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64 results about "Solar angle" patented technology

Ultra-short-term prediction system and method based on image analysis

The invention relates to the technical field of photovoltaic power prediction, in particular to an ultra-short-term prediction system and method based on image analysis, and the system comprises an all-sky imaging data processing module, a cloud layer dynamic feature calculation module, a solar irradiance change prediction module, a photovoltaic power generation power calculation module and a prediction model optimization training module. According to the method, the cloud layer thickness, transparency, movement direction and coverage rate change are calculated, the cloud layer dynamic characteristic analysis precision is enhanced, and the radiation scattering coefficient is calculated in combination with the direct solar light shielding ratio, the cloud layer characteristics and the solar angle, so that the irradiance calculation is more accurate, the illumination change rate is analyzed, and the short-term irradiance trend is dynamically adjusted; the total power is calculated and the shielding influence is adjusted in combination with component arrangement, so that the power prediction is more practical, the input data is normalized, the time sequence sample is enhanced, the dynamic adjustment of the model parameters is optimized, and the adaptive capacity and the prediction stability are improved.
Owner:GUIZHOU QIANYUAN POWER CO LTD +1

Full-field refined DNI prediction method

The present invention discloses a full-field refined DNI prediction method. At least two total-sky imagers are used to determine the actual position of a cloud, and then a shadow position is determined on the basis of a solar angle; and the thickness of the cloud is determined by means of the imaging brightness of the cloud, and then a DNI value is predicted. The method specifically comprises the following steps: performing cloud identification, cloud image speed calculation, cloud actual-position calculation, cloud / shadow actual-speed calculation, shadow position prediction, cloud thickness extraction, DNI mapping, and DNI prediction. In the method, at least two total-sky imagers or pinhole cameras are used to perform a DNI prediction operation, and a DNI change at each specific position in a heliostat field can be accurately predicted, such that the power generation efficiency is improved.
Owner:SEPCOIII ELECTRIC POWER CONSTR CO LTD

Photovoltaic area vegetation coverage dynamic monitoring method based on artificial intelligence

The invention discloses a photovoltaic area vegetation coverage dynamic monitoring method based on artificial intelligence, and relates to the technical field of dynamic monitoring. The method comprises the following steps: integrating geometric information of a photovoltaic module, on-site geography and height parameters of a bracket, and constructing a three-dimensional model; a sun angle is obtained through a sun path algorithm, a shadow boundary is calculated in combination with a three-dimensional model, and a day-level dynamic shading map is aggregated; preprocessing a remote sensing image of the power station, and obtaining a corrected remote sensing image sequence through shading map labeling and spectrum correction; outputting the coverage through a vegetation coverage model by using the environmental data and the corrected image; and building a prediction model based on the coverage degree, inputting future environment forecast, and predicting a change trend to early warn vegetation anomaly. Through the day-level dynamic shading map, the problem of monitoring errors caused by shadow interference of the photovoltaic module when a traditional remote sensing image analysis method is applied to a photovoltaic area is solved.
Owner:XIAN UNIV OF SCI & TECH

Driving sunscreen cooling control method based on sun illumination tracking

The invention discloses a driving sunscreen cooling control method based on sun illumination tracking, and the main design concept of the method is that the recognition precision of the relation between dynamic light and a dynamic vehicle is improved through sun vector space modeling. Specifically, accurate measurement and calculation of the sun angle is matched with dynamic response of a vehicle system to realize a sunlight tracking type sunscreen mode, and the method mainly comprises the following steps: acquiring data such as longitude and latitude, date time, advancing direction and the like of a current vehicle, calculating an irradiation angle of sunlight irradiated to the vehicle, and combining a real-time measurement value of a light sensor to obtain a sunlight tracking type sunscreen mode. And deciding whether the vehicle enters the sunscreen mode at the current moment. On the basis of real-time tracking of the sun position and by means of intelligent cooperative control of devices such as an electric sun shield curtain, electrochromic glass and air conditioner directional blowing, dynamic and accurate automatic non-inductive sun protection and cooling are achieved, and comfortable driving and riding experience is brought to drivers and passengers.
Owner:ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD

Extremely low orbit mid-inclination angle remote sensing satellite and design method

