Intelligent photovoltaic module

Abstract

The utility model relates to the field of solar photovoltaic technology, and discloses an intelligent photovoltaic assembly, which comprises a photovoltaic panel and an MLPE device. The photovoltaic panel comprises at least two parallel units, and any two adjacent parallel units are connected in series through a welding strip or a wire. The MLPE device is arranged on one side of the photovoltaic panel and comprises a circuit board, a control module is arranged on the circuit board, and the control module at least comprises one of a monitor, a turn-off device, an optimizer and an inverter; a series circuit between any two adjacent parallel units is electrically connected with the control module through a first welding strip, and after the parallel units are connected in series, the positive electrode and the negative electrode of the whole are electrically connected with the control module through second welding strips. According to the utility model, a problem that large hidden troubles are caused to stable operation of the photovoltaic assembly because the number of wiring holes and joints on the photovoltaic assembly is large is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to solar photovoltaic technology field, concretely relates to an intelligent photovoltaic module. BACKGROUND

[0002] The photovoltaic module is a device for converting photovoltaic module into electric energy, and the photovoltaic module comprises a plurality of cell pieces capable of converting light energy into electric energy, and the cell pieces are connected in series or parallel with each other and output electric energy together.

[0003] In the prior art, referring to Figure 1 , a plurality of cell pieces are connected in series to form a cell string, and two cell strings are connected in parallel to form a parallel unit, and a plurality of parallel units are connected in series to form an overall photovoltaic module, and the photovoltaic module generally comprises a plurality of junction boxes, each junction box leads out the positive and negative electrodes of each cell string and is provided with a diode connected in parallel with the cell string to prevent hot spot effect of the photovoltaic module and reduce mismatched power generation loss caused by cell string failure. At the same time, the photovoltaic module equipped with an external independent MLPE device needs at least three joints to realize the connection of the positive electrode of the photovoltaic panel and the MLPE device, the connection of the negative electrode of the photovoltaic panel and the MLPE device, and the input and output of the MLPE device itself, which causes great hidden danger to the stable operation of the photovoltaic module.

[0004] Referring to Figure 2 , some existing intelligent photovoltaic module schemes use MLPE (Module-Level Power Electronics, module-level power electronics) modules integrated in the above-mentioned junction boxes for controlling and monitoring the photovoltaic module or the cell string, including a circuit board and control elements integrated on the circuit board for realizing monitoring, circuit breaking or adjusting power output, and a plurality of parallel units are respectively connected to the circuit board and electrically connected with the corresponding control elements, or a plurality of parallel units are connected in series and then connected to the circuit board together, so as to realize the control of the photovoltaic module. As shown in Figure 2 , this scheme needs to set a plurality of MLPE modules corresponding to a plurality of cell strings, which not only increases the equipment cost, but also increases the sampling, control and / or communication difficulty.

[0005] In addition, since the photovoltaic panel of the photovoltaic module is a multi-layer structure, the cell pieces and the welding strips and the like are clamped between the two transparent glasses, so it is necessary to open a wiring hole on the glass plate to facilitate the leading out of the welding strip or the cable, and then connect the control element of the MLPE device, and at the same time, in order to avoid mixed wiring, short circuit and the like, each wiring hole is only corresponding to a group of welding strips. As shown in Figure 1 and Figure 2Each group of parallel units needs a corresponding pair of wiring holes. However, the positions of the wiring holes opened on the glass plate and the positions of the joints of the cables are prone to poor contact, water ingress and the risk of direct current arc, and the more the number of joints and wiring holes, the more likely it is to cause hidden troubles to the stable operation of the photovoltaic module. Utility model content

[0006] Therefore, the utility model provides an intelligent photovoltaic module to solve the problem of too many wiring holes and joints on the photovoltaic module, which causes great hidden troubles to the stable operation of the photovoltaic module.

[0007] In a first aspect, the utility model provides an intelligent photovoltaic module, which comprises:

[0008] The photovoltaic plate comprises at least two parallel units, and any two adjacent parallel units are connected in series through a welding strip or a wire.

