289results about How to "Improve power generation efficiency" patented technology

The invention provides a multifunctional cycle power generation system and method by a gravity lever. The system comprises a supporting rack and a balance weight arranged on the supporting rack and slidably matched with the supporting rack, wherein engines are arranged on one side or two sides of the balance weight; the input shaft of each engine is connected to a transmission shaft; two or more single-directional clutches are fixedly connected to the middle of the transmission shaft; the locking directions of the single-directional clutches are same, gears are fixed to the peripheries of thesingle-directional clutches, and a rack matched with each gear to drive the transmission shaft to rotate is arranged next to each single-directional clutch; at least one pair of racks is arranged on the upper part and the lower part, separately, the racks and the balance weight which reciprocates are in driving movement and the balance weight is arranged on the supporting rack to swing through a lifting mechanism in a reciprocating manner. As the balance weight which swings in the reciprocating manner pulls the racks to drive the transmission shaft to rotate in the single direction, multiple engines can be driven synchronously to generate electricity synchronously, and the power needed by a supporting rack lifting device is alleviated greatly by means of a swing mode like to a lever, so that the energy sources are saved and the power generation efficiency is improved greatly.

The invention relates to the field of service life prolonging control, and discloses a reinforcement learning-based self-adaptive service life prolonging control method for a wind turbine generator, which is used for providing a reliable technical means for prolonging the service life of the wind turbine generator. Comprising the steps of collecting a unit operation state and key component health parameters, and generating multi-dimensional state information; establishing a damage evolution model, predicting the residual life and generating a health degree index; designing a multi-objective optimization strategy, and solving to generate a cooperative control instruction; after the instruction is executed, the model and the strategy are dynamically updated based on unit state feedback, and a closed-loop control system is formed. The service life of the wind turbine generator is effectively prolonged.

The invention provides an air-cooled reactor control method. The temperature of the galvanic pile is monitored, the water content in the galvanic pile is tested by using the internal resistance tester, the voltage change condition of the galvanic pile is further combined, and the rotating speed and duty ratio of the fan are comprehensively analyzed and controlled, so that the purposes of saving energy and meeting temperature control are achieved, the supply of cathode air gas can be met, and the service life of the galvanic pile is prolonged. And water content removal is further controlled, so that the water content of the membrane is ensured, and stable and normal operation of the galvanic pile is ensured. Furthermore, by comprehensively analyzing the data, measuring the actual operation condition of the galvanic pile and the change of the operation condition, adjusting the rotating speed of the fan and controlling the operation power of the galvanic pile, the dynamic adjustment of different operation conditions is achieved, the stable operation of the galvanic pile is ensured, the auxiliary consumption of the fan is further reduced, and the service life of the fan is prolonged. And the power generation efficiency of the stack system is improved.

The application discloses a wind turbine load rapid evaluation method for wind farm collaborative regulation, and relates to the technical field of wind turbine safety regulation. The specific implementation scheme is as follows: standard pulse instructions are applied to the wind turbine to extract vibration characteristic parameters and load oscillation initial amplitude; based on the rate of the candidate regulation instruction and the environmental wind speed, a transient excitation intensity function is set and effective excitation equivalent is calculated; according to the ratio of the effective excitation equivalent and the reference excitation equivalent, the relative impact intensity and the load oscillation amplitude are determined; the envelope function is constructed by combining the vibration characteristic parameters of the wind turbine, and the earliest safety execution time required for attenuation to the safety threshold is solved; the executability of the regulation instruction is determined by comparing with the maximum waiting time set by the rated blade bending moment load, and the load evaluation is completed; the collaborative controller can dynamically and accurately arrange the instruction sequence, and the overall safety of the wind turbine is improved.

The utility model provides a dynamic string assembling device for a photovoltaic module of a photovoltaic cell, and the device comprises a master controller which is electrically connected with a combiner box; the plurality of sub-controllers are electrically connected with the master controller, each sub-controller is at least electrically connected with the photovoltaic modules on the two photovoltaic group strings, and the plurality of sub-controllers are arranged in series; the sub-controller at least comprises a voltage detection assembly, a switching circuit and a microcontroller, the voltage detection assembly is electrically connected with the photovoltaic assembly, the switching circuit is electrically connected with the microcontroller, and the voltage detection assembly is electrically connected with the microcontroller. The dynamic stringing device for the photovoltaic module of the photovoltaic cell can effectively solve the problem of shading caused by a fixed stringing mode of an existing photovoltaic power station and string voltage deviation caused by the problems of module aging and the like, dynamic stringing of the photovoltaic module is achieved, and the power generation efficiency and reliability of a photovoltaic system are improved.

