High-concentration photovoltaic power generation system and application thereof

Abstract

The invention discloses a high-concentration photovoltaic power generation system and application thereof. According to the technical scheme, the high-concentration photovoltaic power generation system is characterized by comprising a high-concentration device and a power generation device; the high light condensation device comprises a collection device; the transmission device is connected with the high-concentration light collection device and is used for transmitting high-concentration light formed after the natural sunlight is subjected to high-power concentration and compression; the projection device is connected with the transmission device and is used for projecting the high-concentration light transmitted by the transmission device; the power generation device is used for receiving the high-concentration light projected by the projection device and converting the high-concentration light into electric energy; through arrangement of the projection device, separation of the high-concentration device and the power generation device is realized, so that photovoltaic power generation application of high-concentration light on mobile equipment such as an electric vehicle, a robot and an unmanned aerial vehicle is realized, the high-concentration light is directly projected, energy loss is reduced, and long-distance transmission, light supplement, power generation and charging can be realized.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic power generation, and more specifically, to a high-concentration photovoltaic power generation system and its application. Background Art

[0002] Photovoltaic power generation is a clean energy method that uses sunlight to generate electricity. In the existing technology, photovoltaic power generation technology has been used in many applications. The following examples illustrate several cases of photovoltaic power generation.

[0003] The first one is to collect and compress natural sunlight through a series of optical lenses and project it onto a photovoltaic cell chip of a smaller area, and follow the dual-axis solar tracker to track the rotation of the sun, thereby achieving the functions of high-power concentration and photovoltaic power generation. The advantage of this technology is that it greatly reduces the use area of photovoltaic cell chips, greatly improves the power generation efficiency per unit area of photovoltaic cell chips, and the area of photovoltaic power generation components is proportionally reduced, but can only be installed behind each focusing lens. The photovoltaic power generation component and the focusing lens combination are inseparable and are installed together in places that can receive sunlight radiation, such as open fields, building roofs, etc. Since the photovoltaic cell chips are dispersed and fixedly installed at the focal position behind each focusing lens and cannot be separated, and cannot be concentrated together, the area and volume have not been reduced, the weight has not been reduced, and the photovoltaic power generation panel is fixed behind the optical lens and cannot be flexibly moved.

[0004] The second type is solar electric vehicle technology. Solar photovoltaic panels are covered on the body of the electric vehicle. Under normal solar radiation, solar energy is converted into electrical energy and stored in power batteries, thereby providing electrical energy for the electric vehicle. Given that the average normal solar radiation illuminance on the earth's surface is around 1200 watts per square meter, the power generation of solar photovoltaic panels under this normal sunlight radiation illuminance is too low. In order to meet the demand for electricity of electric vehicles, the coverage area of solar photovoltaic panels must be increased. This has two consequences: on the one hand, even if the entire body is covered with photovoltaic panels, it is not enough to provide the power required by the vehicle; on the other hand, covering the entire body with photovoltaic panels will lead to a significant increase in load or volume, which will greatly increase the power consumption of the entire vehicle, resulting in most of the electricity generated by solar photovoltaic panels being used to offset the increased load, and it may even be counterproductive, that is, the increased power due to the increased area and weight of solar photovoltaic panels is not enough to offset the increased load of the entire vehicle. In addition, solar photovoltaic panels exposed on the surface of the car body are very unsafe and can easily break and fail due to scratches and collisions. Moreover, solar electric vehicles can only generate electricity and charge when exposed to sunlight, and the power generation efficiency of photovoltaic cells per unit area is not high.

[0005] Thirdly, there is the wireless transmission charging technology. First, the electric energy is converted into radio frequency or microwave signals by the transmitting coil unit and then transmitted wirelessly in the air to the receiving coil unit, where it is received and then converted back into electric energy. Finally, the storage battery is charged, thus realizing the wireless transmission and wireless charging functions for electric vehicles. However, the disadvantage of this technology is that it cannot perform long-distance transmission and charging for electric devices, let alone long-distance charging for moving electric devices, because the power loss of wirelessly transmitted electric energy is too large, and the transmission and reception efficiency is not high.

[0006] Generally speaking, the problems existing in the prior art are as follows: Existing photovoltaic power generation panels can only be installed in places irradiated by the sun, and the power generation efficiency per unit area is too low under the conventional sunlight radiation power. Although the high-concentration photovoltaic power generation technology proportionally reduces the area of photovoltaic cell chips, it cannot move freely without the concentrating lens and can only move with the sunlight collector and be fixedly installed facing the sun. For the wireless transmission charging technology, due to the too large high-frequency electromagnetic energy loss during the transmission, reception, and transmission processes, it can only achieve short-distance wireless charging and cannot achieve long-distance electric energy transmission and charging. Summary of the Invention

[0007] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a high-concentration photovoltaic power generation system. Through the setting of the projection device, the separation of the high-concentration device and the power generation device is realized, thereby realizing the photovoltaic power generation application of high-concentration on mobile devices such as electric vehicles, robots, and drones and directly projecting the high-concentration light, reducing energy loss and enabling long-distance transmission, supplementary lighting, power generation, and charging.

[0008] To achieve the above purpose, the present invention provides the following technical solution: A high-concentration photovoltaic power generation system includes a high-concentration device and a power generation device; The high-concentration device includes a collection device for highly concentrating, compressing, and collecting natural sunlight; A transmission device connected to the high-concentration collection device for transmitting the high-concentration light formed after highly concentrating and compressing natural sunlight; And a projection device connected to the transmission device for projecting the high-concentration light transmitted by the transmission device; The power generation device is used to receive the high-concentration light projected by the projection device and convert the high-concentration light into electric energy.

[0009] The present invention is further configured such that the distance between the high-concentration device and the power generation device is set to be short or long.

