170 results about "Photovoltaic generator" patented technology

The invention relates to the technical field of agricultural irrigation, in particular to a configuration optimization method of a collaborative energy supply photovoltaic power generation water-saving irrigation system. According to water demand characteristics of local crops in the growth period, configuration is carried out by taking the minimum water demand of the crops in different growth periods as a target, and a system flow calculation model is constructed by considering change rules of photovoltaic module utilization efficiency, water pump operation efficiency and pipeline efficiency under different irradiation intensities, valve opening degrees and water lifting heights; and determining the optimal water lifting height according to the system overall efficiency and the solar energy utilization rate. The initial investment cost, the operation cost, the maintenance cost and the replacement cost of the water-saving irrigation system are used as constraints, and a system life cycle cost model is established. The optimal configuration parameters of the photovoltaic generator set, the reservoir and the storage battery are determined by adopting a crown porcupine optimization algorithm, so that the whole life cycle cost of the system is minimized, and the lowest water demand of crops is met. The system is suitable for a water-saving irrigation system composed of a photovoltaic generator set, a reservoir and a storage battery.

The invention relates to an island microgrid energy storage optimization configuration method based on load power prediction, and the method comprises the following steps: constructing an energy system model which comprises a wind turbine generator model, a photovoltaic generator set, an energy storage system model and a diesel generator set model; establishing an energy storage optimization configuration model; establishing a load short-term power prediction model and speculating a prediction value; a non-dominated solution elite decision-making mechanism in an NSGA-II algorithm is introduced into a multi-target particle swarm algorithm to serve as a multi-target sorting strategy, and an energy storage optimal configuration scheme is obtained. According to the method, after load prediction is considered, the multi-target hybrid particle swarm optimization algorithm is adopted, optimal parameter selection of the energy storage device can be more efficiently realized, and stable operation of the island microgrid system is realized.

The invention discloses a main and distribution network cooperative load frequency control method based on multi-agent reinforcement learning, and is suitable for power system frequency adjustment. According to the method, a photovoltaic generator and energy storage battery equipment at a distribution network end are controlled through a maximum entropy heterogeneous multi-agent reinforcement learning algorithm, active power is injected into a main power grid through a distribution network access node of the main power grid, and dynamic adjustment of the frequency of the main power grid is achieved. The intelligent agent continuously interacts with the dynamic environment to continuously optimize the control strategy of the intelligent agent so as to achieve the purpose of minimizing the frequency deviation of the system. During actual operation, the intelligent agent makes a decision autonomously according to the system state monitored in real time, cooperative control over the distributed photovoltaic generator and the energy storage battery at the distribution network end is achieved when the main network breaks down, and the stability and reliability of the power grid frequency in the complex environment are guaranteed. The method provided by the invention has good adaptivity and expandability, can effectively deal with challenges such as load change and line fault in a power grid, and improves the adjustment capability of new energy power generation equipment.

The invention discloses a range-extended energy storage system and a control method. The range-extended energy storage system comprises a generator set, a battery pack, an AC / DC charger, a high-voltage box, a DC bus, an AC / DC bidirectional converter, a grid-side AC bus, a load-side AC bus, an energy management system (EMS), a charging pile and a photovoltaic inverter. The EMS comprises a load classification module, an early warning value management module, a load data recording module, an electricity price judgment module, an electricity price recording module, a parameter configuration module and a communication module. The extended-range energy storage control method comprises the steps of judging whether power is cut off or not, executing an off-grid or grid-connected strategy, obtaining an electricity price, executing a corresponding strategy according to a valley time period, a peak time period and a normal time period during grid connection and the like. According to specific conditions of a construction site, electric power generated by a photovoltaic generator and an electric generator can be quickly and conveniently dispatched, range extension is flexibly carried out through the energy storage equipment, dynamic control is achieved, and the site electric power dispatching capacity is improved.