An electrochromic structure with self-powered operation comprises: a photoelectric element having a first glass substrate, a solar power generation structure, and a second glass substrate; a reflective film structure having a glass substrate, an auxiliary layer, and a reflective layer, wherein the reflective film structure is bonded to the photoelectric element with a first resin; and an electrochromic element having a first transparent conductive glass layer, a first electrochromic layer, an electrolyte layer, a second electrochromic layer, and a second transparent conductive glass layer, wherein the electrochromic element is disposed on the reflective film structure and stacked with a second resin to form the electrochromic structure, and the electrochromic element is electrically connected to the photoelectric element. Therefore, the electrochromic structure can be self-powered, improves power generation efficiency, reduces the use of substrate glass, and lowers production costs.

The application discloses a geothermal energy adjustable power generation system based on carbon dioxide working medium, which comprises a power generation well, a temperature and pressure adjusting device connected through a pipeline, a gas-liquid heat exchange device connected with the temperature and pressure adjusting device at one end and connected with a steam superheating device at the other end, a heat supply device and a turbine arranged on the steam superheating device, a power generation device connected with the turbine, the power generation device connected with the gas-liquid heat exchange device through a pressure adjusting device, a plunger pump connected with a recharging well at one end and connected with the gas-liquid heat exchange device through a refrigeration device at the other end. The system can further heat the carbon dioxide working medium after being converted into steam, thereby improving the temperature and pressure of the steam and the power generation efficiency of the turbine. Moreover, the output of the heat supply device is adjusted, the rotating speed of the turbine and the output power of the power generation device are adjusted, the adjustability of the power generation capacity is realized, and the defect of the vacancy of the technology in China is solved.

The embodiment of the application discloses an inverter and a photovoltaic power generation system, wherein the inverter can be applied to a photovoltaic scene, a vehicle-mounted scene and the like. The inverter comprises a shell, a device group and an infrared temperature measurement component. The device group and the infrared temperature measurement component are arranged in the shell, wherein the infrared temperature measurement component is used for temperature monitoring of the device group. The infrared temperature measurement component is a non-contact temperature measurement component, has a wide measurement range, can simultaneously perform temperature detection on multiple devices, can greatly improve the comprehensiveness of temperature detection, and can reduce the situation that some devices are missed in monitoring, for example, a bus capacitor, a conductive copper bar and the like.

A thermoelectric power generation device with a furnace includes a furnace head disposed in the middle of an upper bracket. The upper bracket includes support legs connected to a base ring. A heat-conducting structure is disposed beside the furnace head. The top of the heat-conducting structure is connected to the upper bracket, and the bottom of the heat-conducting structure extends downward and connects to a power generation component located below the furnace head. The power generation component includes a heat-absorbing plate, a heat-dissipating structure, and one or more semiconductor chips. One side of the heat-absorbing plate is tightly fitted to the heat-conducting structure, the other side of the heat-absorbing plate is tightly fitted to one side of the semiconductor chip, and the other side of the semiconductor chip is tightly fitted to the heat-dissipating structure. The heat-conducting structure includes a bracket, which includes a heat-conducting ring and heat-conducting columns surrounding the outside of the furnace head and close to the furnace head. The heat-conducting ring and the base ring are connected as a single unit by a first screw. This invention features high power generation efficiency.

A wind turbine blade made of basalt carbon fiber composite variable density material combination, including at least one blade unit assembled along the length direction of the blade, the density gradient increases from the blade tip to the blade root through the gradient distribution of material density and / or the gradient distribution of hollow structure, and adjacent blade units are detachably connected through non-threaded connection structure. The modular design of the blade solves the problem of land transportation of oversized blades, and the non-threaded connection (hand disassembly) improves the efficiency of on-site installation and eliminates the risk of thread loosening. Lightweight blade tip reduces starting torque, facilitates handling and assembly, and improves wind speed and power generation efficiency.

