39results about How to "Ensure power generation efficiency" patented technology

The invention relates to the technical field of cleaning equipment and provides a solar cell panel cleaning system. The solar cell panel cleaning system comprises a transparent protective plate, a light intensity detection device, a controller, a cleaning device and a braking device. The automatic solar cell panel cleaning system can timely detect the dirt degree of the surface of the transparent protective plate on a solar cell panel and automatically clean the surface of the transparent protective plate and effectively ensures power generation efficiency of the solar cell panel; moreover, the whole cleaning process does not need human intervention, and thus maintenance risk and maintenance cost are greatly reduced.

An object of the present invention is to provide a fuel cell system capable of starting below freezing point without increasing the size of the diluter. The fuel cell system 1 comprises an OCV purge execution unit 42 replacing gas retained in a fuel cell 10 by supplying additional anode gas from a supply device 20 to the fuel cell 10 when starting up the fuel cell. In addition, the fuel cell system 1 comprises a low temperature startup determination unit 41 determining whether to perform low temperature startup or normal startup on the fuel cell 10. The OCV purge execution unit 42 decreases the pressure of additional anode gas supplied from the supply device 20 and increases the total replacing amount of gas retained in the fuel cell 10 in a case of performing low temperature startup, as compared with a case of performing normal startup.

The present invention discloses a PV module internal protection circuit structure with a single power generation unit, comprising a plurality of solar cells, a plurality of solar cells combined to form a power generation unit A and a power generation unit B; The positive polarity, the negative polarity, the positive polarity, the negative polarity, the positive polarity and the negative polarity;the polarity of the battery strings in columns B to B is negative, negative, positive, negative, positive and negative in sequence, and the bus bar has three split wires box. The invention can effectively improve the output power and the power generation efficiency of the half-chip component and reduce the procurement cost of the component packaging material, so as to greatly enhance the actual power generation of the component system end and effectively reduce the electricity cost. In addition, because the number of the divided power generation cells increases, The probability of failure willbe greatly reduced during the test, especially the temperature-related testing is less likely to fail than the conventional half-chip design and is worth promoting.

The invention discloses a water quality monitoring device and a water quality real-time monitoring system. The water quality monitoring device comprises a floating device, a monitoring device and a power supply device, wherein the floating device comprises a floating platform, and an outer-layer filtering structure is arranged at the bottom of the floating platform; the monitoring device comprisesan equipment box, an inner-layer filtering structure is arranged at the bottom of the equipment box, and the inner-layer filtering structure penetrates through the through hole and is located in theouter-layer filtering structure; a collection box detachably connected to the bottom of the equipment box is arranged in the equipment box, a collection module, a wireless communication module and a plurality of water quality detection sensors are arranged in the collection box, and probes of the water quality detection sensors are fixed in the inner-layer filtering structure; the power supply device comprises a solar cell panel, a solar charging module, water power turbine fan blades, a water power turbine charging module and a storage battery. On the basis of realizing remote real-time waterquality monitoring, the power supply stability of the system is improved, the structure is improved to facilitate disassembly and assembly, and thus the maintenance difficulty is reduced.

The invention discloses a solar cell module and a packaging method. The solar cell module comprises a solar cell and a flexible conductive welding strip connected with the solar cell, wherein a reinforcing hoop is arranged outside the solar cell; a reinforcing patch is arranged on the back of the solar cell; the reinforcing patch is connected with the reinforcing hoop through a plurality of spaced elastic connectors; an elastic film is packaged on each of the upper and lower surfaces of the reinforcing hoop, wherein the elastic film positioned on the upper surface of the reinforcing hoop is a transparent film; and a packaging gas of which the pressure is 1 to 5 bar is filled between the upper and lower elastic films. Compared with the prior art, the solar cell module has the advantages that the solar cell is connected with the reinforcing hoop through the elastic connectors, so that the structure of the solar cell module is simplified; and a combination mode of the reinforcing hoop and the elastic films is adopted, and the elastic films are supported by the reinforcing hoop and can buffer probable impact of an external force on the solar cell, so that normal work of the solar cell is protected.

