A solar-storage, direct-flexible intelligent control system

Abstract

The present invention discloses a photovoltaic, storage, direct and flexible intelligent control system, which belongs to the technical field related to power supply and distribution, and includes an intelligent operation and maintenance control center, a photovoltaic subsystem, an energy storage subsystem, a DC electronic system, and a flexible electronic system. The user-side photovoltaic components are respectively connected to the user-side control components and the user-side energy storage components, the power station-side photovoltaic components are connected to the power station-side energy storage components, the DC electronic system is respectively connected to the power station-side energy storage components, the user-side energy storage components, and the power grid, and the flexible electronic system is also respectively connected to the power station-side energy storage components, the user-side energy storage components, and the power grid. The power station-side photovoltaic components and the user-side photovoltaic components both use photovoltaic units, and the photovoltaic units include photovoltaic panels and four module assembly components. The present invention can realize flexible power generation, power supply, and distribution scheduling, and the universal photovoltaic units used on the power station side and the user side can be easily assembled and unassembled in a modular manner, and have strong versatility and flexibility.

Description

Technical Field

[0001] The present invention relates to the technical field related to power supply and distribution, and in particular to a photovoltaic storage, direct-flexible intelligent control system. Background Art

[0002] Solar-Storage-Direct-Flexible (SPD) is an abbreviation for the application of solar photovoltaics, energy storage, DC power distribution, and flexible interaction in the building sector. In recent years, SPD-Direct-Flexible (SPD-Flex) technologies have continued to advance, with significant progress in photovoltaic power generation, energy storage, and power dispatch. With the development of SPD-Direct-Flexible (SPD-Flex), zero-carbon buildings—those with zero carbon emissions—are expected to become a reality and be widely adopted.

[0003] A key development direction for this technology is the decentralized deployment of photovoltaic power generation and energy storage. This means that while continuing to deploy solar power plants, we should also actively build photovoltaic power generation and energy storage equipment on the user side. This approach offers advantages such as reduced transmission losses and the ability to provide emergency power. However, practical applications present some challenges: When constructing facilities on the power plant and user side, the flexibility and versatility of coordinating different devices is limited. For energy storage equipment, technological advancements have made it easier to coordinate charging modules or battery packs between storage devices of varying sizes. However, for photovoltaic equipment, for the power station side, larger-scale photovoltaic equipment is usually used, and the orientations of photovoltaic panels in different blocks in a power station are different. The requirements for whether each photovoltaic panel can rotate with the sun are relatively low. In addition, the photovoltaic equipment used in power stations are usually equipment that is planned and constructed for a long time, while for the user side, smaller photovoltaic equipment is usually used, and sun position tracking is generally required to improve the efficiency of light energy utilization. Therefore, generally speaking, the photovoltaic equipment and its components used on the power station side and the user side are not universal. Another major problem is that the stability of photovoltaic equipment construction on the user side is not high, including but not limited to the following situations: changes in the time and content of the relevant contracts signed between the user and the power supply department; increases or decreases in the photovoltaic power generation capacity required by the user; changes in local users, etc. In these cases, the user side needs to adopt more flexible and versatile photovoltaic-related equipment. In the best case, these equipment should be able to be used in conjunction with some components of the equipment used on the power station side. Summary of the Invention

[0004] In response to the above-mentioned defects, the present invention provides a solar-storage direct-flexible intelligent control system that can realize flexible power generation, power supply, and distribution scheduling. The universal photovoltaic units used on the power station side and the user side can easily realize modular loading and unloading, and have strong versatility and flexibility.

[0005] In order to achieve the purpose of the present invention, the following technologies are proposed:

[0006] A photovoltaic, storage, direct-current and flexible intelligent control system includes a smart operation and maintenance control center and a photovoltaic subsystem, an energy storage subsystem, a DC electronic system, and a flexible electronic system connected thereto. The photovoltaic subsystem includes a power station-side photovoltaic module, a user-side control module, and a user-side photovoltaic module. The energy storage subsystem includes a power station-side energy storage module and a user-side energy storage module. The DC electronic system, the flexible electronic system, the user-side control module, the user-side photovoltaic module, and the user-side energy storage module are all multiple. The user-side photovoltaic module is connected to the user-side control module and the user-side energy storage module, respectively. The power station-side photovoltaic module is connected to the power station-side energy storage module. The DC electronic system is connected to the power station-side energy storage module, the user-side energy storage module, and the power grid, respectively. The flexible electronic system is also connected to the power station-side energy storage module, the user-side energy storage module, and the power grid, respectively.