[0010] The present invention is further configured such that when the high-concentration device projects high-concentration light to the power generation device, the power generation device is static or dynamic.

[0011] The present invention is further configured such that the alignment between the high-concentration device and the power generation device is set as manual alignment or intelligent control alignment.

[0012] The present invention is further configured such that the power generation device is set as a movable power generation device or a fixed power generation device.

[0013] The present invention is further configured such that the high-concentration device projects high-concentrated light onto one or more power generation devices.

[0014] The present invention is further configured such that the concentration multiple of the high-concentration device is at least set to [multiple], and the area of the corresponding power generation device is reduced by the corresponding multiple to reduce the weight and volume of the power generation device.

[0015] The present invention is further configured such that the collection device includes a daylighting plate; an optical lens, the optical lens is disposed on the daylighting plate and at least one optical lens is disposed on the daylighting plate, and the optical lens is used for focusing and compressing natural sunlight; and an optical fiber connector, each optical fiber connector corresponds to an optical lens, the sunlight focused and compressed by the optical lens is focused onto the corresponding optical fiber connector, and the optical fiber connector is connected to the transmission device.

[0016] The present invention is further configured such that the collection device further includes a biaxial power mechanism, and the biaxial power mechanism is used for driving the daylighting plate to track the position of the sun; and a sun sensor, the sun sensor is disposed on the daylighting plate to obtain the position of the sun.

[0017] The present invention is further configured such that the optical lens is set as a spherical, quasi-spherical or non-spherical shape.

[0018] The present invention is further configured such that the transmission device is set as an optical fiber transmission network, one end of the optical fiber transmission network is connected to an optical fiber receiver, and the other end is connected to a projection device.

[0019] The present invention is further configured such that the optical fiber transmission network is set as an optical fiber bundle formed by bundling multiple optical fibers or a single optical fiber.

[0020] The present invention is further configured such that the length of the optical fiber transmission network is set according to the range of movement required by the projection device so that the projection device can move freely within the length range of the optical fiber transmission network.

[0021] The present invention is further configured such that one end of the optical fiber transmission network connected to the optical fiber connector is set as the front end, and the front end of the optical fiber transmission network is set as an optical fiber bundle composed of multiple optical fibers, and the multiple optical fibers are respectively connected to multiple optical fiber connectors.

[0022] The present invention is further configured such that: one end of the optical fiber transmission network connected to the projection device is provided with one optical fiber or an optical fiber bundle composed of multiple optical fibers; The optical fibers constituting the optical fiber bundle are provided as a single optical fiber or an optical fiber formed by bundling multiple optical fibers.

[0023] The present invention is further configured such that: the projection device includes a high-concentration projector, and the high-concentration projector includes an optical fiber adapter connected to the optical fiber transmission network and a zoom lens. The zoom lens adjusts the light field distribution of high-concentration light, that is, the size of the light spot, by adjusting the distance from the optical fiber adapter.

[0024] The present invention is further configured such that: the projection device further includes a mechanical support mechanism, and the high-concentration projector is disposed on the mechanical support mechanism; The mechanical support mechanism is provided as a mechanical power mechanism having at least degrees of freedom of pitch and horizontal biaxial rotation.

[0025] The present invention is further configured such that: the power generation device includes a photovoltaic cell chip, and the photovoltaic cell chip is used to convert high-concentration light into electrical energy.

[0026] The present invention is further configured such that: the photovoltaic cell chip is provided as a multi-junction photovoltaic cell chip.

[0027] The present invention is further configured such that: the shape and size of the photovoltaic cell chip are consistent with the shape and size of the light spot projected by the high-concentration projection device.

[0028] The present invention is further configured such that: the power generation device further includes a radiator, and the radiator is used to dissipate heat from the photovoltaic cell chip; The radiator is provided as a metal heat sink mechanism, an integrated heat pipe or a liquid cooling system, or a phase change radiator mechanism.

[0029] Another object of the present invention is to propose an application of a high-concentration photovoltaic power generation system, and the power generation device is applied to a mobile device and connected to a charging device and a motor of the mobile device; The mobile device includes an electric vehicle, a drone, a robot, and a mobile intelligent terminal.

[0030] The present invention is further configured such that: the charging device includes a charging management circuit MPPT and a storage battery, and the storage battery is connected to the motor.

[0031] The present invention is further configured such that: the projection device is configured to move within the length range of the optical fiber transmission network, so that the mobile device can enter the moving range of the projection device to enable the projection device to project high-concentration light onto the power generation device.

[0032] The present invention is further configured such that when the projection device projects high-concentration light onto the power generation device, the power generation device is on a moving device in motion, and the mechanical support mechanism and zoom lens in the projection device are set to be controlled by artificial intelligence to accurately project the high-concentration light onto the photovoltaic cell chips of the power generation device in motion.

[0033] The present invention is further configured such that the light collected by the high-concentration light device is set to be natural sunlight directly from the sun, natural sunlight indirectly from the sun, or light energy from an artificial light source; The natural sunlight indirectly from the sun includes natural sunlight from the moon; The artificial light source includes semiconductor lasers, semiconductor LED light sources, fiber lasers, high-pressure sodium lamps, metal halide lamps, electrodeless lamps, and xenon lamps.

[0034] The present invention is further configured such that the power generation device is arranged on the side of the electric vehicle body, the collection device is arranged in an open space exposed to the sun, the projection device is arranged in a site near a road, the site near the road is set as a supplementary light station, and the collection device in the open space is connected to the projection device at the supplementary light station through an optical fiber transmission network.

[0035] The present invention is further configured such that the projection device is set as a gun-shaped projection device.