A fuel cell system includes a fuel cell having a stack composed of stacked cells that generate electrical power from anode gas and cathode gas; a cell voltage measuring device connected to the cells to measure the voltages of the cells, the cell voltage measuring device outputting a first predetermined value as a measurement value when the voltage of the cell being measured is at or below a detection limit; a stack voltage measuring device connected to the stack that measures the voltage of the stack; and a control unit that restricts the current flowing though the fuel cell when the difference between the sum of the individual voltages of the cells measured by the cell voltage measuring device and the voltage of the stack measured by the stack voltage measuring device exceeds a second predetermined value.

The invention discloses a wind-sand-proof solar photovoltaic fixing support, which comprises a base and a solar photovoltaic panel, the upper end of the base is fixedly connected with a support plate, the solar photovoltaic panel is fixedly connected to the upper end of the support plate, the base is provided with a mounting mechanism, the upper end of the mounting mechanism is fixedly connected with an annular transparent sand-proof cover, a clamping groove is formed in the side wall of the mounting mechanism, a fixing mechanism extending into the clamping groove is arranged on the base, and a cleaning mechanism opposite to the solar photovoltaic panel is arranged on the inner rear side wall of the annular transparent sand-proof cover. The support is reasonable in structural design, not only can protect the solar photovoltaic panel and relieve the phenomenon that sand and dust are accumulated on the solar photovoltaic panel in seasons with large wind and sand, but also can clean the sand and dust on the solar photovoltaic panel and discharge the sand and dust in the annular transparent sand-proof cover, and the service life and the power generation efficiency of the solar photovoltaic panel are guaranteed.

The invention discloses a small-scale sealing type permanent magnet generator for wind power generation, comprising a casing, a rotor iron core, a stator iron core, a stator winding and a motor shaft. The casing comprises a front casing and a rear casing, and also a heat radiation apparatus and a heat radiation channel. The heat radiation apparatus comprises a radiator and an air guiding sleeve. The heat radiation channel comprises a rotor cooling air channel, a permanent magnet cooling air channel, a stator cooling air channel and a rear casing heat radiation wind channel. Two end faces of the rotor iron core are respectively provided with a non-magnetic material separator plate. The invention is advantageous in that the internal structure of the permanent magnet generator can be fully utilized, heat exchange and heat radiation of heat energy in the permanent magnet generator can be effectively achieved, and thereby the magnetic comprehensive properties, the generating efficiency and quality of the permanent magnet generator can be ensured.

An object of the present invention is to provide a fuel cell system capable of starting below freezing point without increasing the size of the diluter. The fuel cell system 1 comprises an OCV purge execution unit 42 replacing gas retained in a fuel cell 10 by supplying additional anode gas from a supply device 20 to the fuel cell 10 when starting up the fuel cell. In addition, the fuel cell system 1 comprises a low temperature startup determination unit 41 determining whether to perform low temperature startup or normal startup on the fuel cell 10. The OCV purge execution unit 42 decreases the pressure of additional anode gas supplied from the supply device 20 and increases the total replacing amount of gas retained in the fuel cell 10 in a case of performing low temperature startup, as compared with a case of performing normal startup.

The invention discloses a photovoltaic power generation system with a self-cleaning function, including a photovoltaic panel, a water spraying mechanism, a cleaning mechanism and a drive mechanism, the drive mechanism includes a slide rail, slide bars, screws and drive motors, the slide rail includes a first slide rail and a second slide rail, the first slide rail and the second slide rail are respectively located on the left and right sides of the photovoltaic panel, the cleaning mechanism is arranged on the slide bar and the left and right ends of the slide bar are slidably connected with the first slide rail and the second slide rail respectively, one end of the screw rod is connected with the slide rod, the other end is connected to the output of the drive motor, the self-cleaning of the photovoltaic panel is realized through the cooperative work of all the mechanisms, when the dust level reaches the situation of requiring cleaning, the driving motor starts, thereby driving the slide bar to slide up and down, and driving the brush head arranged on the slide bar to clean on the surface of the photovoltaic panel, and the water spraying mechanism cooperates with each other, thereby effectively solving the problem that manual cleaning is inconvenient before, and ensuring the power generation efficiency of the photovoltaic panel.

