279results about How to "Increase power generation" patented technology

The invention is suitable for the field of photovoltaic technology, and provides a battery assembly and a photovoltaic system, and the battery assembly comprises a plurality of battery pieces, each battery piece comprises a chamfer edge and a straight edge which are parallel to each other, and the plurality of battery pieces are partially overlapped in a first direction to form a battery string. The plurality of battery strings are partially overlapped along the second direction to define a plurality of closed areas, the plurality of battery pieces are partially overlapped to eliminate the piece spacing, and the plurality of battery strings are partially overlapped to define a plurality of closed areas to reduce the string spacing; according to the photovoltaic module, more battery pieces can be arranged in a limited area, the utilization rate of the space area and the power generation power of the module are improved, in addition, due to the formation of the closed area, the light leakage condition of the battery module can be improved, and the power generation efficiency of the photovoltaic module can be improved by utilizing light rays in the intervals of the battery strings; the photovoltaic module is better in overall attractiveness, and the production efficiency can be improved.

The invention relates to a multi-machine cooperative yaw control method and device considering a dynamic wind direction and a medium. The multi-machine cooperative yaw control method comprises the steps that S1, the dynamic relation between the wind direction and a wake flow area is established based on a Gaussian-curl hybrid model; s2, constructing a single-machine yaw optimization model based on model predictive control, optimizing single-machine yaw by taking maximum generating capacity of a wind power plant and reduction of fatigue load as optimization objectives, and obtaining a single-machine optimal yaw angle through rolling optimization and feedback correction; and S3, a serial optimization method is adopted to carry out multi-round iterative optimization on one fan by one fan, and an optimal multi-fan cooperative yaw control result is obtained. Compared with the prior art, the method has the advantages that higher total generating capacity and more balanced fatigue load can be realized, so that the whole wind power plant reaches the optimal state of power and load in a large range.

The invention provides a gravity energy storage device with a function of uninterruptible loading and unloading of weight blocks, the gravity energy storage device comprises a transportation module and a loading and unloading module, the transportation module comprises a rotating wheel part, a chain part and a bearing mechanism, the bearing mechanism is arranged on the chain part, the rotating wheel part is arranged at the end part of the transportation module, and the chain part moves around the rotating wheel part; the loading and unloading module comprises a conveying channel, a supporting mechanism and a weight block body, the supporting mechanism is arranged on the conveying channel, the weight block body is arranged on the supporting mechanism through driving of the conveying channel, and the supporting mechanism and the bearing mechanism can be coupled or decoupled to drive the weight block body to be separated from or connected with the supporting mechanism. According to the gravity energy storage device with the function of uninterruptible loading and unloading of the weight block, stable and continuous electric energy can be generated during power generation and energy storage under the condition that the device is uninterruptible when the weight block body is loaded and unloaded and the transportation module generates power, and under the condition that equipment does not need to be added, the power generation power and the operation efficiency are improved, and the cost is reduced.

The invention discloses a bus bar for a full-screen assembly and a manufacturing method of the bus bar. The bus bar is characterized by comprising a conductive substrate and an insulating rubber strip, a hollow structure is arranged on the insulating rubber strip; the conductive substrate is arranged on the insulating rubber strip; and the hollow structure is covered by the conductive substrate. By improving the bus bar structure and the manufacturing and application process thereof, the improved bus bar is arranged on the back surface of the battery piece to be processed, so that the light receiving area of the module is not occupied, the full laying rate of the battery piece is improved, and the power generation power of the module is further improved; original reserved bus bar interval areas in the middle and on the periphery of the assembly are canceled, so that the whole assembly does not have a blank area any more, and the overall attractiveness is high; meanwhile, the improved bus bar is welded in the assembly lamination process, a bus bar welding process is not needed, the equipment investment can be saved, the technological process can be shortened, and the production cost can be reduced.

