by setting a first electromagnetic coil 11 in each umbrella rib 1, and electrically connecting the separate power supply 3 to the first electromagnetic coil 11, the polarity of the first electromagnetic coil 11 can be controlled by controlling the direction of the current in the first electromagnetic coil 11, thereby effectively and actively controlling the opening and closing of the umbrella body 10. Furthermore, by changing the output power of the separate power supply 3, the magnitude of the magnetic field can be controlled, thereby indirectly controlling the mutual magnetic force between the umbrella ribs 1, and thus adjusting the speed and extent of the opening and closing of the umbrella body 10.

[0023] In other words, each umbrella rib 1 can accommodate a complete circuit loop, meaning that a closed circuit can be achieved within each umbrella rib 1.

[0024] In one embodiment of the present invention, the umbrella opening device further includes a plurality of edgings 2, each edging 2 being connected between the bottom ends of two adjacent umbrella ribs 1, and each edging 2 being provided with a second electromagnetic coil 21, the split power supply 3 being electrically connected to the second electromagnetic coil 21, and the first electromagnetic coil 11 and the second electromagnetic coil 21 being connected in series.

[0025] In this embodiment, by introducing an edging, umbrella ribs 1, edging 2, and a separate power supply 3 are provided on the umbrella body 10. A first electromagnetic coil 11 is provided in each umbrella rib 1, and a second electromagnetic coil 21 is provided in each edging 2. The separate power supply 3 is electrically connected to the second electromagnetic coil 21. The first electromagnetic coil 11 and the second electromagnetic coil 21 are connected in series. In this way, the polarity of the two can be controlled by controlling the current direction of the first electromagnetic coil 11 and the second electromagnetic coil 21, thereby further effectively and actively controlling the opening and closing of the umbrella body 10.

[0026] Furthermore, the magnitude of the magnetic field can be controlled by changing the output power of the split power supply 3, thereby indirectly controlling the mutual magnetic force between the umbrella ribs 1 and the edging 2, thus adjusting the speed and extent of the opening and closing of the umbrella body 10.

[0027] Furthermore, by combining wind speed, wind force, and wind direction data, this method can achieve precise control over the opening and closing of the umbrella 10. For example, when the wind speed is high, the split power supply 3 can be turned off, allowing wind to enter the umbrella 10 to achieve natural opening; when the wind speed is low, the split power supply 3 can be turned off, allowing the umbrella 10 to close naturally; when the wind speed is high, the current can be reduced to prevent the umbrella 10 from closing completely, achieving partial wind capture; when the wind speed is low, the current can be increased to prevent the umbrella 10 from closing completely, achieving partial wind capture.

[0028] In some embodiments, the umbrella body 10 includes a power umbrella and a balancing umbrella, which are not specifically limited here.

[0029] In some implementations, to increase the magnetic force generated by the electromagnetic coil, the number of turns of the electromagnetic coil can be increased, or an iron core can be inserted in the middle of the electromagnetic coil, which will not be elaborated here.

[0030] like Figure 2 As shown, in one embodiment of the present invention, the split power supply 3 has a ring structure, and the cable for high-altitude wind power generation passes through the through hole 102 formed by the split power supply 3.

[0031] In this embodiment, by setting the split power supply 3 as a ring structure, it can be easily installed at the top of the umbrella rib 1, and the position where the cable passes through can be easily avoided.

[0032] In one embodiment of the present invention, the split power supply 3 includes multiple unit modules 31, each unit module 31 including a sub-power supply 311 and a control circuit 312. The sub-power supply 311, the control circuit 312, the first electromagnetic coil 11 and the second electromagnetic coil 21 are electrically connected. The control circuit 312 is used to control the current direction of the first electromagnetic coil 11 and the second electromagnetic coil 21, so as to control the polarity of the first electromagnetic coil 11 and the second electromagnetic coil 21.