The invention relates to the technical field of testing devices, in particular to a full-size photovoltaic module IAM testing device and a testing method thereof.The full-size photovoltaic module IAM testing device is provided with a transverse rod, rotating shafts are symmetrically and vertically arranged at the positions, opposite to the ground, of the lower end of the transverse rod, and a bearing penetrates through the joint of one end of each rotating shaft and the transverse rod; the other end of the rotating shaft is fixed on a support, and a photovoltaic assembly is fixed on the support. According to the full-size photovoltaic module IAM test device and the test method thereof, the power generation performance of the full-size photovoltaic module at different angles can be measured, so that a laboratory test result is closer to the actual power generation efficiency of a photovoltaic power station; the power generation efficiency of the photovoltaic module is guaranteed, and the income of the whole photovoltaic power station is improved.

The invention discloses an efficient and intelligent solar power generation apparatus. The apparatus comprises a solar cell panel, a storage battery, a rotating unit and a control unit, wherein the solar cell panel is used for receiving sun shine for performing power generation; the storage battery is connected with the solar cell panel; the rotating unit is used for rotating the solar cell panel; and the control unit is used for presetting conditions for controlling rotating directions and angles of the rotating unit. According to the efficient and intelligent solar power generation apparatus, reasonable design for the apparatus is realized, so that the solar cell panel can fully utilize sun shine, and relatively high power generation efficiency is achieved.

The invention discloses a fuel cell system, relates to the technical field of fuel cells, and aims to effectively improve the whole-process fuel utilization rate of fuel gas and improve the power generation efficiency. The fuel cell system includes a fuel cell assembly; an anode heat exchanger comprising a first port, a second port, a third port and a fourth port, wherein the first port is communicated with the second port, the third port is communicated with the fourth port, the first port is used for passing through of fuel gas, the second port is communicated with the anode gas inlet of thefuel cell assembly, the third port is communicated with the anode gas outlet of a fuel cell, and the fourth port is respectively communicated with the first port through a first shunt pipe and a second shunt pipe; and a decarburization and dehydration device, wherein the inlet end of the decarburization and dehydration device is communicated with the second shunt pipe, and the outlet end of the decarburization and dehydration device is communicated with the first port. The fuel cell system is used for improving the working performance of the cell.

The invention provides a biaxial computer-numerical-control positioning method of solar panels. The method includes the steps: a GPS (global positioning system) provides latitude and longitude of a local and time service data, sunrise time and sunset time of a current day are calculated, a maximum of solar attitude of the current day and running total of azimuth are calculated, the time with the maximum solar attitude is determined as noon time of the current day, changes in the solar attitude and the azimuth per unit of time from the sunrise to the noon time are calculated, single feed of an attitude drive unit and that of an azimuth drive unit are controlled according to the changes, and the solar panels and the sun are synchronously positioned constantly. By the use of the method, high solar panel positioning precision and high power generation efficiency are achieved. The invention further provides a biaxial computer-numerical-control positioning system of solar panels. The system comprises a controller and a positioning actuator. The controller comprises a satellite data receiving unit, a data processing unit and a control signal transceiving unit. The positioning actuator comprises the attitude drive unit and the azimuth drive unit. A group of controllers is applicable to controlling multiple groups of positioning actuators, and configuration cost is low.

A fuel cell system includes a fuel cell having a stack composed of stacked cells that generate electrical power from anode gas and cathode gas; a cell voltage measuring device connected to the cells to measure the voltages of the cells, the cell voltage measuring device outputting a first predetermined value as a measurement value when the voltage of the cell being measured is at or below a detection limit; a stack voltage measuring device connected to the stack that measures the voltage of the stack; and a control unit that restricts the current flowing though the fuel cell when the difference between the sum of the individual voltages of the cells measured by the cell voltage measuring device and the voltage of the stack measured by the stack voltage measuring device exceeds a second predetermined value.

