A distributed photovoltaic integrated building curtain wall structure

Abstract

This invention relates to the field of photovoltaic curtain wall technology and discloses a distributed photovoltaic integrated building curtain wall structure, including a building wall surface, a curtain wall back panel on the building wall surface, and a plurality of mounting slots on the curtain wall back panel, which are arranged in a rectangular array along the X and Y axes; photovoltaic curtain wall components are installed in each of the mounting slots, and the photovoltaic curtain wall components include a curtain wall frame, with a glass plate and a reflector respectively installed at both ends of the curtain wall frame, and a photovoltaic panel is installed between the glass plate and the reflector; a first driving mechanism and a second driving mechanism are also provided on the building wall surface. This distributed photovoltaic integrated building curtain wall structure, by integrating photovoltaic cells into photovoltaic curtain wall components with both shading and reflective functions, can intelligently control the curtain wall to provide good lighting for the building interior while simultaneously generating photovoltaic power.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic curtain wall technology, specifically to a distributed photovoltaic integrated building curtain wall structure. Background Technology

[0002] Photovoltaic integrated building facades are a technology that integrates solar power generation (photovoltaic) products into building facades, also known as photovoltaic curtain walls. Designing a photovoltaic curtain wall requires consideration of various factors, including cells, templates, wires, and transformers. Cells form templates, templates form small cells, and these are connected by wires, which in turn form a PV transformer. A PV transformer is a closed curtain wall section, and each photovoltaic system can consist of one or more transformers. Each photovoltaic system first generates direct current (DC), then converts it to alternating current (AC), which is transmitted through a voltage grid. A reverse rectifier then converts the 230 / 400 volt voltage into electrical energy with a frequency typically of 50 Hz. Crystalline cells are interconnected by wires and attached to the large-surface templates. These cells are embedded in rigid resin glass, and the wires can be attached to the back of the template or the edge of the glass. Amorphous cells, as part of the template, are complete, interconnected planes embedded in two pieces of glass and highly transparent resin.

[0003] Existing photovoltaic curtain wall products have low photovoltaic conversion efficiency, typically less than 20%, because the daily sunlight exposure on the wall surface is limited and mostly not direct sunlight. Furthermore, the coverage of photovoltaic curtain walls reduces the amount of natural light entering the building through the wall, requiring increased intensity of indoor lighting and further reducing the practical value of photovoltaic curtain walls. Summary of the Invention

[0004] This invention provides a distributed photovoltaic integrated building curtain wall structure. By integrating photovoltaic cells onto photovoltaic curtain wall components with both shading and reflective functions, the structure can intelligently control the curtain wall to provide good lighting to the building while also maximizing the benefits of photovoltaic power generation. This solves the problems mentioned in the background art, such as the low photovoltaic conversion efficiency of existing photovoltaic curtain wall products and the lack of natural light penetrating the building interior due to the photovoltaic curtain wall covering, which necessitates increased indoor lighting intensity and further reduces the practical value of photovoltaic curtain walls.

[0005] The present invention provides the following technical solution: a distributed photovoltaic integrated building curtain wall structure, including a building wall, a curtain wall back panel is provided on the building wall, and a plurality of mounting slots are provided on the curtain wall back panel, the plurality of mounting slots being distributed in a rectangular array along the X-axis and Y-axis directions;

[0006] A photovoltaic curtain wall assembly is installed in each of the mounting slots. The photovoltaic curtain wall assembly includes a curtain wall frame, with a glass panel and a reflector respectively installed at both ends of the curtain wall frame, and a photovoltaic cell panel is installed between the glass panel and the reflector.

[0007] The building wall is also provided with a first driving mechanism and a second driving mechanism. The first driving mechanism is used to drive a plurality of photovoltaic curtain wall components to rotate based on the X-axis, and the second driving mechanism is used to drive a plurality of photovoltaic curtain wall components to rotate based on the Y-axis.

[0008] As an optional solution of the distributed photovoltaic integrated building curtain wall structure of the present invention, wherein: two first rotating rods are symmetrically arranged in each of the plurality of mounting slots, the first rotating rods are distributed along the X-axis direction, and two first rotating slots are symmetrically opened on the plurality of curtain wall frames, the first rotating slots being adapted to the first rotating rods;

[0009] The two adjacent first rotating rods are coaxially connected.

[0010] As an optional solution of the distributed photovoltaic integrated building curtain wall structure of the present invention, the first driving mechanism includes a limiting groove formed on the building wall, the limiting groove being distributed along the Y-axis direction, a rack being slidably arranged in the limiting groove, the rack being symmetrically provided with a first tooth and a second tooth, and a plurality of first rotating rods located near the first driving mechanism being provided with a first gear, the plurality of first gears meshing with the second tooth.

[0011] As an optional solution of the distributed photovoltaic integrated building curtain wall structure of the present invention, the first driving mechanism further includes a motor disposed on the building wall, and a second gear is disposed on the output shaft of the motor. The second gear is a half gear, and both the first tooth and the second tooth mesh with the second gear.

[0012] As an optional solution of the distributed photovoltaic integrated building curtain wall structure of the present invention, wherein: two second rotating rods are symmetrically arranged in each of the plurality of mounting slots, the second rotating rods are distributed along the Y-axis direction, and two second rotating slots are symmetrically opened on the plurality of curtain wall frames, the second rotating slots being adapted to the second rotating rods;

[0013] Two adjacent second rotating rods are coaxially connected, and several second rotating rods located near the second driving mechanism are connected to the second driving mechanism. The structure of the second driving mechanism is the same as that of the first driving mechanism.