The invention discloses a wind turbine generator blade clearance monitoring, error evaluation and threshold optimization method and system, and the method comprises the steps: monitoring a blade clearance value of a wind turbine generator in real time through clearance monitoring equipment, and synchronously measuring a distance value from a blade tip to a tower wall in the wind turbine generator through an installed calibration radar. And comparing the blade clearance value measured at each time point in the time period with the distance value, and determining clearance difference values corresponding to different time points. Statistical analysis is carried out on the clearance difference values corresponding to all the time points in the specified time range, the clearance difference mean value in the time range is determined, and the clearance monitoring error of the wind turbine generator can be evaluated and the clearance alarm threshold value can be optimized through the clearance difference mean value. Therefore, the influence of factors such as cabin glass fiber flatness, a cabin inclination angle, a clearance equipment installation angle and a tower drum inclination angle on clearance alarm monitoring is eliminated, and the power generation loss caused by clearance false alarm is effectively reduced.

The invention relates to the technical field of tunnel lighting adjustment, and discloses a high-efficiency energy-saving tunnel lighting system capable of relieving a black and white hole effect, which utilizes a dimming module outside a tunnel hole to adjust the variation amplitude of illumination intensity outside and inside the tunnel and implements a photovoltaic power generation process by means of illumination. Therefore, the visual transition process of a driver from strong light to weak light at a tunnel portal is realized, and photovoltaic power generation is comprehensively utilized to reduce energy consumption. Besides, environment information inside and outside the tunnel is obtained regularly through the tunnel environment sensing module, the environment information is transmitted to the intelligent dimming module, the intelligent dimming module intelligently analyzes the tunnel light environment under the visual comfort condition of the driver according to the environment information, and the lighting condition with the visual comfort is calculated. And the illumination intensity and the color temperature index in the tunnel are dynamically adjusted, so that the technical effect of intelligently adjusting the illumination environment in the tunnel is achieved, and the passage process of the tunnel is safer and more comfortable.

The invention discloses a condenser and flue gas waste heat utilization system for an ammonia power plant, which belongs to the technical field of power generation and comprises a condenser, a condensate pump, a circulating water regulating valve, a liquid ammonia regulating valve, an ammonia regulating valve, a primary flue gas heat exchanger, a secondary flue gas heat exchanger, a water collector, a steam extraction heater, a pure ammonia burner, a boiler, an air pre-heater, a chimney and a steam turbine. A condenser and a liquid ammonia evaporator are integrally designed, the condenser comprises a liquid ammonia cooling area and a circulating water cooling area, liquid ammonia gasification cold energy of an ammonia power plant is used for cooling steam exhausted by a low-pressure cylinder of a steam turbine, the heat exchange efficiency is improved, and the load of a cooling tower is reduced; the tail of the pure ammonia boiler is free of dust removal and desulfurization facilities, waste heat of high-temperature and high-humidity flue gas at the outlet of the air pre-heater is used for replacing steam extraction of a steam turbine to heat condensed water and low-temperature ammonia gas, the generating power of a unit can be increased, secondary condensation of the ammonia gas can be prevented, the combustion stability of the ammonia gas can be improved, and meanwhile a large amount of water in the flue gas can be recycled.

The invention discloses a thermal power plant circulating water pump operation optimization method using a multi-objective culture differential evolution algorithm, a storage medium, equipment and a computer program product. Comprising the steps of collecting historical frequency converter instructions in the thermal power plant circulating water system, circulating water pump parameters under the corresponding frequency converter instructions and condenser vacuum degrees in the thermal power plant circulating water system, determining the normal use range of the frequency converter instructions, and establishing a comprehensive objective function; and in the application range of the frequency converter instruction, with the purpose of minimizing the comprehensive objective function, optimizing the frequency converter instruction by using a multi-objective culture differential evolution algorithm, determining the optimal frequency converter instruction, issuing the optimal frequency converter instruction to obtain the optimal circulating water pump parameter and the optimal condenser vacuum degree, and operating the thermal power plant circulating water pump. The power generation capacity of the thermal power plant is improved on the basis of reducing the energy consumption of the thermal power plant circulating water system, so that the energy consumption is reduced, and the power generation cost is reduced.