[0007] Both the power station-side PV modules and the user-side PV modules use photovoltaic units, which include:

[0008] The photovoltaic panel has a junction box on its back, and guide tubes are provided on the four ends of the junction box. A plurality of mounting blocks with open lower ends are provided on the lower part of the back of the photovoltaic panel;

[0009] Four module assembly components are respectively embedded in four guide torque tubes. The module assembly components include a pull ring. One end of the pull ring is provided with two connecting rods, both of which are passed through a side of the guide torque tube. One end of the connecting rod is provided with a slider. When one end of the photovoltaic panel is assembled with other photovoltaic panels, the slider of one module assembly component extends into the guide torque tube where the other module assembly component is located.

[0010] The beneficial effects of this technical solution are:

[0011] 1. The photovoltaic modules on the power station side and the photovoltaic modules on the user side use common photovoltaic units, and can be quickly and modularly assembled and unassembled through modular assembly components. They can be easily exchanged between the power station side and the user side, or when the user side is upgraded or adjusted, and have good versatility and flexibility.

[0012] 2. This system can realize more flexible photovoltaic power generation, storage and use, which can reduce the power supply pressure of the power grid and power stations, and is conducive to achieving zero-carbon buildings. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The overall architecture diagram of the solar-storage-direct-flexible intelligent control system in an embodiment of the present application is shown.

[0014] Figure 2 Shows the three-dimensional view of the back side of the photovoltaic unit of the embodiment of the present application Figure 1 .

[0015] Figure 3 Shows the three-dimensional view of the back side of the photovoltaic unit of the embodiment of the present application Figure 2.

[0016] Figure 4 A three-dimensional diagram of two photovoltaic units assembled in an embodiment of the present application is shown.

[0017] Figure 5 A partial view of two photovoltaic units assembled in an embodiment of the present application is shown.

[0018] Figure 6 An exploded view of a photovoltaic unit according to an embodiment of the present application is shown.

[0019] Figure 7 A stereoscopic view of a module assembly component according to an embodiment of the present application is shown.

[0020] Figure 8 A three-dimensional diagram of the photovoltaic components on the power station side of an embodiment of the present application is shown.

[0021] Figure 9 A partial diagram of the photovoltaic components on the power station side of an embodiment of the present application is shown.

[0022] Figure 10 A three-dimensional diagram of the user-side photovoltaic assembly according to an embodiment of the present application is shown.

[0023] Figure 11 A partial exploded view of a user-side photovoltaic assembly according to an embodiment of the present application is shown.

[0024] Markings in the figure: photovoltaic panel 1, junction box 11, guide torque tube 12, translation slot 13, telescopic slot 14, first stowed position screw hole 15, second stowed position screw hole 16, first deployed position screw hole 17, second deployed position screw hole 18, seat block 19, module assembly component 2, pull ring 21, Z-shaped portion 22, first through hole 23, first screw 24, connecting rod 25, slider 26, bottom stabilizing unit 3, base 31, bottom plate 32, first plug block 33, top stabilizing unit 4, support rod 41, steel cable 42, drive unit 5, base 51, electric turntable 52, bracket 53, rotating motor 54, roller 55, annular groove 56, protrusion 57, mounting hole 58, rotating seat 59, adapter unit 6, arc plate 61, cover block 62, second through hole 63, second screw 64, cross block 65, second plug block 66. DETAILED DESCRIPTION

[0025] The present application will be further described below with reference to the accompanying drawings and examples.

[0026] like Figures 1 to 11 The shown system is a photovoltaic, energy storage, direct current and flexible intelligent control system, including an intelligent operation and maintenance control center, a photovoltaic subsystem, an energy storage subsystem, a direct current electronic system, and a flexible electronic system.