This invention provides a solar-powered full-spectrum frequency-division thermo-electric combined-drive air conditioning system and its control method, belonging to the field of solar heat pumps. It addresses the problems of existing solar-powered jet-compression combined refrigeration systems, which cannot effectively utilize all wavelengths of solar energy, suffer from intermittent instability during power supply, and exhibit low cooling efficiency due to excessively high compression ratios under high temperature difference conditions. During conventional cooling, the system allows selection of single-jet cooling, single-compression cooling, jet-compression combined cooling, or dual-jet-compression combined cooling based on daytime or nighttime conditions and cooling requirements, achieving stable all-weather air conditioning while saving energy. In addition to the conventional cooling mode, a dual-jet-compression cooling mode can be operated to achieve high temperature difference cooling while maintaining a constant compression ratio. It fully utilizes solar thermo-electricity for self-generation and consumption, enabling switching between jet and compression air conditioning modes to ensure all-weather air conditioning needs while achieving energy conservation and emission reduction.

The utility model relates to the technical field of tractor power assemblies, in particular to an efficient tractor CVT power assembly. Comprising an engine, a generator, a driving motor and a gearbox, the output end of the engine is in transmission connection with a driving shaft, a generator rotor is coaxially and fixedly connected with an input shaft, the end, close to the driving shaft, of the input shaft is in acceleration transmission connection with the driving shaft through a first planetary gear set, and the end, away from the driving shaft, of the input shaft is in transmission connection with a PTO shaft; an output shaft is arranged on the driving motor, and a transmission shaft in transmission fit with the output shaft is arranged on the gearbox. Through the structure, the driving shaft and the generator input shaft are in accelerated transmission through the first planetary gear set, the mode that the driving shaft and the generator input shaft are directly, coaxially and fixedly connected is eliminated, and compared with a transmission power assembly, under the condition that the rotating speed of the driving shaft is the same, the rotating speed of the input shaft in the device is higher; in other words, the power generation efficiency of the generator is higher, and power output by the engine driving shaft is fully utilized.

The present application relates to the fields of gene therapy and molecular biology. More specifically, the present invention relates to a method for producing a modified adeno-associated virus (AAV) capsid and to a modified AAV capsid produced by said method, as well as to an isolated nucleic acid encoding said modified capsid and a vector based on recombinant adeno-associated virus for delivering a heterologous nucleic acid sequence to a subject, which includes said modified capsid.

The utility model provides a rotary adjustable solar panel device which comprises a base used for supporting the whole device, a planetary gear assembly is rotatably installed in the center of the base, a rotating column structure is installed on the planetary gear assembly, and a solar panel is installed on the top of the rotating column structure through a photovoltaic panel support mechanism. A plurality of sets of telescopic supporting legs are installed at the bottom end of the photovoltaic panel support mechanism, the telescopic supporting legs located on the same side are fixedly connected through transverse columns, universal wheel sets are fixedly installed at the bottom ends of the telescopic supporting legs, and the universal wheel sets are supported at the top end of the base in a rolling mode. The device can be well applied to photovoltaic engineering in remote areas, and in the specific using process, direction adjustment can be carried out according to the illumination position, angle adjustment can be carried out according to illumination, light energy is utilized to the maximum degree, and the power generation efficiency is improved.

This application belongs to the technical field of cooling equipment, and particularly relates to a device for improving the power generation efficiency of a waste heat generator set by cooling. The device includes a condenser, an inlet water pipe at the condenser's inlet, a cooling pipe on the inlet water pipe, at least one heat exchange component on the cooling pipe, and a ventilation cooling system or a liquid cooling system on the outside of the cooling pipe. The ventilation cooling system or liquid cooling system works in conjunction with the cooling pipe to lower the temperature inside the cooling pipe. This application, by installing a cooling pipe on the inlet water pipe and dissipating heat from the cooling pipe, lowers the temperature of the circulating water flowing through the cooling pipe, thereby increasing the vacuum degree of the condenser and thus improving the power generation efficiency and output of the waste heat generator set.

The invention discloses a photovoltaic-radiation refrigeration integrated glass curtain wall sunshade component, and relates to the technical field of photovoltaic building energy conservation, and the photovoltaic-radiation refrigeration integrated glass curtain wall sunshade component comprises a building wall surface, glass, an outer frame, a stand column, a sliding rail, an execution mechanism and a sunshade unit; the building wall surface is of a square structure and serves as a room enclosing wall and a positioning foundation; the glass is fixed on a peripheral building wall surface; the outer frame is fixed at the top end of the glass; the two stand columns are fixed to the two sides of the outer frame respectively, and a sliding rail is fixed in each stand column. The sunshade unit is arranged between the two sliding rails through an executing mechanism and comprises photovoltaic shutters, the sunshade area and angle are adjusted through the photovoltaic shutters, the radiation refrigeration function is implemented, and therefore the multiple functions of sunshade, power generation and heat dissipation are achieved, and dynamic balance of target indoor illumination and high power generation efficiency is continuously maintained. The technical effects of collaborative optimization of photovoltaic and sunshade functions, improvement of the heat dissipation effect, improvement of the regulation and control flexibility, meeting of the lighting requirement, maximization of the power generation efficiency and improvement of the energy-saving effect can be achieved at the same time.

