Photovoltaic roadbed sunshade power supply structure and construction method thereof

Abstract

This invention relates to a photovoltaic roadbed shading power supply structure and its construction method. The photovoltaic roadbed shading power supply structure includes: a support unit, disposed on the roadbed slope, wherein multiple support units are provided, each support unit including multiple support parts, and the multiple support parts are spaced apart on the roadbed slope; a flexible transverse support part, disposed on the support parts and used to support photovoltaic panels, wherein one support unit and the photovoltaic panel disposed on the flexible transverse support part form a power generation unit, wherein the photovoltaic panel is parallel to the outer surface of the roadbed slope; and a charging system disposed on one side of the road surface and electrically connected to the photovoltaic panel. This invention can isolate the roadbed heat input from the source, maintain the roadbed thermal balance, reduce energy consumption, and lower engineering costs, thus solving the problem of roadbed thaw settlement related to new structures for the prevention of permafrost roadbeds.

Description

Technical Field

[0001] This invention relates to the field of shading technology in permafrost regions, and in particular to a technology for addressing roadbed degradation and thaw settlement deformation in permafrost regions caused by strong heat radiation in plateau areas. Specifically, it relates to a photovoltaic roadbed shading power supply structure and its construction method. Background Technology

[0002] Permafrost refers to various rocks and soils with temperatures below 0°C and containing ice. Based on their duration, they can be divided into perennial permafrost and seasonally frozen permafrost. Perennial permafrost is soil that has been frozen for more than three years, with only the top few meters of soil experiencing summer thawing and winter freezing; this layer is also known as the seasonally active layer. Seasonally frozen permafrost is soil that freezes in winter and thaws in summer only within a few meters of the surface; this layer is also known as the seasonally frozen layer or seasonally active layer. Permafrost regions are widely distributed in my country, covering approximately 22.4% of the country's total area, ranking third in the world. Permafrost is formed under the combined influence of climate and geological environment, and its physical and mechanical properties are highly sensitive to temperature changes. When highways are built in permafrost regions, the hydrothermal balance of the permafrost beneath the roadbed is disrupted, leading to permafrost degradation and triggering freeze-thaw disasters.

[0003] The Qinghai-Tibet Plateau in my country is mostly composed of high-temperature permafrost, which is highly susceptible to degradation from even slight disturbances. This leads to severe thaw settlement and deformation of the roadbed, affecting the stability and service performance of the engineering structure. Existing road projects in permafrost regions show that annual thaw settlement due to permafrost degradation exceeds 10 cm, with cumulative thaw settlement exceeding 50 cm over many years. In the most severely affected sections, cumulative thaw settlement exceeds 2 m. Therefore, many road sections in cold regions of my country are in a state of constant damage and repair.

[0004] Permafrost degradation is a major threat to road construction in my country's permafrost regions. Therefore, there is an urgent need for a new type of roadbed structure that offers high insulation efficiency, low construction costs, and effectively isolates the roadbed from heat input at the source to prevent thaw settlement and deformation of permafrost roadbeds.

[0005] Currently, the main measures to prevent thaw settlement and deformation of permafrost roadbeds are as follows:

[0006] 1. Thermal insulation: A layer of insulation material is laid inside the roadbed to prevent heat from the upper layer from entering the lower soil by utilizing the low thermal conductivity of the insulation material. Commonly used insulation materials in engineering include polypropylene foam board (EPS) and polyurethane foam board (PU).

[0007] 2. Rockfill slope protection: Due to the large pores of the rocks, air can flow freely in the rockfill slope protection subgrade. The subgrade will eventually exhibit a cold input greater than a heat input, and the subgrade temperature field will continue to decrease, thus achieving the stability of the permafrost subgrade.

[0008] 3. Install ventilation pipes: The ventilation pipes are buried in the roadbed soil. The working principle is that in winter, the denser cold air, under its own weight and the action of wind, will expel the hot air in the pipes and continuously carry away the heat of the surrounding soil to ensure that the roadbed slope is kept frozen.

[0009] 4. Installation of Heat Pipes: A heat pipe is a sealed tube with a two-way flow of vapor and liquid, filled with a working fluid (ammonia). The upper end of the tube is a condenser, and the lower end is an evaporator. When the condensation temperature is lower than the evaporation temperature, the liquid working fluid in the evaporator evaporates and absorbs heat, transferring the heat upwards to the condenser end. Upon encountering the cold air, it condenses back into liquid and flows back to the evaporator end, thus completing the cycle. Based on this refrigeration principle, the heat pipe stores cold energy in the roadbed to prevent melting and deformation.