[0033] In this embodiment, by providing a sub-power supply 311 and a control circuit 312 in each unit module 31, the control circuit 312 can be used to control the current direction of the first electromagnetic coil 11 and the second electromagnetic coil 21, thereby controlling the polarity of the first electromagnetic coil 11 and the second electromagnetic coil 21.

[0034] In some implementations, the sub-power source 311 can be a current source or a voltage source, such as an energy storage battery or a flexible photovoltaic panel, without being specifically limited here.

[0035] In one embodiment of the present invention, an insulating layer 32 is provided between two adjacent unit modules 31. This arrangement helps to ensure the operational safety between unit modules 31 and prevent short circuits from occurring.

[0036] like Figure 3 As shown, in one embodiment of the present invention, the control circuit 312 includes a first semiconductor switch 312a, a second semiconductor switch 312b, a third semiconductor switch 312c, and a fourth semiconductor switch 312d. The first ends of the first semiconductor switch 312a and the second semiconductor switch 312b are connected to the positive terminal of the sub-power supply 311. The second ends of the first semiconductor switch 312a and the first ends of the third semiconductor switch 312c are connected to the first electromagnetic coil 11. The second ends of the second semiconductor switch 312b and the first ends of the fourth semiconductor switch 312d are connected to the second electromagnetic coil 21. The second ends of the third semiconductor switch 312c and the fourth semiconductor switch 312d are connected to the negative terminal of the sub-power supply 311.

[0037] In this embodiment, by configuring the control circuit 312 with a first semiconductor switch 312a, a second semiconductor switch 312b, a third semiconductor switch 312c, and a fourth semiconductor switch 312d, the on / off states of the first semiconductor switch 312a, the second semiconductor switch 312b, the third semiconductor switch 312c, and the fourth semiconductor switch 312d can be controlled to control the current direction of the first electromagnetic coil 11 and the second electromagnetic coil 21, thereby controlling the polarity of the first electromagnetic coil 11 and the second electromagnetic coil 21.

[0038] For example, when the first semiconductor switch 312a and the fourth semiconductor switch 312d are open, while the second semiconductor switch 312b and the third semiconductor switch 312c are closed, the direction of the current in the electromagnetic coil is... Figure 3 From top to bottom; when the first semiconductor switch 312a and the fourth semiconductor switch 312d are closed, and the second semiconductor switch 312b and the third semiconductor switch 312c are open, the direction of the current in the electromagnetic coil is... Figure 3 The direction is from bottom to top. Therefore, it can be seen that by controlling the on / off state of the first semiconductor switch 312a, the second semiconductor switch 312b, the third semiconductor switch 312c, and the fourth semiconductor switch 312d, the direction of the current in the first electromagnetic coil 11 and the second electromagnetic coil 21 can be controlled.

[0039] In some implementations, the semiconductor switch can be any of IGBT, FET, or BJT; the type of semiconductor switch is not specifically limited here.

[0040] Understandable, Figure 3The electromagnetic coil shown is a combination of the first electromagnetic coil 11 and the second electromagnetic coil 21, which represents the load.

[0041] In one embodiment of the present invention, each unit module 31 further includes a variable resistor 313, which is used to change the current magnitude of the first electromagnetic coil 11 and the second electromagnetic coil 21. This configuration allows for changing the current magnitude of the first electromagnetic coil 11 and the second electromagnetic coil 21 by changing the resistance value of the variable resistor 313, thereby achieving incomplete opening or incomplete closing of the umbrella.

[0042] When the sub-power source 311 is a voltage source, the variable resistor 313 and the electromagnetic coil can be connected in series; when the sub-power source 311 is a current source, the variable resistor 313 and the electromagnetic coil can be connected in parallel. Figure 3 In the circuit shown, sub-power supply 311 is a current source.