[0036] The present invention is further configured such that the power generation device is arranged on the top of the electric vehicle body, and the power generation device can move up or down on the top of the electric vehicle body; When the electric vehicle is charged, it is charged at a long distance from the projection device.

[0037] The present invention is further configured such that during the charging process of the electric vehicle, it is in a static or dynamic state.

[0038] The present invention is further configured such that the power generation device is arranged on the chest or back of the robot.

[0039] The present invention is further configured such that the power generation device is arranged on a mobile intelligent terminal.

[0040] The present invention is further configured to further include a card frame structure. The power generation device is arranged on the back of the mobile intelligent terminal, and the mobile intelligent terminal can be buckled in the card frame structure so that the high-concentration light projected by the projection device is aligned with the photovoltaic cell chips on the power generation device on the back of the mobile intelligent terminal.

[0041] In summary, the present invention has the following beneficial effects compared with the prior art: Through the provision of the projection device, the present invention realizes the separate setting of the high-concentration device and the power generation device, thereby realizing the photovoltaic power generation application of high-concentration on mobile devices such as electric vehicles, robots, and drones and directly projecting the high-concentration light, reducing energy loss and enabling long-distance transmission, supplementary lighting, power generation, and charging. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 Schematic diagram of the high-concentration photovoltaic power generation system for the embodiment; Figure 2 Schematic diagram of one high-concentration device corresponding to multiple power generation devices in the embodiment; Figure 3 Schematic diagram of the acquisition device for the embodiment; Figure 4 Schematic diagram of the acquisition device, transmission device, and projection device for the embodiment; Figure 5 Schematic diagram of the projection device for the embodiment; Figure 6 Schematic diagram of the high-concentration projector for the embodiment; Figure 7 Schematic diagram of the power generation device for the embodiment; Figure 8 Schematic diagram showing the connection of the photovoltaic power generation system with the charging device and the motor for the embodiment; Figure 9 Schematic diagram when the power generation device is installed on the side of the electric vehicle body for the embodiment; Figure 10 Schematic diagram when the power generation device is installed on the top of the electric vehicle body for the embodiment.

[0043] In the figure: 1. High-concentration device; 11. Acquisition device; 111. Light collecting plate; 112. Optical lens; 113. Fiber optic connector; 114. Biaxial power mechanism; 115. Solar sensor; 12. Transmission device; 13. Projection device; 131. Mechanical support mechanism; 132. High-concentration projector; 1321. Fiber optic adapter; 1322. Zoom lens; 2. Power generation device; 21. Photovoltaic cell chip; 22. Radiator; 3. Management circuit; 4. Storage battery; 5. Motor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0044] To enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention. Based on the embodiments in this application, other similar embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application. In addition, the directional terms mentioned in the following embodiments, such as "upper", "lower", "left", "right", etc., are only with reference to the directions of the accompanying drawings. Therefore, the directional terms used are for illustration rather than to limit the present invention.

[0045] The present invention will be further described below in conjunction with the accompanying drawings and preferred embodiments.

[0046] Embodiment 1: A high-concentration photovoltaic power generation system. Refer to the attached Figure 1 - attached Figure 7 drawing, which includes a high-concentration device 1 and a power generation device 2; the high-concentration device 1 includes a collection device 11, a transmission device 12, and a projection device 13. The collection device 11 is used for highly concentrating, compressing, and collecting natural sunlight; the transmission device 12 is connected to the high-concentration collection device 11 and is used for transmitting the highly concentrated sunlight formed after highly concentrating and compressing natural sunlight; the projection device 13 is connected to the transmission device 12 and is used for projecting the highly concentrated sunlight transmitted by the transmission device 12; the power generation device 2 is used for receiving the highly concentrated sunlight projected by the projection device 13 and converting the highly concentrated sunlight into electrical energy.

[0047] The high-concentration device 1 is responsible for the high-concentration, compression, collection, transmission, and projection of natural sunlight. Generally speaking, the high-concentration device 1 is installed in a specific place, similar to a gas station for cars; while the power generation device 2 is responsible for converting the highly concentrated and compressed sunlight projected by the high-concentration device 1, that is, the high-concentration sunlight, into electrical energy. Generally speaking, it is set as a movable device because there is no fixed electrical connection between the power generation device 2 and the high-concentration device 1, so it can be installed on movable devices such as electric vehicles, drones, robots, and mobile terminals.

[0048] After natural sunlight is highly concentrated and compressed by the high-concentration device 1 and then projected onto the power generation device 2, it is then converted into electrical energy through photoelectric conversion and stored in the storage battery 4 of a movable device such as an electric vehicle. It should be noted that there is no electrical contact or connection between the high-concentration device 1 and the power generation device 2 in the electrical sense. The high-concentration device 1 directly projects the high-concentration sunlight onto the power generation device 2.

[0049] It should be noted that the high-concentration light device 1 and the power generation device 2 can be kept at a very close distance or a very far distance. There is only a light connection between the high-concentration light device 1 and the power generation device 2, without any electrical connection, and even without any mechanical connection in the physical sense. Moreover, when the high-concentration light device 1 projects high-concentrated light to the power generation device 2 for high-concentration photovoltaic power generation, the power generation device 2 can be static or dynamic. The light connection between the high-concentration light device 1 and the power generation device 2 can be completed by manual alignment or by using intelligent control means such as advanced artificial intelligence algorithms and target object visual recognition. For the latter, the high-concentration light device 1 has the ability of automatic image recognition, alignment and tracking of the power generation device 2 and automatic adjustment of the high-concentration light field distribution, so that the high-concentrated light projected by the high-concentration light device 1 matches the parameters of the power generation device 2, and then maximally converts the highly concentrated sunlight into electrical energy required by mobile devices such as electric vehicles, so as to improve the utilization rate of high-concentration light and the battery life of mobile devices such as electric vehicles.