The invention relates to the field of nano-coatings, in particular to a nano-coating for decomposing dirt on a photovoltaic panel based on a photocatalysis technology, the nano-coating is composed of a bottom layer and a self-cleaning layer, and the bottom layer is made of nano-silver; the self-cleaning layer comprises 60 to 70 parts of titanium dioxide nanoparticles, 10 to 20 parts of zinc oxide nanoparticles, 5 to 10 parts of ferric oxide nanoparticles, 5 to 10 parts of zirconium dioxide nanoparticles, 60 to 120 parts of a solvent, 1 to 3 parts of a dispersing agent, 0.5 to 1.5 parts of a thickening agent and 1 to 3 parts of an antirust agent; the bottom layer and the self-cleaning layer are creatively added on the outer side of the photovoltaic panel, the basic bottom layer has good conductivity, antibacterial property and corrosion resistance, the self-cleaning layer can effectively keep transparency of photovoltaic glass on the surface of the photovoltaic panel by constructing concave-convex structure roughness below 50nm, and the self-cleaning layer has good anti-corrosion performance. And the nanometer coating can effectively decompose organic matter dirt on the surface of the photovoltaic panel under the illumination condition, the cleaning frequency is reduced by 80% or above, and the manual operation and maintenance amount is reduced.

The invention provides a novel compressed air and hydrogen energy storage coupling system and a working method thereof. The system comprises an air and hydrogen coupled energy storage circulating system, an air and hydrogen coupled energy release circulating system and a waste heat multi-stage recycling heat storage circulating system. The energy storage cycle of the coupling system converts electric energy into hydrogen energy and pressure energy of air for storage, the energy release cycle converts the pressure energy and the hydrogen energy of the air into electric energy for release, the heat storage cycle system recycles and utilizes heat in the system operation process in a multi-stage mode through heat conduction oil and cooling water, and tight coupling of compressed air energy storage and hydrogen energy storage is achieved. According to the coupling system, cooling water and heat conduction oil are used as heat exchange media, heat energy generated in the energy storage process of the system is recycled in a multi-stage mode, the stored heat energy is used for heating air and hydrogen in the energy release process, and therefore the power capability of high-pressure air and hydrogen is improved. The system mixes the exhaust gas of the air expansion machine with oxygen, and the mixed gas is depressurized by the pressure stabilizing valve and then supplied to the hydrogen fuel cell, so that the oxygen concentration in the mixed gas is increased, and the power generation performance of the hydrogen fuel cell can be effectively improved.

The invention discloses a TBC battery structure, a preparation method thereof and a TBC battery, in the structure, a P region and an N region are respectively provided with a P-type / N-type doped polycrystalline silicon passivation layer, and an oxygen-doped polycrystalline silicon layer is arranged between the P region and the N region. The preparation method comprises the step of preparing the P-type / N-type doped polycrystalline silicon passivation layer and the oxygen-doped polycrystalline silicon layer on the P region and the N region. In the structure, the oxygen-doped polycrystalline silicon layer is arranged between the P region and the N region, so that the P region and the N region can be effectively separated, an excellent shadow shielding resisting function of a corresponding assembly can be realized, and the generating capacity of the assembly in a shadow shielding environment can be further improved. According to the preparation method, the design of depositing multiple tunneling oxide layers and polycrystalline silicon layers at a time, the design of a laminated mask, a new isolation mode, an efficient cleaning process and the like are adopted, the problems that an existing TBC battery preparation process is tedious, boron-doped polycrystalline silicon laser ablation residues exist, the investment and generation cost is high and the like are effectively solved, and the preparation method is a brand-new TBC battery route.