The invention discloses a low-carbon energy system and method for coupling solid waste utilization of a coal-fired power plant. The system comprises a photovoltaic generator set, a wind generating set, an electric arc furnace, a biomass crusher, a biomass particle storage device, a coal-fired boiler system and the like. The method comprises the following steps of: providing electric energy for the electric arc furnace by utilizing redundant generating capacity of a photovoltaic generating set and a wind generating set; the fiber material prepared in the electric arc furnace, coal gangue and pulverized coal ash collected in the flue gas dust remover are jointly used as raw materials of the soil-like ecological restoration material, and preparation is performed in a soil-like preparation machine; energy plants which are resistant to drought and high in water and soil conservation capacity are planted under the photovoltaic generator set; the energy plants enter a biomass particle storage device to be stored after being subjected to the procedures of crushing, shaping and the like; the biomass particles are subjected to blending combustion in a coal-fired boiler system; flue gas generated after combustion of the coal-fired boiler system collects pulverized coal ash in a flue gas dust remover. The utilization rate of the coal-based solid waste is increased, and the application field of the coal-based solid waste is expanded.

Systems and method to minimize conditions that cause sub-synchronous oscillation (SSOs) associated with series compensated transmission grids. The implementations ensures the correct development of methods and systems that can mitigate sub-synchronous oscillation (SSOs) associated with a series compensated transmission grid and enhance the series compensation efficiency. An example implementation is a network-based SSO mitigation technology, and another example implementation is a generator-based SSO mitigation technology. The discovery and example implementations are applicable to series compensated transmission networks with synchronous generators, induction generators, wind turbines, solar photovoltaic generators, charging stations, battery storage systems, high-voltage DC transmission systems, STATCOMs, inverter-based data centers, and other inverter-based resources.

The invention relates to an electrified agricultural implement source storage mobile operation platform which comprises a carrier, and a power supply unit body is arranged on the carrier. The power supply unit body comprises a square frame detachably connected with the carrier, a high-voltage box internally provided with an energy storage module and an inversion module is arranged in the square frame, and a photovoltaic power generation mechanism electrically connected with the energy storage module is arranged outside the square frame. The photovoltaic power generation mechanism comprises a top plate photovoltaic assembly fixedly connected and arranged on the top face of the square frame in a matched mode, and a left door photovoltaic assembly and a right door photovoltaic assembly symmetrically hinged and arranged on the left side face and the right side face of the square frame in a matched mode respectively. An alternating-current power supply module, a direct-current power supply module and a plant protection unmanned aerial vehicle power supply module are arranged on the rear end face of the high-voltage box, and electric vehicle power supply modules and heat dissipation modules are symmetrically arranged on the side faces of the high-voltage box; the front and rear end faces of the square frame are respectively hinged and matched with a cover door. The problems that electrified agricultural implements are insufficient in self-charged electric energy and short in operation time are solved, and the agricultural production efficiency is improved.

The invention discloses a power distribution network photovoltaic bearing capacity optimization method, system and device and a medium, and the method comprises the steps: carrying out the clustering analysis according to photovoltaic output data and load data, and extracting a typical scene set; based on the basic data and the typical scene set of the power distribution network system, constructing a distributed photovoltaic site selection and capacity configuration model; constructing a dynamic response model of the synchronous generator and the photovoltaic generator under a transient condition, and solving the dynamic response model to obtain a key transient safety index; and on the basis of the key transient security index, performing static planning solution and dynamic simulation verification alternately, and performing iterative solution to obtain a distributed photovoltaic optimal site selection and capacity configuration scheme. According to the method, extreme risks caused by photovoltaic randomness are controlled through the conditional value-at-risk indexes, dynamic stability of the system is guaranteed in combination with transient security constraints, a photovoltaic optimal site selection and capacity scheme meeting steady-state and transient dual security is obtained, the photovoltaic bearing capacity of the power distribution network is improved, and safe operation of the system is guaranteed.

The invention discloses a configuration method of a wind-solar-thermal storage coupling system with wind-solar load uncertainty, and the method comprises the steps: obtaining the predicted output power of a fan, the predicted output power of a photovoltaic generator set, and the predicted electric load demand of a user; obtaining the actual output power of the fan, the actual output power of the photovoltaic generator set and the actual electric load demand of the user according to the corresponding deviation; generating a plurality of initial scenes by using a Latin hypercube sampling method based on the actual output power of the fan, the actual output power of the photovoltaic generator set and the actual electric load demand of a user; performing clustering processing on the initial scene by using a k-means clustering method to obtain a reduced typical scene and a probability of the typical scene so as to obtain wind and light output and electric load requirements in the typical scene; and solving the configuration optimization model of the wind-solar-thermal storage coupling system based on wind-solar output and electric load requirements in typical scenes to obtain a capacity configuration result of the system.