[0014] As an optional solution to the distributed photovoltaic integrated building curtain wall structure described in this invention, it further includes a photovoltaic curtain wall intelligent control method, the photovoltaic curtain wall intelligent control method comprising:

[0015] Models of building daylighting schemes under different lighting conditions are constructed by simulating real-world scenarios.

[0016] Obtain a theoretical daylighting model of the building that changes over time;

[0017] In non-intelligent controlled building daylighting mode, the daylighting habits of building residents are collected to generate a building memory daylighting model;

[0018] A modified architectural daylighting model is established by coupling the architectural memory daylighting model and the architectural theoretical daylighting model.

[0019] In the intelligent control of building daylighting mode, the daylighting scheme model is retrieved from the daylighting scheme model library according to the building modified daylighting model and executed, so that the photovoltaic curtain wall components generate photovoltaic power in the shading mode of the glass panel, and control the building daylighting in the reflection mode of the reflector.

[0020] As an optional solution to the distributed photovoltaic integrated building curtain wall structure described in this invention, the step of constructing a building lighting scheme under different lighting conditions by simulating real-world scenarios includes:

[0021] Obtain architectural design drawings and real-scene data to analyze the building structure, lighting layout, decoration, and material parameters, and create a 3D model of the building.

[0022] Establish a library of building lighting scheme models by performing daylighting simulations on 3D building models;

[0023] The process of simulating daylighting in 3D building models to establish a building daylighting scheme model library includes:

[0024] Input the 3D building model into the light simulation scene, and adjust the parameters of the sunlight and clouds in the simulation scene;

[0025] Set the Class A parameters for the solar light source, including the direction of illumination parameter A1, the intensity of illumination parameter A2, and the ultraviolet intensity parameter A3;

[0026] Set the B-type parameters for the cloud layer, including cloud cover parameter B1, location parameter B2, and thickness parameter B3;

[0027] Set the C-type parameters of the building's 3D model, including the opening and closing parameters C1, location parameters C2, and opening area parameters C3 for several lighting points;

[0028] By arranging and combining the above specific parameters, several building lighting schemes R1, R2...Rn are generated;

[0029] The model simulates the refraction and reflection of light in the internal environment of the 3D building model by rendering several building lighting schemes, and obtains the light intensity distribution inside the building under different building lighting schemes, and establishes a building lighting scheme model library accordingly.

[0030] Specifically, the building is designed to contain rooms S1, S2...Sn;

[0031] Wherein, the average illuminance of any room Sm under the building lighting scheme R1 is Hm1, the average illuminance under the building lighting scheme R2 is Hm2, ..., the average illuminance under the building lighting scheme Rn is Hmn.

[0032] As an optional solution to the distributed photovoltaic integrated building curtain wall structure described in this invention, the step of obtaining the building's theoretical daylighting model that varies with the time axis includes:

[0033] The optimal average illuminance is set according to the function and purpose of different rooms in the building, including the optimal average illuminance H11 for room S1, the optimal average illuminance H21 for room S2, ... the optimal average illuminance Hn1 for room Sn;

[0034] The process of collecting residents' lighting habits to generate a building memory lighting model includes:

[0035] Obtain the average illuminance curves of different rooms in the building as a function of time axis when residents independently adjust the building's daylighting daily within a period T.

[0036] Calculate the mean curve of several average light intensity curves, place each of the several average light intensity curves and the mean curve in the same coordinate system, and calculate the area of ​​deviation.

[0037] Divide out a number of average illuminance curves whose deviation area is less than the standard value q, calculate the mean value of the curves and record it as the first building memory daylighting model, including the first tendency average illuminance H12 of room S1, the first tendency average illuminance H22 of room S2, ... the first tendency average illuminance Hn2 of room Sn.

[0038] Divide out a number of average illuminance curves whose deviation area is greater than or equal to the standard value q, calculate the mean value of the curves and record it as the second building memory daylighting model, including the second tendency average illuminance H13 of room S1, the second tendency average illuminance H23 of room S2, ... the second tendency average illuminance Hn3 of room Sn.

[0039] The method of coupling the architectural memory daylighting model and the architectural theoretical daylighting model to establish the architectural modified daylighting model includes:

[0040] Calculate the corrected average illuminance H1 for room S1, H2 for room S2, ..., Hn for room Sn, and establish a modified daylighting model for the building accordingly.

[0041] Wherein, if any room Sm has a first tendency average illuminance Hm2, then the corrected average illuminance Hm = Hm2 for room Sm.

[0042] If room Sm does not have a first-biased average illuminance Hm2, then the corrected average illuminance of room Sm is Hm = Hm1;

[0043] If room Sm has a second tendency average illuminance Hm3, then Hm = Hm3 for a certain period of the week corresponding to Hm3, and Hm = Hm2 for the rest of the week.

[0044] As an optional solution to the distributed photovoltaic integrated building curtain wall structure described in this invention, the step of retrieving a daylighting scheme model from the daylighting scheme model library based on the building modified daylighting model includes:

[0045] Obtain the Type A parameters of the building's external solar radiation and the Type B parameters of the clouds as they change over time.

[0046] Obtain the real-time corrected average illuminance H1, H2...Hn of each room in the building from the building's corrected daylighting model;

[0047] Based on the above data, the corresponding building lighting scheme is retrieved from the building lighting scheme model library;

[0048] Based on the retrieved building lighting scheme, the opening and closing of several lighting points and their opening area are controlled by referring to the Class C parameters of the building's 3D model.