[0027] See Figure 1The smart operation and maintenance control center is connected to the photovoltaic subsystem, energy storage subsystem, DC electronic system, and flexible electronic system respectively. The photovoltaic subsystem includes power station side photovoltaic components, user side control components, and user side photovoltaic components. The energy storage subsystem includes power station side energy storage components and user side energy storage components. There are multiple DC electronic systems, flexible electronic systems, user side control components, user side photovoltaic components, and user side energy storage components. In the attached drawings, for the convenience of representation, only one of the above subsystems or components is shown. The same applies when the number is multiple. In actual use, each user has a set of DC electronic systems, flexible electronic systems, user side control components, and user side photovoltaic components. , user-side energy storage components, user-side photovoltaic components are respectively connected to user-side control components and user-side energy storage components, power station-side photovoltaic components are connected to power station-side energy storage components, DC electronic systems are respectively connected to power station-side energy storage components, user-side energy storage components, and power grid, flexible electronic systems are also respectively connected to power station-side energy storage components, user-side energy storage components, and power grid, and AC / DC modules are respectively arranged between the DC electronic system and the power grid, between the user-side energy storage components and the flexible electronic system, and between the power station-side energy storage components and the flexible electronic system. In this embodiment, the AC / DC module adopts an off-grid inverter, and the physical structure of the power station-side energy storage components and the user-side energy storage components adopts an energy storage cabinet.

[0028] More specifically, the user-side control component adopts a solar tracking system, which is a commonly used device at present and its working method is not described in detail. The solar tracking system includes a photosensitive sensor array and a controller that receives sensor signals. The controller adopts PLC.

[0029] Both the power station side photovoltaic modules and the user side photovoltaic modules adopt Figures 2 to 7 The photovoltaic unit shown includes a photovoltaic panel 1 and a module assembly 2 .

[0030] The photovoltaic panel 1 includes an outer frame layer, photovoltaic glass, a first adhesive film layer, a battery pack layer, a second adhesive film layer, and a backboard layer arranged in sequence from the side receiving sunlight to the back. A junction box 11 is provided on the back of the photovoltaic panel 1. Specifically, the junction box 11 is fixed to one side of the backboard layer. For the convenience of representation, and because the junction box 11 is a technology known in the art, its ports, connecting wires and other components are not specifically shown in the accompanying drawings. Guide tubes 12 are respectively provided on the four end surfaces of the junction box 11. A side groove group is provided on one side of the guide tube 12. The side groove group includes four parallel expansion grooves 14 and a translation groove 13 perpendicular to one end of the expansion groove 14 and connected to the expansion groove 14. The first, second, third and fourth expansion grooves are defined in the order of the positions connected to the translation groove 13 for subsequent description. Each expansion groove 14 has two A pair of symmetrically arranged screw hole groups are also provided on the side, and the screw hole group is opened on the back of the photovoltaic panel 1, specifically, on one side of the back plate layer, and the screw hole group includes a first stowed position screw hole 15, a second stowed position screw hole 16, a first unfolded position screw hole 17, and a second unfolded position screw hole 18, wherein the distances from the first stowed position screw hole 15 and the first unfolded position screw hole 17 to the guide torque tube 12 are smaller than the distances from the second stowed position screw hole 16 and the second unfolded position screw hole 18 to the guide torque tube 12, and the spacing between the first stowed position screw hole 15 and the first unfolded position screw hole 17 is the same as the spacing between the second stowed position screw hole 16 and the second unfolded position screw hole 18. A plurality of mounting blocks 19 are provided on the lower part of the back of the photovoltaic panel 1, and the lower end of the mounting block 19 is open. In this embodiment, there are two mounting blocks 19 on the back of a single photovoltaic panel 1, specifically, the mounting block 19 is also located on one side of the back plate layer.