The invention relates to the technical field of solar power generation, in particular to a wind power-photo-thermal-photovoltaic integrated energy system. Comprising a wind power generation mechanism, the wind power generation mechanism comprises a tower, and a generator cabin and wind power blades are arranged at the top of the tower; the photo-thermal power generation mechanism comprises a heat collector installed in the middle of the tower barrel, a plurality of reflectors are arranged on the ground around the tower barrel, and the heat collector receives sunlight focused by the reflectors and heats heat conduction fluid. The photovoltaic power generation mechanism comprises a first photovoltaic cell assembly located on the peripheral wall of the tower drum, a second photovoltaic cell assembly located on the back face of the reflecting mirror and a third photovoltaic cell assembly located on the surface of the wind power blade. The reflecting mirror is used for reflecting sunlight to the heat collector or the first photovoltaic battery assembly; the wind power generation mechanism, the photo-thermal power generation mechanism and the photovoltaic power generation mechanism are all connected with the energy management system. Wind power, photo-thermal and photovoltaic are fully combined, the energy utilization efficiency is improved, power fluctuation is reduced, and the stability and adaptability of the system are enhanced.

The invention provides a method and a system for optimizing power closed-loop response time of a wind and light storage system. The method comprises the following steps: collecting multi-source historical operation data of the wind and light storage system within continuous preset duration; carrying out global optimization on key parameters of the echo state network by adopting a sethead whale migration algorithm; based on the collected data, outputting an advanced prediction result of the output of the wind turbine unit, the output of the photovoltaic unit and the change trend of the energy storage SOC in a future time period through the optimized echo state network; taking the advanced prediction result as input, and based on a weighted objective function taking power tracking error minimization and power closed-loop response time minimization as targets, adopting an adaptive snake vulture optimization algorithm to solve the objective function to obtain optimal control parameters of the wind-solar storage system; the optimal control parameters are analyzed into real-time control instructions through the FPGA controller so as to drive the energy storage unit, the wind generating set and the photovoltaic generating set to execute power regulation and control, and collaborative optimization of power closed-loop response time shortening and tracking precision improvement is achieved.

The invention discloses a power distribution network distributed photovoltaic and energy storage combined planning method, which comprises the following steps: constructing power distribution network annual average construction cost, power distribution network annual average operation cost, power distribution network annual carbon emission reduction income, network loss, voltage deviation and voltage stability index objective functions according to the structure and operation condition of a power distribution network; forming constraint conditions of power balance, distributed photovoltaic access capacity, distributed energy storage access capacity, node voltage and line current according to the structure of the power distribution network, photovoltaic generator sets accessed to the power distribution network and the quantity and condition of energy storage; normalizing the six objective functions by adopting a fuzzy theory, and converting the six objective functions into a single objective optimization problem; and solving the access node and the installation capacity of the distributed photovoltaic of the power distribution network and the access node and the installation capacity of the energy storage device, which meet the constraint conditions, by adopting an eddy current search algorithm. According to the method disclosed by the invention, the annual average operation cost of the power grid can be reduced, the annual network loss of the power distribution network is lower, and the planning of the power distribution network is more reasonable.

Various implementations described herein are directed to systems, apparatuses and methods for operating stand-alone power systems. The systems may include power generators (e.g., photovoltaic generators and / or wind turbines), storage devices (e.g., batteries and / or flywheels), power modules (e.g., power converters) and loads. The methods may include various methods for monitoring, determining, controlling and / or predicting system power generation, system power storage and system power consumption.