The invention relates to the technical field of aerospace engineering and remote sensing, in particular to an extremely-low-orbit median-inclination-angle remote sensing satellite and a design method.The satellite runs on a median-inclination-angle orbit, and a spherical crown type windward side and smooth side plate transition structure is adopted to reduce aerodynamic resistance and homogenize heat flow; the detector and the refrigerator are connected with the main heat dissipation surface through a heat conduction structure to form a cold end heat dissipation channel; when a satellite is in a launching state, the solar panel is folded on the Zs side of a satellite body, the satellite is unfolded in the + Ys direction after entering an orbit, an included angle is formed between the normal of the solar panel and the-Zs direction, the SAR antenna is folded on the Ys side of the satellite body, the satellite is unfolded in the-Ys direction after entering the orbit, and the normal of the array plane of the SAR antenna points to the + Zs direction, so that a sunshade and counterweight structure is formed; the positive and negative Xs surfaces are provided with double Hall electric thrusters, the orbit solar angle is calculated through the GNSS and the sun vector, yaw switching is executed, and forward and reverse flight switching is achieved.
Owner:SHANGHAI TAIYI MICRO-SPACE TECHNOLOGY CO LTD

Angle control method and device of photovoltaic panel, electronic equipment and storage medium

The invention provides an angle control method and device of a photovoltaic panel, electronic equipment and a storage medium, and relates to the technical field of photovoltaic power generation of a power distribution network. The method comprises the steps of obtaining a current inclination angle of a photovoltaic panel, real-time meteorological monitoring data of an area where the photovoltaic panel is located and a sun angle; according to the real-time meteorological monitoring data, determining predicted meteorological monitoring data of the region, the predicted meteorological monitoring data including predicted wind speed, predicted cloud cover and predicted illumination intensity; when the predicted wind speed is greater than a set wind speed threshold value, determining a target inclination angle of the photovoltaic panel according to the current inclination angle of the photovoltaic panel, the wind load corresponding to the predicted wind speed and a wind load threshold value; determining a target azimuth angle of the photovoltaic panel according to the predicted cloud amount, the predicted illumination intensity and the sun angle; and controlling the mechanical adjusting mechanism to adjust the inclination angle of the photovoltaic panel to the target inclination angle and adjust the azimuth angle of the photovoltaic panel to the target azimuth angle. The method is used for achieving the effects of improving the angle control precision and guaranteeing the safety of the photovoltaic panel and the photovoltaic power generation efficiency.
Owner:GUANGDONG POWER GRID CO LTD +1

Container type photovoltaic power station

A container type photovoltaic power station provided by the present invention comprises a box body, at least one first door body and a first photovoltaic assembly arranged on the outer wall surface of the first door body, the first door body is arranged on the box body, and a driving assembly used for driving the first door body to turn over, open and close relative to the box body around a horizontal axis is arranged between the first door body and the box body. The driving assembly drives the first door body to open and close and drives the first photovoltaic assembly on the first door body to adjust the inclination angle so as to track the sun in real time. By optimizing the structural design of the container type photovoltaic power station, the structural form of the container type photovoltaic power station is effectively simplified, the production and assembly difficulty of the container type photovoltaic power station is reduced, and cost reduction and efficiency improvement of enterprises are promoted while the photovoltaic modules run at the angle of tracking the sun in real time and the photovoltaic generating capacity is improved.
Owner:ARCTECH SOLAR HOLDING CO LTD

Wind-solar hybrid power generation device and control method thereof

The invention discloses a wind-solar complementary power generation device and a control method, and the device comprises a solar fan blade module which is installed on a device main body, and a photovoltaic power generation layer is arranged on fan blades of the solar fan blade module; the output of the wind speed and wind direction detection module is sampled / filtered and then sent to the central control system; the fan blade control module is used for controlling start and stop of fan blades and adjusting the windward angle / propeller pitch; all the modules are electrically connected with the central control system. The control method comprises the following steps: setting a system default state as a solar power generation mode; calculating the windward angle of the current fan blade and the predicted power of wind power generation based on the wind speed and wind direction data; power outputs of wind power generation and solar power generation are compared, and the system is controlled to be switched to a wind power generation mode or a solar power generation mode. According to the invention, the solar power generation efficiency can be fully maintained at a high level, especially when the sun angle is low or the wind speed is high.
Owner:70MAI CO LTD