[0010] 5. Refrigeration devices: These devices transfer heat from a low-temperature object to a high-temperature object by doing work with external force. The work consumed can be compensated by electrical energy, solar energy, etc. Common refrigeration methods include compression refrigeration, adsorption refrigeration, and semiconductor refrigeration.

[0011] 6. Install sunshades: Installing sunshades on frozen soil subgrades can directly block solar radiation, reduce the temperature of the road surface and the subgrade, thereby preventing thaw settlement and deformation, and ensuring road safety.

[0012] While the above measures can prevent thaw settlement and deformation of permafrost subgrades, they all have limitations. For example, using thermal insulation materials alone has low cooling efficiency and poor seasonal compatibility, and is generally used in conjunction with protective measures such as heat pipes. Rockfill slope protection is susceptible to soil desertification and snow accumulation; when the pore structure is blocked, its cooling performance is greatly reduced. The method of burying ventilation pipes can only be used to close the pipes during the warm season to prevent external hot air from entering, and cannot guarantee that the permafrost subgrade remains at a low temperature. Heat pipes face similar problems; the upper condenser temperature must be lower than the lower evaporator temperature, so they are only effective during the cold season. Using refrigeration devices can avoid the above problems, but requires additional electricity for power compensation, has low cooling capacity, increases cost, and raises construction difficulty. Setting up sunshades for the subgrade is cheaper and easier to construct, but only provides sunshade and heat insulation and cannot effectively utilize the abundant solar energy in high-altitude areas to power charging stations.

[0013] In summary, existing measures to prevent thaw settlement and deformation of permafrost roadbeds are either difficult to adapt to temperature changes and have low cooling efficiency, or they are expensive and inconvenient to construct.

[0014] In view of this, the present invention is proposed. Summary of the Invention

[0015] The technical problem to be solved by this invention is to overcome the shortcomings of the existing technology and provide a photovoltaic roadbed shading power supply structure that can isolate the roadbed heat input from the source, maintain the roadbed thermal balance, consume less energy, and reduce engineering costs, thus solving the problem of roadbed thaw settlement in permafrost roadbed prevention and control structures.

[0016] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows:

[0017] A photovoltaic roadbed shading power supply structure includes:

[0018] pavement;

[0019] The roadbed slope is set on the side of the road surface;

[0020] A support unit is provided on the roadbed slope. Multiple support units are provided, wherein each support unit includes multiple support parts, and the multiple support parts are spaced apart on the roadbed slope.

[0021] A flexible lateral support is provided on the support and is used to support the photovoltaic panel. One of the support units and the photovoltaic panel provided on the flexible lateral support form a power generation unit. The photovoltaic panel is parallel to the outer surface of the roadbed slope.

[0022] The charging system is located on one side of the road surface and is electrically connected to the photovoltaic panel.

[0023] In a preferred embodiment of any of the above solutions, the support portion includes:

[0024] The vertical support member is connected at one end to the roadbed slope and at the other end to support the flexible transverse support.

[0025] In a preferred embodiment of any of the above solutions, the flexible lateral support includes:

[0026] A connector is provided on the vertical support member;

[0027] A connecting plate is disposed on the connecting member;

[0028] A connecting rod is connected to the connecting plate and passes through the middle of the connecting plate;

[0029] Steel strands are threaded through the side of the photovoltaic panel to connect the photovoltaic panel, and the ends of the steel strands are wound around the connecting rod to support the photovoltaic panel. Multiple photovoltaic panels and steel strands are provided.

[0030] In a preferred embodiment of any of the above solutions, the flexible lateral support further includes:

[0031] An inclined steel bracket is connected to the connecting piece;

[0032] A horizontal steel support is connected at both ends to the upper surface of the inclined steel support, wherein the horizontal steel support is used to support the steel strand.

[0033] In a preferred embodiment of any of the above schemes, the photovoltaic roadbed shading power supply structure further includes:

[0034] The reinforcement part is used to connect with the connector and the roadbed slope.

[0035] In a preferred embodiment of any of the above solutions, the reinforcing part includes:

[0036] The first reinforcement component is disposed on one side of the vertical support member and is used to connect the connector and the roadbed slope respectively;

[0037] The second reinforcement component is located on the other side of the vertical support member and is used to connect the connector and the roadbed slope.

[0038] In a preferred embodiment of any of the above solutions, the first reinforcement component includes:

[0039] The first fixing seat is set on the roadbed slope and located on one side of the vertical support member;

[0040] The first stay cable has one end connected to the first fixed base and the other end connected to one end of the connector.