The invention discloses a multi-new energy utilization complex for farmland irrigation areas, which comprises a machine room, a wind power mechanism arranged at the top of the machine room, a tower arranged in the machine room, a generator arranged in the tower, a generator rotating shaft fixedly connected in the generator, two ends of the generator rotating shaft extending out of the generator, and the generator rotating shaft fixedly connected with the wind power mechanism. A hydroelectric generation mechanism is arranged at the bottom of the tower and fixedly connected with a rotating shaft of the generator, an electricity storage mechanism is fixedly connected to the top of the tower and electrically connected with the generator, a water storage mechanism is arranged on one side of the machine room and extends into the machine room, and a photovoltaic mechanism is arranged at the top of the water storage mechanism and electrically connected with the electricity storage mechanism. According to the invention, the condition that no overhigh building shields sunlight and wind power in a large-area farmland area is fully utilized, wind-solar complementary power generation is realized, and power generation can be realized under any weather condition.

The invention discloses a platform spiral type wave power generation device which comprises a water platform, a main machine room, a cylinder, an auxiliary machine room, a mooring rope, an underwater platform and third rolling wheel devices. The mooring rope and a floater pass through a first fixed pulley on the water platform and the underwater platform; the two third rolling wheel devices, two fourth rolling wheel devices and the common supporting cylinder are installed on the water platform; the left end of a rotating rod on the right side of the main machine room penetrates through the interior of the main machine room; a ratchet wheel is fixedly arranged on the rotating rod; a spiral cavity-shaped guide rail matched with a spiral piece is formed in the cylinder; the spiral piece and the spiral cavity-shaped guide rail are connected in a meshing mode; the right end of a rotating rod on the right side of the auxiliary machine room penetrates through the interior of the auxiliary machine room; and a ratchet wheel is fixedly arranged on the rotating rod. According to the platform spiral type wave power generation device, the power generation efficiency is guaranteed, the utilization rate of wave energy is high, and the overall stability during working can be guaranteed.

The invention relates to a multi-energy complementary microgrid system which comprises an electric bus, a cooling bus, power generation equipment, refrigeration equipment and energy storage equipment.And the electric bus is connected with an external power grid. The power generation equipment is connected with the electric bus. And the refrigeration equipment is connected with the electric bus and the cooling bus respectively. The power generation equipment supplies electric energy to the refrigeration equipment. And the energy storage equipment is respectively connected with the electric busand the cooling bus. The power generation equipment supplies power to the energy storage equipment. The system has the advantages of being high in energy gradient utilization efficiency, reliable inelectric energy supply, good in economic benefit, environmentally friendly and the like. Power generation equipment, refrigeration equipment, energy storage equipment and the like are combined, and anexternal power grid is accessed in a micro-grid form, internal load fluctuation can be effectively adjusted, the electrical load in the peak period of a power grid is reduced, and the increasingly increased contradiction between peak and valley loads of a power system is relieved. The problem that the annual effective utilization time of power equipment is continuously shortened is solved, the electrical safety and the stability of the power grid are improved, and the power generation efficiency and economic benefits are powerfully guaranteed.

The invention discloses a novel hydroelectric generation device. The novel hydroelectric generation device comprises a water collecting hopper and a device body. A filter screen is arranged in the water collecting hopper. A first safety protective valve is arranged in the water collecting hopper. A support is arranged at the bottom of the water collecting hopper. The device body is arranged on oneside of the water collecting hopper. The water collecting hopper is arranged in the device body in a penetrating mode. A top cover is arranged at the top of the device body. A partition plate is arranged in the device body. A water outlet is formed in the bottom of the device body. According to the novel hydroelectric generation device, lots of through holes are formed in the bottom of a base, the device body communicates with the outside through the through holes, after the device is used for a long time, lots of sediment may settle in the device body, by arranging the through holes, sediment settlement is not liable to occur, thus, the electric generation efficiency of the device can still be ensured after long-time application, and the device has a good market at present through the unique designs.

The invention discloses a photovoltaic panel safety detection and life evaluation system, which mainly comprises a photovoltaic panel, a temperature sensor, an ammeter, a voltmeter and a controller, wherein the number of the temperature sensor is at least one, the temperature sensor is arranged on the back surface of the photovoltaic panel, and is in contact and installed with a photoelectric conversion material; the ammeter and the voltmeter are installed on power supply output terminals of the photovoltaic panel separately; the temperature sensor, the ammeter and the voltmeter are connected with the controller separately; the controller continuously receives temperature signals of the temperature sensor, selects the highest temperature and compares the highest temperature with a fixed threshold value; and the controller continuously receives current and voltage signals of the ammeter and the voltmeter, and calculates output power of the photovoltaic panel. The photovoltaic panel safety detection and life evaluation system gives comprehensive consideration to operating temperature parameters, power generation power parameters and external environmental parameters of the photoelectric conversion material of the photovoltaic panel, so as to evaluate the operating life of the photovoltaic panel precisely and prompt the staff to replace it timely, facilitates the equipment maintenance of large-scale photovoltaic power plants, reduces maintenance cost, and ensures power generation efficiency.