An emergency water collection device based on stirling machine

The application discloses a kind of based on stirling machine's emergency water collecting equipment, including condensing unit and water storage unit, and water in water-containing air is condensed to form liquid water droplets by the top condensing unit work, liquid water droplets from the condensing unit drop into bottom water storage unit and realize the collection of pure water.The relatively pure water is efficiently obtained in natural environment by the stirling device, without the fire source and other dangerous factors of distillation, safer and more efficient;The purity is higher than that of filtration and sedimentation;Compared with solar distillation, the device does not need to consider the sun angle, temperature and other conditions, and has wider application conditions and higher efficiency;The temperature of the produced water is low, the taste is better for drinking, and the rotation speed is limited by disassembling the speed limiting device for ice making, preservation or treatment in emergency.
Owner:WEIHAI ZHONGHAI INTELLIGENT TECH CO LTD

Basalt fiber tempered roof photovoltaic support

The utility model provides a basalt fiber tempered roof photovoltaic support. The basalt fiber tempered roof photovoltaic support comprises a supporting frame; and the four first connecting pieces are arranged on the outer side face of the supporting frame in a sleeving mode, and splicing pieces are arranged at the bottoms of the four first connecting pieces. According to the basalt fiber tempered roof photovoltaic support provided by the utility model, through mutual cooperation of the supporting frame, the first connecting piece, the first vertical rod, the second vertical rod, the splicing piece, the clamping assembly, the second connecting piece and other structures, when the basalt fiber tempered roof photovoltaic support is used, photovoltaic panels can be arranged on the two sides of the supporting frame through the clamping assembly; in this way, illumination from two directions can be received at the same time, the illumination receiving efficiency is greatly improved, especially when the sun angle is low, high power generation power can still be kept, meanwhile, the photovoltaic panels are installed on the two sides of the supporting frame so that space can be more flexibly utilized, larger power generation capacity can be achieved on the same installation area, and the power generation efficiency is improved. And the space utilization rate is improved.
Owner:GANSU HAOHANYUNQI INFORMATION TECHNOLOGY CO LTD

Three-load-bearing-cable flexible photovoltaic system for sea island and offshore

The invention relates to the technical field of ocean engineering, and discloses an island and offshore three-bearing-cable flexible photovoltaic system which comprises an upper bearing cable structure, a middle supporting structure, a bottom supporting structure and transverse stabilizing cables. The upper bearing cable structure comprises an upper chord middle bearing cable and upper chord bearing cables arranged in pairs, the photovoltaic module is connected with the upper chord middle bearing cable through a rotating device, the two ends of the rotating device are connected with transmission devices on the upper chord bearing cables at the corresponding ends respectively, and the bearing cables of the upper bearing cable structure are connected with the bottom supporting structure in a tensioning mode; the middle supporting structure is connected with the upper bearing cable structure and the bottom supporting structure; one end of the transverse stabilizing cable is connected with the upper chord bearing cable, and the other end is anchored on the ground. According to the scheme, the double-layer design that the three bearing cables and the middle supporting structure are combined is adopted, and the overall rigidity and wind resistance are improved; the cable structure design in the scheme enables the photovoltaic module to freely rotate within the range of the cable structure design so as to adapt to the change of the sun angle and improve the light energy collection efficiency.
Owner:SHANGHAI ELECTRIC POWER GENERATION EQUIPMENT CO LTD +1

Battery pull-out type solar monitoring system

The invention discloses a battery drawing type solar monitoring system, which comprises a photovoltaic panel assembly, a battery assembly, an angle adjusting mechanism, a support frame, a monitoring adjusting structure and monitoring equipment, and is characterized in that the photovoltaic panel assembly is fixed at the upper end of the angle adjusting mechanism, and the lower end of the angle adjusting mechanism is connected with the upper end of the support frame through a bolt; the lower end of the supporting frame is fixedly connected with the monitoring adjusting structure, and the monitoring device is connected to the monitoring adjusting structure. Through unique bolt hole site design, the photovoltaic panel can flexibly rotate within the range of 0-90 degrees so as to adapt to different sun angles. Meanwhile, the battery component is embedded in the angle adjusting mechanism, so that the battery component is convenient to pull and replace and easy to maintain. The monitoring equipment can be adjusted in 360 degrees in all directions on a horizontal plane and a vertical plane. According to the invention, solar energy can be fully utilized and dead-corner-free monitoring can be realized through the height angle adjusting capability, and a brand new solution is provided for the fields of energy utilization and safety monitoring.
Owner:ANHUI MICROVOLT POWER TECH CO LTD