[0041] In a preferred embodiment of any of the above solutions, the second reinforcement component includes:

[0042] The second fixing seat is set on the roadbed slope and located on the other side of the vertical support member;

[0043] The second stay cable has one end connected to the second fixed base and the other end connected to the other end of the connector.

[0044] In a preferred embodiment of any of the above schemes, the photovoltaic panels on each power generation unit have a horizontal spacing D ≥ 0.5m and a vertical spacing L ≥ 0.3m, wherein the overlap gap d between two photovoltaic panels on the power generation units is ≤ 0.1m.

[0045] Secondly, a construction method for a photovoltaic roadbed shading power supply structure includes the following steps:

[0046] Step 1: Construct the roadbed slope and pavement, and form a certain angle between the roadbed slope and the pavement;

[0047] Step 2: Install vertical support components on the roadbed slope, and then pour the first and second fixing seats;

[0048] Step 3: Install a connector on the top of the vertical support member, and weld a connecting plate onto the connector. Connect the two ends of the first stay cable to the connector and the first fixed seat respectively, and connect the two ends of the second stay cable to the connector and the second fixed seat respectively.

[0049] Step 4: Install the connecting rod on the connecting plate and install the inclined steel bracket together with the connecting piece;

[0050] Step 5: Install the steel strand by winding and securing both ends of the steel strand together with the connecting rod.

[0051] Step 7: Install multiple photovoltaic panels on the steel strand.

[0052] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0053] This invention lays photovoltaic panels directly on the roadbed slope, which can directly block solar radiation and prevent heat from entering the soil inside the roadbed. It has good seasonal adaptability and utilizes the abundant clean energy of solar power in the Qinghai-Tibet Plateau region to generate electricity, which has the advantages of ecological carbon reduction, energy saving and environmental protection.

[0054] This invention can not only solve the problem of thaw settlement and deformation of permafrost roadbeds, but also provide charging for new energy vehicles. Compared with traditional prevention and control measures, it adds the practical function of road charging, which has a wider acceptance among the public and greater engineering applicability.

[0055] Using flexible brackets to fix photovoltaic panels has the advantages of flexible layout, less steel consumption, and lower load-bearing capacity, which can greatly shorten the construction period and reduce costs. Compared with traditional fixed brackets, flexible photovoltaic brackets have the following advantages: flexible brackets can be freely erected in all directions through four installation methods: suspension, tension, hanging, and bracing, with flexible support methods; flexible brackets have a large span and wide site adaptability; flexible brackets use less steel, have a lower load-bearing capacity, lower project costs, and strong pre-installation capabilities.

[0056] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0057] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. Some specific embodiments of this application will be described in detail below with reference to the accompanying drawings in an exemplary and non-limiting manner. The same reference numerals in the drawings designate the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0058] Figure 1 This is a side view of the photovoltaic roadbed shading power supply structure of the present invention.

[0059] Figure 2 This is a top view of the photovoltaic roadbed shading power supply structure of the present invention.

[0060] Figure 3 This is a partial enlarged schematic diagram of the photovoltaic roadbed shading power supply structure of the present invention.

[0061] Figure 4 This invention relates to a photovoltaic roadbed shading power supply structure. Figure 3 Enlarged diagram of point A in the diagram.

[0062] In the diagram: 1. Roadbed slope; 2. Charging system; 3. Support column; 4. Road surface; 5. Photovoltaic panel; 6. Steel strand; 7. Inclined steel bracket; 8. Connector; 9. Connecting plate; 10. Connecting rod; 11. First stay cable; 12. Second stay cable; 13. First fixed seat; 14. Second fixed seat.

[0063] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. The elements in the drawings are schematic and not drawn to scale. Detailed Implementation

[0064] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of the present application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative effort should fall within the scope of protection of the present application.

[0065] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0066] In the description of this application, it is important to understand that thaw settlement deformation refers to the phenomenon of permafrost thawing, collapsing, and subsiding when temperatures rise. When highways are built in permafrost regions, the hydrothermal balance of the permafrost is disrupted, which can easily lead to permafrost degradation and induce thaw settlement disasters.

[0067] Active layer; a layer of natural soil located a few meters below the ground in permafrost or seasonally frozen soil, which freezes in winter and thaws in summer.

[0068] Flexible photovoltaic support structure: It consists of key components such as prestressed steel strands, stay cables and load-bearing structure, and can achieve a large span of 10m to 30m. In addition, the use of flexible support structure has the advantages of less steel consumption, lower cost and shorter construction period.