[0050] Specifically, the power generation device 2 is set as a movable power generation device 2 or a fixed power generation device 2. That is to say, the power generation device 2 can be arranged on a movable device or on a fixed device.

[0051] Specifically, the high-concentration light device 1 projects high-concentrated light to one or more power generation devices 2.

[0052] The installation position of the high-concentration light device 1 is relatively fixed, while the power generation device 2 can move completely freely. The relationship between the two can be non-one-to-one, that is, one high-concentration light device 1 can correspond to one or more power generation devices 2. Although when one high-concentration light device 1 corresponds to multiple power generation devices 2, it cannot provide high-concentrated light to multiple power generation devices 2 at the same time, but it also greatly improves the usage frequency of the high-concentration light device 1, thus improving the usage value of the high-concentration light device 1. Given that the concentration multiple of high-concentration light can be very high, at least one hundred times, even thousands and tens of thousands of times or more, correspondingly, the required area of the power generation device 2 will be greatly reduced and the weight will be greatly reduced. Therefore, the photovoltaic power generation device 2 can become very small and light, and then can be installed on mobile devices such as electric vehicles, unmanned aerial vehicles, robots, and mobile intelligent terminals with almost no additional load and volume increase.

[0053] The high-concentration light device 1 is equivalent to a charging pile with a fixed position. The power generation device 2 is installed on the mobile device. When the mobile device needs to supplement light for charging, it can go to the high-concentration light device 1 for light supplement and charging. After the light supplement and charging are completed, the mobile device can leave, so that high-frequency use can be realized.

[0054] Specifically, the collection device 11 is responsible for highly concentrating and compressing sunlight. The collection device 11 includes a daylighting plate 111, an optical lens 112, and an optical fiber connector 113. The optical lens 112 is disposed on the daylighting plate 111, and at least one optical lens 112 is provided on the daylighting plate 111. The optical lens 112 is used to focus and compress natural sunlight. Each optical lens 112 corresponds to an optical fiber connector 113. The sunlight focused and compressed by the optical lens 112 is focused on the corresponding optical fiber connector 113, and the optical fiber connector 113 is connected to the transmission device 12.

[0055] The optical lens 112 is used to concentrate and compress natural sunlight. The magnification of concentration and compression is at least more than 100 times, and can also be more than 1000 times, even more than 10,000 times, and even more than 100,000 times. The sunlight after concentration and compression is focused on the transmission device 12 fixed on the optical fiber connector 113, so that it can be coupled into the transmission device 12. The optical lens 112 can be spherical, quasi-spherical, or non-spherical, such as a Fresnel lens.

[0056] Specifically, the collection device 11 further includes a biaxial power mechanism 114 and a sun sensor 115. The biaxial power mechanism 114 is used to drive the daylighting plate 111 to track the position of the sun. The sun sensor 115 is disposed on the daylighting plate 111 to obtain the position of the sun.

[0057] The biaxial rotation mechanism is a mechanical power mechanism that provides the power for the daylighting plate 111 to precisely track the sun's trajectory in both the horizontal axis and the pitch axis. Under the guidance of the signal of the sun sensor 115, the intelligent controlled biaxial power mechanism 114 carries the daylighting plate 111 to precisely track the position of the sun, so as to maximize the concentration, compression, and collection of sunlight.

[0058] Specifically, the ratio of the daylighting area of the optical lens 112 to the area of the formed focal spot is the sunlight compression and concentration multiple of the collection device 11. For example, if the diameters of the optical lens 112 and the formed focal spot are 100 mm and 1 mm respectively, then the sunlight concentration and compression multiple of the optical lens 112 is 10,000 times.

[0059] Specifically, the transmission device 12 is set as an optical fiber transmission network. One end of the optical fiber transmission network is connected to an optical fiber receiver, and the other end is connected to a projection device 13. Generally, an optical fiber bundle is formed by bundling multiple optical fibers. Of course, there is also a case of a single optical fiber. In this embodiment, an optical fiber bundle formed by bundling multiple optical fibers is used. The two parameters of the diameter and numerical aperture of the optical fiber are very important for the sunlight collection efficiency. The larger the optical fiber diameter and the larger the numerical aperture, the easier it is to collect solar energy, and the higher the optical coupling efficiency. However, the larger the optical fiber diameter and the higher the numerical aperture, it means the higher the optical fiber cost and the more difficult it is to bend, thus increasing the difficulty of engineering construction.

[0060] To reduce optical fiber transmission loss, the material of the optical fiber is mainly low-loss quartz glass. Of course, it can also be set to other solid glass materials or even plastic materials.

[0061] The length of the optical fiber can be set according to requirements, such as 10 meters, 100 meters, or even more than 500 meters, so as to transfer the high-concentration light from the collection device 11 to the projection device 13 and support the projection device 13 to move freely within the length range of the optical fiber.

[0062] One end of the optical fiber transmission network connected to the projection device 13 is set as a single optical fiber or an optical fiber bundle composed of multiple optical fibers. The front end of the optical fiber transmission network is connected to the optical fiber connector 113 and is located at the focal position of the optical axis of the optical lens 112. Each optical fiber corresponds to an optical lens 112 and is responsible for receiving the sunlight concentrated and compressed by the optical lens 112. At the end of the optical fiber transmission network, that is, the emission end, there is at least one optical fiber. Of course, it can also be an optical fiber bundle composed of multiple optical fibers, which is inserted into the projection device 13 and connected to the projection device 13, and is responsible for transmitting the high-concentration light provided by the optical fiber transmission network to the high-concentration light projection device 13. When one end of the optical fiber transmission network connected to the projection device 13 is set as an optical fiber bundle composed of multiple optical fibers, the optical fiber transmission network is set as an optical fiber bundle composed of several optical fibers, realizing an end-to-end optical fiber transmission mode. Of course, it can also be set as an end-to-end optical fiber beam combination connection method. This method enables the optical fiber transmission network to further compress the sunlight during the sunlight transmission process. For example, two optical fibers are combined into one optical fiber, or three optical fibers are combined into one optical fiber, which can further compress the sunlight and at the same time save the optical fiber input cost.