The invention discloses a coupling system for assisting in absorbing new energy and an operation method thereof, and belongs to the technical field of new energy power generation. The coupling system for assisting in absorbing the new energy comprises a fused salt system, a wind / light generator set and a coal-fired unit, the wind / light generator set and the coal-fired unit are connected with a public power grid, and the fused salt system is in coupling connection with the coal-fired unit through a fused salt heat exchanger; a power supply device connected with the power input end of the fused salt electric heater is arranged at the power output end of the wind / light generator set, by controlling the low-temperature fused salt adjusting valve and the high-temperature fused salt adjusting valve, redundant electric energy of wind and light power generation is used for heating fused salt and storing heat energy, and the heat energy is released at the load peak or when the power generation output of the wind / light generator set is insufficient. Therefore, the flexibility of the coal-fired unit is improved, and efficient and stable operation of a power system is realized. Meanwhile, by means of the heat storage function of the fused salt system, fluctuation of wind and light power generation is relieved, more stable power generation output is achieved, and stability of a power grid is facilitated.

The invention discloses an energy storage device based on top type photovoltaic power generation of a workshop in a science park, and relates to the technical field of photovoltaic energy storage, the energy storage device comprises an energy storage mechanism, a first covering mechanism is arranged right above the energy storage mechanism, and two groups of symmetrically arranged second covering mechanisms are jointly arranged in the energy storage mechanism and at the bottom of the first covering mechanism; stretching mechanisms are arranged at the tops of the two sides of the energy storage mechanism, photovoltaic power generation mechanisms are arranged at the bottoms of the two sides of the energy storage mechanism, and traction pushing mechanisms are jointly arranged in the energy storage mechanism and in the middle of the side face of the energy storage mechanism; and any group of second covering mechanism comprises a winding shaft which is rotationally nested in the base box body through a bearing. A maintenance channel can be formed above the photovoltaic power generation mechanism, intensive installation is facilitated, the power generation amount is guaranteed, meanwhile, the maintenance difficulty is reduced, and in rainy and snowy weather, the problems that the cleaning difficulty is large, the service life of a photovoltaic panel is shortened and the like due to attachment and accumulation of rainwater or accumulated snow can be solved.

The utility model relates to a vehicle-mounted photovoltaic module and a vehicle. The vehicle-mounted photovoltaic module comprises a frame body and a skylight installation opening formed in a vehicle roof, and an installation position is arranged on the inner side wall of the frame body; the photovoltaic power generation mechanism is arranged at the mounting position, the photovoltaic power generation mechanism comprises a photovoltaic power generation panel and a heat insulation plate which are sequentially arranged from top to bottom in the vertical direction, and the heat insulation plate is used for isolating heat generated by power generation of the photovoltaic power generation panel from entering the vehicle; and the heat exchange mechanism is arranged between the photovoltaic power generation panel and the heat insulation plate, and the heat exchange mechanism is used for communicating with an air conditioning system of the vehicle and is configured to be capable of cooling the photovoltaic power generation panel. The heat exchange mechanism is arranged between the photovoltaic power generation panel and the heat insulation plate of the photovoltaic power generation mechanism, and the photovoltaic power generation panel can be cooled through the heat exchange mechanism, so that the photovoltaic power generation panel can be maintained at the working temperature during power generation, and the photovoltaic power generation efficiency is improved.

The invention discloses an electricity market clearing method and device and a nonvolatile storage medium. The method comprises the steps that the initial output power of a generator set, the initial electric energy supply cost of the generator set, the initial load of a user and the initial electric energy demand cost of the user are acquired, and the generator set comprises a non-distributed photovoltaic generator set and a distributed photovoltaic generator set; a market clearing model of the target electric power system is constructed, the market clearing model takes the maximum total income of the target electric power system as the target, and the target electric power system comprises a generator set and a user; and based on the initial output power of the generator set, the initial electric energy supply cost of the generator set, the initial load of the user and the initial electric energy demand cost of the user, solving the market clearing model to obtain a market clearing result of the target power system. The technical problem that an existing power market clearing method is not suitable for a multi-category distributed photovoltaic participation market and distributed photovoltaic marketization scheduling is solved.