[0069] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0070] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0071] The following embodiments of this application use a photovoltaic roadbed shading power supply structure as an example to illustrate the solution of this application in detail. However, this embodiment does not limit the scope of protection of this application.

[0072] like Figures 1 to 4 As shown, the present invention provides a photovoltaic roadbed shading power supply structure, comprising:

[0073] Road surface 4;

[0074] Roadbed slope 1 is provided on the side of the road surface 4;

[0075] A support unit is provided on the roadbed slope 1. Multiple support units are provided, wherein each support unit includes multiple support parts, and the multiple support parts are spaced apart on the roadbed slope 1.

[0076] A flexible lateral support is provided on the support and is used to support the photovoltaic panel 5. One of the support units and the photovoltaic panel 5 provided on the flexible lateral support form a power generation unit. The photovoltaic panel 5 is parallel to the outer surface of the roadbed slope 1.

[0077] The charging system 2 is located on one side of the road surface 4 and is electrically connected to the photovoltaic panel 5.

[0078] In the photovoltaic roadbed shading power supply structure described in this embodiment of the invention, by directly laying photovoltaic panels 5 on the roadbed slope 1, solar radiation can be directly blocked to prevent heat from entering the soil inside the roadbed. This provides good seasonal adaptability. Furthermore, utilizing the abundant clean energy of solar power in the Qinghai-Tibet Plateau region, it offers advantages in ecological carbon reduction, energy conservation, and environmental protection. It not only solves the problem of thawing and deformation of permafrost roadbeds but also provides charging for new energy vehicles. Compared to traditional prevention and control measures, it adds the practical function of road charging, resulting in wider public acceptance and engineering applicability. The charging system 2 consists of a solar controller and a battery (or battery bank). An inverter can also be configured as needed. Solar energy is a clean and renewable new energy source with wide applications in people's lives and work, one of which is converting solar energy into electrical energy. Solar power generation usually refers to solar photovoltaic power generation, which has the advantages of being energy-efficient and energy-saving. Featuring components that are noiseless, pollution-free, and highly reliable, this system has excellent application prospects in communication power supply systems in remote areas. The solar controller controls the operating status of the entire charging system 2 and provides overcharge and over-discharge protection for the battery. The solar controller includes temperature compensation, a light-controlled switch, and a time-controlled switch for intelligent control. The battery is typically a lead-acid battery; in small-scale systems, nickel-metal hydride, nickel-cadmium, or lithium batteries can also be used. Its function is to store the electrical energy supplied by the solar panels when there is sunlight and release it when needed. The photovoltaic charging piles for new energy vehicles are installed at the foot of slopes, at a height of 2-3 meters, with spacing adjustable according to actual needs. The main function of these photovoltaic charging piles is to use the electrical energy converted by the photovoltaic system for vehicle charging, thereby reducing energy consumption and achieving ecological carbon reduction.

[0079] In the photovoltaic roadbed shading power supply structure described in this embodiment of the invention, the photovoltaic panels 5 are fixed to the roadbed slope by flexible transverse supports. To maximize the shading effect, the photovoltaic panels are arranged parallel to the slope surface, so that the photovoltaic panels can always block sunlight regardless of the change in the incident angle of the sun. It is recommended that the height H of the photovoltaic panels from the slope surface be greater than 0.5m to prevent interference from weeds on the slope. Therefore, when the sun shines directly during the day, the photovoltaic panels 5 laid on the roadbed slope 1 play a role in blocking solar radiation. Considering factors such as the spacing of the photovoltaic panels 5, the total area of ​​the photovoltaic panels 5 is [missing information]. With a slope surface area of ​​over 80%, it is believed that under the action of the photovoltaic panel 5, the surface temperature of the permafrost subgrade can be controlled, preventing significant thaw settlement deformation. When the angle of sunlight incidence changes, since the photovoltaic panel 5 is laid parallel to the subgrade slope 1, it can effectively resist solar radiation and prevent the temperature of the permafrost area from rising during the day. The integrated structure of photovoltaic panel and charging pile has a coordinated effect: the photovoltaic panel first converts solar energy into electrical energy for storage, and the stored electrical energy can be supplied to the charging service area at the foot of the slope, where the charging piles can then charge new energy vehicles.

[0080] like Figures 1 to 4 As shown, the support portion includes:

[0081] A vertical support member is connected at one end to the roadbed slope 1 and at the other end to support the flexible transverse support part. The vertical support member is a support column 3, which is a steel column. Therefore, the steel column has a relatively strong structure, and multiple support columns 3 are provided and spaced apart on the roadbed slope 1.

