2725 results about "Photovoltaics" patented technology

The invention discloses an optical storage and charging integrated micro-grid energy management system, which relates to the related technical field of micro-grids and comprises an electric energy collection layer, a digital twinborn layer, a collaborative optimization layer, an application execution layer, a photovoltaic power generation unit, an energy storage unit, a charging load unit and a distributed measurement and control terminal. The invention further discloses an energy management method of the photovoltaic, storage and charging integrated micro-grid. The energy management method comprises the steps of data acquisition, digital twin modeling, multi-target strategy generation and optimization, strategy evaluation and screening, strategy issuing and execution and closed-loop feedback and dynamic correction. According to the invention, through short-term prediction of a digital twinborn layer and real-time generation of a charging and discharging strategy by a collaborative optimization layer, fluctuating renewable energy sources are preferentially consumed, the light abandoning rate is reduced, energy storage charging is automatically triggered in an illumination peak period, and power overflow is avoided; based on the simulation result of the digital twinborn model, the power distribution of energy storage and load is dynamically adjusted, so that the photovoltaic utilization rate is improved, and the dependence on a traditional power grid is reduced.

The invention discloses a power distribution network intelligent scheduling method and system based on data enhancement and topology awareness dynamic partitioning. The method comprises the steps of performing data enhancement by using an improved Wasserstein generative adversarial network model based on photovoltaic historical feature data; constructing a dynamic partition evaluation index system, and realizing self-adaptive partition of the power distribution network topology based on an improved genetic algorithm; and constructing a mixed attention mechanism and fusing the mixed attention mechanism into a graph convolutional network for solving optimal scheduling of the power distribution network, realizing partition autonomous optimization through local attention, coordinating power interaction among regions through global attention, and outputting an optimal scheduling scheme meeting network constraints. According to the method, dynamic partitioning and optimal scheduling are combined, historical data limitation is broken through by improving the generative adversarial network, an intelligent model with topology perception capability is constructed, the problem of model adaptation in scale difference and meteorological diversity scenes is solved, and the consumption capability of a power distribution network on high-permeability distributed photovoltaic power is remarkably improved.

The invention discloses a solar cell and a manufacturing method thereof, and a photovoltaic module, and relates to the field of photovoltaic technology. The solar cell includes: a semiconductor substrate having a first surface including a first region and a second region adjacent to a first cut side; the second region comprises a step structure, an included angle is formed between the side wall of the step structure and the thickness direction of the semiconductor substrate, the first region is provided with a first pyramid structure, and the bottom wall of the step structure is provided with a first texture structure or a second pyramid structure; the first doping layer is arranged on the first region, and the height of the bottom wall of the step structure is lower than that of the first doping layer; the first passivation layer is arranged on one side, deviating from the semiconductor substrate, of the first doping layer and is arranged on the second region; the second passivation layer is arranged on the edge, close to the second area, of the first area, part of the second area and the first cutting side face. The passivation effect near the cutting side face is improved, carrier recombination is reduced, and the photoelectric conversion efficiency is improved.

The invention discloses a back contact battery, a manufacturing method thereof and a photovoltaic module, relates to the technical field of photovoltaics, and aims to reduce the hot spot risk of the back contact battery. A back contact cell includes a semiconductor substrate, a first doped semiconductor layer, a second doped semiconductor layer, and a transparent conductive layer. The thickness of the first doped semiconductor layer is greater than that of the second doped semiconductor layer. The transparent conductive layer is internally provided with an insulating groove, so that the part, electrically connected with the first doped semiconductor layer, of the transparent conductive layer is physically insulated from the part, corresponding to the second area, of the transparent conductive layer. A reverse electric leakage part included in the second doped semiconductor layer is electrically connected with the first doped semiconductor layer, and the reverse electric leakage part is covered with a transparent conductive layer extending from the second area. The first doped semiconductor layer includes a corner region. The corner region is from a sidewall root of the first doped semiconductor layer to an edge of the first doped semiconductor layer near the sidewall. The reverse electric leakage part is located in the corresponding range of the corner area of the first doped semiconductor layer.

