Solar panel dust removal device, solar dust removal system and solar panel dust removal method

Abstract

The invention relates to a solar panel dust removal device, a solar dust removal system and a solar panel dust removal method. The solar panel dust removal device comprises an upper electrode and a power module, wherein the upper electrode is arranged on the light receiving side of a solar panel at a preset distance; the power supply module is used for providing direct-current high-voltage electricity, a first output end of the power supply module is connected with the upper electrode, a second output end of the power supply module is connected with the metal frame or the metal supporting frame of the solar panel to form a lower electrode, and potential difference exists between the upper electrode and the lower electrode; and an electric field is formed between the upper electrode and the solar panel through capacitive coupling among the upper electrode, the lower electrode and the internal electrode of the solar panel. According to the invention, the solar panel metal frame or the metal support is connected with the power supply module, so that an electric field is formed between the upper electrode and the solar panel, dust on the solar panel is charged under the action of water vapor, and charged dust particles are separated from the solar panel under the action of the electric field, so that dust removal is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of electrostatic dust removal, and in particular to a solar panel dust removal device, a solar panel dust removal system and a solar panel dust removal method. Background Art

[0002] Solar energy resources are abundant and are an important renewable energy source. Driven by my country's powerful photovoltaic industry, photovoltaic power generation has been widely used around the world. However, large-scale photovoltaic power stations are often built in areas dominated by deserts, Gobi, and wastelands. Solar panels in these areas are easily covered with dust, which reduces the power generation efficiency. Regular dust removal and cleaning of solar panels is necessary to ensure power generation efficiency. The prior art proposes a method of using the solar panel's own electrode as the lower electrode, arranging the upper electrode at a certain distance on the solar panel, and using DC high voltage electrostatic dust removal. However, this scheme requires that one end of the high-voltage power supply be directly connected to the solar panel's own electrode, that is, the solar panel output electrode, which will make the solar system structure complicated and may also lead to safety issues. Summary of the invention

[0003] Based on this, it is necessary to provide a solar panel dust removal device to address the technical problems in the prior art that the solar panel's own electrodes are used as lower electrodes, upper electrodes are arranged on the solar panel at a certain interval, and a DC high-voltage electrostatic dust removal solution is used. However, this makes the solar system structure complex and also leads to safety issues.

[0004] A solar panel dust removal device, the solar panel dust removal device comprising:

[0005] An upper electrode, arranged at a preset distance on the light-receiving side of the solar panel;

[0006] A power module is used to provide DC high voltage electricity. The first output end of the power module is connected to the upper electrode, and the second output end of the power module is connected to the metal frame or metal support frame of the solar panel to form a lower electrode. There is a potential difference between the upper electrode and the lower electrode. Through the capacitive coupling between the upper electrode, the lower electrode and the internal electrode of the solar panel, an electric field is formed between the upper electrode and the solar panel, so that the dust on the light-receiving side of the solar panel is charged with the assistance of water vapor, and the charged dust particles are separated from the surface of the solar panel under the action of the electric field.

[0007] In one embodiment, the upper electrode is a grid electrode.

[0008] In one embodiment, the first output terminal is a high voltage output terminal.

[0009] In one embodiment, the second output terminal is a reference ground terminal.

[0010] In one of the embodiments, the output voltage range of the high voltage output terminal is 5000V-10000V.

[0011] In one of the embodiments, the high voltage output end includes a positive high voltage end and a negative high voltage end, and the upper electrode is alternately connected to the positive high voltage end and the negative high voltage end.

[0012] In one embodiment, the solar panel dust removal device further comprises:

[0013] A moving mechanism, the upper electrode is connected to the moving mechanism, and the moving mechanism is used to drive the upper electrode to move relative to the solar panel to remove dust from each of the solar panels arranged in an array; and / or,

[0014] a water vapor generating member, the water vapor generating member being disposed on one side of the upper electrode, the water vapor generating member being used to generate water vapor to assist in charging dust on the light-receiving side of the solar panel; and / or,

[0015] A wind force generating member is arranged on one side of the upper electrode and is used to generate wind force to blow out dust detached from the surface of the solar panel.

[0016] The present invention also provides a solar dust removal system, which can solve at least one of the above technical problems.

