24results about How to "Reduce power generation efficiency" patented technology

The invention relates to the technical field of solar photovoltaic power generation, and discloses a water surface floating type solar photovoltaic power generation device which comprises a cleaning mechanism, the cleaning mechanism further comprises a floating base, the top of the floating base is fixedly connected with a supporting frame, stormy waves push a floating plate to move up and down, and a hydraulic plate is pushed to move up and down through a hydraulic column and a first connecting rod. A hydraulic plate moves upwards to extrude hydraulic oil at the top of the hydraulic plate, the hydraulic oil enters a telescopic pipe through a hydraulic pipe, so that the telescopic pipe extends out, when the telescopic pipe extends out, a brush moves downwards through a connecting block, when the brush moves downwards, a first gear is meshed with a first rack, the brush continuously rotates to make contact with a photovoltaic panel, and when a floating plate moves up and down, the brush continuously rotates to make contact with the photovoltaic panel; dust and impurities on the surface of the photovoltaic panel are removed, and the situation that the surface of the photovoltaic panel is blocked by the dust and impurities, the contact area with sunlight is reduced, and the power generation efficiency of the photovoltaic panel is reduced is prevented.

The invention particularly relates to a solar charging type dock and an unmanned ship, and relates to the technical field of unmanned ships, the solar charging type dock comprises an unmanned ship body and an upper bin body arranged on the upper side of the unmanned ship body in a communicating mode, a charging socket is installed on the rear side of the unmanned ship body, and inner slopes are obliquely arranged on the left side and the right side of the bottom of the unmanned ship body correspondingly; a plurality of clamping grooves are formed in the middle of the inner inclined face, the lifting movable plate can be arranged in the unmanned ship body in a suspended mode according to the magnetic principle that under the condition that a lower electromagnet in the unmanned ship body is powered on, the same poles of the lower electromagnet and an upper floating magnet repel each other, and a space frame on the lifting movable plate is used for installing electric appliance accessories of the unmanned ship. The rubber floating air bag is fixedly arranged on the periphery of the lifting movable plate, the buoyancy of the lifting movable plate can be improved, when the water level of water entering the unmanned ship body is high, the rubber floating air bag enables the lifting movable plate to float, and the water level of the water entering the unmanned ship body is high. Therefore, the use effect is improved.

The invention discloses a wind turbine generator variable pitch communication fault monitoring system and device, and relates to the technical field of monitoring systems.The wind turbine generator variable pitch communication fault monitoring system comprises an on-site monitoring system which comprises a wind turbine generator variable pitch control unit, an on-site monitoring module, a data acquisition module and a communication module and is used for acquiring, processing and transmitting monitoring data of a unit in real time; and the central monitoring system comprises a data receiving module, a data storage library, a state judgment module and a fault signal sending module, and is used for receiving, storing and analyzing data and early warning faults. According to the method, equipment damage and casualty risks caused by fault upgrading are avoided, powerful support is provided for safe and stable operation of the wind generating set, and the shutdown risk and the maintenance difficulty are remarkably reduced.

The invention relates to the technical field of photovoltaic thermal management, in particular to a thermal management system and a preparation method of a phase change material.The system is used for conducting thermal management on heat generated by a photovoltaic module, the thermal management system comprises a heat exchange module, the heat exchange module is connected to the photovoltaic module, and the heat exchange module is provided with a working medium cavity; the working medium cavity is internally provided with a phase change material, and the phase change material is configured to perform heat exchange with the photovoltaic module. According to the thermal management system, the heat exchange assembly is connected with the photovoltaic assembly, and the phase change material in the working medium cavity of the heat exchange assembly can absorb the heat of the photovoltaic assembly when the photovoltaic assembly is subjected to photoelectric conversion and the temperature rises, so that the photovoltaic assembly is cooled, and the technical problem that the power generation efficiency is reduced due to the temperature rise of the photovoltaic assembly is avoided.