This invention discloses an economically viable intelligent photovoltaic system, comprising: a system design module for designing and optimizing the photovoltaic system; an equipment and data traceability module for real-time monitoring and data collection, forming an information network based on the correlation of the collected data; an inspection and scheduling module for automatically planning and scheduling inspection tasks based on real-time monitoring and collected data; a fault early warning module for analyzing equipment anomalies based on real-time monitoring and collected data and providing early warnings for such anomalies; and a fault self-healing module for rapidly repairing faults detected by the fault early warning module. This achieves an intelligent inspection, early warning, and self-healing mechanism, reducing costs and improving economic efficiency.

The application discloses a photovoltaic power generation system and relates to the photovoltaic power generation field.The device comprises a plurality of photovoltaic component module units and a plurality of fixed counterweight blocks; wherein the photovoltaic component module unit comprises a wedge-shaped groove and a connecting frame.The photovoltaic component is fixed to the notch position at the bottom of the wedge-shaped groove, the photovoltaic component module units are fixedly connected through the connecting frames, the photovoltaic component arrangement is formed, a fixed counterweight block is arranged between two adjacent photovoltaic component module units, and the photovoltaic component arrangement is pressed above the lower platform through the fixed counterweight block.The structure of the device simplifies the photovoltaic system component, reduces the installation workload, and improves the power generation efficiency.

The utility model relates to the technical field of solar cell module cleaning, and particularly discloses a solar cell module convenient for rainwater cleaning, which comprises a solar cell module body, a cleaning mechanism is arranged above the solar cell module body, the cleaning mechanism comprises a moving plate, a scraper is arranged at the bottom of the moving plate, and the scraper is arranged above the moving plate. Fixing shafts are arranged on the two sides of the moving plate, the fixing shaft located on the left side is fixedly connected with the outer side wall of the moving plate, the fixing shaft located on the right side is rotationally connected with the outer side wall of the moving plate, and rotating rings are arranged on the outer side walls of the two fixing shafts; the rotating ring located on the left side is movably connected to the outer wall of the fixed shaft located on the left side in a sleeving mode, the effect of conveniently cleaning dust and rainwater on the surface of the solar cell module body is achieved, the service life of the solar cell module is prolonged, the power generation efficiency is improved, and the device is simple in structure, convenient to operate and low in manufacturing cost.

The utility model relates to wind power generation technical field discloses wind power generation device, including support subassembly, wind wheel subassembly and power generation subassembly, wind wheel subassembly includes main shaft and impeller, and the main shaft fixed mounting is in support subassembly, and the impeller rotatablely installs on the main shaft, power generation subassembly includes first power generation unit and second power generation unit, and the stator of first power generation unit and second power generation unit all fixed mounting is in main shaft, and the outer rotor of first power generation unit and second power generation unit all are connected with the impeller fixedly, the utility model under the same wind force condition, first power generation unit and second power generation unit can work simultaneously, and the mechanical energy of impeller capture is more efficient, more fully converts into electric energy, effectively increases the overall power generation, improves the wind energy utilization efficiency and power generation efficiency, solves when the outside wind speed is at the low level, and the overall power generation of generator is insufficient.

The application provides a fan clearance distance monitoring method and system based on multi-beam radar correlation detection. The system comprises a three-beam laser radar acquisition module, a data preprocessing module, a consistency verification module, an environment recognition and data compensation module, and a clearance value calculation and output module. The method comprises the following steps: S1, extracting echo intensity and slant range data of each beam; S2, performing time sequence filtering processing on the collected beam data and eliminating instantaneous jump points deviating from the mean value center; S3, performing multi-beam time correlation verification; S4, performing multi-beam numerical correlation verification; S5, calculating the visibility influence factor to determine the visibility environment; S6, fusing the effective data of the verification, using the remaining effective beam data for completion, and outputting the final fan clearance distance monitoring value. The application is applied to the technical field of wind power generation safety monitoring.