[0031] There are four module assembly components 2 for each photovoltaic unit, which are respectively embedded in four guide torque tubes 12 and used to assemble one end of the upper, lower, left and right ends of a photovoltaic panel 1 with another photovoltaic panel 1. The module assembly component 2 includes a pull ring 21, and a Z-shaped portion 22 is provided on both sides of the pull ring 21. A first through hole 23 matching the screw hole in the screw hole group is provided at the end of one side of the two parallel sides of the Z-shaped portion 22 that is attached to the back of the photovoltaic panel 1. The first through hole 23 and the screw hole in the screw hole group are connected and fixed by a first screw 24. In this embodiment, the first screw 24 is a hexagon socket screw, which is convenient for the staff to load and unload. Two connecting rods 25 are provided at one end of the pull ring 21. The connecting rod 25 slides in the side groove group. The connecting rod 25 includes two working states. In the first working state, the two connecting rods 25 both slide in the translation groove 13. In the second working state, the two connecting rods 25 slide in the two spaced telescopic grooves 14 respectively. , and there is only one telescopic slot 14 at the interval. More specifically, the two connecting rods 25 slide and fit in the first and third telescopic slots 14 respectively, or slide and fit in the second and fourth telescopic slots 14 respectively. A slider 26 is provided at one end of the connecting rod 25. The width of the gap between the two sliders 26 is the same as the width of a single slider 26. When a connecting rod 25 slides and fits in the first telescopic slot 14, one side of the slider 26 connected to the connecting rod 25 abuts against an inner side surface of the guide moment tube 12. When a connecting rod 25 slides and fits in the fourth telescopic slot 14, one side of the slider 26 connected to the connecting rod 25 abuts against the other inner side surface of the guide moment tube 12. When the end of the photovoltaic panel 1 is not assembled with other photovoltaic panels 1, the two first through holes 23 of the module assembly component 2 at the end are fixed with a first screw 24 and a first retracted position screw hole 15 of a screw hole group and a second retracted position screw hole 16 of another screw hole group.

[0032] like Figure 4 、 Figure 5 As shown, when one end of the photovoltaic panel 1 is assembled with the other photovoltaic panel 1, each connecting rod 25 of the module assembly component 2 at the assembly end of the two photovoltaic panels 1 is respectively moved to one end of the two telescopic slots 14, and the slider 26 of one module assembly component 2 is extended into the guide torque tube 12 at the position of the other module assembly component 2. The two first through holes 23 of the module assembly component 2 at the assembly end are respectively fixed with the first screw 24 and the first deployment position screw hole 17 of one screw hole group and the second deployment position screw hole 18 of the other screw hole group, and at this time, as shown in FIG. Figure 5 As shown, the four sliders 26 of the two module assembly components 2 at the assembly end are arranged in a staggered manner, and the sides of adjacent sliders 26 abut against each other.

[0033] like Figure 8 、 Figure 9 As shown, the photovoltaic assembly at the power station side includes a plurality of photovoltaic units assembled by a module assembly assembly 2 and arranged in a rectangular array, and also includes a bottom stabilizing unit 3 and a top stabilizing unit 4.

[0034] The bottom stabilizing unit 3 is set on the ground of the photovoltaic power station when in use, and includes a plurality of bases 31, a bottom plate 32 is provided on the base 31, and a plurality of first plug-in blocks 33 are provided on the bottom plate 32. Each group of first plug-in blocks 33 is respectively used to be inserted into the mounting block 19 of the photovoltaic unit located in the bottom row of the photovoltaic assembly on the power station side. In this embodiment, the photovoltaic assembly on the power station side includes the following: Figure 8 The ten rows of photovoltaic units shown in the figure thus have a total of ten groups of first plug-in blocks 33 . The upper portion of the first plug-in blocks 33 is tilted, so that the photovoltaic units are also tilted when installed.

[0035] The top stabilizing unit 4 is arranged on one side of the bottom stabilizing unit 3, and includes a pair of support rods 41. A steel cable 42 is provided between the upper ends of the two support rods 41, which is used to support the back of the row of photovoltaic units located at the top end to prevent the photovoltaic units installed on the photovoltaic modules on the power station side from tipping backward under the action of gravity.

[0036] like Figure 10 、 Figure 11 As shown, the user-side photovoltaic assembly includes several photovoltaic units, a driving unit 5 and a switching unit 6.

[0037] When in use, the drive unit 5 is set on the roof of the user's house and is controlled by a controller. It includes a base 51, on which is an electric turntable 52. A bracket 53 is provided at the upper end of the electric turntable 52, and a rotating motor 54 is provided at the upper end of the bracket 53. A roller 55 is provided at its output end, and an annular groove 56 is provided inwardly on the circumference of the roller 55. Both ends of the circumference of the annular groove 56 are respectively provided with protrusions 57, and mounting holes 58 are provided on the protrusions 57. A rotating seat 59 is also provided on the electric turntable 52, and one end of the roller 55 is rotatably engaged with the rotating seat 59.