[0049] After retrieving a daylighting scheme model from the daylighting scheme model library based on the building modified daylighting model and executing the procedure, the process also includes:

[0050] After executing the retrieved building lighting scheme, after a standard time t, the actual average illuminance H1' of room S1, the actual average illuminance H2' of room S2, ..., the actual average illuminance Hn' of room Sn are obtained.

[0051] If the actual average illuminance Hm' of any room Sm is less than the corrected average illuminance Hm;

[0052] Then, the region L within room Sm where the light intensity is lower than the corrected average light intensity Hm is identified, and a supplementary lighting strategy is implemented.

[0053] The supplemental lighting strategy includes:

[0054] Obtain the angle β between the direction of illumination and the horizontal line, and the height h from the skylight to the building floor;

[0055] The corresponding first or second drive mechanism controls several reflectors to rotate to angles α1, α2...αn with the horizontal line;

[0056] The supplementary lighting area formed by the reflection of sunlight by several mirrors is L1+L2+……Ln=L;

[0057] Wherein, for any supplementary lighting region, Lm = htan.

[0058] As an optional solution to the distributed photovoltaic integrated building curtain wall structure described in this invention, it further includes a photovoltaic curtain wall intelligent control system, which includes:

[0059] The collection module is used to acquire architectural design drawings and real-world data on building structure, lighting point layout, decoration and material parameters, as well as collect the lighting habits of building residents and obtain real-time solar light source parameters and cloud parameters that change over time.

[0060] The simulation module is used to create a 3D building model, simulate the lighting of the 3D building model to create a library of building lighting scheme models, obtain a theoretical lighting model of the building that changes over time, generate a building memory lighting model, and couple the building memory lighting model with the theoretical lighting model of the building to create a modified lighting model of the building.

[0061] The analysis and execution module is used to retrieve daylighting scheme models from the daylighting scheme model library based on the building's modified daylighting model, execute them, and implement supplementary lighting strategies.

[0062] The present invention has the following beneficial effects:

[0063] 1. This distributed photovoltaic integrated building curtain wall structure integrates photovoltaic cells between glass panels and reflectors. The entire photovoltaic curtain wall assembly can rotate along the X and Y axes. When the glass panel faces the direction of sunlight, it can track sunlight, improving photovoltaic conversion efficiency. When the reflector faces the direction of sunlight, it can supplement the building's interior lighting through reflection and refraction. Thus, it provides good lighting for the building interior while simultaneously generating photovoltaic power, enhancing the practical value of the photovoltaic curtain wall.

[0064] 2. This distributed photovoltaic integrated building curtain wall structure collects building parameters and constructs lighting schemes under different lighting and cloud cover conditions in simulated scenarios. It also collects residents' daily lighting habits to build a model memory to correct the theoretical model, resulting in a modified lighting model. Therefore, when implementing intelligent control of building lighting, it can quickly analyze and compare the best scheme from the building lighting scheme model library based on real-time environmental conditions, ensuring that the lighting in each room intelligently matches the residents' habits. Furthermore, after implementing the lighting scheme, its lighting effect is verified. If there are areas in the room with insufficient lighting, an active supplemental lighting strategy is implemented. Attached Figure Description

[0065] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0066] Figure 2 This is a cross-sectional view of the overall structure of the present invention.

[0067] Figure 3 For the present invention Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0068] Figure 4 For the present invention Figure 2 A magnified schematic diagram of the structure at point B in the middle.

[0069] Figure 5 This is a schematic diagram of the overall exploded structure of the present invention.

[0070] Figure 6 For the present invention Figure 5 A magnified schematic diagram of the structure at point C.

[0071] Figure 7 This is a perspective structural diagram of the photovoltaic curtain wall component in this invention.

[0072] Figure 8 This is an exploded structural diagram of the photovoltaic curtain wall component in this invention.

[0073] Figure 9 This is a flowchart illustrating the intelligent control method for photovoltaic curtain wall components in this invention.

[0074] Figure 10 This is a schematic diagram of the intelligent control system for photovoltaic curtain wall components in this invention.

[0075] Figure 11 This is a schematic diagram illustrating the principle of the intelligent control method for photovoltaic curtain wall components in this invention.

[0076] In the diagram: 100, building wall; 110, curtain wall back panel; 120, mounting groove; 200, photovoltaic curtain wall component; 210, curtain wall frame; 220, glass panel; 230, reflector; 240, photovoltaic panel; 300, first rotating rod; 310, first rotating groove; 400, first drive mechanism; 410, limiting groove; 420, rack; 430, first tooth; 440, second tooth; 450, first gear; 460, motor; 470, second gear; 500, second rotating rod; 510, second rotating groove; 600, second drive mechanism. Detailed Implementation

[0077] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0078] Example 1, please refer to Figures 1-8 A distributed photovoltaic integrated building curtain wall structure includes a building wall 100, a curtain wall back panel 110 is provided on the building wall 100, and a plurality of mounting slots 120 are provided on the curtain wall back panel 110, which are distributed in a rectangular array along the X-axis and Y-axis directions.

[0079] A photovoltaic curtain wall component 200 is installed in several mounting slots 120. The photovoltaic curtain wall component 200 includes a curtain wall frame 210. A glass panel 220 and a reflector 230 are respectively installed at both ends of the curtain wall frame 210. A photovoltaic cell panel 240 is installed between the glass panel 220 and the reflector 230.