The invention discloses an optimal scheduling method for grid connection of a power distribution network and a distributed power supply, and particularly relates to the technical field of optimal scheduling, which comprises the following steps of: determining employment performance information during grid connection of the distributed photovoltaic power supply according to the difference between real-time and historical solar photovoltaic output models; based on charge state data of an energy storage system connected with the distributed photovoltaic power supply, determining energy storage performance information during grid connection of the distributed photovoltaic power supply, determining a grid connection strategy of the distributed photovoltaic power supply, and determining a grid connection strategy of the distributed photovoltaic power supply based on consideration of a node system topology connection relation of the power distribution network and related data of nodes and branches; possible risks existing in distributed photovoltaic power grid-connected nodes in the power distribution network are simulated, grid-connected risk information of the power distribution network is determined, the matching degree of output power and required power of the distributed photovoltaic power is considered, grid-connected load matching information of the power distribution network is determined, and the overall grid-connected performance of the power distribution network is quantified. According to the invention, stable operation of the power distribution network can be ensured.

The invention discloses a building group optimization scheduling method and system based on carbon emission responsibility of a high new energy permeability region, and the method comprises the steps: motivating a user side to carry out self-discipline adjustment through a dynamic carbon emission responsibility factor (Cr), constructing a multi-objective optimization model covering daily economy, carbon emission and user comfort, and solving through employing an improved particle swarm algorithm. The method specifically comprises the following steps: establishing an optical storage direct-flexible system topology model containing photovoltaic, energy storage and flexible loads; the dynamic Cr is calculated based on the responsibility allocation concept, and the principles of consistency, balance and the like are followed; a multi-time-scale optimization strategy is designed, and a scheduling instruction is adjusted in real time in combination with day-ahead prediction and intra-day rolling optimization; and the electric vehicle is used as energy storage equipment to participate in energy bidirectional interaction, so that the new energy consumption capability is improved. According to the invention, the daily carbon emission of the building group is reduced by more than 10%, the power grid voltage fluctuation is less than or equal to 5%, the user comfort is guaranteed, the power supply reliability and the energy utilization efficiency are improved, and technical support is provided for the low-carbon intelligent building group.

The invention discloses a distributed photovoltaic and energy storage cooperative power distribution network voltage fluctuation suppression method and system, and relates to the technical field of voltage fluctuation suppression, and the method comprises the following steps: building an inter-node disturbance propagation accessibility matrix based on the real-time operation data of a power distribution network, and recognizing a voltage disturbance path set; constructing a disturbance irreversible structure chart based on the voltage disturbance path set, and identifying a one-way amplification chain; according to historical disturbance data of a unidirectional amplification chain source node, calculating a disturbance excitation probability and generating a disturbance active propagation domain; constructing an energy storage intervention buffer area in the disturbance active propagation domain; in the energy storage intervention buffer area, the reverse blocking capability of energy storage is evaluated by simulating disturbance propagation, and a collaborative strategy activation condition is generated. Through disturbance path simulation evaluation, energy storage redundancy configuration and power consumption are reduced, and the suppression efficiency and adaptability of the system are improved.

The present application discloses a back contact battery and a manufacturing method therefor, relates to the technical field of photovoltaics, and reduces the carrier recombination rate on one side of a first surface in a back contact battery. The back contact battery comprises: a semiconductor substrate, a first doped semiconductor layer, and a second doped semiconductor layer. In a direction from a second surface to a first surface, a surface of a second region is lower than a surface of a first region, forming a recess structure. Along the arrangement direction of the first region and the second region, a side face of the recess structure is provided with a first sub-region and a second sub-region which are continuously distributed, and the second sub-region is close to the first region. The surface of the first sub-region is inclined relative to the surface of the first region, and the cross-sectional area of a part of the first sub-region of the recess structure gradually increases in the direction away from the first surface. The surface of the second sub-region is a plane. The first doped semiconductor layer is located on at least part of the first region. The second doped semiconductor layer is located on the second region, and extends to above a part of the first region.