[0017] A solar dust removal system comprises a solar panel and the above-mentioned solar panel dust removal device;

[0018] The solar dust removal system also includes a metal frame, which is installed on the edges of the solar panel and electrically connected to the second output end; or, the solar dust removal system also includes a metal support frame, the solar panel is installed on the metal support frame, and the metal frame is electrically connected to the second output end.

[0019] In one embodiment, the solar panel is inclined relative to a horizontal plane.

[0020] The present invention also provides a solar panel dust removal method, which can solve at least one of the above technical problems.

[0021] A solar panel dust removal method, using any of the solar panel dust removal devices described above, comprises the following steps:

[0022] Disposing upper electrodes on the light-receiving side of the solar panel at a preset spacing;

[0023] Connecting the upper electrode to the first output terminal of the power module, and connecting the metal frame or metal support frame of the solar panel to the second output terminal of the power module to form a lower electrode, wherein there is a potential difference between the upper electrode and the lower electrode;

[0024] Through capacitive coupling between the upper electrode, the lower electrode and the internal electrode of the solar panel, an electric field is formed between the upper electrode and the solar panel, so that the dust on the light-receiving side of the solar panel is charged with the assistance of water vapor, and the charged dust particles are detached from the surface of the solar panel under the action of the electric field.

[0025] Beneficial effects:

[0026] The solar panel dust removal device provided in an embodiment of the present invention includes an upper electrode and a power module. The upper electrode is used to be arranged on the light-receiving side of the solar panel at a preset distance; the power module is used to provide DC high voltage electricity, the first output end of the power module is connected to the upper electrode, and the second output end of the power module is connected to the metal frame or metal support frame of the solar panel to form a lower electrode. There is a potential difference between the upper electrode and the lower electrode. Through capacitive coupling between the upper electrode, the lower electrode and the internal electrodes of the solar panel, an electric field is formed between the upper electrode and the solar panel, so that the dust on the light-receiving side of the solar panel is charged with the assistance of water vapor, and the charged dust is separated from the surface of the solar panel under the action of the electric field. In the present application, the upper electrode is connected to the first output end of the power module, and the lower electrode is connected to the second output end of the power module, so that a first capacitor is formed between the upper electrode and the lower electrode, a second capacitor is formed between the upper electrode and the internal electrode of the solar panel, and a third capacitor is formed between the internal electrode of the solar panel and the lower electrode. Through coupling between the first capacitor, the second capacitor and the third capacitor, a high-voltage electric field is formed between the upper electrode and the solar panel. That is, in the present application, the internal electrode of the solar panel is not connected to the power module, but is only connected to the power module through the metal frame or metal bracket of the solar panel, so that an electric field is formed between the upper electrode and the solar panel, so that under the action of water vapor, the dust on the light-receiving side of the solar panel is charged, and under the action of the electric field, the charged dust particles are separated from the solar panel, and can be moved out of the solar panel under the action of gravity or wind, so as to achieve dust removal, simplify the structure, and improve the safety of dust removal.

[0027] The present invention also provides a solar dust removal system, comprising a solar panel and the above-mentioned solar panel dust removal device; the solar dust removal system also includes a metal frame, the metal frame is installed at the edges of the solar panel, and the metal frame is electrically connected to the second output end; or, the solar dust removal system also includes a metal support frame, the solar panel is installed on the metal support frame, and the metal support frame is electrically connected to the second output end. The solar dust removal system can achieve at least one of the above-mentioned technical effects.

[0028] The present invention also provides a solar panel dust removal method, using any of the solar panel dust removal devices described above, comprising the following steps:

[0029] Disposing upper electrodes on the light-receiving side of the solar panel at a preset spacing;

[0030] Connecting the upper electrode to the first output terminal of the power module, and connecting the metal frame or metal support frame of the solar panel to the second output terminal of the power module to form a lower electrode, wherein there is a potential difference between the upper electrode and the lower electrode;

[0031] Through the capacitive coupling between the upper electrode, the lower electrode and the internal electrode of the solar panel, an electric field is formed between the upper electrode and the solar panel, so that the dust on the light-receiving side of the solar panel is charged with the assistance of water vapor, and the charged dust is separated from the surface of the solar panel under the action of the electric field. The solar panel dust removal method can achieve at least one of the above technical effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] FIG. 1 is a schematic diagram of a solar panel dust removal device provided by an embodiment of the present invention.