[0063] The projection device 13 includes a mechanical support mechanism 131 and a high-concentration light projector 132 arranged on the mechanical support mechanism 131; the high-concentration light projector 132 includes an optical fiber adapter 1321 connected to the optical fiber transmission network and a zoom lens 1322. The zoom lens 1322 adjusts the light field distribution of the high-power concentration, that is, the size of the light spot, by adjusting the distance from the optical fiber adapter 1321; the mechanical support mechanism 131 is set as a mechanical power mechanism with at least pitch and horizontal two-axis rotation degrees of freedom.

[0064] The zoom lens 1322 can be a single zoom lens 1322 or a combination of multiple lenses. Its function is to shape the optical field of the highly concentrated light projected by the projector to obtain the optical field distribution required by the power generation device 2. When the zoom lens 1322 is set as a single zoom lens 1322, the zoom lens 1322 is optically coaxial with the fiber optic adapter 1321 and is located behind the fiber optic adapter 1321. When the zoom lens 1322 moves leftward, the spot area output by the highly concentrated light projector 132 becomes larger. When the zoom lens 1322 moves rightward, the spot area output by the highly concentrated light projector 132 becomes smaller. By adjusting the distance between the zoom lens 1322 and the optical adapter, that is, the focal length, the optical field distribution of the highly concentrated light can be adjusted, that is, the size of the spot can be adjusted, so as to further concentrate and compress sunlight, that is, change the compression ratio of the highly concentrated light.

[0065] Specifically, the ratio of the total light-gathering area of all the optical lenses 112 of the collection device 11 to the spot area formed by the highly concentrated light projector 132 is the sunlight compression and concentration ratio of the highly concentrated light device 1. For example, if the total light-gathering area of all the optical lenses 112 of the collection device 11 and the spot area formed by the highly concentrated light projector 132 are 2m 2 and 100mm 2 respectively, then the sunlight concentration and compression ratio of the highly concentrated light device 1 is 20,000 times.

[0066] The fiber optic adapter 1321 is connected to the fiber optic end of the fiber optic transmission network, that is, the transmitting end of the fiber optic, to provide optical positioning and mechanical connection for the fiber optic transmitting end. One end of the fiber optic transmission network connected to the fiber optic adapter 1321 includes multiple optical fibers. The multiple optical fibers can be arranged in a circular pattern distribution on the end face of the fiber optic adapter 1321, or in a square pattern distribution, or in other pattern distribution arrangements, which depends on the requirements of the power generation device 2. The pattern presented by the fiber optic end on the end face of the fiber optic adapter 1321 corresponds to the shape of the optical field distribution of the projector.

[0067] Specifically, the mechanical support mechanism 131 is set as a mechanical power mechanism including at least the pitch and horizontal biaxial rotation degrees of freedom, so as to be able to provide the pitch and horizontal biaxial rotation degrees of freedom for the highly concentrated light projector 132. More specifically, the mechanical support mechanism 131 can be manually adjusted, or a biaxial rotation mechanism introducing computer artificial intelligence algorithms and intelligent control, which automatically adjusts the horizontal angle and pitch angle of the mechanical support mechanism 131 according to the position of the power generation device 2, so that the highly concentrated light projector 132 can accurately project the highly concentrated light onto the power generation device 2.

[0068] In addition to adjusting the high-concentration light projection direction, the high-concentration light projection device 13 can also precisely adjust the light field distribution of the high-concentration light to better match the shape and area parameters of the photovoltaic power generation device 2.

[0069] The high-concentration light projection device 13 adjusts its sunlight projection direction according to the position of the power generation device 2, that is, the horizontal angle and the pitch angle, and adjusts the light field distribution of the high-concentration light according to the shape and area that the power generation device 2 needs to match, that is, the shape and size of the light spot. The power generation device 2 includes a photovoltaic cell chip 21. The shape and area that the power generation device 2 matches are the shape and area of the photovoltaic cell chip 21. By adjusting the shape and size of the light spot to be the same as the shape and size of the photovoltaic cell chip 21, the power generation efficiency and power generation amount of the power generation device 2 can be maximally improved.

[0070] Specifically, the power generation device 2 further includes a radiator 22.

[0071] Specifically, the photovoltaic cell chip 21 is selected as a high-performance photovoltaic cell. Generally, a high-efficiency semiconductor photovoltaic cell chip 21 with high photoelectric conversion efficiency and wide working range is selected, including a multi-junction photovoltaic cell chip 21 made of III-V or II-VI compound semiconductor materials such as gallium arsenide (GaAs), gallium nitride (GaN), indium phosphide (InP), zinc telluride (ZnTe), or cadmium sulfide (CdS), and a perovskite solar photovoltaic cell chip 21, etc. It has high photosensitivity, high conversion efficiency, wide light intensity working range, and good temperature characteristics, and can still work stably even under thousands or tens of thousands of times of sunlight. The higher the photoelectric conversion efficiency, the more high-concentration sunlight is converted into electric energy, and the less sunlight is converted into heat energy; the wider the working range means that the photovoltaic cell chip 21 can still work stably under higher-concentration sunlight, more light energy is converted into electric energy, and the required area of the photovoltaic chip is smaller.