The embodiment of the invention discloses a power distribution network operation optimization method and device, equipment and a storage medium, and the method comprises the steps: constructing a multi-period second-order cone optimal power flow model of a power distribution network, and solving to obtain a multi-period operation optimal solution of the power distribution network; converting the optimization problem of the second-order cone optimal power flow model into a Markov decision process to obtain a Markov decision model; determining a target state corresponding to the optimal solution of multi-period operation of the power distribution network, and constructing a pre-training data set based on the optimal solution and the corresponding target state; and pre-training the decision-making agent by using the pre-training data set, training the pre-trained decision-making agent by using an algorithm in reinforcement learning based on the Markov decision-making model, and outputting an optimal power distribution network multi-period operation strategy. The distributed photovoltaic bearing capacity can be effectively improved, the overall optimization efficiency is improved, and the problem of poor dynamic scene adaptation is effectively solved.

The invention relates to the technical field of power system management, and discloses a method and a system for determining distributed photovoltaic consumption capability of a power distribution network. The method comprises the steps of collecting multi-dimensional power grid data, extracting characteristics of photovoltaic output fluctuation and the like, generating a fused power grid characteristic graph, constructing a consumption capacity knowledge base, and determining the maximum photovoltaic installation capacity and the minimum photovoltaic installation capacity through a dynamic adjustment algorithm based on the two. Carrying out multi-scale decomposition on load time sequence data, and processing the data by adopting an edge weight distribution algorithm and the like; optimizing by using an improved particle swarm algorithm; detecting meteorological abnormity and dynamically re-evaluating the photovoltaic capacity; and constructing the compliance of the knowledge graph verification scheme. The system comprises a data acquisition module, a feature extraction module and the like. According to the method, various factors are comprehensively considered, the absorption capacity can be accurately determined, the photovoltaic installation capacity and the power grid stability can be balanced, the operation safety and efficiency of the power grid are improved, and effective support is provided for planning and operation of distributed photovoltaic in the power distribution network.

The invention relates to the technical field of intelligent management of carbon emission of low-carbon engineering, and discloses a typical low-carbon engineering carbon reduction investment intensity measuring and calculating system, which acquires operation data of low-carbon engineering such as offshore photovoltaic engineering through multi-sensor redundancy, ensures credible storage of the data by utilizing a block chain technology, and predicts environment and market factors by adopting a deep learning model. The system power is dynamically distributed based on a multi-objective optimization algorithm, the carbon reduction investment intensity is automatically calculated in combination with the investment cost and the carbon emission reduction amount, and visual presentation and intelligent early warning are achieved through the digital twinborn technology. According to the method, the technical problems that the existing low-carbon engineering carbon reduction benefit evaluation is inaccurate and the investment income is difficult to quantify are solved, and the scientificity and the accuracy of low-carbon engineering investment decision making are improved.

The invention relates to a high-thermal-conductivity epoxy resin conductive adhesive containing a composite conductive filler and a preparation method of the high-thermal-conductivity epoxy resin conductive adhesive. The high-thermal-conductivity epoxy resin conductive adhesive containing the composite conductive filler comprises 6-16% of graphene oxide modified epoxy resin, 0.6-3% of a curing agent, 0-1% of a curing accelerator, 2-7% of epoxidized soybean oil modified single-layer / multi-layer carbon nanotubes, 3-7% of carbon fibers, 3-7% of nano silver powder, 40-70% of micron silver powder, 5.0-15.0% of a surface treating agent, 0.3-2.7% of a coupling agent, 0.5-1.5% of a dispersing agent, 0.1-0.3% of an antioxidant and 0.1-0.3% of a lubricant. 0.5% and the balance of a solvent. The graphene oxide modified epoxy resin and the epoxidized soybean oil modified single-layer / multi-layer carbon nanotubes are utilized to improve the dispersion stability of the filler, the modified single-layer / multi-layer carbon nanotubes are adopted as a short-range conductive additive, the carbon fibers are adopted as a long-range conductive additive, and the graphene oxide modified epoxy resin and the epoxidized soybean oil modified single-layer / multi-layer carbon nanotubes and the carbon fibers cooperate to improve the conductivity. The conductive adhesive disclosed by the invention is high in heat conductivity, low in volume resistivity and high in tensile strength and bending strength, and has a wide application prospect in the fields of automotive electronics, wind power photovoltaics, LEDs (Light Emitting Diode), LCDs (Liquid Crystal Display) and the like.