The invention relates to the technical field of ecological slope protection, in particular to a carbon fiber reinforced ecological slope protection grid which comprises a carbon fiber assembly network composed of a plurality of annular adjusting assembly mechanisms and a plurality of telescopic connecting mechanisms. The annular adjusting and assembling mechanisms and the telescopic connecting mechanisms are mutually assembled and clamped to form a carbon fiber assembled network, and the top of each telescopic connecting mechanism is fixedly provided with a photovoltaic power generation mechanism. During application of the technical scheme, the annular adjusting and assembling mechanism is matched with the telescopic connecting mechanism, so that the grid structure can be flexibly adjusted to adapt to various side slopes, and the problem of single specification in the prior art is solved; the power module and the cleaning module are driven by wind power to clean the photovoltaic panel, so that low manual efficiency and motor energy consumption are avoided; the rotating module can adjust the orientation of the photovoltaic panel to improve the power generation efficiency, a core component is made of a carbon fiber reinforced material and is durable, adaptation, automatic cleaning and efficient power generation are all considered, and the practical value of ecological slope protection is improved.

The utility model provides a photovoltaic power generation system, which comprises a movable frame, a plurality of movable wheels are arranged at the bottom of the movable frame, a foldable photovoltaic power generation mechanism is arranged on the movable frame, and the photovoltaic power generation mechanism comprises a U-shaped frame, a plurality of movable wheels and a plurality of movable wheels, the two fixed seats are symmetrically arranged on the U-shaped frame; and the rotating rod is rotationally arranged on the fixed seat. The photovoltaic assembly is driven to rotate around the rotating rod, the angle of the photovoltaic panel is adjusted, the photovoltaic panel is made to be vertically downward, at the moment, the first bolt is loosened, the sliding seat is moved to move to one end of the movable frame, then the second bolt is detached to leave the third threaded hole, the U-shaped frame is rotated, the U-shaped frame is placed in a horizontal state, and the photovoltaic panel is fixed to the movable frame. At the moment, the photovoltaic power generation mechanism is folded on the moving frame, so that the size of the photovoltaic power generation system is reduced, and the photovoltaic power generation system is convenient to carry to a proper position for photovoltaic power generation.

The present invention describes a photovoltaic (PV) generator ideally suited for off-grid and remote areas, having a substantially upright structure and comprising a cabinet adapted for grounding on which a plurality of vertically disposed PV panels are mounted. The cabinet accommodates a control circuit for collecting, storing and delivering electrical energy generated by the PV panel. And redundant energy is accumulated in the battery pack and is conveyed as required when the PV panel is insufficient in power supply. The generator is optimized to rated power, ideally for off-grid life (average daily output of 200 Wh / day) and for maintaining home use during seasonal minimum values of solar radiation, and is provided with sufficient PV energy harvesting area to deliver average daily rated power.

The present invention discloses a method and system for joint source-load profiling of a distribution network based on photovoltaic historical data, and relates to the technical field of distribution networks. The method comprises: using historical data of photovoltaic power generation groups as fuzzy soft sets, and using the normalized fuzzy soft sets to predict the power generation forecast for a future set time period; determining an initial model that meets the training end condition as a load prediction model; inputting actual operation data into the load prediction model for processing to obtain the predicted load for the future set time period; using the predicted power generation power and the predicted load to establish a sensitivity matrix in the distribution network, and analyzing the local optimal matching combination of power sources and loads in the distribution network based on the sensitivity matrix; establishing the sensitivity matrix in the distribution network based on the predicted power generation power and load is helpful to analyze the local optimal matching combination of power sources and loads under the operation of the active distribution network, realize the optimized distribution of the flow, and improve the stability and economy of the power system.

The application provides a capacity optimization configuration method and system for voltage quality of a local power distribution system, and belongs to the field of power distribution system optimization; the method comprises the following steps: establishing a mathematical model of a local power distribution system containing output models of a wind driven generator, a photovoltaic generator, a battery and a diesel generator; establishing a capacity optimization configuration model taking the number of power sources in the system as optimization variables, taking minimization of total operation cost of the system as an objective function, and containing voltage quality constraints; iteratively solving the model by using an improved quantum particle swarm algorithm to obtain an optimal capacity configuration scheme; in the iteration process, the improved quantum particle swarm algorithm introduces a Levy flight strategy to randomly disturb and update local attractors of particles when the particles fall into local optimization, so as to jump out of local extreme values; meanwhile, weights are dynamically allocated according to fitness values of the particles, a weighted average optimal position is calculated to guide particle updating, and adaptive balance of global search and local refinement is realized.