The offshore wind power platform tidal energy vibration reduction power generation device is in a circular truncated cone shape, is fixedly arranged on a sunken pile in a sleeving mode and comprises a bottom disc and a top disc, the diameter of the top disc is larger than that of the bottom disc, the two sides of the top disc are connected with a working platform on the upper portion of the sunken pile through cables, and a connecting structure is arranged between the top disc and the bottom disc. An annular locking structure is coaxially arranged at the top of the top disc and sleeves the sunken pile, horn-mouth-shaped flow guide structures are uniformly arranged on the side wall of the connecting structure, an impeller is arranged on the inner side of the connecting structure, an impeller mounting shaft is fixedly connected with a generator, and the generator is connected into a power storage device of the wind power platform. The effect of reducing the vibration amplitude of water flow impact on pile sinking is achieved, tidal energy is utilized for power generation, the height of the power generation device can be adjusted according to the rising tide condition, and the power generation efficiency is maintained.

The invention discloses a control method and device of a wind generating set and a program product. In the method, operation parameters of the wind generating set are obtained; under the condition that the operation parameters meet the control conditions, it is determined that the wind generating set is in the grid-connected rotating speed control stage, the control parameters are obtained, and the first corresponding relation between the control parameters and the pitch angle is obtained; determining target pitch angle data corresponding to the control parameters according to the control parameters and the first corresponding relation between the control parameters and the pitch angles. The determined target pitch angle data is the pitch angle data when the wind generating set achieves the better output power in the current operation state. And controlling the wind generating set according to the target pitch angle data. Therefore, in the grid-connected rotating speed control stage, the pitch angle of the wind generating set is optimized according to the control parameters, so that the output power of the wind generating set is improved, and the generating capacity of the wind generating set is improved at a low wind speed.

The invention relates to the technical field of new energy power generation, in particular to a new energy fan master control system improvement method and system, and the method comprises the steps: collecting fault information of a new energy unit; performing electrical and program design according to the fault information; a fan unit is transformed on site according to electrical and program design; and carrying out performance test and acceptance on the transformed fan set. By improving the master control system of the new energy fan set, including upgrading the protection strategy and the control logic of the master control system, the fault probability of the set is reduced, the equipment maintenance time is shortened, the operation stability of the equipment is improved, the operation data and the state information can be monitored and analyzed in real time, and the management and the control of the operation state of the fan are enhanced. By technically improving the variable pitch system and optimizing the control logic of the variable pitch motor, frequent input of an electromagnetic brake, overcurrent of the motor and failure of a driver are avoided, the overall failure rate of the variable pitch system is reduced, the availability and the generating capacity of a unit are improved, and the electric quantity income is increased.

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 discloses a photovoltaic module inspection method and inspection system based on an unmanned aerial vehicle. The inspection method for the photovoltaic module based on the unmanned aerial vehicle comprises the following steps: performing first inspection on the photovoltaic module to obtain a first coordinate of a fault module; taking the first coordinate as a first inspection point, and planning a first inspection path based on the first inspection point; according to the first inspection path, utilizing the unmanned aerial vehicle to obtain an electroluminescent image set corresponding to the fault component; fault identification is carried out according to the electroluminescent image set, a second fault type of the target fault component is obtained, and the flight height of the unmanned aerial vehicle during first inspection is larger than the flight height of the unmanned aerial vehicle during flying of the first inspection path. According to the photovoltaic module inspection method based on the unmanned aerial vehicle provided by the embodiment of the invention, the blindness of inspection can be reduced, targeted fault type acquisition and fault cause acquisition are performed on the fault module, and the fault identification accuracy is ensured while high-efficiency inspection is ensured.

The invention provides a design method of a cable connection mode in a photovoltaic power generation project and a related product. The design method of the cable connection mode in the photovoltaic power generation project comprises the steps of obtaining a photovoltaic panel design scheme of the photovoltaic power generation project; reading the specification, number, arrangement mode and accessed inverter parameters of photovoltaic units in a photovoltaic array in the photovoltaic panel design scheme; determining the number of the photovoltaic units connected in series in each photovoltaic string according to the specifications and the number of the photovoltaic units and the parameters of the inverter; generating a to-be-selected wiring scheme according to the arrangement mode and the number of the photovoltaic units connected in series in each photovoltaic string; and simulating the to-be-selected wiring scheme, selecting the to-be-selected wiring scheme with the optimal simulation result, and combining the to-be-selected wiring scheme with the photovoltaic panel design scheme to form an overall scheme of a photovoltaic power generation project. According to the scheme, automatic design of the cable connection mode in a photovoltaic power generation project is achieved, the design efficiency is improved, the power generation efficiency of photovoltaic power generation can be improved, and the requirements of construction owners are met.