The invention relates to a light sensation automatic alignment control method and system based on a solar photovoltaic panel, and relates to the technical field of the solar photovoltaic panel, and the method comprises the steps: collecting the installation position and the current time of the solar photovoltaic panel; responding to the installation position and the current time to obtain a sun irradiation position; collecting surrounding image information of the solar photovoltaic panel; identifying a shielding object from the surrounding image information; responding to the sun irradiation position and the shielding object to obtain a shielding shadow; obtaining a deviation distance based on the shielding shadow and the installation position; responding to the sun irradiation position and the deviation distance to obtain a change angle; and controlling an alignment device preset on the solar photovoltaic panel to operate according to the change angle and the deviation distance. The solar photovoltaic panel has the effect of improving the power generation efficiency of the solar photovoltaic panel.

The invention discloses an unmanned aerial vehicle routing inspection area path planning method, system and device based on mountain photovoltaic and a medium, and belongs to the technical field of photovoltaic power station routing inspection. The geographical environment and layout information of a photovoltaic power station area are obtained, and a photovoltaic area routing inspection route map is generated through AI three-dimensional modeling; constructing an inspection task based on the route map; according to the position of the hangar and the position of the inspection area, generating an optimized inspection path by using a path planning algorithm; one-key start and stop operation is realized through a vehicle-mounted unmanned aerial vehicle hangar, unmanned aerial vehicle autonomous inspection is executed, and visible light image data and infrared thermal imaging data are acquired; and performing defect identification and positioning on the monitoring data through a dual-light fusion automatic identification algorithm to generate a defect detection report. The problems that the mountain photovoltaic power station is low in inspection efficiency, the path is not optimized and the identification accuracy is low are solved, the inspection efficiency and accuracy are remarkably improved, the labor cost and the safety risk are reduced, and a powerful tool is provided for fine management and fault prevention of the photovoltaic power station.

The invention relates to the technical field of immersion liquid cooling control, in particular to an immersion liquid cooling data control method and system combining photovoltaic and low-temperature waste heat power generation, and the method comprises the steps: transmitting low-temperature waste heat generated by the operation of a server to a liquid cooling circulation system, capturing solar radiation energy through a synchronous photovoltaic module, forming basic energy input, and transmitting the basic energy input to a server; generating a symbiotic energy substrate; the symbiotic energy substrate drives dual-path conversion, and photovoltaic electric energy is directly supplied to a cooling system pump set and a control unit to maintain liquid cooling circulation; afterheat pushes an expansion unit to generate power through organic working medium gasification, so that energy consumption of a cooling system is supplemented, and an energy flow self-driving system is formed; operation parameters of the energy flow self-driven system are input into the control core, and a three-state strategy is dynamically executed based on the load state and photovoltaic output. The system comprises a liquid cooling cabinet, a CDU control unit, a PLC, a solar panel, a photovoltaic cell, an illumination intensity sensor, a waste heat recovery device, a mode switcher and the like. According to the invention, system operation mode switching time delay is eliminated.

The invention relates to the technical field of quartz sand purification, in particular to a high-purity quartz sand purification method and equipment. 2, a magnetic separation stage; 3, an acid leaching stage; 4, an ultrasonic-assisted cleaning stage; 5, a high-temperature chlorination treatment stage; according to the quartz sand purification method, various impurities such as magnetic impurities, non-magnetic metal impurities and silicate impurities in the quartz sand can be deeply removed through the synergistic effect of multiple steps such as pretreatment, magnetic separation, acid leaching, ultrasonic-assisted cleaning and high-temperature chlorination treatment, the purity of the quartz sand reaches 99.999% or above, the strict requirements of high-end fields such as semiconductors and photovoltaics are met, and the method is suitable for industrial production. The purification steps are closely linked to form a modular purification process, and meanwhile, advanced technologies such as ultrasonic-assisted cleaning and high-temperature chlorination treatment are adopted, so that the impurity removal efficiency is remarkably improved, the purification time is shortened, and the energy consumption and the use amount of chemical reagents are reduced by optimizing the process and equipment.