[0043] Please continue reading. Figure 4 In one embodiment of the present invention, a straight conductor 12 is provided in each umbrella rib 1, and a connecting terminal 22 is provided at the connection between the umbrella rib 1 and the edging 2. Two adjacent umbrella ribs 1 and the edging 2 connected to the two umbrella ribs 1 form an independent unit, and two adjacent independent units share one umbrella rib 1. In each independent unit, the first electromagnetic coil 11 and the straight wire 12 are electrically connected to the second electromagnetic coil 21 through the connecting terminals 22 at both ends of the edging 2.

[0044] In other words, each umbrella rib 1 is equipped with a first electromagnetic coil 11 and a straight conductor 12. The umbrella rib 1 and the edging 2 serve to protect and insulate the electromagnetic coil and the straight conductor 12.

[0045] It is understandable that by controlling the on / off state of the semiconductor switch and the resistance value of the variable resistor 313 in each unit module 31, when the magnetic poles and magnetic forces of each electromagnetic coil are in a completely synchronized state, the entire umbrella body 10 can present a relatively standard round umbrella shape; when the magnetic poles and magnetic forces of each coil are in different states, by changing the direction of the magnetic poles and the magnitude of the magnetic force on each electromagnetic coil, the shape of the umbrella body 10 can be changed to a certain extent (i.e., an irregular shape), thereby increasing or decreasing the wind capture volume to achieve the safety guarantee of high-altitude wind power generation.

[0046] Furthermore, embodiments of the present invention also provide a method for operating a parachute opening device suitable for high-altitude wind power generation, applied to the parachute opening device mentioned in the above embodiments, including: Fully open umbrella: By controlling the control circuit 312 of each unit module 31, the polarity direction of the first electromagnetic coil 11 in adjacent umbrella ribs 1 is the same, and the polarity direction of the second electromagnetic coil 21 in adjacent edging 2 is opposite, so as to realize active umbrella opening by utilizing the generated mutual repulsive magnetic force. Complete umbrella closure: By controlling the control circuit 312 of each unit module 31, the polarity of the first electromagnetic coil 11 in adjacent umbrella ribs 1 is reversed, and the polarity of the second electromagnetic coil 21 in adjacent edging 2 is the same, so as to realize active umbrella closure by utilizing the generated mutual magnetic force.

[0047] It is understood that the working method of the umbrella opening device for high-altitude wind power generation provided in the embodiments of the present invention and the umbrella opening device for high-altitude wind power generation provided in the above embodiments are based on the same inventive concept, and therefore have the same beneficial effects. The beneficial effects of the working method of the umbrella opening device for high-altitude wind power generation will not be elaborated here.

[0048] In one embodiment of the present invention, the above method further includes: During the opening or closing of the umbrella, the current magnitude of the first electromagnetic coil 11 and the second electromagnetic coil 21 is changed by altering the resistance value of the variable resistor 313, thereby achieving incomplete opening or incomplete closing of the umbrella.

[0049] In addition, embodiments of the present invention also provide an aerial component suitable for a high-altitude wind power generation system, including a cable (not shown in the figure) and a parachute 10 and a levitation device (not shown in the figure) disposed on the cable, wherein the parachute 10 is provided with the parachute opening device mentioned in any of the above embodiments.

[0050] It is understood that the aerial component for high-altitude wind power generation system provided in the embodiments of the present invention and the umbrella opening device for high-altitude wind power generation provided in the above embodiments are based on the same inventive concept, and therefore have the same beneficial effects. The beneficial effects of the aerial component for high-altitude wind power generation system will not be elaborated here.

[0051] In some implementations, the levitation device may be a helium balloon or other device with levitation function, and no specific limitation is made here.

[0052] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0053] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is only used to illustrate the technical solution of the present invention, and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention are included within the scope of protection of the present invention.