The invention discloses a control method, device and system of a wind turbine generator, a medium and a product, and belongs to the technical field of wind power generation. The method comprises the steps of obtaining the wind speed of an area where a wind turbine generator is located in a first time period; determining the operation condition of the wind turbine generator according to the wind speed; and under the condition that the operation condition is the target condition and the self-protection function of the wind turbine generator is closed, the self-protection function of the wind turbine generator is started, and the wind turbine generator is controlled to execute a first control strategy. Namely, the complex condition of the unit can be automatically recognized according to the wind speed of the area where the unit is located, the self-protection function of the unit is automatically started under the condition that the unit is in the complex condition and the self-protection function of the unit is closed, and the unit is controlled to execute the first control strategy. Therefore, under the condition that the safety of the unit is ensured, the shutdown frequency is reduced, and the generating capacity is improved.

The embodiment of the invention provides a fault diagnosis and treatment method and system for a wind generating set, and belongs to the technical field of wind power. The method comprises the steps that running state information of a target wind generating set is collected, and running state judgment of the corresponding wind generating set is executed based on the running state information; when it is judged that the operation state of the target wind generating set is abnormal, fault type judgment is triggered, and a corresponding fault type judgment result is obtained based on cached operation state information; executing corresponding control scheme matching based on the judgment result of the fault type; and controlling the target wind generating set based on the matched control scheme. According to the scheme, the accuracy and timeliness of fault diagnosis can be effectively improved, intelligent control over the wind generating set is achieved, man-made misjudgment and downtime are reduced, and the overall operation efficiency and generating capacity of a fan are improved.

The utility model discloses a photovoltaic module, which comprises a reflective structure and a battery string group, the battery string group comprises a plurality of battery pieces, gaps are arranged among the plurality of battery pieces, and the orthographic projection of the reflective structure on the battery string group at least covers the gaps among the plurality of battery pieces; the light reflecting structure comprises a first light reflecting layer close to the battery piece and a second light reflecting layer stacked with the first light reflecting layer, the first light reflecting layer is an organic material layer, and the second light reflecting layer is a metal layer. According to the embodiment of the utility model, the infrared light entering the gaps among the plurality of battery pieces is reflected by the reflective structures, so that the infrared light is irradiated on the battery pieces again, and the battery pieces absorb the infrared light and convert the infrared light into electric energy, thereby improving the power generation power of the photovoltaic assembly.

The invention relates to the technical field of incineration fly ash treatment, and discloses a fly ash internal circulation treatment system and method. The fly ash internal circulation treatment system is used to treat the fly ash in an internal circulation manner, and the method comprises the following steps: flue gas purification treatment, flue gas filtration treatment, fly ash storage treatment and fly ash circulation treatment. The invention utilizes the unreacted fly ash at the bottom of a rotary spray deacidification reaction tower to carry out a secondary reaction, and pneumatically conveys the fly ash to the horizontal flue of the rotary spray deacidification reaction tower to react with acidic gas in the flue gas, thereby reducing pollutant emissions. The coordinated use of the ash storage system and the internal circulation system can reduce the pollution risk of fly ash to the environment and reduce the emission concentration of pollutants during the incineration process. On the other hand, the fly ash treatment cost is reduced, the auxiliary material consumption is reduced, the operating efficiency of the incinerator is improved, and the power generation is increased.