The invention belongs to the field of resource regeneration, and particularly relates to a method for separating and recycling copper, indium, gallium and selenium from a waste solar thin film battery. According to the method, the waste solar thin film cells are subjected to oxidizing roasting, deep eutectic leaching and extraction and reverse extraction, and high-quality conversion and purification of all valuable elements in the waste solar thin film cells to oxides of the valuable elements are achieved. According to the method, the process route is simple, high-selectivity extraction of indium is achieved through the synergistic effect of the deep eutectic solvent and P204, and meanwhile effective recovery of valuable elements such as copper and selenium is achieved. The recovered and prepared oxide can be widely applied to strategic emerging industries such as semiconductors, photovoltaics, aerospace, military and the like.

This invention relates to a roller blind system. The roller blind system comprising of a roller blind, the roller blind comprising of a photovoltaic film configured to, in-use, face towards an external face of a building envelope, and an energy storage system receivable of power generated from the photovoltaic film. A motor is connectable via a drive system for winding of the roller blind, the roller blind to be wound to an advanced or retracted position, and a controller is configured to operate at least the motor for windingly advancing or retracting the roller blind to a desired extension position.

The invention provides an epoxy resin packaging bonding material with high bonding stability and a preparation method thereof. The packaging bonding material is prepared from the following raw material components: 8 to 18 percent of graphene oxide modified epoxy resin, 0.8 to 4.0 percent of a curing agent, 0 to 1 percent of a curing accelerator, 0.4 to 2.0 percent of a silane coupling agent, 2 to 7 percent of nano carbon black, 2 to 7 percent of carbon fiber, 40 to 60 percent of flaky silver powder, 4 to 8 percent of spherical silver powder, 4.4 to 13.6 percent of a surface treating agent, 4 to 6 percent of a reactive diluent, 0.5 to 1.5 percent of a toughening agent, 0.5 to 1.5 percent of a dispersing agent, 0.1 to 0.5 percent of a lubricating agent and the balance of a non-reactive diluent. Graphene oxide is utilized to modify epoxy resin, the dispersion stability of the filler is improved, modified carbon black is adopted as a short-range conductive additive, carbon fibers are adopted as a long-range conductive additive, the modified carbon black and the carbon fibers synergistically improve the conductivity, and the reinforcing effect is achieved. The packaging bonding material disclosed by the invention has the characteristics of low volume resistivity, high tensile strength and bending strength, high bonding stability and the like, and has wide application prospects in the fields of automotive electronics, wind power photovoltaics, LEDs (Light Emitting Diode), LCDs (Liquid Crystal Display) and the like.

The invention provides a solar laminated cell and a preparation method thereof, and a photovoltaic module, and relates to the field of photovoltaic technology, the solar laminated cell comprises a bottom cell and a top cell which are laminated along a first direction, and a composite layer is arranged between the bottom cell and the top cell. The top cell comprises a first transmission layer, a perovskite layer, a second transmission layer, a transparent conducting layer and a first electrode which are arranged in the first direction, the surface, facing the transparent conducting layer, of the perovskite layer is provided with a first suede structure, the first suede structure comprises a plurality of protruding parts, the height of the protruding parts in the first direction is D1, and the height of the second transmission layer is D1; the thickness of the perovskite layer along the first direction is D2, D1 and D2 meet the condition that D1 / D2 is greater than or equal to 0.1 and less than or equal to 0.3, the first suede structure is arranged on the perovskite layer, so that the solar laminated cell can absorb larger incident light, meanwhile, the contact area of the perovskite layer and the second transmission layer is increased, and the short-circuit current and the filling factor of the solar laminated cell are improved.

This application provides a crystal growth method and crystalline silicon, relating to the field of solar photovoltaic technology. The method comprises: performing a leak test on a single crystal furnace under a first furnace pressure; adding a dopant to the single crystal furnace under a second furnace pressure; wherein the second furnace pressure is greater than the first furnace pressure; and performing a crystal pulling process after adding the dopant. This application can reduce axial concentration distribution differences of doping elements in doped single crystal silicon, improve axial resistivity uniformity of the single crystal silicon, and enhance production efficiency.