[0080] The building wall 100 is also provided with a first drive mechanism 400 and a second drive mechanism 600. The first drive mechanism 400 is used to drive several photovoltaic curtain wall components 200 to rotate based on the X-axis, and the second drive mechanism 600 is used to drive several photovoltaic curtain wall components 200 to rotate based on the Y-axis.

[0081] In this embodiment: the building wall 100 is used to represent the building wall. In the figure, the X-axis direction corresponds to the left and right direction, the Y-axis direction corresponds to the up and down direction, and the Z-axis direction corresponds to the front and back direction.

[0082] The curtain wall back panel 110 can be composed of a curtain wall embedded plate, adapter, back panel, hanger, etc. As a conventional curtain wall installation structure, it will not be described in detail.

[0083] Several mounting slots 120 are pre-drilled in a rectangular array along the left-right and up-down directions on the curtain wall back panel 110. These rectangular mounting slots 120 are used to support the photovoltaic curtain wall modules 200. The curtain wall frame 210 serves as the base for the photovoltaic curtain wall modules 200. Photovoltaic panels 240 can be routed through the interior of the curtain wall frame 210. Each photovoltaic curtain wall module 200 can generate electricity independently, and the circuits of several photovoltaic curtain wall modules 200 are ultimately connected in parallel to the inverter. The wiring of the photovoltaic curtain wall modules 200, also using conventional technology, is not shown in the figure.

[0084] The photovoltaic curtain wall component 200 can rotate based on its own left-right central axis or up-down central axis, so that the glass panel 220 or the reflector 230 faces the direction of light. When light shines through the glass panel 220 onto the photovoltaic panel 240, the photovoltaic panel 240 generates electricity. When light shines onto the reflector 230, it will reflect and refract sunlight into the room.

[0085] Example 2 is an improvement upon Example 1. For details, please refer to [link / reference]. Figures 1-8 Two first rotating rods 300 are symmetrically arranged in several mounting slots 120. The first rotating rods 300 are distributed along the X-axis. Two first rotating slots 310 are symmetrically opened on several curtain wall frames 210. The first rotating slots 310 are adapted to the first rotating rods 300.

[0086] The two adjacent first rotating rods 300 are coaxially connected;

[0087] The first drive mechanism 400 includes a limiting groove 410 formed on the building wall 100. The limiting groove 410 is distributed along the Y-axis direction. A rack 420 is slidably arranged in the limiting groove 410. A first tooth 430 and a second tooth 440 are symmetrically arranged on the rack 420. A first gear 450 is arranged on a plurality of first rotating rods 300 located on the side close to the first drive mechanism 400. The plurality of first gears 450 mesh with the second tooth 440.

[0088] The first drive mechanism 400 also includes a motor 460 disposed on the building wall 100. A second gear 470 is disposed on the output shaft of the motor 460. The second gear 470 is a half gear. The first tooth 430 and the second tooth 440 both mesh with the second gear 470.

[0089] Two second rotating rods 500 are symmetrically arranged in several mounting slots 120. The second rotating rods 500 are distributed along the Y-axis. Two second rotating slots 510 are symmetrically opened on several curtain wall frames 210. The second rotating slots 510 are adapted to the second rotating rods 500.

[0090] Two adjacent second rotating rods 500 are coaxially connected, and several second rotating rods 500 located near the second drive mechanism 600 are all connected to the second drive mechanism 600. The structure of the second drive mechanism 600 is the same as that of the first drive mechanism 400.

[0091] In this embodiment, two first rotating rods 300 are symmetrically rotated and installed in the cavity of the mounting slot 120. Except for the leftmost and rightmost first rotating rods 300, the other two adjacent first rotating rods 300 are coaxially fixed.

[0092] First rotating grooves 310 are provided on both the left and right sides of the curtain wall frame 210. A limiting groove 410 is provided at the front end of the building wall 100. The rack 420 slides up and down along the limiting groove 410. A row of first teeth 430 is provided on the front inner wall of the rack 420, and a row of second teeth 440 is provided on the rear inner wall of the rack 420.

[0093] A first gear 450 is fixed on each of the first rotating rods 300 located on the far right. Each of the first gears 450 meshes with a second tooth 440, but does not contact a first tooth 430. A second gear 470 is connected to the output shaft of the motor 460. The second gear 470 can mesh with both the first tooth 430 and the second tooth 440, forming a reciprocating motion structure.

[0094] When several first rotating rods 300 are respectively inserted into several first rotating slots 310, the motor 460 drives the second gear 470 to rotate clockwise or counterclockwise. When the second gear 470 is in the range of meshing with the first tooth 430, the second gear 470 is not in contact with the second tooth 440. At this time, the clockwise rotation of the second gear 470 will drive the rack 420 to rise. The rise of the rack 420 will drive several first gears 450 to rotate counterclockwise, thereby driving several photovoltaic curtain wall components 200 to rotate counterclockwise along the X-axis. The counterclockwise rotation of the second gear 470 will drive the rack 420 to fall. The fall of the rack 420 will drive several first gears 450 to rotate clockwise, thereby driving several photovoltaic curtain wall components 200 to rotate clockwise along the X-axis.