The invention provides an intelligent generator control method and device based on a dynamic load and electronic equipment, and belongs to the field of power grid fluctuation suppression, the method is applied to an energy management unit in a gas power generation system, and the gas power generation system further comprises a gas generator set, an energy storage converter, a super capacitor and a CT mutual inductor. The method comprises the following steps: counting power change times and a power change value of a load within a preset time length based on electrical parameters of a power grid side load; selecting a working mode as a constant power factor mode, a constant reactive power mode or an automatic adjustment mode based on the power change frequency and the power change value; and based on the operation state parameters of the super capacitor, controlling the total output power of the gas generator set in the three adjusting modes. According to the invention, stable power supply of the load can be maintained through adjustment of the super capacitor and the energy storage converter, the adjustment frequency of the gas generator set is reduced, and the power generation efficiency of the gas generator set is improved.

The present application belongs to the technical field of ocean wave power generation, and particularly relates to a quick detachable and mounted OWC pneumatic structure, which comprises a bottom-opened rectangular air chamber, the side wall of the air chamber is provided with an embedded sliding groove matched with the wharf track, the top is provided with a valve structure, the valve structure realizes three working modes of complete closure, bidirectional conduction and only downward conduction through the cooperative action of the fixed valve piece, the moving valve piece stator and the moving valve piece flap, the air chamber can realize self-adaptive adjustment of the tidal level and quick disassembly preparation through controlling the valve mode and matching the sliding groove sliding along the track combined with the locking mechanism. The present application solves the problems of inconvenient disassembly and inability to adapt to the change of tidal level of the existing mounted OWC device, has the advantages of flexible deployment, convenient maintenance and stable energy efficiency, and is suitable for the green transformation of the existing port.

The utility model provides a kind of integrated solar thin film battery's photoelectric curtain wall frame, including stand, crossbeam;The stand and crossbeam are mutually staggered and are connected, form the frame for installing photoelectric curtain wall;Its characterized in that;The outer wall surface of the crossbeam is equipped with solar thin film battery;The inside of the crossbeam is provided with the electricity storage module electrically connected with solar thin film battery, and heat dissipation device;The utility model is integrated by using solar thin film battery as photovoltaic module and the frame of photoelectric curtain wall, realize the purpose of beautiful, practical, in addition, sealing groove and mounting groove are set up in the crossbeam outer wall surface side wall, form stepped structure, solar thin film battery is firmly installed in mounting groove, and is sealed and protected with glass cement and transparent cover plate.

This invention discloses a dual-buoy wave-current energy combined power generation device, comprising a connecting rod and two identical float power generation components. Each float power generation component includes a float upper shell, a support rod, a push rod, a ratchet transmission assembly, a speed-increasing assembly, and a generator. The two float components are hinged together by the connecting rod and oscillate relative to each other with the waves, using a lever principle to drive the push rod in a reciprocating motion. The ratchet transmission assembly converts the reciprocating motion into unidirectional rotational output, which is then accelerated by two stages of speed-increasing components to drive the generator, achieving dual-buoy coupled power generation. The lower shell of the float is conical to reduce seawater resistance and contains springs and vibration energy storage blocks to recover vibrational energy and improve wave energy utilization. This device uses a helical impeller to absorb ocean current energy; the blades are subjected to force perpendicular to the helical shaft, achieving unidirectional self-starting rotation. This invention features a simple structure, high transmission efficiency, and stable output. Through wave-current energy combined power generation and the dual-buoy coupling design, it significantly improves power generation efficiency and device stability.

The invention relates to a renewable energy local consumption method based on an isolated micro-grid, and the method comprises the steps: constructing a layered distributed cooperative control architecture for the micro-grid, enabling a local control layer to collect the operation environment parameters and performance parameters of power generation equipment and energy storage equipment in real time, and enabling a central control layer to carry out the multi-time-scale energy optimization configuration according to the real-time equipment parameters; the real-time power of the micro-grid is balanced by responding to instantaneous changes of renewable energy sources and loads in an ultra-short-term optimization manner; an energy distribution plan of the next day is formulated through short-term optimization; power generation equipment and energy storage configuration are optimized in a medium-and-long term manner, and then global optimization decision making is performed to obtain an energy scheduling plan among the regions; and the regional coordination layer performs cooperative control on equipment in the region based on the energy scheduling instruction. Compared with the prior art, the method has the advantages that the special environment and technical problems of high-cold and high-altitude areas are solved, the local consumption efficiency of renewable energy in the isolated micro-grid is remarkably improved, the wind curtailment rate and the light curtailment rate are reduced, and the stability and the reliability of the micro-grid system are enhanced.