[0082] like Figures 1 to 4 As shown, the flexible lateral support includes:

[0083] Connector 8 is disposed on the vertical support member;

[0084] Connecting plate 9 is disposed on the connecting member 8;

[0085] The connecting rod 10 is connected to the connecting plate 9 and passes through the middle of the connecting plate 9;

[0086] Steel strands 6 are threaded through the side of the photovoltaic panel 5 to connect the photovoltaic panel 5, and the ends of the steel strands 6 are wound around the connecting rod 10 to support the photovoltaic panel 5. Multiple photovoltaic panels 5 and steel strands 6 are provided.

[0087] In the photovoltaic roadbed shading power supply structure described in this embodiment of the invention, the connecting member 8 is a connecting steel plate. Bolts are pre-embedded on the support column 3, so the connecting steel plate and the support column 3 are connected by bolts, facilitating disassembly and installation. To make the structure more robust, the connecting steel plate is welded to the connecting plate 9, and the connecting plate 9 is connected to the connecting rod 10 by bolts, facilitating disassembly and installation. The steel strand 6 is wound together with the connecting rod 10 and fixed to the connecting rod 10 by bolts at both ends of the connecting rod 10. Photovoltaic panels 5 are installed on the steel strands 6. The steel strands 6 are tensioned and tensioned by bolts at both ends, and a rigid foundation is used to provide reaction force to achieve stability. A large span of 10m to 30m can be achieved in the transverse direction. The number of fixed endpoints can be determined according to the size of the photovoltaic panels, and it is recommended to choose 3 to 5. The steel strands can be connected with bolts. In order to fix the photovoltaic panels more firmly on the steel strands, steel strands can also be arranged in the longitudinal direction to form a wire network. It is advisable to cover each photovoltaic panel with 3 longitudinal steel strands. During construction, the transverse steel strands should be fixed first, and then the longitudinal steel strands should be overlapped according to the photovoltaic panel selection.

[0088] The steel strand adopts a double foundation scheme at both ends: steel column foundations are connected to the steel strand, mainly to provide reaction force. Since the steel strand is fixed to bolts, steel plates are used to connect the bolts and the steel column foundations. Two additional cable-stayed foundations are also required to bear the horizontal force generated by the steel strand. The cable-stayed foundations can be made of concrete gravity type, and the bottom structure is also circular. The number of steel column foundations should be consistent with the number of fixed endpoints, and steel supports are fixed between them. For ease of construction, the steel strand is fixed first, and then the photovoltaic panels are laid in the order of "longitudinal first, then transverse", that is, the longitudinal photovoltaic panels are laid first, and then the transverse photovoltaic panels are laid until the construction within one unit span is completed. To facilitate the inspection of photovoltaic panels by professionals, four photovoltaic panels with overlapping long sides are considered as a unit. The horizontal spacing D between every two units should not be less than 0.5m, and the longitudinal spacing L should not be less than 0.3m. No requirement is placed on the overlap gap d of the photovoltaic panels, but it should not be greater than 0.1m. Considering that the aspect ratio of the selected photovoltaic panels is close to 2:1, the method of "overlapping the short side of the photovoltaic panels in the longitudinal direction and overlapping the long side of the photovoltaic panels in the transverse direction" is adopted to fill a unit span.

[0089] The selection of photovoltaic panels is shown in Table 1 below:

[0090]

[0091]

[0092] like Figures 1 to 4 As shown, the flexible lateral support also includes:

[0093] The inclined steel bracket 7 is connected to the connector 8;

[0094] The transverse steel support 15 is connected at both ends to the upper surface of the inclined steel support 7, wherein the transverse steel support 15 is used to support the steel strand 6.

[0095] In the photovoltaic roadbed shading power supply structure described in this embodiment of the invention, the two ends of the inclined steel bracket 7 are respectively connected to the connecting piece 8 by bolts, which can facilitate disassembly and installation. The inclined steel bracket 7 and the transverse steel bracket 15 are connected by screws or welded. The transverse steel bracket 15 can support the inclined steel bracket 7, thereby making its structure more stable. In addition, in order to prevent the steel strand 6 from slipping when supporting the photovoltaic panel 5, the steel strand 6 is threaded through the transverse steel bracket 15, thereby making the support structure of the steel strand 6 more stable. In order to fix the photovoltaic panel more firmly on the flexible bracket, the longitudinal... Alternatively, steel strands can be arranged to form a network. It is advisable to have three longitudinal steel strands covering each photovoltaic panel. During construction, the transverse steel strands should be fixed first, and then the longitudinal steel strands should be overlapped according to the photovoltaic panel selection. Flexible brackets are used to fix the photovoltaic panels, offering advantages such as flexible layout, low steel consumption, and low load-bearing capacity. This significantly shortens the construction period and reduces costs. Compared to traditional fixed brackets, flexible photovoltaic brackets offer several advantages: they allow for free erection in all directions through four installation methods: suspension, tension, hanging, and bracing, providing flexible support; they offer large spans and wide site adaptability; and they require less steel, have lower load-bearing capacity, lower project costs, and are highly prefabricated.