The invention relates to an intelligent photovoltaic curtain wall which has the function of adjusting light transmission intensity. The surface of the photovoltaic curtain wall is fully covered by the photovoltaic module, the supporting body is installed behind the photovoltaic battery module, and the photovoltaic module is fixed on the supporting body through the module fastener. Air hole channels are arranged among the photovoltaic modules to adjust temperature, and air holes can be connected with external constant-temperature systems such as a central air conditioner, so that the photovoltaic curtain wall has good constant-temperature capability. The photovoltaic cell is located between the guide rails, and the controller controls the driving motor to achieve movement of the cell position, so that the light transmission intensity is adjusted in good time. A mechanical arm and a control motor are arranged in the photovoltaic cell storage box and used for storage and output of photovoltaic cells, and the control motor receives instructions of the controller to operate. The controller is connected with the driving motor and the control motor through data lines, the shielding area ratio of the photovoltaic cell is automatically adjusted according to user requirements, and automatic adjustment of the light transmission intensity is achieved.

The invention provides a photovoltaic photo-thermal coupling distributed energy complementary energy supply system and method, and the system comprises a gas power generation system which comprises a gas turbine generator set. The waste heat boiler system comprises a waste heat boiler; the steam turbine power generation system comprises a steam turbine generator set; the photovoltaic and photo-thermal power generation system comprises a photovoltaic and photo-thermal integrated device; the waste heat exchange system comprises a first heat exchange device and a second heat exchange device; according to the system, energy flow between systems is optimized in a heat energy recovery and multi-energy coupling mode, the energy utilization efficiency is improved, and the operation cost is reduced. According to the invention, waste heat of the back plate of the photovoltaic module is utilized to preheat natural gas at an inlet of the gas turbine and make-up water of the waste heat boiler in advance, so that the problems of a cooling cold source of the back plate of the photovoltaic module and freezing prevention in a low-temperature environment are solved, and the problems of corrosion of a turbine nozzle of the gas turbine and low-temperature corrosion of a boiler mortgage economizer are solved; waste heat generated by the photovoltaic module is deeply coupled with the natural gas heating system and the waste heat boiler feed water waste heat system.

The invention relates to the technical field of photovoltaic panels, in particular to an automatic cleaning device for a solar photovoltaic panel. According to the technical scheme, the electromagnetic attraction assembly comprises a protective shell, an iron column, a coil, a hydraulic assembly, a magnetic metal block, an annular magnet and a hydraulic telescopic rod, the protective shell is fixedly installed on the side of an upper expansion plate, the iron column is fixedly installed in the protective shell, and the coil electrically connected with a solar panel is wound around the cambered surface of the iron column; a hydraulic assembly is fixedly installed in the protective shell and located at the end of the iron column, and an annular magnet is fixedly installed at the end of the hydraulic assembly. After the surface of the solar panel is covered with dust, the power generation efficiency of the solar panel is reduced, and the current flowing in the coil is reduced, so that the hydraulic telescopic rod extends out to enable the cleaning piece to move on the surface of the solar panel, the dust on the surface of the solar panel is scraped, and the influence of dust covering on power generation of the solar panel is avoided.

The invention belongs to the technical field of electric energy meters, and mainly relates to a multi-loop direct-current electric energy meter which comprises a body and input modules arranged on the two sides of the body and integrally designed with mounting bayonets. The input module comprises a power supply module used for connecting an external power supply to the multi-loop DC electric energy meter and a sampling module used for connecting an external loop to be measured to the multi-loop DC electric energy meter. The body is provided with a control module and a display module electrically connected with the control module; the control module is electrically connected with the sampling module; the sampling module comprises a voltage detection unit and a current detection unit; the voltage detection unit is used for transmitting a detected voltage signal of a loop to be detected to the control module; the current detection unit is used for transmitting a detected current signal of the loop to be detected to the control module; the at least two voltage detection units and the at least two current detection units are used for detecting to-be-detected loops in different voltage and current ranges; through the above design, the electrical parameters among the photovoltaic power generation group strings can be effectively monitored.

