34results about How to "Improve the efficiency of photovoltaic power generation" patented technology

The invention provides a method and device for improving the photovoltaic power generation efficiency of a crystalline silicon battery module. Waste heat generated by the back face of the crystalline silicon battery module in work is absorbed through a semiconductor thermoelectric power generation system to generate electric energy, and the electric energy is directly connected into a power grid to be used by electric equipment. The device for improving the photovoltaic power generation efficiency of the crystalline silicon battery module comprises the crystalline silicon solar battery module, a heat conduction strip, a semiconductor thermoelectric power generation module, a cooling fin set, a fan, a storage battery and wires. With the method and device for improving the photovoltaic power generation efficiency of the crystalline silicon battery module, waste heat generated by the back face of the crystalline silicon solar battery module can be effectively removed when the crystalline silicon solar battery module is used in a high-level solar radiation area, the photovoltaic conversion efficiency of the crystalline silicon battery module is improved, utilization of the waste heat for power generation is achieved, air pollution is reduced, and the energy conservation and environment protection functions are achieved.

The invention relates to a solar dual condensing photovoltaic and photo-thermal integrated power generation system. The system comprises a dual condensing photovoltaic generator component, a dual condensing photo-thermal power generation device and a grid-connected inverter, wherein the dual condensing photovoltaic generator component comprises a single or multiple dual condensing photovoltaic generators or photovoltaic cell panels combined in parallel to output generated power; the dual condensing photo-thermal power generation device comprises a dual condensing heat collector component, an engine, a generator, a working medium condenser, a working medium storage tank and a working medium pressure pump; the dual condensing photovoltaic generator is connected with the dual condensing heat collector through a working medium control valve. According to the provided solar dual condensing photovoltaic and photo-thermal integrated power generation system, the problem of scatter of solar energy utilization can be solved, the solar photovoltaic conversion efficiency can be comprehensively improved, the high efficiency and the stability of the solar power generation system can be maintained, the using amounts of a photoelectric silicon material and a non-silicon material can be greatly reduced, and the cost of solar power generation can be effectively reduced.

The invention relates to a novel solar refrigerator comprising a refrigerator body, a solar photovoltaic power supply device, a direct-current inverter compressor, a first condenser, a capillary tube, a first evaporator, an adsorption bed, a second condenser, a control valve, a liquid storage tank and a second evaporator, wherein the solar photovoltaic power supply device comprises a photovoltaic cell and a controller; the photovoltaic cell is covered with a spectrum selective composite layer formed by combining a selective reflecting film and a selective emitting film; the photovoltaic cell and the adsorption bed form a combined adsorption bed. The novel solar refrigerator has the following advantages that photovoltaic-thermal comprehensive utilization is achieved by means of integration of a solar flat-plate adsorption refrigeration system and a solar photovoltaic direct-current refrigeration system, and the refrigeration efficiency of the adsorption refrigeration system is further improved by means of the radiation refrigeration technology; in addition, high photovoltaic power generation can be achieved by using a cheap amorphous silicon photovoltaic cell, and the overall efficiency of the solar refrigerator is remarkably improved.

The invention relates to a wall-mounted rotary vane type solar photovoltaic power generation system. According to the principle, by means of fixing and supporting ability of a steel structure and photovoltaic power generation ability of solar modules, the outer wall surfaces of a sunny slope window and balcony of a building are provided with solar module arrays in an erected mode to form the photovoltaic power generation system. The wall-mounted rotary vane type solar photovoltaic power generation system is characterized in that a steel wall-mounted fixing structure fixed on the sunny slope wall of the building is used as a main support, a plurality of vane-shaped solar modules which can horizontally rotate are arranged on the main support in an erected mode side by side to form the photovoltaic arrays, the solar module arrays have the special rotating function by means of rotary pull rods and other auxiliary structures, and the solar module arrays and corollary equipment like current control boxes and storage batteries which are arranged on nearby suitable positions constitute the wall-mounted rotary vane type solar photovoltaic power generation system together. The wall-mounted rotary vane type solar photovoltaic power generation system further expands ways for new energy development and use of distributed photovoltaic power generation, and provides a novel method which is simple in structure, scientific and reasonable for sunny slope windows and balconies of multi-story and high-rise buildings.