Rock core orientator for paleomagnetic research

The invention discloses a core orientator for paleomagnetism research, and belongs to the technical field of paleomagnetism core measurement. Comprising a hollow column, a magnetic field shielding assembly, an automatic leveling and inclination measuring assembly, an inclination angle measuring assembly, a sun compass and sun angle measuring assembly, a data acquisition and storage assembly, an automatic ink-jet marking assembly and a matched software system which work cooperatively. All the components are sequentially assembled in a layered mode, and an automatic closed loop of insertion, leveling, measurement, verification, recording, marking and transmission is formed. By adopting the core orientator for the paleomagnetic research, manual operation steps can be greatly reduced, personal errors and magnetic interference are avoided, the measurement precision and data consistency are improved, the core orientation working efficiency is remarkably improved, the measurement result is more reliable, sample correspondence is clear, and later informatization management is convenient to trace.
Owner:NORTHWEST UNIV

Satellite positioning calculator with an inter-satellite optical communication system on an anti-Earth side

Positioning computer for satellite having an inter-satellite optical communication system on an anti-Earth face. Positioning computer for a satellite (10) intended to move in an orbital plane (P), the satellite being intended to comprise: - a casing (32) having an Earth face (34) defining a Z axis of the satellite intended to point towards the Earth (12), - at least one optical system for communicating with another satellite located in the orbital plane, the first optical system being intended to be located on an anti-Earth face (46), and to have an azimuth field of view around the Z axis, the field of view being limited by an occlusion angle due to the casing.The calculator is adapted to obtain a parameter representing a solar angle (β) defined by the Sun (16) with the orbital plane, and to perform the calculation of a parameter representing the yaw angle (ψ) of the satellite using at least the parameter representing the solar angle and a parameter representing the shutter angle. Figure for the abbreviation: Figure 1.
Owner:THALES SA

Two-dimensional tracking control method and system for sun observation load of stationary meteorological satellite

The invention provides a two-dimensional tracking control method and system for a sun observation load of a stationary meteorological satellite. The two-dimensional tracking control method comprises the steps that a satellite service management unit receives the attitude and orbit data of a current information control computer, the measurement data of a sensor and the rotation angle data of a driving mechanism; the east-west solar angle and the south-north solar angle are calculated, and a driving mechanism is driven to complete initial sun capture in the east-west direction and the south-north direction of the optical axis of the EUV imager; when initial sun capture is completed, the sun enters the digital too sensitive field of view; and when the sun enters the field of view of the guide mirror, the data of the guide mirror in the measured data is used as input, and the south-north dimension driving mechanism and the solar array driving mechanism are fed back and controlled in real time, so that two-dimensional coarse alignment and tracking to the sun are realized. The problem of east-west, south-north two-dimensional tracking of the sun observation load is solved, a two-dimensional tracking control method and a control strategy are provided, the sun observation load can accurately point to the sun in real time, and the method can be applied to the research and development process of a stationary meteorological satellite.
Owner:SHANGHAI SATELLITE ENG INST

A core orienter for paleomagnetic research

The application discloses a kind of rock core orienter for paleomagnetic research, belong to paleomagnetic rock core measurement technical field, including the hollow column of collaborative work, magnetic field shielding component, automatic leveling and inclination measurement component, inclination measurement component, sun compass and sun angle measurement component, data acquisition and storage component, automatic ink jet marking component and matching software system;Each component is sequentially layered assembly, forms the automation closed loop of "insertion-leveling-measurement-verification-recording-marking-transmission".The rock core orienter for paleomagnetic research described above is used in the application, can greatly reduce manual operation steps, avoid human error and magnetic interference, improve measurement accuracy and data consistency, realize that core orientation work efficiency is significantly improved, measurement result is more reliable, sample corresponding is clear and post information management is convenient traceability.
Owner:NORTHWEST UNIV