[0038] The adapter unit 6 is arranged on the annular groove 56, and includes an arc plate 61 assembled on one end of the circumferential side of the annular groove 56. The two ends of the arc plate 61 are respectively provided with a cover block 62 that abuts against one side of the protrusion 57 during assembly. The cover block 62 is provided with a second through hole 63 that matches the mounting hole 58. The second through hole 63 is connected and fixed to the mounting hole 58 by a second screw 64. In this embodiment, the second screw 64 is a cross screw. The outer peripheral side of the arc plate 61 is also provided with a connecting plate, and a cross block 65 is provided at one end of the connecting plate. A plurality of groups of second plug-in blocks 66 are provided on the upper end surface of the cross block 65. Each group of second plug-in blocks 66 is used to be inserted into the seat block 19 of the photovoltaic unit located in the bottom row of the user-side photovoltaic assembly. In this embodiment, the user-side photovoltaic assembly includes the following: Figure 10 The two rows of photovoltaic units shown thus have two groups of first plug-ins 33 .

[0039] Working method:

[0040] First, let's explain the overall system operation from the perspective of power consumption: Whether connected to a DC load in a DC electronic system or an AC load in a flexible electronic system, the remaining power in the user-side energy storage components is prioritized. If the user-side energy storage components have no remaining power, the remaining power in the power station-side energy storage components is used. If the power station-side energy storage components also have no remaining power, power is drawn from the grid. Because each subsystem is connected and communicates with the smart operation and maintenance control center, all of the above controls are centrally executed by the smart operation and maintenance control center.

[0041] Preferably, the DC electronic system or the flexible electronic system returns excess power of any energy storage component to the grid.

[0042] From the perspective of power station construction, since power station construction is usually a long-term plan, the number and arrangement of photovoltaic units in each area will be determined. Furthermore, after the bottom stabilization unit 3 and the top stabilization unit 4 are constructed according to the plan, the photovoltaic units can be assembled.

[0043] From the user side configuration point of view, the driving unit 5 is placed first, and then different adapter units 6 can be installed according to the specific number and method of use of the photovoltaic units, or when demand increases or decreases, which is more flexible.

[0044] The above are only some of the embodiments listed in this application and are not intended to limit this application.

Claims

1. A solar-storage, direct-flexible intelligent control system, characterized in that: It includes a smart operation and maintenance control center and the photovoltaic subsystem, energy storage subsystem, DC electronic system, and flexible electronic system connected thereto. The photovoltaic subsystem includes the power station-side photovoltaic components, the user-side control components, and the user-side photovoltaic components. The energy storage subsystem includes the power station-side energy storage components and the user-side energy storage components. There are multiple DC electronic systems, flexible electronic systems, user-side control components, user-side photovoltaic components, and user-side energy storage components. The user-side photovoltaic components are connected to the user-side control components and the user-side energy storage components respectively. The power station-side photovoltaic components are connected to the power station-side energy storage components. The DC electronic system is connected to the power station-side energy storage components, the user-side energy storage components, and the power grid respectively. The flexible electronic system is also connected to the power station-side energy storage components, the user-side energy storage components, and the power grid respectively. Both the power station-side PV modules and the user-side PV modules use photovoltaic units, which include: A photovoltaic panel (1) is provided with a junction box (11) on the back thereof, and guide torque tubes (12) are respectively provided on the four end surfaces of the junction box (11). A plurality of seat blocks (19) with lower ends opened are provided on the lower portion of the back of the photovoltaic panel (1); Four module assembly components (2) are respectively embedded in four guide torque tubes (12). The module assembly components (2) include a pull ring (21). One end of the pull ring (21) is provided with two connecting rods (25) both of which are inserted into a side surface of the guide torque tube (12). One end of the connecting rod (25) is provided with a slider (26). When one end of the photovoltaic panel (1) is assembled with another photovoltaic panel (1), the slider (26) of one module assembly component (2) extends into the guide torque tube (12) at the position of another module assembly component (2); The photovoltaic assembly on the power station side includes a bottom stabilizing unit (3) and a plurality of photovoltaic units assembled by a module assembly assembly (2) and arranged in a rectangular array. The bottom stabilizing unit (3) includes a plurality of bases (31). A bottom plate (32) is provided on the base (31). A plurality of groups of first plug-in blocks (33) are provided on the bottom plate (32). Each group of first plug-in blocks (33) is respectively used to be inserted into a seat block (19) of a photovoltaic unit located in a bottom row in the photovoltaic assembly on the power station side. The user-side photovoltaic assembly includes several photovoltaic units, including: The driving unit (5) includes an electric turntable (52), a rotating motor (54) is provided at the upper end of the electric turntable (52), a roller (55) is provided at the output end thereof, and an annular groove (56) is provided inwardly on the circumference of the roller (55); The adapter unit (6) is arranged on the annular groove (56), and includes an arc plate (61) assembled on one end of the peripheral side of the annular groove (56). A connecting plate is further provided on the outer peripheral side of the arc plate (61), and a transverse block (65) is provided at one end of the connecting plate. A plurality of groups of second plug-in blocks (66) are provided on the upper end surface of the transverse block (65), and each group of second plug-in blocks (66) is respectively used to be inserted into the seat block (19) of the photovoltaic unit located in the bottom row of the user-side photovoltaic assembly.