The invention relates to an intelligent solar conjunction box in the field of solar technology. The conjunction box comprises a conjunction box body and a conjunction box cover match covers the conjunction box body in pair, an accommodation cavity is formed between the conjunction box body and the conjunction box cover, and internally provided with a master control circuit board, the front end of the master control circuit board is welded to four binding posts, a first terminal and a second terminal are respectively welded at the two sides of the rear end of the master control circuit board, the master control circuit board comprises a master control chip, a thermosensitive sensor, a voltage sensor and a current sensor, and the master control chip is mounted between a first joint and a second joint. The master control circuit board is additionally arranged to monitor the temperature, voltage and current of a solar cell panel in real time; and thus, defects and hidden safety hazard in a system can be found in shortest time, faults can be rapidly eliminated, power of the solar cell panel in different complex climate environments can be output in an optimized manner, the total photovoltaic power generation efficiency of the solar cell panel is improved, and the power generation cost is reduced.

The invention relates to a dual-system solar energy refrigerator which comprises a refrigerator body, a solar photovoltaic power unit, a direct current frequency conversion compressor, a first condenser, a capillary tube, a first evaporator, an adsorbent bed, a second condenser, a control valve, a fluid reservoir, and a second evaporator, wherein the direct current frequency conversion compressor, the first condenser and the capillary tube are arranged outside the refrigerator body; the first evaporator is arranged in the refrigerator body; the adsorbent bed is directly connected with the second condenser, the fluid reservoir and the second evaporator in sequence through connecting pipelines, the pipeline between the fluid reservoir and the second evaporator is equipped with the control valve, the second evaporator is arranged in the refrigerator body, and the second condenser, the control valve and the fluid reservoir are arranged over the refrigerator body. The solar energy plate type adsorption refrigeration system is integrated with the solar photovoltaic direct current refrigeration system to achieve photovoltaic photo-thermal comprehensive utilization, a low-cost photovoltaic cell can be adopted to achieve the higher efficiency of photovoltaic power generation, and the overall efficiency of the solar energy refrigerator is obviously improved.

The invention relates to the solar photovoltaic technology field of and discloses an intelligent control system of a sun-tracking solar photovoltaic power station. The intelligent control system comprises a photovoltaic power generation module, a hydraulic steering module, a control module, a wind power generation module, a monitoring module and a photovoltaic power generation base. An output endof the photovoltaic power generation module is electrically connected with an input end of an energy conversion module. An output end of the energy conversion module is electrically connected with aninput end of an electric energy storage module. One end of the electric energy storage module is electrically connected with the control module. An output end of the control module is electrically connected with an input end of the wind power generation module. An output end of the wind power generation module is electrically connected with the input end of the electric energy storage module. Theintelligent control system of the sun-tracking solar photovoltaic power station has the wind power generation module and the output end of the wind power generation module is electrically connected with the input end of the electric energy storage module, so when it encounters continuous strong windy and rainy days, the wind power generation module can generate power to supplement the electric energy, thereby avoiding the phenomenon of insufficient power supply.

The invention provides a method for sun screening, heat shielding and cooling of negative pressure adsorption coverings. The method comprises the following steps that: the coverings are arranged on the surface of articles including roofing, facades, or the indoor side of the facade glass and the inside of double-layer glass, and are adsorbed on the surface of the article for sun screening, heat shielding and cooling. The device for sun screening, heat shielding and cooling of negative pressure adsorption coverings, which is prepared by the method, consists of a covering and a negative pressure source, and is characterized in that an exhaust passage is arranged between a closed space formed between the surface of the article and the covering and the negative pressure source. The device has the advantages of convenient negative pressure adsorption operation of the coverings, little noise, good sun screening, heat shielding and cooling effects, and wide adaptability; the coverings with selective spectral characteristics can reduce indoor ultraviolet rays and heat energy and provide natural lighting and enjoyment of wide vision of glass curtain wall; and under a light intensity of 600w/m<2>, when the coverings are used for the single-layer glass, the indoor heat energy can be reduced by 6.9 times or 505.5w/m<2>. Two embodiments are shown with the figures.

The invention discloses a winding device for a greenhouse heat preservation quilt. The winding device includes a greenhouse body, a driving motor, the heat preservation quilt, connecting rods, a powergenerator and electric pushing rods; the greenhouse body includes arc-shaped fixing frames, a winding box, a driving box, a controller and connection bases; a winding shaft penetrates through and extends into the winding box; the heat preservation quilt is arranged on the surface of the winding shaft, first solar photovoltaic plates are arranged in the middle of the top of the winding box, and the power generator includes a mounting plate; a retractable casing rod is movably connected to the surface of each connection base through a movable shaft, an angle sensor is arranged on one side of each retractable casing rod, the connecting rods are arranged at the ends, away from the connection bases, of the retractable casing rods, and the upper and lower ends of the heat preservation quilt areconnected with the winding shaft and the connecting rods respectively. The winding device has the advantages that vegetation absorbs the sunlight conveniently and the heat preservation quilt can be wound and replaced in time. The problem that heat preservation thin film of traditional greenhouses is inconvenient to replace and wind is solved.