The utility model relates to an indoor energy-saving ventilation device for a building, and relates to the technical field of ventilation engineering technologies, the ventilation device comprises an unpowered air cap, the unpowered air cap comprises an air cap supporting pipe and a plurality of arc-shaped blades, the arc-shaped blades are arranged at one end of the air cap supporting pipe, and the arc-shaped blades are sequentially arranged at intervals in the circumferential direction of the air cap supporting pipe; the air cap supporting pipe is coaxially communicated with the ventilation pipe and is rotationally connected with the ventilation pipe; one end of the ventilation pipe communicates with the interior of the building; the axial flow fan is arranged in the ventilation pipe, and the axial flow fan and the air cap supporting pipe are coaxially arranged; the photovoltaic power generation mechanism comprises a power control assembly and a plurality of photovoltaic films, the photovoltaic films correspond to the arc-shaped blades one to one, and the photovoltaic films are attached to the outer sides of the corresponding arc-shaped blades; and the plurality of photovoltaic films and the axial flow fan are electrically connected with the power control assembly. Indoor ventilation and heat dissipation of the building can be achieved, and meanwhile energy consumed for ventilation and heat dissipation is reduced.

The invention discloses a water conservancy ecological wall, and relates to the technical field of ecological walls, the water conservancy ecological wall comprises a wall body, two supporting plates mounted on the side wall of the wall body and a plurality of planting pots mounted on the tops of the two supporting plates, and a plurality of sets of cultivation devices used for cultivating different plant seedlings are arranged between the two supporting plates; the cultivation device comprises a cultivation box installed on the side wall of the wall body, a door plate installed at an opening of the cultivation box and a transparent plate installed in the door plate. An LED lamp, an irrigation mechanism, a seedling raising plate and a heating mechanism are sequentially installed in the cultivation box in the vertical direction. A water supply mechanism used for supplying water to the multiple sets of irrigation mechanisms is installed on the wall body, a plurality of cultivation pots are installed on the seedling raising tray, the top of the cultivation box is communicated with a ventilation pipe, and a valve is installed on the ventilation pipe; a photovoltaic power generation mechanism used for supplying power to electrical parts of the cultivation device is installed on the wall body. According to the planting pot, plants in the planting pot can be replaced conveniently.

The application provides a power distribution network wind-solar-hydro multi-energy complementary regulation method and system based on cloud edge-end cooperation, and the regulation method is applied to a dispatching system including a dispatching center layer, a multi-energy complementary cluster layer and a unit control layer, and specifically comprises the following steps: clustering wind turbine generators and photovoltaic generators respectively to obtain wind power clusters and photovoltaic clusters, and complementarily pairing according to a wind-solar complementary degree to form a wind-solar complementary aggregate, combining a hydrogen energy system to form a multi-energy complementary cluster, constructing an optimal dispatching model in combination with conventional units, operating loads and power distribution network operation constraints, solving to obtain power distribution network dispatching strategies in each dispatching period, formulating and issuing corresponding output plans and operating strategies according to the power distribution network dispatching strategies, and controlling the operation of corresponding wind turbine generators, photovoltaic generators and hydrogen energy system equipment. The application can reduce the complexity of dispatching, inhibit and relieve source side power fluctuation and uncertainty through wind-solar complementation and hydrogen energy system consumption, and guarantee the operating stability of the power distribution network.

The utility model is suitable for the technical field of barrier gates, and provides a parking lot anti-collision intelligent barrier gate which comprises a machine box and a supporting column correspondingly arranged on one side of the machine box. The barrier gate frame is rotationally mounted on the machine case; the two infrared sensors are arranged on the two sides of the machine case respectively; the lamp post is fixedly mounted on one side of the case, and a plurality of LED bulbs are arranged on the lamp post; the driving mechanism is arranged on the case and used for driving a barrier gate frame; and the photovoltaic power generation mechanism is arranged on the case and is used for supplying power to the LED bulbs. The parking lot anti-collision intelligent barrier gate provided by the scheme provides sufficient illumination for the barrier gate area, effectively improves the sight condition at night or in a low-light environment, improves the infrared detection performance, and guarantees the anti-collision effect.

