Multi-pulse DC photovoltaic power generation coupling device

Abstract

The utility model is applicable to the technical field of photovoltaic power generation, and provides a multi-pulse direct current photovoltaic power generation coupling device, which comprises a tunnel and a plurality of lighting devices in the tunnel, a plurality of photovoltaic power generation panel groups are arranged at the outer top of the tunnel, and each photovoltaic power generation panel group is provided with a pulse power supply; the plurality of lighting devices are grouped according to the group number of the photovoltaic power generation panel groups, and each pulse power supply converts current generated by the corresponding photovoltaic power generation panel group and transmits the current to the corresponding lighting device group; therefore, by adopting a high-frequency pulse output mode, long-distance transmission can be realized, and conversion between direct current and alternating current can be carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic power generation, in particular to a multi-pulse direct current photovoltaic power generation coupling device. Background Art

[0002] Tunnel lighting is a lighting measure taken to improve the road conditions in tunnels and enhance driving safety. At present, tunnel lighting mainly uses traditional mains electricity. Since most tunnel lighting lamps are kept on for a long time, they consume a lot of electricity, which brings an energy burden to society to a certain extent.

[0003] With the popularization of photovoltaic power generation, photovoltaic power generation has also begun to be applied to the field of tunnel lighting, such as a solar tunnel lighting device proposed in the patent application number CN201720611121.9; a solar photovoltaic panel is installed on the end face of the tunnel entrance to supply energy to the lighting device, thereby supplementing the tunnel entrance, reducing the proportion of tunnel lighting consuming municipal electricity and saving energy.

[0004] Although the above technical solution can power the lighting device, the current generated by the photovoltaic panels is direct current, and the transmission distance is limited, and long-distance transmission cannot be achieved; and the lighting device needs to use alternating current, and an inverter needs to be set up after the photovoltaic panels generate electricity to convert direct current into alternating current, which increases the cost.

[0005] As is known from the above, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0006] In view of the above-mentioned defects, the purpose of the present utility model is to provide a multi-pulse DC photovoltaic power generation coupling device, which adopts a high-frequency pulse output method, can achieve long-distance transmission, and can convert DC power into AC power.

[0007] In order to achieve the above-mentioned purpose, the utility model provides a multi-pulse DC photovoltaic power generation coupling device, including a tunnel and a number of lighting devices inside the tunnel, wherein a number of groups of photovoltaic power generation panels are installed on the outer top of the tunnel, and each group of the photovoltaic power generation panels is equipped with a pulse power supply; and the several lighting devices are grouped according to the number of photovoltaic power generation panel groups, and each of the pulse power supplies converts the current generated by its corresponding photovoltaic power generation panel group and transmits it to the corresponding lighting device group.

[0008] According to the multi-pulse direct current photovoltaic power generation coupling device described in the utility model, the area of ​​the photovoltaic power generation panel group is smaller as it is closer to the exit and the entrance of the tunnel.

[0009] According to the multi-pulse DC photovoltaic power generation coupling device described in the utility model, the closer the lighting equipment group is to the exit and the entrance of the tunnel, the lower the power is.

[0010] According to the multi-pulse DC photovoltaic power generation coupling device described in the utility model, each photovoltaic power generation group is equipped with an energy storage component, and the energy storage component is electrically connected to the corresponding photovoltaic power generation group and lighting equipment group.

[0011] According to the multi-pulse DC photovoltaic power generation coupling device described in the utility model, each lighting device group is externally connected to a power supply converter, a first end of the power supply converter is connected to a corresponding energy storage component, and a second end is connected to the mains.

[0012] According to the multi-pulse direct current photovoltaic power generation coupling device described in the utility model, a plurality of photovoltaic power generation panel groups are laid close to the outer top of the tunnel.

[0013] The utility model provides a multi-pulse DC photovoltaic power generation coupling device, which has the following beneficial effects:

[0014] 1. By using a pulse power supply to output high-frequency pulses, the direct current generated by the corresponding photovoltaic panel group is converted into alternating current with a certain pulse shape. Not only can the alternating current be transmitted to the corresponding lighting equipment group for use, but the transmission distance can also be extended.

[0015] 2. By setting the area of ​​the photovoltaic panel group closer to the tunnel exit and entrance to be smaller, the power of the lighting equipment group closer to the tunnel exit and entrance is set to be lower; the lighting equipment performs transitional fill light in the tunnel to ensure that the brightness in the tunnel does not change much, thus protecting the driver's eyes and indirectly reducing the accident rate at the tunnel exit and entrance.

[0016] 3. By setting up a power supply converter, when the weather is bad and there is no reserve power in the energy storage device, the power supply of the lighting equipment group can be switched to AC power through the power supply converter to prevent the lighting equipment group from being paralyzed, thereby reducing the accident rate in the tunnel in disguise. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a side sectional schematic diagram of the utility model;

[0019] Figure 3 It is a schematic diagram of the operation process of the utility model;

[0020] In the figure, 1-tunnel, 2-lighting equipment, 3-photovoltaic panel group, 4-pulse power supply, 5-energy storage device. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0022] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside", and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0023] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0024] See also Figures 1 to 3 , the utility model provides a multi-pulse DC photovoltaic power generation coupling device, including a tunnel 1 and a plurality of lighting devices 2 inside the tunnel 1;

[0025] Among them, several groups of photovoltaic panels 3 are installed on the outer top of the tunnel 1, which are laid close to the outer top of the tunnel 1, and several lighting devices 2 are grouped according to the number of photovoltaic panel groups 3; and each group of photovoltaic panel groups 3 is equipped with a pulse power supply 4; in this way, the pulse power supply 4 converts the direct current generated by the corresponding photovoltaic panel group 3 into alternating current with a certain pulse shape in the form of high-frequency pulse output, which can not only transmit the alternating current to the corresponding lighting device 2 group for use, but also extend the transmission distance.