[0009] The MLPE device is arranged on one side of the photovoltaic plate and comprises a circuit board; the circuit board is provided with a control module, and the control module comprises at least one of a monitor, an interrupter, an optimizer and an inverter.

[0010] The series connection line between any two adjacent parallel units is electrically connected to the control module through a first welding strip, and the positive electrode and the negative electrode of the whole after the series connection of the plurality of parallel units are electrically connected to the control module through a second welding strip.

[0011] Advantages: the photovoltaic plate in the at least two parallel units on the photovoltaic plate realizes the function of converting light energy into electric energy, each parallel unit is connected in series through a first welding strip, since the MLPE device is arranged on one side of the photovoltaic plate, i.e. the circuit board of the MLPE device is arranged on one side of the photovoltaic plate, and the series connection line between any two adjacent parallel units is electrically connected to the control module through a first welding strip, thereby reducing the number of joints required for connecting the photovoltaic plate and the MLPE device, in addition, the positive electrode and the negative electrode of the whole after the series connection of the plurality of parallel units are electrically connected to the control module through a second welding strip, compared with the mode that each group of parallel units is electrically connected to the control unit in the prior art, the number of wiring holes opened on the glass plate is greatly reduced, thereby reducing the risk of poor contact, water ingress and direct current arc.

[0012] In an optional embodiment, the MLPE device further comprises a plurality of bypass diodes, the number of the bypass diodes is the same as the number of the parallel units; the plurality of bypass diodes are arranged on the circuit board and connected in series one by one, and any two adjacent bypass diodes are provided with a wiring point.

[0013] The anode of the whole series connection of the plurality of parallel units and the plurality of bypass diodes is electrically connected, and the cathode of the whole series connection of the plurality of parallel units and the plurality of bypass diodes is electrically connected, and the first solder strip corresponding to each of the plurality of parallel units is electrically connected to the different wiring points.

[0014] Beneficial effects: By arranging a plurality of bypass diodes in series on the circuit board, and connecting the corresponding parallel units in parallel at the corresponding bypass diodes, when one or more parallel units fail, the corresponding batteries of the failed parallel units are bypassed, avoiding the influence of the output efficiency of the whole photovoltaic panel due to the failure of a small number of batteries, and improving the reliability of the system. At the same time, since the bypass diodes are arranged in series on the circuit board, the solder strips connected in parallel with the bypass diodes can pass through the glass plate from the wiring hole close to the circuit board, reducing the number of wiring holes required on the glass plate and the length of the connection cable required outside the glass plate, further reducing the risk of poor contact, water ingress, and arc and short circuit.

[0015] In an optional embodiment, the control module further comprises a bypass unit, and the bypass unit is configured to isolate the failed battery string from the whole series connection of the plurality of parallel units in the case of failure of the battery string in the parallel unit.

[0016] Beneficial effects: By arranging the bypass unit in the control module, the bypass unit can directly control the parallel units electrically connected to the control module, so as to bypass the corresponding battery string in the case of failure of one or more battery strings in the parallel unit, avoiding the influence on the output efficiency of the whole photovoltaic panel. At the same time, the arrangement of the bypass unit eliminates the need to install additional bypass diodes on the circuit board, thereby simplifying the arrangement of elements on the circuit board and reducing the complexity of the circuit.

[0017] In an optional embodiment, the bypass unit comprises a plurality of built-in diodes, and the plurality of built-in diodes are connected in parallel with different parallel units.

[0018] Beneficial effects: By a plurality of built-in diodes, the bypass unit realizes the function of bypassing and isolating the failed battery string, providing a different bypass control mode from directly arranging bypass diodes on the circuit board.

[0019] In an alternative embodiment, the photovoltaic panel comprises a first glass plate and a second glass plate arranged in parallel, the parallel unit, the first solder strip and the second solder strip are arranged between the first glass plate and the second glass plate, and a plurality of wiring holes are formed in the first glass plate, and each of the first solder strip or the second solder strip corresponds to one of the wiring holes.