[0033] FIG. 2 is a partial schematic diagram of a solar panel dust removal device provided in an embodiment of the present invention.

[0034] FIG. 3 is a schematic diagram of a capacitor network between an upper electrode, a lower electrode and an internal electrode of a solar panel in a solar panel dust removal device provided by an embodiment of the present invention.

[0035] FIG. 4 is an experimental diagram of the dust removal effect of a solar panel dust removal device provided in an embodiment of the present invention.

[0036] Figure Number:

[0037] 100 - upper electrode; 200 - power module; 210 - first output terminal; 220 - second output terminal; 300 - solar panel; 310 - metal frame; 320 - internal electrode; 330 - charged dust particles. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0039] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0041] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0043] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0044] Referring to Figures 1, 2 and 3, Figure 1 is a schematic diagram of a solar panel dust removal device provided by an embodiment of the present invention. Figure 2 is a partial schematic diagram of a solar panel dust removal device provided by an embodiment of the present invention. Figure 3 is a schematic diagram of a capacitor network between an upper electrode, a lower electrode and an internal electrode of a solar panel in a solar panel dust removal device provided by an embodiment of the present invention. An embodiment of the present invention provides a solar panel dust removal device, including an upper electrode 100 and a power module 200, wherein the upper electrode 100 is used to be arranged at a preset distance on the light-receiving side of a solar panel 300; the power module 200 is used to provide DC high voltage electricity, a first output end 210 of the power module 200 is connected to the upper electrode 100, and a second output end 220 of the power module 200 is connected to a metal frame 310 or a metal support frame of the solar panel 300 to form a lower electrode, and there is a potential difference between the upper electrode 100 and the lower electrode, and an electric field is formed between the upper electrode 100 and the solar panel 300 through capacitive coupling between the upper electrode 100, the lower electrode and the internal electrode 320 of the solar panel 300, so that the dust on the light-receiving side of the solar panel 300 is charged with the assistance of water vapor, and the charged dust particles 330 are separated from the solar panel 300 under the action of the electric field.

[0045] Specifically, in the present application, the upper electrode 100 is connected to the first output terminal 210 of the power module 200, and the lower electrode is connected to the second output terminal of the power module 200, so that a first capacitor C1 is formed between the upper electrode 100 and the lower electrode, a second capacitor C2 is formed between the upper electrode 100 and the internal electrode 320 of the solar panel 300, and a third capacitor C3 is formed between the internal electrode 320 of the solar panel 300 and the lower electrode. Through the coupling between the first capacitor C1, the second capacitor C2 and the third capacitor C3, a high voltage electric field is formed between the upper electrode 100 and the solar panel 300, that is, the solar panel 300 in the present application. 00 The internal electrode 320 is not connected to the power module 200, but is only connected to the power module 200 through the metal frame 310 of the solar panel 300 or the metal support frame, thereby forming an electric field between the upper electrode 100 and the solar panel 300, so that under the action of water vapor, the dust on the light-receiving side of the solar panel 300 is charged, and under the action of the electric field, the charged dust particles 330 are separated from the solar panel 300 and approach the upper electrode 100, so that they can be moved out of the solar panel 300 area under the action of gravity or wind, thereby achieving dust removal, simplifying the structure, and improving the safety of dust removal.

[0046] The solar panel 300 is divided into a framed solar panel 300 and a frameless solar panel 300. When the solar panel 300 is a framed solar panel 300, the frame is made of metal, so that after the metal frame 310 is connected to the second output end 220 of the power module 200, a capacitor can be formed between the upper electrode 100. When the solar panel 300 is a frameless solar panel 300, the frameless solar panel 300 is fixed on a support frame, and the support frame is made of metal, so that after the metal support frame is connected to the second output end 220 of the power module 200, a capacitor can be formed between the upper electrode 100.

[0047] It should be noted that, since the third capacitor C3 is much larger than the second capacitor C2, and the charges on the electrodes of the series capacitors are equal, according to the voltage formula of the series capacitors It can be inferred that the voltage V2 between the upper electrode 100 and the internal electrode 320 of the solar panel 300 is much larger than the voltage V3 between the internal electrode 320 of the solar panel 300 and the lower electrode, that is, the voltage V2 between the upper electrode 100 and the internal electrode 320 of the solar panel 300 occupies most of the voltage V1 applied between the upper electrode 100 and the lower electrode by the high-voltage power supply, thereby forming a high-voltage electric field between the upper electrode 100 and the solar panel 300.