[0095] When the second gear 470 is engaged with the second tooth 440, it is not in contact with the first tooth 430. In this state, clockwise rotation of the second gear 470 causes the rack 420 to descend, thereby causing several photovoltaic wall modules 200 to rotate clockwise along the X-axis. Counterclockwise rotation of the second gear 470 causes the rack 420 to rise, thereby causing several photovoltaic wall modules 200 to rotate counterclockwise along the X-axis. Its function is to provide two control output modes within different rotation ranges of the second gear 470, thus facilitating precise operation of the motor 460 to control the rotation of the photovoltaic wall modules 200.

[0096] Similarly, two second rotating rods 500 are symmetrically rotated and installed in the cavity of the mounting slot 120. Except for the uppermost and lowermost second rotating rods 500, the other two adjacent second rotating rods 500 are coaxially fixed.

[0097] The upper and lower sides of the curtain wall frame 210 are provided with second rotating grooves 510. The structure of the second driving mechanism 600 is the same as that of the first driving mechanism 400. The lowermost of the several second rotating rods 500 are all equipped with the structure of the first gear 450 in the first driving mechanism 400.

[0098] When the motor 460 rotates several photovoltaic curtain wall components 200 until their glass panels 220 face directly forward, the photovoltaic curtain wall components 200 can then rotate left and right to disengage the first rotating rod 300 from the first rotating slot 310, while the second rotating rod 500 and the second rotating slot 510 are inserted into each other. Its working principle is similar to that of a double-opening window.

[0099] Similarly, the photovoltaic curtain wall module 200 can be controlled to rotate in the Y-axis direction via the second drive mechanism 600.

[0100] Example 3 is an improvement upon Example 2. For details, please refer to [link / reference]. Figures 9-11 It also includes intelligent control methods for photovoltaic curtain walls, which include:

[0101] Models of building daylighting schemes under different lighting conditions are constructed by simulating real-world scenarios.

[0102] Obtain a theoretical daylighting model of the building that changes over time;

[0103] In non-intelligent controlled building daylighting mode, the daylighting habits of building residents are collected to generate a building memory daylighting model;

[0104] A modified architectural daylighting model is established by coupling the architectural memory daylighting model and the architectural theoretical daylighting model.

[0105] In the intelligent control of building daylighting mode, the daylighting scheme model is retrieved from the daylighting scheme model library according to the building modified daylighting model and executed, so that the photovoltaic curtain wall component 200 generates photovoltaic power in the shading mode of the glass panel 220, and controls the building daylighting in the reflection mode of the reflector 230.

[0106] In this embodiment, a non-intelligent control building daylighting mode is defined, which is manually controlled.

[0107] Furthermore, the intelligent control of building lighting mode uses pre-simulated combinations of various parameters to record and store them in the database, thereby enabling rapid responses to real-time changes in external lighting conditions, ensuring that the building's lighting and the results of residents' human control are consistent.

[0108] Example 4 is an improvement upon Example 3. For details, please refer to [link / reference]. Figures 9-11 The construction of building lighting schemes under different lighting conditions through simulation of real-world scenarios includes:

[0109] Obtain architectural design drawings and real-scene data to analyze the building structure, lighting layout, decoration, and material parameters, and create a 3D model of the building.

[0110] Establish a library of building lighting scheme models by performing daylighting simulations on 3D building models;

[0111] The process of simulating daylighting in 3D building models and establishing a library of building daylighting scheme models includes:

[0112] Input the 3D building model into the light simulation scene, and adjust the parameters of the sunlight and clouds in the simulation scene;

[0113] Set the Class A parameters for the solar light source, including the direction of illumination parameter A1, the intensity of illumination parameter A2, and the ultraviolet intensity parameter A3;

[0114] Set the B-type parameters for the cloud layer, including cloud cover parameter B1, location parameter B2, and thickness parameter B3;

[0115] Set the C-type parameters of the building's 3D model, including the opening and closing parameters C1, location parameters C2, and opening area parameters C3 for several lighting points;

[0116] By arranging and combining the above specific parameters, several building lighting schemes R1, R2...Rn are generated;

[0117] The model simulates the refraction and reflection of light in the internal environment of the 3D building model by rendering several building lighting schemes, and obtains the light intensity distribution inside the building under different building lighting schemes, and establishes a building lighting scheme model library accordingly.

[0118] Specifically, the building is designed to contain rooms S1, S2...Sn;

[0119] Wherein, the average illuminance of any room Sm under the building lighting scheme R1 is Hm1, the average illuminance under the building lighting scheme R2 is Hm2, ..., the average illuminance under the building lighting scheme Rn is Hmn;

[0120] Obtaining a building's theoretical daylighting model that varies over time includes:

[0121] The optimal average illuminance is set according to the function and purpose of different rooms in the building, including the optimal average illuminance H11 for room S1, the optimal average illuminance H21 for room S2, ... the optimal average illuminance Hn1 for room Sn.

[0122] In this embodiment, the light simulation scene can be achieved through various architectural natural lighting simulation software, such as PKPM-Daylight. The specific working principle will not be elaborated here.

[0123] In a lighting simulation scenario, a 3D building model is reconstructed. Different combinations of solar light sources and clouds are added to the scene. The lighting points on the 3D building model, i.e., each mounting slot 120, are also arranged with different parameter combinations. Through this process of parameter arrangement and combination, various foreseeable combinations of scenarios are derived and recorded as a building lighting scheme model library. The average illuminance in each room under each building lighting scheme is also recorded as feature data.

[0124] Furthermore, the theoretically optimal average illuminance is determined based on the function and purpose of each room within the building. Several models are retrieved from the building lighting scheme model library as theoretical models for later use, based on the theoretically optimal average illuminance for each room.