[0096] like Figures 1 to 4 As shown, the photovoltaic roadbed shading power supply structure further includes:

[0097] The reinforcement part, used for connecting the connector 8 and the roadbed slope 1, includes:

[0098] The first reinforcement component is disposed on one side of the vertical support member and is used to connect the connector 8 and the roadbed slope 1 respectively;

[0099] The second reinforcing member is disposed on the other side of the vertical support member and is used to connect the connector 8 and the roadbed slope 1; the first reinforcing member includes:

[0100] The first fixing seat 13 is set on the roadbed slope 1 and located on one side of the vertical support member;

[0101] The first stay cable 11 has one end connected to the first fixing base 13 and the other end connected to one end of the connector 8; the second reinforcement component includes:

[0102] The second fixing seat 14 is set on the roadbed slope 1 and located on the other side of the vertical support member;

[0103] The second cable 12 is connected at one end to the second fixed seat 14 and at the other end to the other end of the connector 8. The photovoltaic panels 5 on each power generation unit have a horizontal spacing D≥0.5m and a vertical spacing L≥0.3m, wherein the overlap gap d between two photovoltaic panels 5 on the power generation units is ≤0.1m.

[0104] In the photovoltaic roadbed shading power supply structure described in this embodiment of the invention, the first fixed seat 13 and the second fixed seat 14 are cable-stayed foundations, which are made of concrete and connected to steel strands by steel column foundations. They mainly provide reaction force. Since the steel strands are fixed on bolts, steel plates are used to connect the bolts and the steel column foundations. Two additional cable-stayed foundations are also needed to bear the horizontal force generated by the steel strands. The cable-stayed foundations can be made of concrete gravity type, and the bottom structure is also circular. The number of steel column foundations should be consistent with the number of fixed endpoints, and steel supports are fixed between them.

[0105] In the photovoltaic roadbed shading power supply structure described in this embodiment of the invention, in order to ensure the stability of the circuit during the discharge of the battery, a monitoring device for real-time detection of the battery is also provided in this application. Multiple monitoring devices are provided and are connected to the control terminal respectively. Therefore, when the monitoring device is working, it first performs a self-test to determine whether the clock storage module and temperature sensor in the monitoring device are properly connected, and reads out the serial number, physical address code, and charging and discharging parameters of the monitoring device stored in the storage module. If an abnormality occurs, an error prompt will be given to the control terminal.

[0106] Once the monitoring device confirms no abnormalities during self-testing, it begins collecting data on the battery's charging and discharging voltage, current, and temperature. Based on the collected data, it determines whether the battery's charging and discharging is abnormal and handles any abnormalities accordingly. If no abnormalities are found, the data is displayed, and communication with the control terminal is initiated as needed. If a charging or discharging abnormality is detected, the process immediately interrupts and enters the charging and discharging control program to control the charging and discharging process. The program also performs cyclical detection of key data related to the abnormality until the abnormality is resolved, at which point the interruption is terminated.

[0107] The control terminal converts the monitored current information into an electrical signal using an AD converter. The converted electrical signal is then used to calculate the terminal voltage of each battery based on the voltage divider amplification factor. In the process of converting the current information into an electrical signal, the results of multiple conversions are sorted, and the middle part of the electrical signal is taken and its average value is calculated. The voltage and current of the circuit are calculated based on the average value, thus improving the detection accuracy.

[0108] The monitoring device includes a control module, which controls the battery to pre-charge at a low voltage during charging. The module performs temperature compensation calculations based on the ambient temperature and then gradually increases the voltage. It determines the charging stage based on changes in charging voltage and current, and performs constant-voltage, current-limited charging. Charging is interrupted when the battery overheats, and charging resumes after cooling. During constant-voltage, current-limited charging, if battery overvoltage or overcurrent occurs, or if switching to constant-voltage charging is required, the PWM duty cycle is adjusted based on the battery terminal voltage. In case of extreme individual battery overvoltage or overcurrent, voltage adjustment is performed based on the extreme individual battery terminal voltage. Charging is disconnected after the battery is fully charged to prevent anode passivation caused by prolonged float charging. State of Charge (SOC) is dynamically estimated based on charging current and time during the charging process.