The invention provides a continuous and stable power generation circulating device for gravity energy storage, which comprises a weight block body, a bearing mechanism, a weight circulating module and a bearing circulating module, and is characterized in that the bearing mechanism can load the weight block body, the weight circulating module comprises a rotating wheel and a chain condition arranged along the conveying direction, and the chain condition rotates around the rotating wheel; the bearing mechanism is slidably arranged on the weight circulation module in the conveying direction, the end of the bearing mechanism is meshed with the chain condition, and the chain condition can keep moving. According to the circulation device, the chain condition can be always in a rotating operation state in the power generation process, then power generation is stable and continuous, power generation circulation of single-channel gravity energy storage can be achieved due to the fact that the chain condition in the weight circulation module can be matched with the bearing mechanism in an accumulation and free mode, extra auxiliary equipment is not needed, and the power generation efficiency is improved. The mechanical loss is reduced, the bearing circulation module can also realize flexible scheduling, the no-load rate is reduced, and the equipment utilization rate and the circulation efficiency are improved.

The invention provides a gravity energy storage electricity generation and storage circulating device with a high duty ratio, the device comprises a conveying channel, a displacement channel and a chain plate piece, the conveying channel surrounds the displacement channel, the conveying channel and the displacement channel each comprise a chain piece and a rotating wheel piece, and the rotating wheel pieces are arranged at the end of the conveying channel and the end of the displacement channel; the chain piece surrounds the rotating wheel piece; the chain plate piece can be bent in the conveying channel, and the chain plate piece can bear the weight block body in the shifting channel and drive the weight block body to move from the loading position to the unloading position. According to the device, the weight block body can move in a limited space, the space occupied by a conveying channel can be reduced, then high-duty-ratio conveying is achieved, and the efficiency is improved; the integrated design saves space and occupied area, realizes intensive design, and is particularly suitable for a scene with limited space; the power grid can be directly connected, so that power generation is stable and smooth; and the problems of low equipment utilization rate and low circulation efficiency of the bearing mechanism are also solved.

The invention relates to the technical field of wave power generation, in particular to floating type wave power generation equipment with a variable energy capturing body structure and a controllable energy conversion system. The device comprises an upper buoy, a power generation cabin and a lower buoy which are sequentially connected from top to bottom, a bottom frame is arranged below the lower buoy, the bottom frame is fixed to the lower portion of the lower buoy through a base frame arranged in the middle of the bottom frame, a plurality of resistance adjusting assemblies are arranged on the periphery of the side wall of the bottom frame, and the outer wall of the upper buoy is movably sleeved with a floating body. The device is reasonable in structural design, mechanical and hydraulic transmission energy conversion modes are adopted, the energy conversion mode of power generation equipment can be changed in time according to the size of a wave condition, and under the normal wave condition, the mechanical and hydraulic hybrid transmission mode is adopted, so that the transmission efficiency is effectively improved; under the extreme wave condition, the floating body dives to the position below the sea surface, so that the impact load borne by the oscillating floating body is effectively reduced, the equipment is prevented from being impacted excessively, the reliability of the equipment is improved, the service life of the equipment is prolonged, and the problems existing in the prior art are solved.

This application provides a vertical heat recovery coke oven waste heat exchange unit, waste heat utilization system, and method, using supercritical carbon dioxide as the heat exchange medium. The unit includes a main compressor, a regenerator assembly, a high-pressure turbine, a low-pressure turbine, a precooler, and a heat exchanger. The heat exchanger internally houses a high-temperature superheater, a high-temperature reheater, a low-temperature superheater, a low-temperature reheater, an air-cooled wall, and an economizer. The main compressor outlet is connected to the cold-side inlet of the regenerator assembly, and the cold-side outlet of the regenerator assembly is connected to the working fluid inlet of the heat exchanger. The working fluid flows sequentially through the economizer, the air-cooled wall, the low-temperature superheater, and the high-temperature superheater before entering the inlet of the high-pressure turbine. The high-pressure turbine outlet is connected to the inlet of the low-temperature reheater, the low-temperature reheater outlet is connected to the inlet of the high-temperature reheater, and the high-temperature reheater outlet is connected to the inlet of the low-pressure turbine. The low-pressure turbine outlet is sequentially connected to the hot side of the regenerator assembly, the precooler, and the main compressor inlet.