[0048] Referring to Figures 1, 2 and 3, in one embodiment, the upper electrode 100 is a grid electrode, that is, the grid electrode has a plurality of grid holes, and the charged dust particles 330 separated from the solar panel 300 and bounced up can pass through the grid holes on the grid electrode to reach farther upward, and fall back through the grid holes under the action of gravity. Under the action of the electric field, the charged dust particles 330 are repeatedly bounced up from the solar panel 300 until the charged dust particles 330 move out of the solar panel 300 area for dust removal, thereby improving the dust removal rate of the solar panel dust removal device.

[0049] Referring to Figures 1, 2 and 3, in one embodiment, the first output terminal 210 is a high-voltage output terminal, the upper electrode 100 is connected to the high-voltage output terminal, the second output terminal 220 is a low-voltage terminal or a reference ground terminal, and the lower electrode is connected to the second output terminal, so that the metal frame 310 or the metal support frame of the solar panel 300 is connected to the low-voltage terminal or the reference ground terminal, thereby preventing electric shock and improving the safety performance of the solar panel dust removal device.

[0050] Referring to FIG. 1 and FIG. 2, in one embodiment, the second output terminal 220 is a reference ground terminal, and the lower electrode is connected to the reference ground terminal, thereby forming a certain electric field line with the upper electrode, and the electric field line causes the charged particles moving out of the grid hole to move along the direction of the electric field distribution, so that some of the charged particles can move to the blind area below the grid electrode, thereby improving the uniformity of dust charging on the light-receiving side of the solar panel 300, avoiding that most of the charged particles moving out of the grid hole move in a straight line to the solar panel, and at the same time, further improving the safety performance of the solar panel dust removal device. It should be noted that the metal support frame or metal frame 310 has been connected to the ground, and the setting of connecting the metal support frame or metal frame 310 to the reference ground terminal can improve the stability of the lower electrode voltage, thereby improving the reliability of the solar panel dust removal device.

[0051] Refer to Figures 1, 2 and 4, Figure 4 is a dust removal effect experimental diagram of a solar panel dust removal device provided by an embodiment of the present invention. In one embodiment, the output voltage range of the high-voltage output terminal is 5000V-10000V. Referring to a, b, c, and d in Figure 4 of the specification, it can be seen that the horizontal axis is time, the vertical axis is dust removal efficiency, and the voltage output by the first output terminal 210 is 5000V, 6000V, 7000V and 8000V. The dust removal effect diagram of the solar panel dust removal device is shown, wherein the labels 1, 2 and 3 are three groups of experimental results under the same environment, respectively. It can be seen that when the voltage is greater than or equal to 6kV, the dust removal rate can reach or exceed 90%, indicating that when the high-voltage power supply is not directly connected to the internal electrode 320 of the solar panel 300, the solar panel dust removal device in this application can also obtain a good dust removal effect.

[0052] 1 and 2 , in one embodiment, the high voltage output terminal includes a positive high voltage terminal and a negative high voltage terminal, and the upper electrode 100 is alternately connected to the positive high voltage terminal and the negative high voltage terminal.

[0053] Specifically, when the upper electrode 100 is connected to the positive high voltage terminal, the negatively charged dust particles on the solar panel 300 can be subjected to a force moving away from the solar panel 300, and when the upper electrode 100 is connected to the negative high voltage terminal, the positively charged dust particles on the solar panel 300 can be subjected to a force moving away from the solar panel 300, thereby preventing the accumulation of charges of a specific polarity on the light-receiving side of the solar panel 300, and allowing both the positively charged and negatively charged dust particles on the solar panel 300 to approach the upper electrode 100 to be removed, thereby increasing the dust removal efficiency.

[0054] It should be noted that the upper electrode 100 can be repeatedly connected to the positive high voltage terminal and the negative high voltage terminal alternately, or can be alternated only once. Preferably, the time interval for the upper electrode 100 to be alternately connected to the positive high voltage terminal and the negative high voltage terminal ranges from 30s to 300s.