[0109] Each of the batteries is equipped with a charge / discharge monitoring board, which is connected to the monitoring device. Each charge / discharge monitoring board is equipped with a physical address code corresponding to the battery. Therefore, the monitoring device identifies the battery by matching the physical address code detected in real time with the physical address code pre-stored in the storage module, thereby enabling the real-time location of the battery for easy retrieval later.

[0110] Each monitoring device is used to monitor multiple charge / discharge monitoring boards. After a monitoring device sends a control command to a charge / discharge monitoring board, if no response is received from the monitoring board within a waiting period, the control command is resent. If no response is received after a certain preset number of resentments, the monitoring device issues a warning to the control terminal and continues to send commands to the next charge / discharge monitoring board until all control commands have been sent. When a response is received from a charge / discharge monitoring board, data processing is performed according to the command from the charging / discharge monitoring board, and the data is sent to the control terminal.

[0111] A construction method for a photovoltaic roadbed shading power supply structure, the construction method comprising the following steps:

[0112] Step 1: Construct the roadbed slope 1 and road surface 4, forming a certain angle between them. The photovoltaic panels are fixed to the roadbed slope using flexible transverse supports. To maximize the shading effect, the photovoltaic panels are arranged parallel to the slope surface. This ensures that the photovoltaic panels can always block sunlight regardless of the angle of incidence. It is recommended that the height H of the photovoltaic panels from the slope surface be greater than 0.5m to prevent interference from weeds on the slope. During the day, when the sun shines directly, the photovoltaic panels laid on the roadbed play a role in blocking solar radiation. Considering factors such as the spacing between photovoltaic panels, the total area of ​​photovoltaic panels should account for more than 80% of the slope surface area. Therefore, it is believed that under the action of photovoltaic panels, the surface temperature of permafrost roadbed can be controlled, and significant thaw settlement deformation will not occur. When the angle of sunlight incidence changes, since the photovoltaic panels are laid parallel to the roadbed, they can always effectively resist solar radiation and prevent the temperature of the permafrost area from rising during the day. The integrated structure of photovoltaic panels and charging piles has a coordinated effect: the photovoltaic panels first convert solar energy into electrical energy for storage, and the stored electrical energy can be supplied to the charging service area at the foot of the slope, and the charging piles in the service area can then charge new energy vehicles.

[0113] Step 2: Install vertical support components on the roadbed slope 1, and then pour the first fixing seat 13 and the second fixing seat 14;

[0114] Step 3: Install connector 8 on the top of the vertical support member, and weld connecting plate 9 on connector 8. Connect the two ends of the first cable 11 to connector 8 and first fixed seat 13 respectively, and connect the two ends of the second cable 12 to connector 8 and second fixed seat 14 respectively.

[0115] Step 4: Install the connecting rod 10 on the connecting plate 9, and install the inclined steel bracket 7 and the connecting piece 8 together;

[0116] Step 5: Install steel strands 6. Wrap and fix both ends of the steel strands 6 to the connecting rods 10. The flexible transverse support is fixed with bolts at both ends to tension the prestressed steel strands, and a rigid foundation is used to provide reaction force to achieve stability. A large span of 10m to 30m can be achieved in the transverse direction. The number of fixed endpoints can be determined according to the size of the photovoltaic panel, and it is recommended to choose 3 to 5. The steel strands can be connected with bolts. In order to fix the photovoltaic panel more firmly on the flexible support, steel strands can also be arranged in the longitudinal direction to form a wire network. It is advisable to cover 3 strands per photovoltaic panel in the longitudinal direction. In the construction process, the transverse steel strands should be fixed first, and then the longitudinal steel strands should be overlapped according to the photovoltaic panel selection. The two ends of the flexible transverse support adopt a double foundation scheme: steel column foundations are connected to the steel strands to mainly provide reaction force. Since the steel strands are fixed on bolts, steel plates are used to connect the bolts and the steel column foundations. Two inclined cable foundations are added to bear the horizontal force generated by the steel strands. The inclined cable foundations can be concrete gravity type, and the bottom structure is also circular. The number of steel column foundations should be consistent with the number of fixed endpoints, and steel supports should be fixed between them.