[0072] The photovoltaic cell chip 21 can be square, circular, or any other shape, but it must be consistent with the light field distribution of the high-concentration light projected by the high-concentration light projection device 13, that is, the shape of the light spot, in order to achieve the best photovoltaic power generation effect.

[0073] Because the concentration ratio is very high and the photovoltaic current density per unit area is very high, a large amount of redundant heat is generated in the photovoltaic cell chip 21. The photovoltaic cell chip 21 must be welded to the radiator 22 to dissipate a large amount of redundant heat, and to ensure the normal operation of the photovoltaic cell chip 21 without being burned out.

[0074] The radiator 22 can be a multi-tooth metal heat sink mechanism, an integrated heat pipe or a liquid cooling system, a phase change radiator mechanism, or other forms of radiator mechanisms.

[0075] Embodiment 2: Application of a high-concentration photovoltaic power generation system. Refer to the appendix Figure 8 , the high-concentration photovoltaic power generation system described in Embodiment 1 is applied to mobile devices such as electric vehicles, drones, robots, and mobile intelligent terminals and is connected to their charging devices and motors 5. The charging device usually includes a charging management circuit (MPPT) 3 and a storage battery 4. The power generation device 2 generates a photovoltaic current under high-concentration illumination, which is stored in the storage battery 4 after passing through the management circuit 3. The storage battery 4 is connected to the motor 5, thereby providing the required electrical energy for the movement or other power output of the motor 5.

[0076] The storage battery 4 can be a power storage battery 4, a storage battery 4, a fuel cell battery 4, a chemical battery 4, a supercapacitor battery 4, a fuel cell battery 4, or a solid-state battery 4.

[0077] In view of the high-concentration light being focused and projected onto the photovoltaic cell chip 21, the photoelectric conversion efficiency and photovoltaic current density of the power generation device 2 are far higher than those of traditional photovoltaic power generation devices 2, and can quickly provide strong enough electrical energy supply for mobile devices such as electric vehicles, robots, drones, and mobile intelligent terminals in a very short time. The power generation device 2 is also connected to a DC-DC converter, an MPPT (maximum power point tracking) controller, and a high-performance storage battery 4 or supercapacitor at the back to efficiently convert, regulate, and store the electrical energy generated by the photovoltaic cell to meet the light supplement power generation and charging requirements of mobile devices such as electric vehicles, drones, robots, and mobile intelligent terminals.

[0078] The concentration multiple of the high-concentration device 1 is at least 100 times, and even more than thousands of times. If the sunlight with a concentration multiple as high as thousands of times is projected onto the photovoltaic cell chip 21 and the photovoltaic cell chip 21 can still work stably under sunlight with a concentration multiple of thousands of times, then under the same power demand, the area of the photovoltaic cell will also decrease proportionally by thousands of times. That is to say, under the condition of generating the same amount of electricity, the required area and weight of the photovoltaic cell chip 21 will also be reduced by thousands of times. In this way, the volume and weight of the photovoltaic cell chip 21 will become very small and light, so that the additional load weight and volume when installed on a mobile device can be almost ignored. This also makes it possible for mobile devices such as electric vehicles, robots, drones, and mobile intelligent terminals to directly install the photovoltaic power generation device 2, and the installation position can be flexibly adjusted according to factors such as the shape of the mobile device such as an electric vehicle, which can meet the needs of different application scenarios and users.

[0079] The collection device 11 is installed and fixed in a sunny place to facilitate high-power concentration and compression of natural sunlight. The receiving end of the transmission device 12 is connected to the collector to collect and transmit the highly concentrated sunlight, and then transmit it to the projection device 13. The projection device 13 can move within the length range of the optical fiber of the transmission device 12 to select the most suitable position for high-concentration light projection. When supplementary light power generation and charging are required, the mobile device enters the projection range of the projection device 13. The projection device 13 can adjust the high-concentration light projection direction and light field distribution according to the position of the power generation device 2 on the mobile device and the shape parameters of the power generation device 2, so as to accurately project the high-concentration light onto the photovoltaic power generation device 2 for supplementary light power generation and charging.

[0080] Furthermore, the power generation device 2 can be installed on a moving device, such as a moving electric vehicle, robot or unmanned aircraft. The projection device 13 can be set as a mechanical support mechanism 131 that rotates horizontally and pitchwise under the precise control of artificial intelligence and a zoom lens 1322 that can change the light field distribution under the control of artificial intelligence. The projection device 13 can accurately project the high-concentration light with a specific horizontal angle, pitch angle and specific light field distribution shape onto the photovoltaic cell chip 21 according to the position of the power generation device 2 and the shape and size of the photovoltaic cell chip 21, so as to maximize the photoelectric conversion efficiency and photovoltaic power generation.

[0081] More specifically, the projection device 13 can be set to be intelligently controllable and can continuously track the position of the power generation device 2 in motion, so as to continuously project the high-concentration light accurately onto the photovoltaic cell chip 21.

[0082] More specifically, the natural sunlight in this application can be directly from the sun, or indirectly from the sun, such as from the moon, or can also be the light energy from artificial light sources. The artificial light sources include semiconductor lasers, semiconductor LED light sources, fiber lasers, high-pressure sodium lamps, metal halide lamps, electrodeless lamps, xenon lamps, etc.

[0083] An example of applying the high-concentration photovoltaic power generation system in Embodiment 1 to an electric vehicle: See Appendix Figure 9 , the power generation device 2 is installed on the side of the electric vehicle body and is connected to the management circuit 3 and the power storage battery 4 installed at the bottom of the vehicle body to provide power for the motor 5, thus forming a high-concentration solar electric vehicle.