[0020] Beneficial effects: The parallel unit is arranged between the first glass plate and the second glass plate, and the sandwiched space formed by the first glass plate and the second glass plate isolates the parallel unit from the external environment, thereby protecting the parallel unit. The wiring hole serves as a channel connecting the sandwiched space with the outside, and provides a connection channel for the electrical connection between the MLPE device and each parallel unit. Since the number of wiring holes is the same as the total number of the first solder strip and the second solder strip, and the first solder strip is first connected in series with each parallel unit and then connected to the circuit board through the wiring hole, the number of wiring holes is reduced, thereby reducing the risk of poor contact, water ingress and direct current arc.

[0021] In an alternative embodiment, the MLPE device is fixed to the surface of the first glass plate, and the first solder strip or the second solder strip is welded with a cable at the corresponding wiring hole and connected to the circuit board through the cable.

[0022] Beneficial effects: The first solder strip and the second solder strip draw cables from the wiring hole and connect to the circuit board through the cable, thereby reducing the diameter of the required wiring hole and further reducing the possibility of water ingress.

[0023] In an alternative embodiment, a plurality of wiring holes are arranged in the area covered by the MLPE device, and the first solder strip and the second solder strip are directly connected to the circuit board inside the MLPE device from the corresponding wiring hole.

[0024] Beneficial effects: A plurality of parallel units are connected in series and then connected to the control module, so that the same control module can simultaneously control a plurality of parallel units, thereby saving the number of hardware used and reducing the overall cost of the photovoltaic module.

[0025] In an alternative embodiment, the upper half of the plurality of cell strings in the intelligent photovoltaic module are connected in series to form an upper half region, the lower half of the plurality of cell strings in the intelligent photovoltaic module are connected in series to form a lower half region, and each cell string in the upper half region is connected in parallel with each cell string in the lower half region. The connecting wire in parallel is welded with one end of the first solder strip, and the other end of the first solder strip is connected to the control module.

[0026] Beneficial effect: through the above connection mode, the first solder strip and the wire only have one welding point.

[0027] In an alternative embodiment, the control module comprises a plurality of control units, each of which comprises at least one of a monitor, a shutoff, an optimizer and an inverter, and each of the plurality of parallel units is electrically connected to a different control unit; or,

[0028] The control module comprises a control unit, and the plurality of parallel units are connected in series and then connected to the control module as a whole.

[0029] Beneficial effect: by setting multiple control units and connecting each parallel unit to a different control unit, the different control units can individually control each parallel unit, making it easier for staff to monitor and control the working state of each parallel unit on the photovoltaic panel.

[0030] The plurality of parallel units are connected in series and then connected to the control module, allowing the same control module to simultaneously control the plurality of parallel units, saving the number of hardware used and the overall cost of the photovoltaic assembly.

[0031] In an alternative embodiment, the control module is provided with a power line carrier communication module for communicating with other devices through the power line.

[0032] Beneficial effect: since the control module is provided with a power line carrier communication module, the control module on the photovoltaic assembly can transmit its operation data to the monitoring center of the power station in a timely manner through the power line carrier communication module, allowing the operation and maintenance personnel to monitor the working state of the photovoltaic assembly in real time and facilitating fine management of the entire photovoltaic power station. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed in the specific embodiments or prior art description. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0034] Figure 1 A schematic diagram of the photovoltaic panel cooperating with the external independent MLPE device in the background art;

[0035] Figure 2 A schematic diagram of the photovoltaic panel provided with an intelligent junction box in the background art;

[0036] Figure 3A whole structure schematic diagram of an intelligent photovoltaic module according to an embodiment of the present application.

[0037] Figure 4 For Figure 3 A local enlarged schematic view of the middle A.

[0038] Figure 5 A structure schematic diagram of another intelligent photovoltaic module according to an embodiment of the present application.

[0039] Figure 6 A structure schematic diagram of another intelligent photovoltaic module according to an embodiment of the present application.