The utility model discloses a photovoltaic support structure for a same offshore wind and light field in the technical field of renewable energy power generation. The photovoltaic supporting structure for the same offshore wind and light field comprises an offshore wind power plant used for power generation and photovoltaic panels, the photovoltaic panels are laid in unoccupied sea areas between wind turbine generators of the offshore wind power plant, the photovoltaic supporting structure further comprises first rail cables fixedly connected to the wind turbine generators, and each first rail cable comprises a middle parallel section and anchoring sections at the two ends; the parallel sections are parallel to the horizontal plane and arranged between the wind turbine generators, and the anchoring sections are used for anchoring the two ends of the first rail cable to the seabed. The system further comprises a frame-type steel truss structure, the frame-type steel truss structure is fixedly connected to the adjacent first rail cables, and a photovoltaic panel is laid on the upper end face of the frame-type steel truss structure. The first rail cable and the frame type steel truss structure serve as supporting structures, implementation is convenient, the engineering amount is small, the construction cost is low, the method can be suitable for deeper sea areas, and when the method is suitable for construction near the built wind power plant, the built wind power plant is not disturbed by pile soil.

The invention relates to the technical field of photovoltaic power generation, in particular to a wind-resistant variable-angle photovoltaic power generation device which comprises a mounting seat, a wind-resistant mechanism is arranged at the bottom of the mounting seat, a photovoltaic power generation panel is mounted at the top of the mounting seat, a cleaning mechanism is arranged on the outer wall of the mounting seat, and a controller is mounted on the outer wall of the mounting seat. A binding post is installed at the position, close to the controller, of the outer wall of the installation base. The wind-resistant variable-angle photovoltaic power generation device comprises a mounting base, a wind-resistant mechanism is arranged in the mounting base, the wind-resistant mechanism comprises a fixing block fixedly connected to the outer wall of the mounting base, and a rotating shaft is fixedly connected to the interior of the fixing block. The problems that in order to receive enough solar energy, a photovoltaic power generation panel is generally obliquely installed on an installation frame, when the external wind speed is too high, the windward area of the obliquely-installed photovoltaic power generation panel is large, and the photovoltaic power generation device is prone to being damaged are solved.

The utility model relates to a BIPV (building integrated photovoltaics) aluminum-plate-imitated photovoltaic power generation plate, which aims at solving the technical problem that a certain amount of dust is accumulated on a current photovoltaic power generation plate after the current photovoltaic power generation plate is used for a long time, so that the power generation efficiency of the photovoltaic power generation plate is influenced, the BIPV aluminum-plate-imitated photovoltaic power generation plate comprises a main body mechanism, the photovoltaic power generation panel is a BIPV (building integrated photovoltaics) imitation aluminum plate; the cleaning mechanism comprises an adjusting groove formed in the upper portion of the surface of the frame, a lead screw is rotationally connected between the two sides of an inner cavity of the adjusting groove, and an adjusting block is slidably connected into the adjusting groove. And meanwhile, the other side of the water pumping barrel is matched with a water suction pipe and a first one-way valve to collect cleaning water into the water pumping barrel, so that the water is extruded and sprayed out when the piston moves towards the other side, automatic water replenishing is performed in the process of cleaning the photovoltaic power generation panel, and the cost of water spraying by using a pump body and the maintenance cost are further reduced.