[0084] The collection device 11 is set in an open area exposed to the sun. The optical fiber transmission network is connected to the collection device 11 and extends to a place close to a road, which can be called a "light supplement station", that is, the place where electric vehicles supplement "high-concentration light" energy. A projection device 13 is installed in the light supplement station. The projection device 13 is connected to the collection device 11 exposed to the sun through the optical fiber transmission network.

[0085] The projection device 13 is set to be shaped like a gun and named "gun-shaped high-concentration light projection device 13", which includes an optical fiber adapter 1321 and a zoom lens 1322, and is connected to the transmitting end of the optical fiber to receive high-concentration light from the collector and the optical fiber transmission network. It should be noted that if the projection device 13 performs ultra-short-distance projection of high-concentration light on the power generation device 2, the zoom lens 1322 can also be omitted.

[0086] Apply the high-concentration light photovoltaic power generation system in the first embodiment to electric vehicles for static high-concentration light projection photovoltaic power generation and charging.

[0087] See the appendix Figure 10 , the power generation device 2 is set on the top of the electric vehicle body, and the projection device 13 is set farther away. When high-concentration light power generation is required, the power generation device 2 stands upright on the top of the electric vehicle body so that the high-concentration light projection device 13 can identify and capture the power generation device 2, and then the projection device 13 remotely and accurately projects the high-concentration light onto the photovoltaic cell chip 21.

[0088] During the process of power generation and charging, the electric vehicle can be static or dynamic.

[0089] When the power generation device 2 is applied to a robot, the power generation device 2 can be set on the chest or back of the robot. When the robot needs to perform high-concentration light power generation, it only needs to move the robot to a certain distance from the projection device 13, and the high-concentration light can be projected onto the power generation device 2 on the chest or back of the robot through the projection device 13 to achieve high-concentration light power generation and charging.

[0090] When the power generation device 2 is applied to a mobile intelligent terminal, the power generation device 2 can be installed on the back of the mobile intelligent terminal. A card frame structure for placing the mobile intelligent terminal is correspondingly set. When charging, the back of the mobile intelligent terminal is placed into the card frame structure, so that the projection device 13 can accurately project the high-concentration light onto the photovoltaic cell chip 21 on the mobile intelligent terminal.

[0091] The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the concept of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present invention should also be regarded as within the protection scope of the present invention.

Claims

1. A high-concentration photovoltaic power generation system, characterized in that: It includes a high-concentration device (1) and a power generation device (2); The high-concentration device (1) includes a collection device (11), and the collection device (11) is used for highly concentrating, compressing and collecting natural sunlight; A transmission device (12), the transmission device (12) is connected to the high-concentration collection device (11) and is used for transmitting the high-concentrated light formed after highly concentrating and compressing natural sunlight; And a projection device (13), the projection device (13) is connected to the transmission device (12) and is used for projecting the high-concentrated light transmitted by the transmission device (12); The power generation device (2) is used for receiving the high-concentrated light projected by the projection device (13) and converting the high-concentrated light into electric energy.

2. The high-concentration photovoltaic power generation system according to claim 1, wherein: The distance between the high-concentration device (1) and the power generation device (2) is set to be a short distance or a long distance.

3. A high-concentration photovoltaic power generation system according to claim 1, characterized in that: When the high-concentration device (1) projects high-concentrated light to the power generation device (2), the power generation device (2) is static or dynamic.

4. A high-concentration photovoltaic power generation system according to claim 1, characterized in that: The alignment between the high-concentration device (1) and the power generation device (2) is set to be manual alignment or intelligent control alignment.

5. A high-concentration photovoltaic power generation system according to claim 1, characterized in that: The power generation device (2) is set to be a movable power generation device (2) or a fixed power generation device (2).

6. The high-concentration photovoltaic power generation system according to claim 1, wherein: The high-concentration device (1) projects high-concentrated light to one or more power generation devices (2).

7. A high-concentration photovoltaic power generation system according to claim 1, characterized in that: The light concentration multiple of the high-concentration device (1) is set to be at least 100 times, and the area of the corresponding power generation device (2) is reduced by the corresponding multiple to reduce the weight and volume of the power generation device (2).

8. A high-concentration photovoltaic power generation system according to claim 1, characterized in that: The collection device (11) includes a daylighting plate (111); An optical lens (112), the optical lens (112) is arranged on the daylighting plate (111) and at least one optical lens (112) is arranged on the daylighting plate (111), and the optical lens (112) is used for focusing and compressing natural sunlight; And an optical fiber connector (113), each optical fiber connector (113) corresponds to an optical lens (112), the sunlight focused and compressed by the optical lens (112) is focused on the corresponding optical fiber connector (113), and the optical fiber connector (113) is connected to the transmission device (12).

9. A high-concentration photovoltaic power generation system according to claim 8, characterized in that: The collection device (11) further includes a biaxial power mechanism (114), and the biaxial power mechanism (114) is used for driving the daylighting plate (111) to track the position of the sun; And a sun sensor (115), the sun sensor (115) is arranged on the daylighting plate (111) to obtain the position of the sun.

10. A high-concentration photovoltaic power generation system according to claim 8, characterized in that: The optical lens (112) is set to be spherical, quasi-spherical or non-spherical.

11. A high-concentration photovoltaic power generation system according to claim 8, characterized in that: The transmission device (12) is set to be an optical fiber transmission network, one end of the optical fiber transmission network is connected to an optical fiber receiver, and the other end is connected to the projection device (13).

12. A high-concentration photovoltaic power generation system according to claim 11, characterized in that: The optical fiber transmission network is set to be an optical fiber bundle formed by bundling multiple optical fibers or a single optical fiber.

13. A high-concentration photovoltaic power generation system according to claim 11, characterized in that: The length of the optical fiber transmission network is set according to the range required for the movement of the projection device (13) so that the projection device (13) can move freely within the length range of the optical fiber transmission network.