[0040] Explanation of reference signs:

[0041] 100, photovoltaic panel; 101, wiring hole; 102, junction box; 201, parallel unit; 300, MLPE device; 301, circuit board; 302, control module; 401, first solder strip; 402, second solder strip; 403a, soldering point; 501, bypass diode; 601, cable; 700a, male head; 700b, female head. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts fall within the scope of protection of the present application.

[0043] The embodiments of the present application will be described below in combination with Figures 3 to 6 .

[0044] According to the embodiments of the present application, on the one hand, as shown in Figure 3 , an intelligent photovoltaic module is provided, which comprises: a photovoltaic panel 100 and an MLPE device 300.

[0045] Specifically, the photovoltaic panel 100 comprises at least two parallel units 201, wherein any two adjacent parallel units 201 are connected in series through a solder strip or a wire.

[0046] Specifically, the MLPE device 300 is arranged on one side of the photovoltaic panel 100. The MLPE device 300 comprises a circuit board 301, and the circuit board 301 is provided with a control module 302, wherein the control module 302 comprises at least one of a monitor, an interrupter, an optimizer and an inverter.

[0047] Specifically, as shown in Figure 4As shown, the series circuit between any two adjacent parallel units 201 is electrically connected with the control module 302 through the first solder strip 401, and the positive and negative poles of the whole after the series connection of the plurality of parallel units 201 are respectively electrically connected with the control module 302 through the second solder strip 402.

[0048] Referring to Figure 4 In the embodiment, the first solder strip 401 is connected in series between each parallel unit 201, so the first solder strip 401 needs to be welded between two parallel units, and there are two welding points on the first solder strip 401. In addition, compared with the prior art in which each group of parallel units 201 is respectively electrically connected with the control unit, the number of wiring holes 101 to be opened on the glass plate is greatly reduced, thereby reducing the risk of poor contact, water ingress and direct current arc.

[0049] Specifically, in the above embodiment, the relationship between the number n of wiring holes 101 and the number a of parallel units 201 is n = (a-1) + 2 = a + 1, which is less than the number n = 2a of wiring holes 101 in the related art, and as the total number of parallel units 201 on the photovoltaic panel 100 increases, the number of wiring holes 101 is reduced more obviously in the above embodiment than in the prior art.

[0050] In the above embodiment, the parallel unit 201 is formed by at least two battery strings in series and parallel, and each battery string is formed by a plurality of battery panels in series. The above embodiment does not limit the number of battery strings constituting the parallel unit 201. The MLPE device 300 includes a circuit board 301, and the control module 302 is arranged on one side of the photovoltaic panel 100 with the circuit board 301 as a carrier. Specifically, the circuit board 301 is arranged on one side of the photovoltaic panel 100 by welding, bonding or fixing, etc. The control module 302 can be configured as a monitor, a shut-off device and an inverter, and can also be configured as an optimizer and an inverter. The specific form can be selected by the staff according to actual needs.

[0051] In one embodiment, the MLPE device 300 further includes a plurality of bypass diodes 501, and the number of bypass diodes 501 is the same as the number of parallel units 201. The plurality of bypass diodes 501 are arranged on the circuit board 301 and are connected in series. Any two adjacent bypass diodes 501 are provided with a wiring point. The positive pole of the whole after the series connection of the plurality of parallel units 201 is electrically connected with the cathode of the whole series circuit of the plurality of bypass diodes 501, and the negative pole of the whole after the series connection of the plurality of parallel units 201 is electrically connected with the anode of the whole series circuit of the plurality of bypass diodes 501. The plurality of first solder strips 401 are respectively electrically connected with different wiring points.

[0052] It should be noted that in the above embodiment, the wiring point is not particularly a certain structure, and the wiring point can be any point between the cathode and the anode, which can realize the connection with the welding strip.