The utility model relates to the field of photovoltaic power generation devices, and discloses a novel green energy-saving photovoltaic outer wall device which comprises a photovoltaic panel, a base fixedly arranged on the back face of the photovoltaic panel, a mounting plate fixedly arranged on one side of the base, a mounting hole formed in the mounting plate, a driving air cylinder fixedly arranged on the top of the base, and a water storage barrel arranged on the top of the photovoltaic panel. The photovoltaic power generation device further comprises a dust scraping assembly and a clamping assembly, the driving air cylinder is used for driving the scraping plate to remove dust and other garbage on the front face of the photovoltaic panel, the dust covers the surface of the photovoltaic panel and can block direct irradiation of sunlight, so that the power generation efficiency is reduced, the shielding can be reduced by removing the dust, the photovoltaic panel can receive the sunlight more effectively, and the power generation efficiency is improved. The photovoltaic conversion efficiency of the photovoltaic panel is improved, the working temperature of the photovoltaic panel can be increased due to dust accumulation, aging of the photovoltaic panel can be accelerated and the service life of the photovoltaic panel can be shortened due to long-time high-temperature working, and the working temperature of the photovoltaic panel can be effectively reduced and the service life of the photovoltaic panel can be effectively prolonged by cleaning the surface of the photovoltaic panel.

The invention discloses a photovoltaic device for treating heavy metal soil pollution and an application method thereof, comprising a slope, wherein a solar array and a vegetation array are sequentially arranged on the slope surface of the slope, wherein the solar array is located above the vegetation array, and the solar array and the vegetation array are separated by a horizontally arranged pedestrian and horse path; the solar array comprises a plurality of evenly arranged solar panels, each of which is detachably fixedly matched with the slope through a hollow anchor rod, wherein a lifting anchor is arranged in the hollow anchor rod, and the hollow anchor rod is detachably fixedly matched with the slope through the lifting anchor rod, and the lifting anchor of the solar array is energizedly matched with the solar panel; the vegetation array comprises a plurality of evenly arranged vegetation boxes, and the vegetation boxes are detachably fixedly matched with the slope surface of the slope through anchoring thorns, so as to repair the soil, absorb heavy metals, save energy and protect the environment, and stabilize the slope.

The application relates to an implementation method and system of an electric brake, wherein the method comprises the following steps: when a brake pedal is triggered, requesting a brake power generation torque to be transmitted to a motor controller through a vehicle domain controller; based on the power generation torque, traversing a target query table to obtain a target direct-axis current and a target cross-axis current of a permanent magnet synchronous motor; based on the motor controller, converting the target direct-axis current and the target cross-axis current into energy, and distributing the converted energy to the motor and a battery system; when the voltage in the battery exceeds a preset value, based on the target query table, obtaining new target direct-axis current and new target cross-axis current of the permanent magnet synchronous motor, and distributing the new target direct-axis current and the new target cross-axis current to reduce the voltage in the battery system. The application timely converts brake force into heat to be consumed, reduces energy recovery, and reduces the wear of a mechanical brake.

The invention discloses a floating type offshore photovoltaic platform. Comprising a bottom frame; the first floating cylinders are mounted on the bottom frame; the top mounting frame is arranged above the bottom frame, is provided with a flexible cable and is used for mounting a photovoltaic panel; the upper ends of the stand columns are connected with the corners of the top mounting frame respectively, and the lower ends of the stand columns are connected with the corners of the bottom frame respectively; the upper ends of the reinforcing rods are connected with non-corners of the top mounting frame, and the lower ends of the reinforcing rods are connected with non-corners of the bottom frame. The vertical columns are arranged at the corners of the top mounting frame and the bottom frame, meanwhile, the reinforcing rods are additionally arranged to connect the non-corner areas of the top mounting frame and the bottom frame, and a three-dimensional supporting system of the corner vertical columns and the non-corner reinforcing rods is formed. Stress caused by sea wave impact, water flow disturbance and wind load can be dispersed, bending deformation and vibration amplitude of the top mounting frame are reduced, fatigue damage of the frame structure is avoided, and the overall structural strength of the platform is improved.