[0125] As an optional implementation scheme of the distributed photovoltaic integrated building curtain wall structure of this application, the method of collecting the lighting habits of building residents to generate a building memory lighting model includes:

[0126] Obtain the average illuminance curves of different rooms in the building as a function of time axis when residents independently adjust the building's daylighting daily within a period T.

[0127] Calculate the mean curve of several average light intensity curves, place each of the several average light intensity curves and the mean curve in the same coordinate system, and calculate the area of ​​deviation.

[0128] Divide out a number of average illuminance curves whose deviation area is less than the standard value q, calculate the mean value of the curves and record it as the first building memory daylighting model, including the first tendency average illuminance H12 of room S1, the first tendency average illuminance H22 of room S2, ... the first tendency average illuminance Hn2 of room Sn.

[0129] Divide the average illuminance curves into several average illuminance curves, and calculate the average value of the curves. Record the average value of the curves as the second building memory daylighting model, including the second tendency average illuminance H13 of room S1, the second tendency average illuminance H23 of room S2, ... the second tendency average illuminance Hn3 of room Sn.

[0130] In this embodiment: T can be set to ten days, and specifically, it can be updated according to the day length for each season to keep the sampling time period with similar day length. For any room, the average light intensity curve of the room within time T is averaged to obtain the mean curve, and then the daily average light intensity curve is divided.

[0131] If the calculated deviation area is less than q, it indicates that the average daily illumination curve belongs to the residents' daily habits and is classified as the first building memory daylighting model. If the deviation area is greater than or equal to q, it indicates that the residents' daylighting habits are relatively special and is classified as the second building memory daylighting model.

[0132] As an optional implementation scheme of the distributed photovoltaic integrated building curtain wall structure of this application, the building modified daylighting model is established by coupling the building memory daylighting model and the building theoretical daylighting model, including:

[0133] Calculate the corrected average illuminance H1 for room S1, H2 for room S2, ..., Hn for room Sn, and establish a modified daylighting model for the building accordingly.

[0134] Wherein, if any room Sm has a first tendency average illuminance Hm2, then the corrected average illuminance Hm = Hm2 for room Sm.

[0135] If room Sm does not have a first-biased average illuminance Hm2, then the corrected average illuminance of room Sm is Hm = Hm1;

[0136] If room Sm has a second tendency average illuminance Hm3, then Hm = Hm3 for a certain period of the week corresponding to Hm3, and Hm = Hm2 for the rest of the week.

[0137] In this embodiment: Furthermore, when establishing a modified daylighting model for any room, the existence of a second tendency average illuminance is predicated on the existence of a first tendency average illuminance.

[0138] If the room does not have a first-biased average illuminance and a second-biased average illuminance, then the theoretically optimal average illuminance shall be used.

[0139] If the room only has the first tendency average light intensity, then that shall be used as the standard.

[0140] If the room has a first tendency average light intensity and a second tendency average light intensity, for example, if the second tendency average light intensity exists on Sunday, then the first tendency average light intensity shall be used from Monday to Saturday, and the second tendency average light intensity shall be used on Sunday.

[0141] As an optional implementation scheme of the distributed photovoltaic integrated building curtain wall structure of this application, the process of retrieving a daylighting scheme model from the daylighting scheme model library based on the building modified daylighting model includes:

[0142] Obtain the Type A parameters of the building's external solar radiation and the Type B parameters of the clouds as they change over time.

[0143] Obtain the real-time corrected average illuminance H1, H2...Hn of each room in the building from the building's corrected daylighting model;

[0144] Based on the above data, the corresponding building lighting scheme is retrieved from the building lighting scheme model library;

[0145] Based on the retrieved building lighting scheme, the opening and closing of several lighting points within the building, as well as the opening area, are controlled by referring to the Class C parameters of the building's 3D model.

[0146] In this embodiment: under the intelligent control of building daylighting mode, by acquiring the A-type and B-type parameters outside the building and retrieving the same scheme from the building daylighting scheme model library, the daylighting points inside the building are adjusted according to the C-type parameters of the scheme to complete the intelligent control of building daylighting based on model memory.

[0147] As an optional implementation scheme of the distributed photovoltaic integrated building curtain wall structure of this application, after retrieving a daylighting scheme model from the daylighting scheme model library based on the building modified daylighting model and executing it, it further includes:

[0148] After executing the retrieved building lighting scheme, after a standard time t, the actual average illuminance H1' of room S1, the actual average illuminance H2' of room S2, ..., the actual average illuminance Hn' of room Sn are obtained.

[0149] If the actual average illuminance Hm' of any room Sm is less than the corrected average illuminance Hm;

[0150] Then, the region L within room Sm where the light intensity is lower than the corrected average light intensity Hm is identified, and a supplementary lighting strategy is implemented.

[0151] Supplemental lighting strategies include:

[0152] Obtain the angle β between the direction of illumination and the horizontal line, and the height h from the skylight to the building floor;

[0153] The corresponding first drive mechanism 400 or second drive mechanism 600 controls several reflectors 230 to rotate to angles α1, α2...αn with the horizontal line;

[0154] This results in a supplementary lighting area L1+L2+……Ln=L formed by several reflectors 230 reflecting sunlight.

[0155] Wherein, any supplementary lighting region Lm = htan2αm-β-90°.