[0053] In the embodiment, by arranging a plurality of bypass diodes 501 and connecting the bypass diodes 501 in series on the circuit board 301, and connecting the corresponding parallel units 201 in parallel at the corresponding bypass diodes 501, when some or some of the parallel units 201 fail, the corresponding battery string of the failed parallel unit 201 is bypassed, avoiding the influence of the output efficiency of the entire photovoltaic panel 100 due to the failure of a small number of battery panels, and improving the reliability of the system. At the same time, since the bypass diodes 501 are connected in series on the circuit board 301, the welding strip connected in parallel with the bypass diode 501 can pass through the glass plate from the wiring hole 101 close to the circuit board 301, reducing the number of wiring holes 101 required on the glass plate, and reducing the length of the connection cable required outside the glass plate, further reducing the risk of poor contact, water ingress, and arc, short circuit.

[0054] In one embodiment, the control module 302 further includes a bypass unit, which is configured to isolate the failed battery string from the entire series circuit composed of a plurality of parallel units 201 in the case of failure of a certain battery string in the parallel unit 201.

[0055] In the embodiment, by embedding the bypass unit in the control module 302, the bypass unit can directly control each parallel unit 201 electrically connected to the control module 302, so as to bypass the corresponding battery string in time in the case of failure of a certain or some battery string in the parallel unit 201, avoiding affecting the output efficiency of the entire photovoltaic panel 100. At the same time, the arrangement of the bypass unit makes it unnecessary to install additional bypass diodes 501 on the circuit board 301, thereby simplifying the arrangement of elements on the circuit board 301 and reducing the complexity of the circuit.

[0056] In one embodiment, the bypass unit includes a plurality of built-in diodes, and the plurality of built-in diodes are connected in parallel with different parallel units 201.

[0057] In the embodiment, the plurality of built-in diodes provide a bypass control mode different from directly arranging the bypass diodes 501 on the circuit board 301 for the bypass unit to bypass and isolate the failed battery string.

[0058] In one embodiment, the photovoltaic panel 100 comprises a first glass plate and a second glass plate arranged in parallel opposite, and the parallel unit 201, the first solder strip 401 and the second solder strip 402 are arranged between the first glass plate and the second glass plate, and a plurality of wiring holes 101 are arranged on the first glass plate, and each first solder strip 401 or second solder strip 402 corresponds to one wiring hole 101.

[0059] Specifically, the first glass plate can be a glass plate on any side of the photovoltaic panel 100, that is, it can be a glass plate on the upper side of the photovoltaic panel 100, or a glass plate on the lower side of the photovoltaic panel 100. In this embodiment, the first glass plate is located on the lower side of the photovoltaic panel 100, and the MLPE device 300 is installed on the lower side of the first glass plate.

[0060] In this embodiment, the parallel unit 201 is arranged between the first glass plate and the second glass plate, and the sandwiched space formed by the first glass plate and the second glass plate isolates the parallel unit 201 from the external environment, thereby protecting the parallel unit 201. The wiring hole 101 serves as a channel connecting the sandwiched space to the outside, and provides a connection channel for the electrical connection between the MLPE device 300 and each parallel unit 201. Since the number of wiring holes 101 is the same as the total number of first solder strips 401 and second solder strips 402, and the first solder strips 401 are first connected in series with each parallel unit 201 and then connected to the circuit board 301 through the wiring holes 101, the number of wiring holes 101 is reduced, thereby reducing the risk of poor contact, water ingress and direct current arc.

[0061] In one embodiment, the MLPE device 300 is fixedly arranged on the surface of the first glass plate. The first solder strip 401 or the second solder strip 402 is welded with the cable at the corresponding wiring hole 101, and is connected to the circuit board 301 through the cable.

[0062] In this embodiment, the first solder strip 401 and the second solder strip 402 draw cables from the wiring holes 101 and connect to the circuit board 301 through the cables, thereby reducing the diameter of the required wiring holes 101 and further reducing the possibility of water ingress.

[0063] In one embodiment, a plurality of wiring holes 101 are arranged in the area covered by the MLPE device 300, and the cables are drawn from the inside of the MLPE device 300 and electrically connected to the circuit board 301.

[0064] In this embodiment, since the MLPE device 300 is fixedly arranged on the surface of the photovoltaic panel 100, the length of the cable drawn is reduced, and the risk of short circuit, direct current arc and other adverse effects caused by cable damage is further reduced.