The invention belongs to the technical field of trap lamps, and particularly relates to a trap lamp convenient to collect insects and a using method, the trap lamp comprises a trap lamp body, a supporting rod, an adjusting rod and a photovoltaic panel, the trap lamp body is installed on one side wall of the adjusting rod, the photovoltaic panel is installed at the top end of the adjusting rod, the adjusting rod is connected to the top end of the supporting rod, and the supporting rod is connected to the top end of the adjusting rod. The supporting rod is vertically installed on the ground, an arc-shaped light reflecting plate is arranged in the trap lamp body and located at the top end in the trap lamp body, the top end of the trap lamp body is connected with a screw, and the screw penetrates through the trap lamp body to be fixedly connected with the arc-shaped light reflecting plate. According to the insect trapping lamp, the arc-shaped light reflecting plate is stably installed in the insect trapping lamp body through cooperation between the arc-shaped light reflecting plate and the screws, then the illuminance is increased and the illumination distance is increased when the insect trapping lamp body works, and therefore the use cost is reduced, and the insect collecting efficiency is improved.

The invention provides a power distribution-traffic network coupling optimization configuration method and system considering extreme weather, and the method comprises the steps: firstly constructing a power distribution-traffic network coupling node optimization configuration model which considers the influence of a multi-element mixed traffic flow in a traffic network and traffic waves caused by intersection traffic lights on the road traffic density distribution; the influence of different types of extreme weather on the electrified road is reduced; and solving the optimal configuration model of the power distribution-traffic network coupling nodes to obtain an optimal configuration scheme of electrified roads, energy storage and special transformers of the power distribution-traffic network coupling nodes. According to the method, a mode of combining an electric vehicle dynamic wireless charging system and a pavement paving photovoltaic system is adopted, a road with relatively large overall traffic flow is selected as a candidate coupling node to configure an electrified road, land occupation and power grid dependence of an independent charging station are greatly reduced, and on the premise of ensuring that the charging requirement is met, the charging efficiency is greatly improved. And the dynamic wireless charging service profit of the system is maximized.

The invention provides a solar street lamp with a cleaning function, and relates to the technical field of solar street lamps, the solar street lamp comprises a street lamp pole and a lamp body mounted on the street lamp pole, a photovoltaic module and a hexagonal frame are mounted on the street lamp pole, a plurality of groups of accommodating grooves are formed in the hexagonal frame, advertising boards are arranged in the accommodating grooves, and the advertising boards are arranged in the accommodating grooves. And a plurality of guide rails are mounted at the bottom of the hexagonal frame. The water collecting box is driven to move forwards until the front end of the water collecting box is inserted into the concave groove, and rainwater flows downwards along the concave groove in the inclined advertisement board and then enters the water collecting box along the water inlet; water in the water collecting box is pumped into the water tank, and water storage is completed; the advertisement board is driven to be in an inclined state so as to collect more water; water in the water tank is pumped to the water injection nozzle and sprayed to the photovoltaic module through the pump and the pipeline, dust particles on the photovoltaic module are removed in time, and the dust particles are prevented from reducing the power generation efficiency of the photovoltaic module.

The invention discloses a photovoltaic rotating device and a control method thereof, and a photovoltaic system, and the device comprises a photovoltaic plane support which is used for supporting a photovoltaic panel, the photovoltaic panel is disposed on the photovoltaic plane support, and the photovoltaic panel is used for receiving sunlight irradiation and converting solar energy into electric energy; the support rotating device comprises a sliding rod shaft and a rotating rod, the sliding rod shaft is connected with the photovoltaic plane support and used for supporting the photovoltaic plane support, one end of the rotating rod is connected with the photovoltaic plane support, and the other end of the rotating rod is connected with the sliding rod shaft and used for rotating the photovoltaic plane support according to the direction of the solar rays, so that the photovoltaic panel is perpendicular to the solar rays. The problems that in the prior art, the angle of a photovoltaic panel is fixed, and the solar energy utilization rate is low are solved, the sun angle is automatically tracked, solar radiation is absorbed to the maximum extent, the generating capacity of the photovoltaic panel is increased, and the generating efficiency of a photovoltaic system is improved.