[0156] In this embodiment: after implementing the above-mentioned scheme for intelligent control of building lighting, the lighting effect is also detected. If there is an area with insufficient lighting in a room, supplementary lighting can be selectively provided.

[0157] like Figure 11 As shown, after obtaining the length of the area L with insufficient light, the specific rotation angle of several photovoltaic curtain wall components 200 is calculated. The sunlight can be approximated as parallel lines, so that the areas where several reflectors 230 reflect sunlight can cover the area L when they are connected end to end.

[0158] Example 5 is an improvement upon Example 4. For details, please refer to [link / reference]. Figure 10 It also includes a photovoltaic curtain wall intelligent control system, which includes:

[0159] The collection module is used to acquire architectural design drawings and real-world data on building structure, lighting point layout, decoration and material parameters, as well as collect the lighting habits of building residents and obtain real-time solar light source parameters and cloud parameters that change over time.

[0160] The simulation module is used to create a 3D building model, simulate the lighting of the 3D building model to create a library of building lighting scheme models, obtain a theoretical lighting model of the building that changes over time, generate a building memory lighting model, and couple the building memory lighting model with the theoretical lighting model of the building to create a modified lighting model of the building.

[0161] The analysis and execution module is used to retrieve daylighting scheme models from the daylighting scheme model library based on the building's modified daylighting model, execute them, and implement supplementary lighting strategies.

[0162] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0163] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A distributed photovoltaic integrated building curtain wall structure, comprising a building wall (100), characterized in that: A curtain wall back panel (110) is provided on the building wall (100), and a plurality of mounting slots (120) are provided on the curtain wall back panel (110), and the plurality of mounting slots (120) are distributed in a rectangular array along the X-axis and Y-axis directions; A photovoltaic curtain wall assembly (200) is provided in each of the mounting slots (120). The photovoltaic curtain wall assembly (200) includes a curtain wall frame (210). A glass plate (220) and a reflector (230) are respectively provided at both ends of the curtain wall frame (210). A photovoltaic cell panel (240) is provided between the glass plate (220) and the reflector (230). The building wall (100) is also provided with a first driving mechanism (400) and a second driving mechanism (600). The first driving mechanism (400) is used to drive a plurality of photovoltaic curtain wall components (200) to rotate based on the X-axis, and the second driving mechanism (600) is used to drive a plurality of photovoltaic curtain wall components (200) to rotate based on the Y-axis. Two first rotating rods (300) are symmetrically arranged in each of the several mounting slots (120). The first rotating rods (300) are distributed along the X-axis. Two first rotating slots (310) are symmetrically opened on each of the several curtain wall frames (210). The first rotating slots (310) are adapted to the first rotating rods (300). The two adjacent first rotating rods (300) are coaxially connected; Two second rotating rods (500) are symmetrically arranged in each of the several mounting slots (120). The second rotating rods (500) are distributed along the Y-axis direction. Two second rotating slots (510) are symmetrically opened on each of the several curtain wall frames (210). The second rotating slots (510) are adapted to the second rotating rods (500). Two adjacent second rotating rods (500) are coaxially connected, and several second rotating rods (500) located near the second drive mechanism (600) are connected to the second drive mechanism (600). The structure of the second drive mechanism (600) is the same as that of the first drive mechanism (400). It also includes a smart control method for photovoltaic curtain walls, which includes: Models of building daylighting schemes under different lighting conditions are constructed by simulating real-world scenarios. Obtain a theoretical daylighting model of the building that changes over time; In non-intelligent controlled building daylighting mode, the daylighting habits of building residents are collected to generate a building memory daylighting model; A modified architectural daylighting model is established by coupling the architectural memory daylighting model and the architectural theoretical daylighting model. In the intelligent control of building daylighting mode, the daylighting scheme model is retrieved from the daylighting scheme model library according to the building modified daylighting model and executed, so that the photovoltaic curtain wall component (200) generates photovoltaic power in the shading mode of the glass panel (220) and controls the building daylighting in the reflection mode of the reflector (230).

2. The distributed photovoltaic integrated building curtain wall structure according to claim 1, characterized in that: The first driving mechanism (400) includes a limiting groove (410) formed on the building wall (100). The limiting groove (410) is distributed along the Y-axis. A rack (420) is slidably arranged in the limiting groove (410). A first tooth (430) and a second tooth (440) are symmetrically arranged on the rack (420). A first gear (450) is provided on a plurality of first rotating rods (300) located near the first driving mechanism (400). The plurality of first gears (450) mesh with the second tooth (440).

3. The distributed photovoltaic integrated building curtain wall structure according to claim 2, characterized in that: The first drive mechanism (400) further includes a motor (460) disposed on the building wall (100), and a second gear (470) is disposed on the output shaft of the motor (460). The second gear (470) is a half gear, and the first tooth (430) and the second tooth (440) mesh with the second gear (470).