Integrated adjustable photovoltaic support and operation method thereof

The invention belongs to the field of photovoltaic supports, and particularly relates to an integrated adjustable photovoltaic support and an operation method thereof.The integrated adjustable photovoltaic support is arranged on a pile body and comprises a base, a supporting assembly and a photovoltaic support body. The supporting assembly comprises a first supporting rod, a second supporting rod and an umbrella-shaped support, the first supporting rod and the second supporting rod are hinged to the photovoltaic frame body, the umbrella-shaped support is provided with a main umbrella rib and an auxiliary umbrella rib, and a telescopic rod is arranged between the overhanging end of the main umbrella rib and the base and can make the photovoltaic frame body swing in a pitching mode. The base is provided with a shade box, and an electric telescopic rod is arranged in the shade box and can be adjusted along with the sun angle. The photovoltaic frame body is provided with the photovoltaic guide rails for supporting the photovoltaic panel, and installation is convenient. The photovoltaic guide rail is provided with a cleaning mechanism, the cleaning trolley cleans dirt through a roller brush, the walking wheels are prevented from slipping, and the cleaning trolley can move among different guide rails through the rail changing device. And the photovoltaic panels are arranged at equal intervals, so that the cleaning difficulty is reduced. The vertical columns are integrally designed and simplified, the deployment efficiency is improved, the rigidity is increased, tremor is reduced, and automatic adjustment and efficient cleaning are achieved.
Owner:OULIN GRP (HEBEI) CO LTD

Artificial intelligence-based photovoltaic tracking support method

This invention discloses an artificial intelligence-based photovoltaic (PV) tracking bracket method, relating to the field of solar photovoltaic power generation technology. The method includes: collecting multi-dimensional environmental perception data and uploading it to an edge computing node; predicting the irradiance distribution for the next 30 seconds using a convolutional neural network and a long short-term memory network; inputting the prediction results, solar angle, and atmospheric attenuation coefficient into a lightweight fully connected neural network to generate a dual-axis tracking angle command; dynamically correcting the angle using a gradient ascent algorithm in conjunction with PV output power feedback; and performing closed-loop regulation through a low-latency CAN bus-controlled servo drive unit. This invention aims to solve the problems of existing PV tracking systems, such as lag response, large control deviation, reliance on high-cost sensors, and lack of multi-dimensional environmental fusion perception capabilities under complex weather and unsteady illumination conditions. It achieves high-precision, robust real-time tracking with low-density sensor configuration, significantly improving power generation efficiency and system adaptability.
Owner:TIANJIN MINGXUAN NEW ENERGY TECHNOLOGY DEVELOPMENT CO LTD

Fan

ActiveJP1800090SReference mapSunlamp Exposure
This article is a handrail used on balconies of condominiums, houses, etc., and buildings. As shown in the "Reference Diagram of Usage State", by providing louvers, it has a blind function. At the same time, sunlight shines in through the gaps between the louvers according to the angle of the sun, preventing the balcony from getting dark and making it possible to expose laundry, etc. to sunlight.
Owner:MARUTOYO KENSHINE CO LTD

Adjusting structure and photovoltaic support

The invention relates to the technical field of photovoltaic supports, and discloses an adjusting structure which comprises a front plate fixedly connected to the upper ends of two front columns and a rear plate fixedly connected to the upper ends of two rear columns, the side, close to the front plate, of the rear plate is connected with a guide assembly, the upper end of the guide assembly is connected with an inclination mechanism, and the output end of the inclination mechanism is connected with a supporting assembly. The end, close to the inclination mechanism, of the supporting assembly is connected with a storage mechanism, the output end of the storage mechanism is connected with a monitoring mechanism, and the end, away from the inclination mechanism, of the supporting assembly is connected with a rotating assembly. The photovoltaic support comprises the adjusting structure and further comprises two front columns and two rear columns, and the lower ends of the two front columns and the lower ends of the two rear columns are fixedly connected with bases. According to the adjusting structure and the photovoltaic support, the sun angle is monitored in real time through the photosensitive sensor set, the photovoltaic panel is driven to be dynamically adjusted in the horizontal direction and the inclined direction in cooperation with the inclination mechanism and the reversing mechanism, the optimal light receiving angle is kept all the time, and the illumination utilization rate is maximized.
Owner:HEBEI SHANSHUI RUBBER & PLASTIC TECHNOLOGY CO LTD