The invention relates to a flag light energy lamp with functions of resisting strong wind, preventing sand dust, preventing mud rain, preventing bird dung, preventing snow and resisting hail. The flag light energy lamp comprises an installation frame, a connection column, photovoltaic panels, an illumination lamp and an electric storage device. The installation frame is vertically arranged. The multiple photovoltaic panels which are extended in the horizontal direction and are in a rectangular shape are fixedly assembled in the installation frame. Transparent partition plates are sealed to the installation frame and located on the two sides of the photovoltaic panels. The bottom end of the connection column can be provided with a connection sleeve in a fixed-axis rotation mode. A first convex block is fixedly arranged on the outer side wall of the connection column. A second convex block is fixedly arranged on the inner side wall of the connection sleeve. The left and right sides of the first convex block and the second convex block are provided with elastic reset parts correspondingly. The elastic reset parts are used for promoting the first convex block to be reset after being rotated in a fixed-axis mode in the left-right direction. According to the photovoltaic power generation device, strong wind can be resisted, production requirements are lowered, the production cost and the using cost are reduced, the functions of preventing dust, preventing snow and resisting hail are achieved, the power generation efficiency is ensured, and the service life is effectively prolonged.

The invention discloses a photovoltaic power generation panel which comprises a bottom frame and a photovoltaic power generation panel body arranged on the bottom frame and further comprises a water storage module, a dust removal module and a linkage module, and the water storage module comprises a support, a warping plate rotationally connected to the support, a balance weight part connected to the warping plate and a water storage tank arranged on the warping plate; the water storage tank is located at the end, close to the photovoltaic power generation panel body, of the support, a tank opening of the water storage tank faces upwards, and the balance weight is located on the side, away from the photovoltaic power generation panel body, of the support. The dust removal module comprises a dust removal brush slidably arranged on the photovoltaic power generation panel body and a moving assembly, and the dust removal brush comprises a brush head; the linkage module is used for enabling the warping plate to be in linkage connection with the moving assembly; when the water storage tank is full of water, the end, close to the photovoltaic power generation panel body, of the warping plate rotates downwards, and the warping plate drives the dust removal brush to move through the linkage module and the moving assembly. The photovoltaic power generation panel has the effect of guaranteeing the power generation efficiency of the photovoltaic power generation panel.

The invention provides a method and device for identifying a pitch angle consistency deviation based on blade load. The method comprises the following steps: separately measuring strain values of three blades of a wind turbine generator based on a strain sensor; calculating blade root shimmy bending moment and blade root waving bending moment of each blade according to the strain value of each blade; calculating resultant bending moment of the blade based on the blade root shimmy bending moment and the blade root waving bending moment of each blade; carrying out filtering processing on the resultant bending moment of each blade to obtain a direct current component approximate value of the resultant bending moment of each blade; and calculating the maximum difference value between the direct-current component approximate values of the resultant bending moment of the three blades, and if the maximum difference value is continuously greater than a set threshold value within preset time, judging that the pitch angle consistency deviation exists among the three blades. By applying sensing equipment and monitoring the blade root load, the consistency difference of the pitch angles between the blades of the wind turbine generator is effectively and automatically identified, the situation that the generator runs in an off-design condition for a long time is avoided, and the load safety and the power generation efficiency of the generator are guaranteed.

The invention relates to the field of photovoltaic intelligent power generation, and particularly discloses a double-sided double-glass photovoltaic panel adjusting bracket and an adjusting method. A deep learning technology based on a convolutional neural network is used; the dynamic change characteristics of each photovoltaic panel in a time dimension are mined from angle data and generated power data of each photovoltaic panel in a photovoltaic array in a predetermined time period. And the accuracy of the angle adjustment result of the photovoltaic panel is further improved by using the response relationship between the angle and the generated power, so that the power generation efficiency of the photovoltaic power generation system is guaranteed by adjusting the angle of the photovoltaic panel based on the globally optimal angle.