[0117] Step 7: Install multiple photovoltaic panels 5 on the steel strand 6. The photovoltaic charging piles for new energy vehicles are arranged at the foot of the slope, with a height of 2-3m. The spacing can be set according to actual needs. The main function of the photovoltaic charging piles for new energy vehicles is to use the electrical energy converted by the photovoltaic system for vehicle charging, so as to reduce energy consumption and reduce carbon emissions.

[0118] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A photovoltaic roadbed shading power supply structure, characterized in that, include: Road surface (4); Frozen soil roadbed slope (1) is set on the side of the road surface (4); A support unit is provided on the frozen soil roadbed slope (1). Multiple support units are provided, each of which includes multiple support parts, which are spaced apart on the frozen soil roadbed slope (1). Each support part includes: A vertical support member, one end of which is connected to the frozen soil roadbed slope (1), and the other end is used to support the flexible transverse support part. The vertical support member is a steel column. The flexible transverse support is disposed on the support and is used to support the photovoltaic panel (5). One support unit and the photovoltaic panel (5) disposed on the flexible transverse support form a power generation unit. The photovoltaic panel (5) is parallel to the outer surface of the frozen soil roadbed slope (1). The flexible transverse support includes: A connector (8) is disposed on the vertical support member; A connecting plate (9) is disposed on the connecting member (8); A connecting rod (10) is connected to the connecting plate (9) and passes through the middle of the connecting plate (9); Steel strands (6) are threaded through the side of the photovoltaic panel (5) to connect the photovoltaic panel (5), and the ends of the steel strands (6) are wound around the connecting rod (10) to support the photovoltaic panel (5). Multiple photovoltaic panels (5) and steel strands (6) are provided. The charging system (2) is located on one side of the road surface (4) and is electrically connected to the photovoltaic panel (5).

2. The photovoltaic roadbed shading power supply structure according to claim 1, characterized in that, The flexible lateral support also includes: An inclined steel bracket (7) is connected to the connector (8); A transverse steel bracket (15) is connected at both ends to the upper surface of the inclined steel bracket (7), wherein the transverse steel bracket (15) is used to support the steel strand (6).

3. The photovoltaic roadbed shading power supply structure according to claim 1 or 2, characterized in that, Also includes: The reinforcement part is used to connect with the connector (8) and the frozen soil roadbed slope (1).

4. The photovoltaic roadbed shading power supply structure according to claim 3, characterized in that, The reinforcing part includes: The first reinforcement component is disposed on one side of the vertical support component and is used to connect the connector (8) and the frozen soil roadbed slope (1); The second reinforcement component is located on the other side of the vertical support member and is used to connect the connector (8) and the frozen soil roadbed slope (1).

5. The photovoltaic roadbed shading power supply structure according to claim 4, characterized in that, The first reinforcement component includes: The first fixed seat (13) is set on the frozen soil roadbed slope (1) and located on one side of the vertical support member; The first cable (11) is connected at one end to the first fixed seat (13) and at the other end to one end of the connector (8).

6. The photovoltaic roadbed shading power supply structure according to claim 5, characterized in that, The second reinforcement includes: The second fixing seat (14) is set on the frozen soil roadbed slope (1) and located on the other side of the vertical support; The second cable (12) is connected at one end to the second fixed seat (14) and at the other end to the other end of the connector (8).

7. The photovoltaic roadbed shading power supply structure according to claim 6, characterized in that, The photovoltaic panels (5) on each power generation unit have a horizontal spacing D≥0.5m and a vertical spacing L≥0.3m, wherein the overlap gap d between two photovoltaic panels (5) on the power generation units is ≤0.1m.

8. A construction method for a photovoltaic roadbed shading power supply structure as described in claim 7, characterized in that, The construction method includes the following steps: Step 1: Construct the frozen soil roadbed slope (1) and road surface (4), and form a certain angle between the frozen soil roadbed slope (1) and the road surface (4); Step 2: Install vertical support components on the frozen soil roadbed slope (1), and then pour the first fixing seat (13) and the second fixing seat (14); Step 3: Install the connector (8) on the top of the vertical support and weld the connecting plate (9) on the connector (8). Connect the two ends of the first cable (11) to the connector (8) and the first fixed seat (13) respectively. Connect the two ends of the second cable (12) to the connector (8) and the second fixed seat (14) respectively. Step 4: Install the connecting rod (10) on the connecting plate (9) and install the inclined steel bracket (7) together with the connecting piece (8); Step 5: Install the steel strand (6), and wrap and fix both ends of the steel strand (6) together with the connecting rod (10); Step 7: Install multiple photovoltaic panels (5) on the steel strand (6).

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