The utility model relates to early warning equipment technical field, and disclose an emergency lighting system based on wisdom building, including prop, the circumference of prop is fixedly connected with disc, the top of disc is fixedly connected with the ring of teeth, the circumference of prop rotatably connected with the board of turning, the bottom of board of turning is fixedly connected with the round angle board, the inner wall of round angle board rotatably connected with output shaft, the circumference of output shaft is fixedly connected with gear, the top of board of turning is fixedly connected with detector, the front of board of turning is fixedly connected with photovoltaic board, the present application can carry out the detection of larger range between building, when detecting the fire, can give the signal to the detection center and carry out the early warning and open the lighting lamp simultaneously and carry out the emergency lighting.

The invention discloses a cooling device for efficient heat dissipation of a gearbox, and relates to the technical field of transmission devices. The radiator fan is rotatably mounted in the radiator main frame and is rigidly connected with the fan motor; one side of the cooling fan is provided with a cooling pipeline which is connected with a temperature control valve, and the other side of the cooling fan is provided with a cooling plate; an air inlet of the radiator is provided with an anti-flocculation net, and an air outlet of the radiator is provided with an air duct which is communicated with the cabin; the heat dissipation plates are of an integral aluminum magnesium alloy structure. The cooling pipeline is a double-layer high-elasticity fiber and steel wire winding rubber pipe; the temperature control valve is of a spring pressure type; the anti-flocculation net comprises an aluminum alloy frame and a diamond net; the surface of the radiator is coated with a graphene-containing coating; the ventilating duct and the exhaust hood are made of military silica gel coating glass fiber cloth; the cooling fan and the like form a penetrating type heat exchange core body; a reinforcing lifting lug is arranged on the main frame; the cooling capacity is guaranteed, the operation stability of the gearbox is improved, and the service life is prolonged.

The application provides an intelligent pollution cleaning method based on multi-modal deep learning, real-time monitoring of a pollution accumulation area is performed, and a real-time picture of a trash rack area is transmitted, a pollution detection data set is generated, and a pollution recognition algorithm based on deep learning is trained, the pollution recognition algorithm is used to recognize pollution in the real-time picture of the trash rack area and mark position information of the pollution, a multi-modal deep learning model is established to determine whether a pollution cleaning device is started, and factors such as an area of the pollution accumulation area, a water level difference of an inlet, weather conditions and rainfall are comprehensively considered, when an output result of the model reaches a preset value, it is determined that the pollution cleaning device starting requirement is met, through intelligent identification, automatic operation and informationized collaboration of the whole process of the hydropower station pollution cleaning system, the application improves the pollution cleaning efficiency of the trash rack of the hydropower station inlet and the reliability of the pollution cleaning device, and promotes the intelligent leap of the pollution cleaning system from passive response to active sensing.

The invention provides photovoltaic energy storage equipment which comprises a base, a telescopic frame arranged in the base and a main board connected with the telescopic frame. The auxiliary plate is arranged on the surface of the main plate and is unfolded along with rotation of the main plate, a fourth connecting rod is arranged on the surface of the auxiliary plate and the surface of the main plate, a connecting rod is connected to the surface of the fourth connecting rod, one end of the fourth connecting rod is connected with the telescopic frame, and when the base drives the telescopic frame to move, the angle of the main plate is changed, and the auxiliary plate is driven to be unfolded relative to the main plate. The dynamic adjustment of the photovoltaic acquisition area is realized, and when the illumination is sufficient, the auxiliary plate can be automatically unfolded, so that the total light receiving area is greatly increased; in severe weather or transportation, the auxiliary plate is folded on the surface of the main plate, the windward area and space occupation are effectively reduced, the balance between the power generation efficiency and the structural safety is realized, a back-mounted connecting rod scheme is adopted, all stress connecting rods and motion fulcrums are hidden on the backlight surface of the photovoltaic panel, the absolute cleanness of the light receiving surface is ensured, and the service life of the photovoltaic panel is prolonged. And the power generation efficiency of the photovoltaic panel is improved.