Claims

1. A parachute opening device suitable for high-altitude wind power generation, characterized in that, include: Multiple umbrella ribs (1) are radially distributed and evenly arranged on the canopy (101) of the umbrella body (10), and each umbrella rib (1) is provided with a first electromagnetic coil (11). A separate power supply (3) is located at the top of the umbrella rib (1) and is electrically connected to the first electromagnetic coil (11). The opening and closing of the umbrella body (10) is controlled by controlling the polarity of the first electromagnetic coil (11) in two adjacent umbrella ribs (1); The split power supply (3) has a ring structure, and the cable for high-altitude wind power generation passes through the through hole (102) formed by the split power supply (3). It also includes multiple edgings (2), each edging (2) is connected between the bottom ends of two adjacent umbrella ribs (1), and each edging (2) is provided with a second electromagnetic coil (21). The split power supply (3) is electrically connected to the second electromagnetic coil (21), and the first electromagnetic coil (11) and the second electromagnetic coil (21) are connected in series. The split power supply (3) includes multiple unit modules (31), each of which includes a sub-power supply (311) and a control circuit (312). The sub-power supply (311), the control circuit (312), the first electromagnetic coil (11) and the second electromagnetic coil (21) are electrically connected. The control circuit (312) is used to control the current direction of the first electromagnetic coil (11) and the second electromagnetic coil (21) to control the polarity of the first electromagnetic coil (11) and the second electromagnetic coil (21). The control circuit (312) includes a first semiconductor switch (312a), a second semiconductor switch (312b), a third semiconductor switch (312c), and a fourth semiconductor switch (312d). The first ends of the first semiconductor switch (312a) and the second semiconductor switch (312b) are connected to the positive terminal of the sub-power supply (311). The second ends of the first semiconductor switch (312a) and the first ends of the third semiconductor switch (312c) are connected to the first electromagnetic coil (11). The second ends of the second semiconductor switch (312b) and the first ends of the fourth semiconductor switch (312d) are connected to the second electromagnetic coil (21). The second ends of the third semiconductor switch (312c) and the fourth semiconductor switch (312d) are connected to the negative terminal of the sub-power supply (311). Each of the unit modules (31) further includes a variable resistor (313) used to change the current magnitude of the first electromagnetic coil (11) and the second electromagnetic coil (21); during the process of opening or closing the umbrella, the resistance value of the variable resistor (313) is changed to change the current magnitude of the first electromagnetic coil (11) and the second electromagnetic coil (21) to achieve incomplete opening or incomplete closing of the umbrella.

2. The umbrella opening device according to claim 1, characterized in that, Each of the umbrella ribs (1) is provided with a straight conductor (12), and a connection terminal (22) is provided at the connection between the umbrella rib (1) and the edging (2). Two adjacent umbrella ribs (1) and the edging (2) connected to the two umbrella ribs (1) form an independent unit, and two adjacent independent units share one umbrella rib (1). In each independent unit, the first electromagnetic coil (11) and the straight conductor (12) are electrically connected to the second electromagnetic coil (21) through the connecting terminals (22) at both ends of the edging (2).

3. The umbrella opening device according to any one of claims 1-2, characterized in that, An insulating layer (32) is provided between two adjacent unit modules (31).

4. A method for operating a parachute-opening device suitable for high-altitude wind power generation, characterized in that, Applied to the umbrella opening device as described in claim 3, comprising: Fully open the umbrella: By controlling the control circuit (312) of each of the unit modules (31), the polarity direction of the first electromagnetic coil (11) in the adjacent umbrella ribs (1) is the same, and the polarity direction of the second electromagnetic coil (21) in the adjacent edging (2) is opposite, so as to realize active opening of the umbrella by utilizing the generated repulsive magnetic force. Complete umbrella closure: By controlling the control circuit (312) of each of the unit modules (31), the polarity of the first electromagnetic coil (11) in adjacent umbrella ribs (1) is reversed, and the polarity of the second electromagnetic coil (21) in adjacent edging (2) is the same, so as to achieve active umbrella closure by utilizing the generated mutual magnetic attraction force.

5. An aerial component suitable for high-altitude wind power generation systems, characterized in that, It includes a cable, a parachute body (10) and a levitation device disposed on the cable, wherein the parachute body (10) is provided with an opening device as described in any one of claims 1-3.

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