Optical filter adaptive switching device based on solar intensity

The invention discloses an optical filter adaptive switching device based on sun intensity, which is assembled on a photoelectric sun angle detection device and comprises an optical filter conversion device, an optical filter, a motor and a processor. The photoelectric sun angle detection device comprises a collimator and a four-quadrant sensor arranged at the emergent end of the collimator. And the motor and the optical filter conversion device are arranged at the incident end of the collimator. The optical filter conversion device is of a disc structure with a through hole in the center, a plurality of installation bases are arranged on the outer circumference of the disc at intervals, optical filters are fixed to the installation bases, and the transmittance of the optical filters is different. And the processor judges whether the optical filter needs to be switched based on the illumination intensity measured by the four-quadrant sensor and the transmittance of the currently used optical filter. The optical filter can be adaptively switched according to the current sunlight intensity, the detectable range of the four-quadrant sensor is achieved, the adaptability is high, and the economical efficiency is high.
Owner:CHONGQING JIALING HUAGUANG PHOTOELECTRICITY TECH CO LTD

Movable multi-purpose water treatment device

ActiveCN224548105UWater filterSolar angle
The utility model provides a movable multiple water treatment equipment relates to water treatment equipment technical field to solve the problem that the existing water treatment equipment is not enough energy conservation and environmental protection when using, when using mostly adopts traditional mode drive such as diesel engine, including: the water filter cabinet is set up on the main part, the power supply cabinet is set up on the main part, the fixed part is set on the main part top, the mounting bracket rotation is set on the fixed part, the solar panel is fixedly set up on the mounting bracket. Through the spatial distribution difference of the light intensity sensor perception sunlight intensity, calculate the sun angle, and the signal is passed to the control panel on the main part, and the motor output shaft is controlled through the control panel rotation, and then drive the screw rod rotation, through the drive screw rod and drive the slider to move in the sliding slot, and the slider moves and drives the support piece deflection, thereby causing the mounting bracket to deflect, so that the angle of the solar panel can be adjusted according to the demand, so that the solar panel can better receive the sunlight, energy saving and environmental protection.
Owner:QINGDAO KEYUANMEI COMMERCIAL EQUIP CO LTD

Method for enhancing energy production in bifacial solar panel modules

The invention relates to electric solar trackers moving solar panels and being controlled by a solar tracker controller. Accounting for an estimation of the angle of positioning of the bifacial PV modules on a solar single axis tracker, in which the electrical energy produced is maximized by means of a process that quantifies the variation of irradiation on both the front and rear faces depending on the orientation angle of the module for each solar angle, and then the optimal position for the production of electrical energy is decided of all the solar trackers of the plant. The production of electrical energy can be further optimized by including an albedo modifying arrangement. An arrangement for enhancing energy production in bifacial solar panel modules having a front side and a rear side is also provided herein.
Owner:SOLTEC INNOVATIONS SL

Solar panel control method, electronic equipment, power generation equipment, medium and product

The invention discloses a control method of a solar panel, electronic equipment, power generation equipment, a computer readable storage medium and a computer program product, and the control method comprises the steps: detecting and judging whether a preset light following condition is satisfied at present, and adjusting the orientation angle of the solar panel towards the sun when the preset light following condition is satisfied, the angle difference between the adjusted orientation angle and the sunlight incident angle of the solar panel is within the first preset threshold value. Thus, the angle difference between the adjusted orientation angle and the sunlight incident angle of the solar panel can be within the first preset threshold value, it is ensured that the solar panel can effectively receive solar radiation at different times, and therefore the power generation efficiency of the solar panel is guaranteed; and whether the preset light following condition is met or not is detected and judged before the orientation angle of the solar panel towards the sun is adjusted, so that effective adjustment of the orientation angle of the solar panel towards the sun is realized, and electric energy consumption caused by invalid adjustment or improper adjustment is avoided.
Owner:TP-LINK INT CHENGDU CO LTD

Camera color calibration method and device based on remote sensing radiation reference and storage medium