[0026] See also Figure 1 , Figure 2Preferably, due to the great difference in brightness between the inside and outside of the tunnel 1, the outside of the tunnel 1 is not bright, while the inside of the tunnel 1 is extremely low in brightness; therefore, after the vehicle enters the tunnel 1 from the bright outside, it will take a while for the driver to see the inside of the tunnel 1 clearly, and this phenomenon is called "adaptation lag"; and in order to reduce the impact of "adaptation lag" on the driver and reduce the accident rate at the exit and entrance of the tunnel 1; the utility model sets the area of ​​the photovoltaic panel group 3 closer to the exit and entrance of the tunnel 1 to be smaller, and at the same time sets the power of the lighting device group 2 closer to the exit and entrance of the tunnel 1 to be lower; in this way, when the driver drives to the entrance of the tunnel 1, the outside Part of the light is irradiated into the tunnel 1. At this time, the area of ​​the photovoltaic panel group 3 is the smallest, the power of the corresponding lighting device group 2 is the lowest, and the generated lighting brightness is the lowest. While supplementing the light in the tunnel 1, it avoids excessive brightness from causing damage to the driver's eyes. As the driver continues to enter the tunnel 1, the external light cannot irradiate the tunnel 1. At this time, the area of ​​the photovoltaic panel group 3 gradually increases, the power of the corresponding lighting device group 2 gradually increases, and the generated lighting brightness also gradually becomes brighter, so as to perform transitional supplementary lighting in the tunnel 1, ensure that the brightness in the tunnel 1 does not change much, protect the driver's eyes, and reduce the accident rate at the exit and entrance of the tunnel 1 in disguise.

[0027] See also Figure 2 Preferably, each photovoltaic power generation group is equipped with an energy storage component 5, which is electrically connected to the corresponding photovoltaic power generation group and lighting equipment 2; it is used to store electricity and supply power to the lighting equipment 2 in bad weather.

[0028] See also Figure 3 Preferably, each group of lighting equipment 2 is externally connected to a power supply converter, and a first end of the power supply converter is connected to the corresponding energy storage device 5, and a second end is connected to the mains; in this way, when the weather is bad and there is no reserve power in the energy storage device 5, the power supply of the lighting equipment 2 can be switched to the mains through the power supply converter, so as to prevent the lighting equipment 2 from being paralyzed, thereby reducing the accident rate in the tunnel 1 in disguise.

[0029] It should be noted that the pulse power supply 4 of the present invention is a prior art and will not be described in detail here.

[0030] It should be noted that the power supply converter of the present invention is a prior art and will not be described in detail herein.

[0031] It should be noted that the energy storage component 5 of the present invention is a photovoltaic energy storage box, which is a prior art and will not be described in detail here; those skilled in the art may select other energy storage components 5 according to actual conditions.

[0032] It should be noted that the lighting device 2 of the present invention is an LED lamp, and those skilled in the art may select other lighting devices 2 according to actual conditions.

[0033] In summary, the utility model provides a multi-pulse DC photovoltaic power generation coupling device, which converts the DC power generated by the corresponding photovoltaic panel group into AC power with a certain pulse shape by using a pulse power supply to output high-frequency pulses, so that the AC power can not only be transmitted to the corresponding lighting equipment group for use, but also the transmission distance can be extended; by setting the area of ​​the photovoltaic panel group closer to the tunnel exit and entrance to be smaller, the power of the lighting equipment group closer to the tunnel exit and entrance is set to be lower; the lighting equipment performs transitional fill light in the tunnel to ensure that the brightness in the tunnel does not change much, protects the driver's eyes, and indirectly reduces the accident rate at the tunnel exit and entrance; by setting a power supply converter, the device can switch the power supply of the lighting equipment group to AC power through the power supply converter when the weather is bad and there is no reserve power in the energy storage device, so as to prevent the lighting equipment group from being paralyzed, and indirectly reduce the accident rate in the tunnel.

[0034] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field can make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A multi-pulse DC photovoltaic power generation coupling device, comprising a tunnel and a plurality of lighting devices inside the tunnel, characterized in that: Several groups of photovoltaic panels are installed on the outer top of the tunnel, and each group of photovoltaic panels is equipped with a pulse power supply; and several lighting devices are grouped according to the number of photovoltaic panel groups, and each pulse power supply converts the current generated by its corresponding photovoltaic panel group and transmits it to the corresponding lighting device group.

2. The multi-pulse DC photovoltaic power generation coupling device according to claim 1, characterized in that: The closer to the exit and entrance of the tunnel, the smaller the area of ​​the photovoltaic panel group.

3. The multi-pulse DC photovoltaic power generation coupling device according to claim 2, characterized in that: The closer the lighting device groups are to the exit and the entrance of the tunnel, the lower the power.

4. The multi-pulse DC photovoltaic power generation coupling device according to claim 3, characterized in that: Each photovoltaic power generation group is equipped with an energy storage component, and the energy storage component is electrically connected to the corresponding photovoltaic power generation group and lighting equipment group.

5. The multi-pulse DC photovoltaic power generation coupling device according to claim 4, characterized in that: Each lighting device group is externally connected to a power supply converter, a first end of the power supply converter is connected to a corresponding energy storage component, and a second end is connected to the mains.

6. The multi-pulse DC photovoltaic power generation coupling device according to claim 1, characterized in that: The plurality of photovoltaic panel groups are laid close to the outer top of the tunnel.

Images