The application discloses a kind of area grazing device of demarcation wheel area, including mobile part, control module, data acquisition device, sound simulation module and battery module, wherein, control module data acquisition device, sound simulation module and battery module are all set on the mobile part, the mobile part is moved along the preset route by control module control, data acquisition device the control module remains connection, to collect the real-time data of field of pasture, sound simulation module is connected with control module, and the sound played through the sound simulation module can make the sensitive response of herd, to drive herd, battery module provides power for the data acquisition device, control module and sound simulation module described above.The present application monitors herd in real time through image acquisition probe, at the same time, NDVI probe monitors the pasture height of pasture demarcation, so as to drive herd to the next pasture round area when the pasture height reaches the minimum preset height, and then realize unmanned grazing, reduce workload, reduce grazing cost.

A first seal (9) and a second seal (10) seal an annular space between an outer ring (5) and an inner ring (6) by sandwiching a retainer (8). A stator (12) including a coil (16) is supported by the first seal (9) and is opposed to a magnetic ring (13). A sensor (20), a wireless communication circuit (23), and a power supply circuit (19) are supported by the second seal (10). A wire (11) electrically connects the coil (16) and the power supply circuit (19). The wire (11) includes a part disposed in a groove (5b) extending in an axial direction of a bearing (2) on an outer peripheral surface of the outer ring (5).

This invention provides a method, apparatus, control device, and diagnostic system for diagnosing photovoltaic (PV) power generation systems. The method, based on a differential power processing device in the PV power generation system, includes: acquiring a terminal voltage signal and a current signal output in response to a preset excitation voltage signal from the PV panel under test based on a fault diagnosis trigger signal; matching the terminal voltage signal and current signal with a preset diode model of a solar cell to determine the values ​​of various modeled circuit parameters corresponding to the terminal voltage and current signals in the diode model of the preset solar cell; and performing fault diagnosis on the PV panel under test based on the values ​​of these modeled circuit parameters. This invention can avoid the reduction in PV power generation efficiency caused by faults that are difficult to detect in a localized manner over a long period; and it does not require additional device costs.

Provided is a fuel cell that is laminated via a separator to constitute a fuel cell stack. The fuel cell includes an anode layer, a solid electrolyte layer, and a cathode layer laminated in this order on a metal support on the separator. The metal support and the anode layer are made of a porous metal, and a reforming catalyst is formed inside at least one of the metal support and the anode layer. A thermal conduction inhibiting layer is formed between the metal support and the separator, the thermal conduction inhibiting layer being joined to the separator at least at a portion where the fuel cell and the separator are joined to each other and inhibiting thermal conduction from the separator to the metal support.

The invention relates to a multifunctional ecological enclosure for lake submerged vegetation restoration, and relates to the technical field of vegetation ecological restoration, the enclosure comprises a first hollow rod and a second hollow rod which are vertically inserted in a peripheral water body of an enclosure object, and an enclosure net connected to the side, away from the enclosure object, of the first hollow rod and the second hollow rod, and the enclosure net is circumferentially arranged around the enclosure object; the light supplementing mechanism is connected between the first hollow rod and the second hollow rod and close to the bottom face side of the water body, and the light emitting face of the light supplementing mechanism horizontally emits light towards submerged vegetation in the peripheral water area of the enclosure object. The scouring turbulent flow mechanism is arranged between the first hollow rod and the light supplementing mechanism, water is pumped from the upper layer of the periphery and sprayed to the light emitting face from bottom to top, and turbulent flow is formed between the light emitting face and the submerged vegetation. Through the structure, favorable illumination can be provided for submerged vegetation, algae attachment and impurity deposition are inhibited, meanwhile, the thickness of a leaf boundary layer is improved, water body substance exchange is promoted, and the photosynthesis efficiency and the growth environment stability are improved.