[0055] Referring to FIG. 1 and FIG. 2 , in one embodiment, the solar panel dust removal device further includes a moving mechanism, the upper electrode 100 is connected to the moving mechanism, and the moving mechanism is used to drive the upper electrode 100 to move relative to the solar panel, so as to remove dust from each solar panel arranged in an array. The power module 200 is installed on the moving mechanism.

[0056] 1 and 2 , in one embodiment, the solar panel dust removal device further includes a water vapor generating element, which is disposed on one side of the upper electrode 100 , and is used to generate water vapor to assist in charging dust on the light-receiving side of the solar panel 300 .

[0057] Specifically, in the present application, the dust on the light-receiving side of the solar panel 300 can be charged with the assistance of water vapor in the air under an electric field. In the present application, the water vapor generating component is provided so that the solar panel dust removal device is not restricted by environmental factors when performing dust removal. That is, when the water vapor content in the air is low and affects the charging of the dust on the light-receiving side of the solar panel 300, the water vapor generated by the water vapor generating component is used to assist the charging of the dust on the light-receiving side of the solar panel 300, thereby improving the reliability of the solar panel dust removal device.

[0058] In other embodiments, the solar panel dust removal device in this embodiment can only rely on water vapor in the air to achieve dust charging on the light-receiving side of the auxiliary solar panel 300.

[0059] Referring to Figures 1 and 2, in one embodiment, the solar panel dust removal device also includes a wind generating member, which is arranged on one side of the upper electrode 100. The wind generating member is used to generate wind toward the area between the solar panel 300 and the upper electrode 100 to blow out the charged dust particles 330 floating in the area between the solar panel 300 and the upper electrode 100, thereby improving the dust removal efficiency.

[0060] Referring to Figures 1, 2 and 3, in one embodiment, the embodiment of the present invention also provides a solar dust removal system, including a solar panel 300 and the above-mentioned solar panel dust removal device; the solar dust removal system also includes a metal frame 310, the metal frame 310 is installed at the edges of the solar panel 300, and the metal frame 310 is electrically connected to the second output terminal 220; or, the solar dust removal system also includes a metal support frame, the solar panel 300 is installed on the metal support frame, and the metal support frame is electrically connected to the second output terminal 220.

[0061] Specifically, the solar panel 300 is divided into a framed solar panel 300 and a frameless solar panel 300. When the solar panel 300 is a framed solar panel 300, the metal frame 310 is connected to the second output end 220 of the power module 200, so as to form a capacitor with the upper electrode 100. When the solar panel 300 is a frameless solar panel 300, the frameless solar panel 300 is fixed on a metal support frame, and the metal support frame is connected to the second output end 220 of the power module 200, so as to form a capacitor with the upper electrode 100.

[0062] Referring to FIG. 1 , in one embodiment, the solar panel 300 is tilted relative to the horizontal plane, so that the charged dust particles 330 are subjected to a component force toward the lower side of the solar panel 300 under the action of gravity and the electric field, so that during the process of the charged dust particles 330 repeatedly bouncing relative to the upper electrode 100, they can gradually move toward the lower side of the solar panel 300 for dust removal.

[0063] It should be noted that when the charged dust particles 330 bounce relative to the solar panel 300, since the charged dust particles 330 float in the air, they can be moved out of the area between the solar panel 300 and the upper electrode 100 under the action of wind or other external forces for dust removal.

[0064] Referring to FIG. 1 , FIG. 2 and FIG. 3 , in one embodiment, the present invention further provides a method for removing dust from a solar panel 300 , using any of the solar panel dust removal devices described above, comprising the following steps:

[0065] The upper electrode 100 is arranged on the light-receiving side of the solar panel 300 at a preset interval;

[0066] Connecting the upper electrode 100 to the first output terminal 210 of the power module 200, and connecting the metal frame 310 or the metal support frame of the solar panel 300 to the second output terminal 220 of the power module 200 to form a lower electrode, wherein there is a potential difference between the upper electrode 100 and the lower electrode;

[0067] Through capacitive coupling between the upper electrode 100, the lower electrode and the internal electrode 320 of the solar panel 300, an electric field is formed between the upper electrode 100 and the solar panel 300, so that the dust on the light-receiving side of the solar panel 300 is charged with the assistance of water vapor.