The invention discloses an automobile charging pile system integrating photovoltaic power generation and intelligent management, and relates to the field of photovoltaic power generation and automobile charging pile integration, and the system comprises a photovoltaic installation module, an electric pile overall module, a user charging module and a safety protection module. The photovoltaic mounting module is used for acquiring the optimal angle for mounting the photovoltaic power generation panel, and mounting the photovoltaic power generation panel according to the optimal angle of the photovoltaic power generation panel; the charging pile overall module is used for forming an overall automobile charging pile based on a photovoltaic power generation panel, a junction box, a direct current circuit breaker, a core converter, a storage battery and the charging pile; the user charging module is used for a user to use the charging pile by scanning a two-dimensional code on the charging pile through an APP or an applet; the safety protection module comprises an automobile charging protection unit, a circuit protection unit and a user protection unit, and is used for solving the problems that the energy consumption is increased, the environment is polluted and the like due to the fact that existing electric automobile charging pile power supply technologies mostly depend on power grid power supply.

The invention provides a wind generating set electrical component cooling device and a control method thereof, and belongs to the field of wind power generation. The device comprises a cabin cover, an electrical component located in the cabin cover, an isolation chamber forming an independent space with an air inlet and an air outlet of the electrical component, refrigeration equipment and a maintenance door. The isolation chamber is composed of a cabin cover and isolation plates arranged on the left side, the right side and the upper side of an air inlet and an air outlet of the electrical component respectively. An opening is formed in the cabin cover side in the isolation chamber, and the refrigeration equipment is fixedly mounted at the opening; and the maintenance door is arranged on a left isolation plate of the isolation chamber. Under the condition that the overall structure of the unit is not changed, the fault rate is reduced and the service life of components is prolonged by changing the operating environment temperature of the electrical components.

This application relates to a modular enclosure structure for prefabricated green buildings, belonging to the field of green building technology. It includes an enclosure component assembled from multiple enclosure panels. A ventilation component is installed through the enclosure component, comprising a mounting frame, a blade shaft rotatably mounted inside the mounting frame, and multiple sets of louvers fixedly mounted on the outside of the blade shaft. The enclosure component contains a drive component for opening and closing the louvers. This application achieves adaptive temperature adjustment of the enclosure structure by setting a linkage mechanism between the louvers driven by shape memory alloy springs and the photovoltaic panels. At high temperatures, the louvers automatically open for ventilation and the photovoltaic panels flip to increase power generation and shading area. At low temperatures, the louvers automatically close for insulation and the photovoltaic panels reset. The entire adjustment process requires no external power supply, no sensors, and no manual operation, thus improving the ease of use of the device to a certain extent.

The present invention provides an ultra-compact integrated dual-wind-rotor wind turbine transmission chain structure and a control method thereof, wherein a yaw system is installed at the top of a tower, a first planetary gear transmission mechanism is arranged on one side of the top of the yaw system, the first planetary gear transmission mechanism is connected to the large impeller, the first planetary gear transmission mechanism is connected to the first parallel gear transmission mechanism; the first parallel gear transmission mechanism is connected to the first generator and the second generator; a second planetary gear transmission mechanism is arranged on the other side of the top of the yaw system, the second planetary gear transmission mechanism is connected to the small impeller, the second planetary gear transmission mechanism is connected to the second parallel gear transmission mechanism, the second parallel gear transmission mechanism is connected to the first generator through an electromagnetic clutch, and the second parallel gear transmission mechanism is connected to the motor at the same time. This transmission chain can realize reliable, safe, efficient and stable operation, effectively shorten the transmission distance of the transmission chain of the dual-wind-rotor wind turbine set, and expand the wind speed range of effective power generation of the dual-wind-rotor wind turbine set.

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.