The invention provides a camera color calibration method and device based on a remote sensing radiation benchmark and a storage medium. The method comprises the steps of obtaining the remote sensing radiation benchmark as a reference image; extracting homonymy points between the to-be-corrected images and the reference image, and homonymy points of overlapping areas between the to-be-corrected images; establishing an error equation containing an imaging nucleus under the condition that the color values of the homonymy points on different images are consistent; wherein the imaging core is constructed based on a sun angle and an observation angle and is used for representing non-uniform illumination distribution in a view field of the camera; based on the error equation containing the imaging kernel, solving a color correction coefficient of each image through a least square principle; and performing pixel-by-pixel correction on each image according to the color correction coefficient and outputting a result image. According to the method, an absolute color calibration and relative color calibration model of a camera with limited calibration capability is established, an imaging kernel related to a solar angle and an observation angle is constructed, and the problem of global or local non-uniformity correction can be solved, so that a color calibration result is effectively improved.
Owner:WUHAN UNIV

Photo-thermal driven double-shaft solar panel tracking device

The invention discloses a photo-thermal driven double-shaft solar panel tracking device, belongs to the technical field of solar energy utilization equipment, and aims to solve the problem that a plate surface and sunlight are difficult to keep vertical or have an optimal receiving angle due to the fact that an existing fixedly mounted solar panel cannot be adjusted in real time along with the change of the position of the sun. A mechanical structure is driven by utilizing the thermal expansion and cold contraction characteristics of inert gas, extra electric power or a complex control system is not needed, the equipment operation cost is reduced, the green and energy-saving concept is met, the solar panel body is always kept perpendicular to sunlight or the optimal receiving angle is kept through real-time adjustment of the azimuth angle and the elevation angle, and the energy-saving effect is achieved. Light energy loss caused by inclined incidence is reduced, the utilization rate of light energy is improved, the adjusting assembly achieves high-precision angle control through multi-stage meshing transmission of a first gear, a second gear, a double-face gear ring and the like, and the sun angle adjusting device adapts to sun angle changes in different seasons and geographic positions.
Owner:国华(赤城)风电有限公司

A photovoltaic string azimuth angle determination method, device and electronic equipment

The application provides a photovoltaic string azimuth angle determination method and device and electronic equipment. The method comprises the following steps: acquiring power generation performance data sequence of a photovoltaic string and solar angles at different time points, wherein the power generation performance data sequence comprises power generation performance data of the photovoltaic string at different time points; determining a maximum data time point corresponding to maximum power generation performance data in the power generation performance data sequence, and establishing a target function according to the solar angles at different time points and the power generation performance data; and determining a string azimuth angle of the photovoltaic string according to the maximum data time point and the target function. The technical scheme of the application reduces the workload and labor cost of determining the photovoltaic string azimuth angle.
Owner:HEFEI SUNGROW RENEWABLE ENERGY SCI & TECH CO LTD

A bearing structure, a flexible photovoltaic tracking bracket and a flexible photovoltaic system

The present invention relates to the technical field of photovoltaic equipment, in particular to a bearing structure, a flexible photovoltaic tracking bracket and a flexible photovoltaic system, which includes a load-bearing cable and a support beam. Both ends of the load-bearing cable are fixedly connected with a rotating mechanism. The rotating mechanism includes symmetrically arranged straight parts, chamfered parts and arc parts. One end of the straight part intersects with the chamfered part, and the arc part is fixedly connected to the other end of the straight part and is bent inward. The load-bearing cable passes through the arc part and is anchored and connected to the arc part. The chamfered part is rotatably connected to the top of the support beam; an end column is fixedly connected to the bottom of the support beam. The load-bearing cables are arranged in parallel on the top of the support beam. Two load-bearing cables are fixed and anchored to the rotating mechanism above the end column as a group. The photovoltaic modules are fixedly connected to the top of the paired load-bearing cables through clamps, realizing the tracking rotation of the photovoltaic modules with respect to the sun angle, improving the power generation efficiency. When the overall photovoltaic system bears a large wind force, by rotating the rotating mechanism to the clockwise extreme position or the counterclockwise extreme position, it can effectively play a better limiting role on the overall photovoltaic system and improve the wind resistance ability.
Owner:JIANGSU EVERSHINE ENERGY TECHNOLOGY CO LTD