The invention discloses a photovoltaic panel cleaning device and a using method, belongs to the technical field of solar photovoltaic panels, and aims to solve the problem that the maintenance workload is large due to the fact that a photovoltaic panel is sprayed through multiple nozzles in the prior art. The device comprises a plate body, and a movable frame arranged in the width direction of the plate body is arranged on the plate body; the driving device comprises a transverse rotating shaft, the rotating shaft is rotationally connected to the moving frame and driven by a motor, and a moving assembly on the rotating shaft can drive the moving frame to move in the length direction of the plate body; the water outlet device comprises a water tank arranged on the movable frame, the water tank is connected with a spraying head through a water pipe, and the spraying head is rotationally connected with a fixing plate on the water tank through a vertical connecting shaft; the linkage device is connected with the rotating shaft and the connecting shaft and can drive the connecting shaft to rotate back and forth when the rotating shaft rotates. Through the linkage device, the spraying head rotates back and forth while moving along with the moving frame, comprehensive cleaning can be achieved without a large number of spraying heads, and the maintenance workload is reduced.

The invention discloses an adjustable support frame for solar photovoltaic power generation construction, and belongs to the technical field of solar photovoltaic power generation. The photovoltaic panel connecting assembly comprises a photovoltaic panel assembly and an installation connecting assembly. A buffer spring is damped; and a correction protection mechanism. Through the combined design of the sliding frame and the transparent glass, direct damage of an outdoor severe environment to the surface of the photovoltaic panel can be avoided, illumination is not shielded, and normal power generation of the photovoltaic panel is guaranteed; various connection modes (detachable, sliding and rotating) of the sliding frame are suitable for different use scenes, and installation, cleaning and maintenance are convenient; according to the correction protection mechanism, through linkage of a volute spiral spring and a limiting assembly, when faults such as breakage of a connecting rod occur, a clamping correction plate can be automatically driven to fix a lifting sleeve, the position is locked through a lifting limiting rod, the photovoltaic panel is prevented from being toppled and damaged, meanwhile, the angle can be temporarily corrected to maintain the basic power generation function, and losses caused by sudden faults are reduced.

An embodiment of the present disclosure relates to the field of photovoltaics, and provides a solar cell and a manufacturing method thereof. The manufacturing method includes the steps of: providing a substrate having a first surface and a second surface facing each other; performing a doping process on at least the first surface to form a doped layer having a first doping element; performing a first laser process on a portion of the doped layer to form an activated portion and leaving the remaining doped layer as a doped portion; performing a first etching process on the first surface, using the remaining doped layer as a dead layer, to remove the activated portion and form a first textured surface; forming a doped polysilicon layer and a silicate glass layer having a second doping element at least on a side of the substrate away from the doped portion; performing a second laser process on at least a portion of the silicate glass layer to form a sparse portion; and performing a second etching process on at least the second surface, using the remaining silicate glass layer as a protective layer, to remove the sparse portion and the doped polysilicon layer facing the sparse portion and form a second textured surface. The first laser process and the second laser process use different laser types, thereby simplifying at least the manufacturing process.

The invention relates to the technical field of polyolefin cable materials, in particular to a photovoltaic weather-resistant anti-cracking low-smoke halogen-free flame-retardant polyolefin cable material and a preparation method thereof.The photovoltaic weather-resistant anti-cracking low-smoke halogen-free flame-retardant polyolefin cable material is prepared from, by weight, 90-150 parts of polyolefin resin, 1-3 parts of antioxidant, 2-5 parts of ultraviolet light absorber, 30-70 parts of composite flame retardant, 10-25 parts of carbon black and 3-5 parts of cross-linking agent; the composite flame retardant comprises a core material, a first shell material and a second shell material, the core material comprises a halloysite nanotube adsorbed with a flame retardant, the first shell material comprises epoxy resin, and the second shell material comprises maleic anhydride grafted polyethylene. According to the polyolefin cable material provided by the invention, the purpose of efficient flame retardance can be achieved by adding the halloysite nanotubes and the flame retardant system, the interfacial compatibility between the flame retardant and the matrix resin can be improved by adding the maleic anhydride grafted polyethylene, and the flame retardance of the polyolefin cable material can be improved by combining the added halloysite nanotubes and epoxy resin. The purpose of improving weather resistance, stress resistance and crack resistance of matrix resin is achieved.