4. The distributed photovoltaic integrated building curtain wall structure according to claim 1, characterized in that, The method of constructing building lighting schemes under different lighting conditions by simulating real-world scenarios includes: Obtain architectural design drawings and real-scene data to analyze the building structure, lighting layout, decoration, and material parameters, and create a 3D model of the building. Establish a library of building lighting scheme models by performing daylighting simulations on 3D building models; The process of simulating daylighting in 3D building models to establish a building daylighting scheme model library includes: Input the 3D building model into the light simulation scene, and adjust the parameters of the sunlight and clouds in the simulation scene; Set the Class A parameters for the solar light source, including the direction of illumination parameter A1, the intensity of illumination parameter A2, and the ultraviolet intensity parameter A3; Set the B-type parameters for the cloud layer, including cloud cover parameter B1, location parameter B2, and thickness parameter B3; Set the C-type parameters of the building's 3D model, including the opening and closing parameters C1, location parameters C2, and opening area parameters C3 for several lighting points; By arranging and combining the above specific parameters, several building lighting schemes R1, R2...Rn are generated; The model simulates the refraction and reflection of light in the internal environment of the 3D building model by rendering several building lighting schemes, and obtains the light intensity distribution inside the building under different building lighting schemes, and establishes a building lighting scheme model library accordingly. Specifically, the building is set to contain rooms S1, S2, ..., Sn; Among them, the average illuminance Hn1 of room Sn under building lighting scheme R1, the average illuminance Hn2 of room Sn under building lighting scheme R2, ... the average illuminance Hnn of room Sn under building lighting scheme Rn.

5. A distributed photovoltaic integrated building curtain wall structure according to claim 4, characterized in that, The method for obtaining the architectural theoretical daylighting model that varies with the time axis includes: The optimal average illuminance is set according to the function and purpose of different rooms in the building, including the optimal average illuminance H11 for room S1, the optimal average illuminance H21 for room S2, ... the optimal average illuminance Hn1 for room Sn; The process of collecting residents' lighting habits to generate a building memory lighting model includes: Obtain the average illuminance curves of different rooms in the building as a function of time axis when residents independently adjust the building's daylighting daily within a period T. Calculate the mean curve of several average light intensity curves, place each of the several average light intensity curves and the mean curve in the same coordinate system, and calculate the area of ​​deviation. Divide out a number of average illuminance curves whose deviation area is less than the standard value q, calculate the mean value of the curves and record it as the first building memory daylighting model, including the first tendency average illuminance H12 of room S1, the first tendency average illuminance H22 of room S2, ... the first tendency average illuminance Hn2 of room Sn. Divide out a number of average illuminance curves whose deviation area is greater than or equal to the standard value q, calculate the mean value of the curves and record it as the second building memory daylighting model, including the second tendency average illuminance H13 of room S1, the second tendency average illuminance H23 of room S2, ... the second tendency average illuminance Hn3 of room Sn. The method of coupling the architectural memory daylighting model and the architectural theoretical daylighting model to establish the architectural modified daylighting model includes: Calculate the corrected average illuminance H1 for room S1, H2 for room S2, ..., Hn for room Sn, and establish a modified daylighting model for the building accordingly. Wherein, if room Sn has a first tendency average illuminance Hn2, then the corrected average illuminance Hn = Hn2 for room Sn; If room Sn does not have a first-biased average illuminance Hn2, then the corrected average illuminance Hn = Hn1 for room Sn. If room Sn has a second tendency average light intensity Hn3, then Hn=Hn3 for a certain period of the week corresponding to Hn3, and Hn=Hn2 for the rest of the week.

6. A distributed photovoltaic integrated building curtain wall structure according to claim 5, characterized in that, The step of retrieving a daylighting scheme model from the daylighting scheme model library based on the building modified daylighting model includes: Obtain the Type A parameters of the building's external solar radiation and the Type B parameters of the clouds as they change over time. Obtain the real-time corrected average illuminance H1, H2...Hn of each room in the building from the building's corrected daylighting model; Based on the above data, the corresponding building lighting scheme is retrieved from the building lighting scheme model library; Based on the retrieved building lighting scheme, the opening and closing of several lighting points and their opening area are controlled by referring to the Class C parameters of the building's 3D model. After retrieving a daylighting scheme model from the daylighting scheme model library based on the building modified daylighting model and executing the procedure, the process also includes: After executing the retrieved building lighting scheme, after a standard time t, the actual average illuminance H1' of room S1, the actual average illuminance H2' of room S2, ..., the actual average illuminance Hn' of room Sn are obtained. If the actual average illuminance Hn' of room Sn is less than the corrected average illuminance Hn; Then, the region L in room Sn where the light intensity is lower than the corrected average light intensity Hn is identified, and a supplementary lighting strategy is implemented. The supplemental lighting strategy includes: Obtain the angle β between the direction of illumination and the horizontal line, and the height h from the skylight to the building floor; The first drive mechanism (400) or the second drive mechanism (600) is used to control several reflectors (230) to rotate to angles α1, α2...αn with the horizontal line respectively; The supplementary lighting area formed by the reflection of sunlight by several reflectors (230) is L1+L2+……Ln=L; Wherein, for any supplementary lighting region, Ln = htan(2αn - β - 90°).

7. The distributed photovoltaic integrated building curtain wall structure according to claim 6 further includes a photovoltaic curtain wall intelligent control system, characterized in that, The intelligent control system for the photovoltaic curtain wall includes: The collection module is used to acquire architectural design drawings and real-world data on building structure, lighting point layout, decoration and material parameters, as well as collect the lighting habits of building residents and obtain real-time solar light source parameters and cloud parameters that change over time. The simulation module is used to create a 3D building model, simulate the lighting of the 3D building model to create a library of building lighting scheme models, obtain a theoretical lighting model of the building that changes over time, generate a building memory lighting model, and couple the building memory lighting model with the theoretical lighting model of the building to create a modified lighting model of the building. The analysis and execution module is used to retrieve daylighting scheme models from the daylighting scheme model library based on the building's modified daylighting model, execute them, and implement supplementary lighting strategies.

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