2. The solar-storage, direct-flexible intelligent control system according to claim 1 is characterized in that: A side groove group is provided on one side of the guide moment tube (12), and the side groove group includes four telescopic grooves (14) arranged in parallel, and a translation groove (13) arranged perpendicularly at one end of the telescopic groove (14) and connected to the telescopic groove (14).

3. The solar-storage direct-flexible intelligent control system according to claim 2 is characterized in that: A pair of symmetrically arranged screw hole groups are provided on both sides of each telescopic slot (14), and the screw hole groups are opened on the back of the photovoltaic panel (1), and the screw hole groups include a first stowed position screw hole (15), a second stowed position screw hole (16), a first deployed position screw hole (17), and a second deployed position screw hole (18), wherein the distance between the first stowed position screw hole (15) and the first deployed position screw hole (17) and the guide moment tube (12) is smaller than the distance between the second stowed position screw hole (16) and the second deployed position screw hole (18) and the guide moment tube (12), and the spacing between the first stowed position screw hole (15) and the first deployed position screw hole (17) is the same as the spacing between the second stowed position screw hole (16) and the second deployed position screw hole (18).

4. The solar-storage, direct-flexible intelligent control system according to claim 2, characterized in that: The connecting rod (25) is slidably fitted in the side groove group. The connecting rod (25) includes two working states. In the first working state, both connecting rods (25) are slidably fitted in the translation groove (13). In the second working state, the two connecting rods (25) are slidably fitted in two spaced telescopic grooves (14), and there is only one telescopic groove (14) at the spaced position. In the second working state, one end of the photovoltaic panel (1) is assembled with the other photovoltaic panel (1), and each connecting rod (25) of the module assembly assembly (2) at the assembly end of the two photovoltaic panels (1) is respectively moved to one end in the two telescopic slots (14).

5. The solar-storage, direct-flexible intelligent control system according to claim 3 is characterized in that: The pull ring (21) is provided with a Z-shaped portion (22) on both sides. The end of the Z-shaped portion (22) attached to the back of the photovoltaic panel (1) is provided with a first through hole (23) that matches the screw hole in the screw hole group. The first through hole (23) and the screw hole in the screw hole group are connected and fixed by a first screw (24).

6. The solar-storage, direct-flexible intelligent control system according to claim 1 is characterized in that: The photovoltaic assembly on the power station side also includes a top stabilizing unit (4) arranged on one side of the bottom stabilizing unit (3), which includes a pair of support rods (41), and a steel cable (42) is provided between the upper ends of the two support rods (41) for supporting the back of a row of photovoltaic units located at the uppermost end.

7. The solar-storage, direct-flexible intelligent control system according to claim 1, characterized in that: The two ends of the circumferential side of the annular groove (56) are respectively provided with protrusions (57), and the protrusions (57) are provided with mounting holes (58). The two ends of the arc plate (61) are respectively provided with cover blocks (62) that abut against one side of the protrusions (57) during assembly. The cover block (62) is provided with a second through hole (63) that matches the mounting hole (58), and the second through hole (63) and the mounting hole (58) are connected and fixed by a second screw (64).

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