The invention provides an anti-freezing deicing device and method for the blades of a wind driven generator. The anti-freezing deicing device comprises a plurality of condensation reflection lenses installed at the bottom of a wind driven generator tower drum in a circumferential mode, and reflected light of each condensation reflection lens is incident to a rotating plane of the blades. The device solves the problem of blade freezing, so that the reliability of a wind generating set is improved, non-quality shutdown caused by deicing is avoided, and the power generation efficiency of a wind driven generator is effectively guaranteed.

A thermoelectric power generator includes: a pipe in which a first fluid flows; a power generation module including a thermoelectric conversion element; and a holding member that is in contact with a one side part of the power generation module, such that heat of a second fluid that is higher in temperature than the first fluid transfers to the one side part of the power generation module. The holding member holds the power generation module and the pipe in a heat transferable state, such that the pipe is in contact with the other side part of the power generation module. The thermoelectric power generator includes a heat conductive component interposed between the holding member and the pipe to define a heat transfer course through which heat transfers from the second fluid to the first fluid, at downstream of the power generation module in a flowing direction of the second fluid.

The invention discloses an array type wind power generation device based on illumination heating and earth surface wind convergence, and relates to the technical field of wind driven generators. The array type wind power generation device comprises an outer cover shell and a generator group in the outer cover shell, wherein the driving end of the generator group is connected with power generation fan blades, and an illumination barrel is arranged at the circle center of the top of a top cover; a plurality of wind direction monitors which are circumferentially distributed at equal intervals are arranged in the top cover, a wind guide plate is installed at the bottom of the top cover and located under the illumination barrel, an inwards-sunken wind guide arc face is arranged on the outer surface of the wind guide plate, a cross beam plate is installed at the upper end of the illumination barrel, and a driving motor is installed at the bottom of the cross beam plate; the output end of the driving motor is connected with a spiral blade, the generator group is installed in an array mode, earth surface wind can be fully utilized; the spiral blade and the wind guide plate are arranged, so that the wind speed in the illumination barrel can be increased, external wind is promoted to flow along the wind guide arc face and directly blow to the power generation fan blades, and therefore, the rotating speed of the power generation fan blades is increased, and the power generation efficiency is improved.

The invention discloses an electric energy management system for a wind-driven generator set and relates to the technical field of power management. The electric energy management system comprises a central processing unit which is bidirectionally electrically connected with a display screen and a storage module. The electric energy management system has the advantages that by the joint effect ofa first wind-driven generator, a second wind-driven generator, a third wind-driven generator, a first electric quantity sensor, a second electric quantity sensor, a third electric quantity sensor, a first signal emission module, a first signal receiving module, the central processing unit, a comparison module, a feedback module, a control node and an alarm module, automatic alarming of wind-drivengenerator set faults is achieved, electric energy management staff can timely discover the faults and accurately learn about the working state of each unit in the wind-driven generator set, and the power generation efficiency of the wind-driven generator set is guaranteed.

The invention discloses a solar external sunshade device, comprising a metal barrel, vertically-arranged metal groove strips are welded at the two ends of the side wall of the metal barrel, the two metal groove strips are tangent to the cylindrical surface of the metal barrel, one ends of the two metal groove strips are welded with the same transverse strip, an electric roller is fixed to the inner wall of the metal barrel through bolts, a sunshade curtain is wound around the side wall of the electric roller, a rectangular hole is formed in the side wall of the metal barrel, sliding blocks arearranged on the inner walls of the two metal groove strips in a sliding mode, the same metal strip is fixed to the side walls of the two sliding blocks through bolts, and one end of the sunshade curtain penetrates through the rectangular hole and is clamped to one side of the side wall of the metal strip. According to the solar external sunshade device, the metal strips can conveniently move in the directions of the metal groove strips, the sunshade curtain can be conveniently rolled and unfolded, dust on the surface of the sunshade curtain can be conveniently scraped off through a brush strip, the cleaning and maintaining difficulty is reduced, and the power generation efficiency of an arc-shaped solar power generation panel is guaranteed.