The application discloses a charging pile with a buried heat dissipation structure, which comprises a charging pile, a cooling box, a photovoltaic power generation mechanism and a circulating pump. The cooling box is buried in the ground below the charging pile, and is filled with circulating liquid. The cooling box is provided with a liquid inlet pipe and a liquid outlet pipe extending into the charging pile. The photovoltaic power generation mechanism is arranged on the top of the charging pile. The heat dissipation fan is arranged on the top of the charging pile and is electrically connected with the photovoltaic power generation mechanism. The heat dissipation fan blows air into the charging pile for heat dissipation. The output end of the heat dissipation fan is provided with a blowing fan blade, and the blowing fan blade is provided with a meshing tooth plate at the center. The circulating pump is communicated with the liquid inlet pipe and the liquid outlet pipe, and is used to drive the circulating liquid in the cooling box to flow. The temperature sensing and adjusting mechanism is arranged, which can drive different heat dissipation and cooling units to work according to different temperature intervals in the charging pile.

The application discloses a light storage straight flexible cable with corrosion resistance and a protection structure thereof, and particularly relates to the technical field of light storage straight flexible technology, and comprises a photovoltaic power generation mechanism, wherein the photovoltaic power generation mechanism comprises an annular floating body pipe floating on the water surface, the inner ring of the annular floating body pipe is provided with a high-elasticity film, and the high-elasticity film is uniformly provided with a plurality of photovoltaic panels; the annular floating body pipe is concentrically provided with a mounting ring, the mounting ring is arranged in parallel with the annular floating body pipe, the mounting ring is provided with a protection mechanism, and the protection mechanism comprises a plurality of protection sleeves fixedly mounted on the mounting ring. The protection mechanism is arranged, so that when the high-elasticity film fluctuates up and down with waves, the cable between the photovoltaic panel and the mounting ring is limited to swing in a small range in the protection sleeve, and thus the deformation range of the cable is effectively reduced, and the service life of the cable is significantly prolonged.

The present invention discloses an energy-saving explosion-proof oil wellhead intelligent electromagnetic anti-wax device, which belongs to the field of oil production technology, and comprises: a pipe body, an explosion-proof shell and a positioning flange are detachably installed on the outside of the pipe body, a mounting mechanism is arranged at one end of the pipe body, a heat preservation cover is fixedly installed on the outside of the explosion-proof shell, a cooling mechanism, a photovoltaic power generation mechanism and a control mechanism are arranged on the top of the heat preservation cover, a superconducting coil is arranged inside the explosion-proof shell, a temperature sensor and a quantum Hall effect sensor are arranged in the pipe body, and a dispersion mechanism comprises: a horizontal axis, a toggle blade, a vertical axis, a first bevel gear, a second bevel gear, a third bevel gear, a bevel gear ring and a circular ring. The present invention can form a strong magnetic field in a crude oil pipeline through the superconducting coil to achieve the anti-wax effect, and can achieve efficient cooling of the superconducting coil through the cooling mechanism and the dispersion mechanism to ensure continuous working effect, and improve the energy saving and environmental protection of the anti-wax device through the photovoltaic power generation mechanism.

Photovoltaic assemblies configured to enable the use of first photovoltaic stacks with perovskite absorber in a solar panel as an electrical generator on the sunlight side of a solar panel, while second photovoltaic stacks with perovskite absorber that are on the shadow side of the solar panel undergo a self-repair process during the day. The photovoltaic device includes a solar panel provided with such photovoltaic assemblies and further includes an electrical connection device adapted to connect electrodes of stacks with perovskite absorber that are on the sunlight side in order to create a multi-junction photovoltaic generator, the connection device being adapted to connect the electrodes of stacks on the shadow side of the solar panel to a regeneration module.