[0065] In one embodiment, the control module 302 comprises a plurality of control units, each of which comprises at least one of a monitor, a shutoff, an optimizer and an inverter, and each of the plurality of parallel units 201 is electrically connected to a different control unit.

[0066] Alternatively, the control module 302 comprises one control unit, and the plurality of parallel units 201 are connected in series and then connected to the control module 302 as a whole.

[0067] In this embodiment, by providing a plurality of control units and electrically connecting each of the plurality of parallel units 201 to a different control unit, the different control units can individually control each of the plurality of parallel units 201, which facilitates the monitoring and control of the working state of each of the plurality of parallel units 201 on the photovoltaic panel 100 by the staff.

[0068] The plurality of parallel units 201 are connected in series and then connected to the control module 302, so that the same control module 302 can simultaneously control the plurality of parallel units 201, thereby saving the number of hardware used and the overall cost of the photovoltaic module.

[0069] In one embodiment, as shown in Figure 5 , the upper half of the plurality of cell strings in the intelligent photovoltaic module are connected in series to form an upper half region, and the lower half of the plurality of cell strings in the intelligent photovoltaic module are connected in series to form a lower half region, and each of the cell strings in the upper half region is connected in parallel to each of the cell strings in the lower half region. The connection wire in parallel is welded to one end of the first solder strip 401, and the other end of the first solder strip 401 is electrically connected to the control module 302.

[0070] In this embodiment, as shown in Figure 5 , by using the above connection method, the first solder strip 401a only needs to be welded to the connection wire between the upper half region and the lower half region, so there is only one welding point 403a on the first solder strip 401a. Compared with the scheme shown in Figure 4 , in the Figure 4 , the first solder strip 401 needs to have two welding points at the connection with the wire, Figure 5 , the number of welding points is reduced in the embodiment shown in

[0071] Specifically, as shown in Figure 5As shown, one end of cable 601 is a male connector 700a, and the other end is a female connector 700b. The male connector of each photovoltaic module is connected to the female connector of the adjacent photovoltaic module. In this embodiment, since the two wiring holes 101a and 101b are not covered by the MLPE device 300, junction boxes 102a and 102b need to be installed at both wiring holes for dust and water protection; at the same time, a cable 602a and 602b are also needed to connect the second solder strips 402a and 402b to the control module 302, and the cables 602a and 602b are exposed to the external environment, which poses the risk of wire aging and is unsightly.

[0072] like Figure 6 As shown, in one embodiment, all wiring holes are located within the area covered by the MLPE device 300. Wiring holes 101a and 101b are located below the MLPE device 300, allowing the second solder strips 402a and 402b to extend directly to the bottom of the MLPE module and directly enter the interior of the MLPE device 300 through wiring holes 101a and 101b to electrically connect with the control module 302. Since the MLPE device 300 has its own housing and a dustproof and waterproof sealed structure, it is no longer necessary to... Figure 5 The junction boxes 102a and 102b in the embodiments have a flatter and more aesthetically pleasing appearance, and a higher degree of integration. They also reduce the number of cables exposed to the external environment (eliminating the need for...). Figure 5 The embodiments using cables 602a and 602b also reduce the welding process between the second solder strips 402a and 402b and the cables, thereby further optimizing the manufacturing process. It should be noted that... Figure 6 The second welding strips 402a and 402b intersect with the conductor, but they do not actually make contact. Since the photovoltaic panel has a multi-layer structure, the conductor and welding strip can be set on different layers; or an insulation layer can be set separately at the intersection of the two to avoid short circuit of the battery string.

[0073] In one embodiment, the control module 302 is provided with a power line carrier communication module, which is used to communicate with other devices through power lines.

[0074] In this embodiment, since the control module 302 is equipped with a power line carrier communication module, the control module 302 on the photovoltaic module can transmit its own operating data to the monitoring center of the power station in a timely manner through the power line carrier communication module, so that the operation and maintenance personnel can grasp the working status of the photovoltaic module in real time and facilitate the refined management of the entire photovoltaic power station.