14. A high-concentration photovoltaic power generation system according to claim 11, characterized in that: One end of the optical fiber transmission network connected to the optical fiber connector (113) is set as the front end. The front end of the optical fiber transmission network is set as an optical fiber bundle composed of multiple optical fibers, and the multiple optical fibers are respectively connected to multiple optical fiber connectors (113).

15. A high-concentration photovoltaic power generation system according to claim 11 or claim 14, characterized in that: One end of the optical fiber transmission network connected to the projection device (13) is set as a single optical fiber or an optical fiber bundle composed of multiple optical fibers; The optical fibers forming the optical fiber bundle are set as a single optical fiber or an optical fiber formed by bundling multiple optical fibers together.

16. A high-concentration photovoltaic power generation system according to claim 11, characterized in that: The projection device (13) includes a high-concentration projector (132). The high-concentration projector (132) includes an optical fiber adapter (1321) connected to the optical fiber transmission network and a zoom lens (1322). The zoom lens (1322) adjusts the light field distribution of high-concentration light, that is, the size of the light spot, by adjusting the distance from the optical fiber adapter (1321).

17. A high-concentration photovoltaic power generation system according to claim 16, characterized in that: The projection device (13) further includes a mechanical support mechanism (131), and the high-concentration projector (132) is arranged on the mechanical support mechanism (131); The mechanical support mechanism (131) is set as a mechanical power mechanism having at least pitch and horizontal two-axis rotational degrees of freedom.

18. A high-concentration photovoltaic power generation system according to claim 1, characterized in that: The power generation device (2) includes a photovoltaic cell chip (21), and the photovoltaic cell chip (21) is used to convert high-concentration light into electrical energy.

19. A high-concentration photovoltaic power generation system according to claim 18, characterized in that: The photovoltaic cell chip (21) is set as a multi-junction photovoltaic cell chip (21).

20. A high-concentration photovoltaic power generation system according to claim 18, characterized in that: The shape and size of the photovoltaic cell chip (21) are consistent with the shape and size of the light spot projected by the high-concentration projection device (13).

21. A high-concentration photovoltaic power generation system according to claim 18, characterized in that: The power generation device (2) further includes a radiator (22), and the radiator (22) is used to dissipate heat from the photovoltaic cell chip (21); The radiator (22) is set as a metal heat sink mechanism, an integrated heat pipe or a liquid cooling system, or a phase change radiator (22) mechanism.

22. An application of a high-concentration photovoltaic power generation system, characterized in that: The power generation device (2) is applied to a mobile device and is connected to the charging device and the motor (5) of the mobile device; The mobile device includes an electric vehicle, a drone, a robot, and a mobile intelligent terminal.

23. The high-concentration photovoltaic power generation system application according to claim 22, characterized in that: The charging device includes a charging management circuit MPPT (3) and a storage battery (4), and the storage battery (4) is connected to the motor (5).

24. The application of the high-concentration photovoltaic power generation system according to claim 22, wherein: The projection device (13) is set to move within the length range of the optical fiber transmission network, so that the mobile device can enter the moving range of the projection device (13) to enable the projection device (13) to project high-concentration light onto the power generation device (2).

25. The application of the high-concentration photovoltaic power generation system according to claim 22, characterized in that: When the projection device (13) projects high-concentration light onto the power generation device (2), the power generation device (2) is on a moving mobile device. The mechanical support mechanism (131) and the zoom lens (1322) in the projection device (13) are set to be controlled by artificial intelligence to accurately project the high-concentration light onto the photovoltaic cell chip (21) of the moving power generation device (2).

26. The application of the high-concentration photovoltaic power generation system according to claim 22, characterized in that: The light collected by the high-concentration light device (1) is set as natural sunlight directly from the sun, natural sunlight indirectly from the sun, or light energy from an artificial light source; The natural sunlight indirectly from the sun includes natural sunlight from the moon; The artificial electric light sources include semiconductor lasers, semiconductor LED light sources, fiber lasers, high-pressure sodium lamps, metal halide lamps, electrodeless lamps, and xenon lamps.

27. The application of a highly concentrated photovoltaic power generation system according to claim 22, characterized in that: The power generation device (2) is arranged on the side of the electric vehicle body, the collection device (11) is arranged in an open area exposed to the sun, the projection device (13) is arranged in a site near a road, the site near the road is set as a supplementary lighting station, and the collection device (11) in the open area is connected to the projection device (13) at the supplementary lighting station through an optical fiber transmission network.

28. The application of the high-concentration photovoltaic power generation system according to claim 27, characterized in that: The projection device (13) is set as a gun-shaped projection device (13).

29. The application of the high-concentration photovoltaic power generation system according to claim 22, characterized in that: The power generation device (2) is arranged on the top of the electric vehicle body, and the power generation device (2) can move up or down on the top of the electric vehicle body; When the electric vehicle is charged, it is charged at a long distance from the projection device (13).

30. The high-concentration photovoltaic power generation system application according to claim 29, wherein: During the charging process of the electric vehicle, it is in a static or dynamic state.

31. The application of the high-concentration photovoltaic power generation system according to claim 22, wherein: The power generation device (2) is arranged on the chest or back of the robot.

32. The application of the high-concentration photovoltaic power generation system according to claim 22, characterized in that: The power generation device (2) is arranged on the mobile intelligent terminal.

33. The application of the high-concentration photovoltaic power generation system according to claim 32, characterized in that: It further includes a card frame structure. The power generation device (2) is arranged on the back of the mobile intelligent terminal, and the mobile intelligent terminal can be buckled in the card frame structure so that the high-intensity light projected by the projection device (13) is aligned with the photovoltaic cell chip (21) on the power generation device (2) on the back of the mobile intelligent terminal.

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