The invention belongs to the field of solar photovoltaics, and provides a CCLFR concentrating solar photovoltaic system and power generation equipment. The CCLFR concentrating solar photovoltaic system comprises a CCLFR concentrator, a supporting structure and PV assemblies which are arranged from bottom to top, wherein the PV assemblies are symmetrical left and right; the CCLFR condenser is of an axisymmetric structure and is a condensing mirror field formed by alternately arranging a plurality of plane mirrors; each plane mirror is used for reflecting incident light to the surface of the corresponding PV assembly; wherein the layout of each plane mirror is related to the width of the battery, the placement height of the photovoltaic battery, the inclination angle of the photovoltaic battery, the inclination angle of the mirror surface, the X-axis coordinate value of the mirror surface end point, the included angle between the reflection light of the mirror surface end point and the X axis, the width of the mirror surface, the width of the mirror field and the transverse distance between two adjacent mirror surfaces.

The invention discloses an unmanned aerial vehicle routing inspection abnormal target detection method and device based on deep learning, and relates to the technical field of unmanned aerial vehicle routing inspection, and the method comprises the steps: obtaining routing inspection data collected by an unmanned aerial vehicle in a photovoltaic routing inspection region according to a routing inspection route, and obtaining environment feature data and photovoltaic feature data through separation according to the routing inspection data, updating a photovoltaic environment model based on the environment characteristic data and the photovoltaic characteristic data, determining an abnormal influence factor of a current inspection task according to the photovoltaic environment model, and inputting the photovoltaic characteristic data and the abnormal influence factor into the photovoltaic inspection model to obtain an abnormal photovoltaic characteristic of a photovoltaic panel, and determining an abnormal target according to the abnormal photovoltaic characteristics, and outputting abnormal information of the abnormal target. Through the above mode, the relation between the environment change and the photovoltaic is used for judging the working condition of the photovoltaic, and the accuracy of determining the abnormal target in photovoltaic inspection by the unmanned aerial vehicle is improved.

The invention discloses a photovoltaics light-transfer coating liquid, which comprises diphenyl anthracene and derivatives thereof, SiO2 silica sol and a solvent, the low-temperature light conversion coating liquid is coated on the glass substrate, the hydrophobic layer is continuously coated on the glass substrate, and the hydrophobic matrix resin is utilized to prevent the component from being eroded by water when the component is used outdoors, so that on one hand, the light conversion substance can be protected from being eroded or decomposed by water, and on the other hand, the glass surface is endowed with a self-cleaning function.

The invention discloses a solar photovoltaic power generation and energy storage integrated communication machine room and an energy management and multi-mode refrigeration control method thereof, and belongs to the field of solar photovoltaic power generation green low-carbon communication machine rooms. The communication machine room takes an optical storage all-in-one machine and a unified direct-current bus as a core, photovoltaic power is connected to the direct-current bus through DC / DC, stored energy is connected to the direct-current bus through bidirectional DC / DC, commercial power is connected to the direct-current bus through AC / DC, a bus voltage stabilizing module is configured, and photovoltaic power supply priority, residual power charging and gap energy complementation are achieved. The energy management method comprises the steps of collecting power and a charge state to generate a state quantity, distributing the power according to priorities and issuing a control instruction. According to the refrigeration control method, the refrigeration mode or the mixed mode of the heat pipe and the compressor is switched according to the outdoor temperature threshold value and the refrigeration requirement, the three-way valve, the compressor and the fan are cooperatively controlled, and hysteretic and minimum retention time constraints are adopted to restrain frequent switching. According to the scheme, the renewable energy proportion and power supply continuity are improved, refrigeration energy consumption is reduced, and temperature control of the machine room is kept stable.

A floating solar photovoltaic system and a method for cooling a back surface of a photovoltaic panel are described. The floating solar photovoltaic system includes a rectangular float having a divided top platform and four interconnected walls, and a cross-shaped support configured to fit between the walls and holding four pontoons within openings formed thereby. An anchoring system maintains positional stability using concrete blocks interconnected by plastic-coated stainless-steel wires. A bi-facial solar photovoltaic panel is supported by the cross-shaped support, upon triangular braces, to generate electrical power from solar radiation. A waterproof control panel cabinet is also supported with the cross-shaped support. The floating solar photovoltaic system implements environmental monitoring through temperature and irradiance sensors, with data collection and wireless transmission capabilities. An integrated power management system enables both energy storage and transmission through a maximum power point tracking converter.