[0075] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. An intelligent photovoltaic module, characterized in that, The application relates to a photovoltaic panel (100) and an MLPE device (300) thereof. The photovoltaic panel (100) comprises at least two parallel units (201), and any two adjacent parallel units (201) are connected in series through a welding strip or a wire. The MLPE device (300) is arranged on one side of the photovoltaic panel (100) and comprises a circuit board (301); a control module (302) is arranged on the circuit board (301), and the control module (302) at least comprises one of a monitor, a shutoff device, an optimizer and an inverter. The series connection line between any two adjacent parallel units (201) is electrically connected with the control module (302) through a first welding strip (401), and the positive electrode and the negative electrode of the series connection of a plurality of parallel units (201) are electrically connected with the control module (302) through a second welding strip (402).

2. The smart photovoltaic assembly of claim 1, wherein, The MLPE device (300) further comprises a plurality of bypass diodes (501), the number of the bypass diodes (501) is the same as that of the parallel units (201); the plurality of bypass diodes (501) are arranged on the circuit board (301) and are connected in series one by one, and any two adjacent bypass diodes (501) are provided with a wiring point. The positive electrode of the series connection line of the series connection of the plurality of parallel units (201) is electrically connected with the negative electrode of the series connection line of the series connection of the plurality of bypass diodes (501), the negative electrode of the series connection line of the series connection of the plurality of parallel units (201) is electrically connected with the positive electrode of the series connection line of the series connection of the plurality of bypass diodes (501), and the plurality of first welding strips (401) are electrically connected with different wiring points one by one.

3. The smart photovoltaic assembly of claim 1, wherein, The control module (302) further comprises a bypass unit, and the bypass unit is configured to isolate a fault battery string from the series connection line of the plurality of parallel units (201) in the case that the battery string fails.

4. The smart photovoltaic assembly of claim 3, wherein, The bypass unit comprises a plurality of built-in diodes, and the plurality of built-in diodes are connected in parallel with different parallel units (201) respectively.

5. The smart photovoltaic assembly according to any of claims 1 to 4, characterized in that, The photovoltaic panel (100) comprises first and second glass plates arranged in parallel, the parallel units (201), the first welding strips (401) and the second welding strips (402) are arranged between the first and second glass plates, and a plurality of wiring holes (101) are formed in the first glass plate, and any first welding strip (401) or second welding strip (402) corresponds to one wiring hole (101).

6. The smart photovoltaic assembly of claim 5, wherein, The MLPE device (300) is fixedly arranged on the surface of the first glass plate, and the first welding strips (401) or the second welding strips (402) are welded with cables at the corresponding wiring holes (101) and connected to the circuit board (301) through the cables.

7. The smart photovoltaic assembly of claim 5, wherein, A plurality of the wire holes (101) are arranged in the area covered by the MLPE device (300), and the first solder strip (401) and the second solder strip (402) are directly electrically connected with the circuit board (301) inside the MLPE device (300) from the corresponding wire hole (101).

8. The smart photovoltaic assembly according to any of claims 1 to 4, characterized in that, The upper half of the plurality of cell strings in the intelligent photovoltaic module are sequentially connected in series to form an upper half area, and the lower half of the plurality of cell strings in the intelligent photovoltaic module are sequentially connected in series to form a lower half area, and each cell string in the upper half area is connected in parallel with each cell string in the lower half area; the connection wire in parallel is welded with one end of the first solder strip (401), and the other end of the first solder strip (401) is electrically connected with the control module (302).

9. The smart photovoltaic assembly according to any of claims 1 to 4, characterized in that, The control module (302) comprises a plurality of control units, and each control unit comprises at least one of a monitor, a shutoff, an optimizer and an inverter, and a plurality of parallel units (201) are electrically connected with different control units; or, The control module (302) comprises one control unit, and a plurality of parallel units (201) are sequentially connected in series and electrically connected with the control module (302) as a whole.

10. The smart photovoltaic assembly according to any of claims 1 to 4, characterized in that, The control module (302) is provided with a power line carrier communication module for communicating with other devices through a power line.

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