[0068] In the present application, the upper electrode 100 is connected to the first output terminal 210 of the power module 200, and the lower electrode is connected to the lower electrode of the power module 200, so that a first capacitor C1 is formed between the upper electrode 100 and the lower electrode, a second capacitor C2 is formed between the upper electrode 100 and the internal electrode 320 of the solar panel 300, and a third capacitor C3 is formed between the internal electrode 320 of the solar panel 300 and the lower electrode. Through the coupling between the first capacitor C1, the second capacitor C2 and the third capacitor C3, a high voltage electric field is formed between the upper electrode 100 and the solar panel 300, that is, the present application The internal electrode 320 of the solar panel 300 is not connected to the power module 200, but is only connected to the power module 200 through the metal frame 310 of the solar panel 300 or the metal support frame, thereby forming an electric field between the upper electrode 100 and the solar panel 300, so that under the action of water vapor, the dust on the light-receiving side of the solar panel 300 is charged, and under the action of the electric field, the charged dust particles 330 are separated from the solar panel 300, and can be moved out of the solar panel 300 under the action of external force, thereby achieving dust removal, simplifying the structure, and improving the safety of dust removal.

[0069] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0070] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A solar panel dust removal device, characterized in that: The solar panel dust removal device comprises: An upper electrode, arranged at a preset distance on the light-receiving side of the solar panel; A power module is used to provide DC high voltage electricity. The first output end of the power module is connected to the upper electrode, and the second output end of the power module is connected to the metal frame or metal support frame of the solar panel to form a lower electrode. There is a potential difference between the upper electrode and the lower electrode. Through the capacitive coupling between the upper electrode, the lower electrode and the internal electrode of the solar panel, an electric field is formed between the upper electrode and the solar panel, so that the dust on the light-receiving side of the solar panel is charged with the assistance of water vapor, and the charged dust particles are separated from the surface of the solar panel under the action of the electric field.

2. The solar panel dust removal device according to claim 1, characterized in that: The upper electrode is a grid electrode.

3. The solar panel dust removal device according to claim 1, characterized in that: The first output end is a high voltage output end.

4. The solar panel dust removal device according to claim 3, characterized in that: The second output terminal is a reference ground terminal.

5. The solar panel dust removal device according to claim 3, characterized in that: The output voltage range of the high voltage output terminal is 5000V-10000V.

6. The solar panel dust removal device according to claim 3, characterized in that: The high-voltage output end includes a positive high-voltage end and a negative high-voltage end, and the upper electrode is alternately connected to the positive high-voltage end and the negative high-voltage end.

7. The solar panel dust removal device according to any one of claims 1 to 6, characterized in that: The solar panel dust removal device also includes: A moving mechanism, the upper electrode is connected to the moving mechanism, and the moving mechanism is used to drive the upper electrode to move relative to the solar panel to remove dust from each of the solar panels arranged in an array; and / or, a water vapor generating member, the water vapor generating member being disposed on one side of the upper electrode, the water vapor generating member being used to generate water vapor to assist in charging dust on the light-receiving side of the solar panel; and / or, A wind force generating member is arranged on one side of the upper electrode and is used to generate wind force to blow out dust detached from the surface of the solar panel.

8. A solar dust removal system, characterized in that: A solar panel comprising a solar panel and a solar panel dust removal device according to any one of claims 1 to 7; The solar dust removal system also includes a metal frame, which is installed on the edges of the solar panel and electrically connected to the second output end; or, the solar dust removal system also includes a metal support frame, the solar panel is installed on the metal support frame, and the metal support frame is electrically connected to the second output end.

9. The solar dust removal system according to claim 8, characterized in that: The solar panel is inclined relative to a horizontal plane.

10. A method for removing dust from a solar panel, characterized in that: The solar panel dust removal device according to any one of claims 1 to 7 comprises the following steps: Disposing upper electrodes on the light-receiving side of the solar panel at a preset spacing; Connecting the upper electrode to the first output terminal of the power module, and connecting the metal frame or metal support frame of the solar panel to the second output terminal of the power module to form a lower electrode, wherein there is a potential difference between the upper electrode and the lower electrode; Through capacitive coupling between the upper electrode, the lower electrode and the internal electrode of the solar panel, an electric field is formed between the upper electrode and the solar panel, so that the dust on the light-receiving side of the solar panel is charged with the assistance of water vapor, and the charged dust particles are detached from the surface of the solar panel under the action of the electric field.

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