The invention discloses a comprehensive solar photovoltaic power generation and salt preparation system and aims at providing a salt preparation system which can utilize solar concentrating for powergeneration, prepare salt, achieves comprehensive utilization of solar energy and increase an energy utilization rate. A chimney and a transparent heat collection shed are arranged on a salt pan; a condensation heat exchange device is arranged on the chimney; a light condensation photovoltaic system is arranged below the transparent heat collection shed and comprises a plurality of light condensation modules, light condensation photovoltaic batteries, battery cooling pipelines and brackets; the back surfaces of the light condensation photovoltaic batteries are clung to the battery cooling pipelines; the front surfaces of the light condensation photovoltaic batteries are in contact with air; the battery cooling pipelines, overground heat exchange pipes, underground heat exchange pipes and circulating pumps are sequentially connected to form enclosed cooling and heat exchange circulation pipelines; and a heat collection shed inlet is formed between the edge of the transparent heat collection shed and the salt pan. The photovoltaic power generation efficiency of the system is greatly improved; at the same time, the evaporation of water in the salt pan is intensified; and a salt preparation effect of the salt pan is improved.

The invention discloses an optical power storage and charging system of an electric automobile. The system includes two or more stand boards. The bottom end of each stand board is welded with a standpost. One among the stand post is equipped with a second power distribution cabinet. Charging piles are mounted between adjacent stand posts. Top boards are welded between top ends of the stand boardsand a cross shaft is inserted between the two or more stand boards. According to the invention, a telescopic post is welded to an end pipe so as to enable the sleeving connection of a sleeve pipe onthe top end of a top ceiling and the cross shaft, so that the inclination angle of the top ceiling can be adjusted through adjusting the height of the telescopic post and full utilization of sunlightby a photovoltaic panel can be realized and an aim of improving photovoltaic power generation efficiency is improved. Besides, since the inclination angle of the photovoltaic board is adjustable, snowor other stuff accumulated on the surface of the photovoltaic panel can be cleaned conveniently, accumulation of stuff on the surface of the photovoltaic panel can be prevented and the service lifetime of the photovoltaic panel can be prolonged. At the same time, the system is stable in charging and good in energy conservation effect.

The invention relates to an efficiently-charged solar car applicable to severe cold area. The efficiently-charged solar car applicable to severe cold area comprises a main body, a power generation mechanism and four vehicle wheels, wherein an antenna, a PLC and a heating mechanism are arranged in the main body; the power generation mechanism comprises a border, a photovoltaic panel, a heating boxand two protection assemblies; each protection assembly comprises a protection plate and two moving units; the heating mechanism comprises a gas inlet port, an engine, a heating pipe, a gas guide boxand a gas exhaust pipe; a fan is arranged in the gas guide box; and a vibration assembly and a filter cotton are arranged in the gas inlet port. According to the efficiently-charged solar car applicable to severe cold area, the temperature of the photovoltaic panel is increased by virtue of the heating mechanism, so that the photovoltaic power generation of the photovoltaic panel is increased, rapid charging for the car is facilitated, and the cruising ability is enhanced; and in addition, in rain weather, in the power generation mechanism, the two protection plates are close to each other andcover the border, and the photovoltaic panel is prevented from being corroded and damaged due to the impact of rainwater, and protected, so that the practicability of the solar car is improved.

The invention discloses a solar frequency-division combined power generation device. The solar frequency-division combined power generation device comprises a semi-transparent perovskite solar cell, a Fresnel lens, a condensation reflection mirror and an inorganic solar cell, wherein electric conduction silica gel is arranged on a lower surface of the semi-transparent perovskite solar cell by vacuum molding to form the Fresnel lens, sunlight is incident from an upper surface of the semi-transparent perovskite solar cell, solar spectrum of 300-800 nanometers is absorbed in the semi-transparent perovskite solar cell, and solar spectrum of 800-2,500 nanometers will be condensed on the inorganic solar cell by the condensation reflection mirror. By the solar frequency-division combined power generation device, the photovoltaic power generation efficiency of the semi-transparent perovskite solar cell is effectively improved, the light spot distribution uniformity is improved by the condensation reflection mirror, the efficiency of the inorganic solar cell is improved, and the inorganic solar cell is prevented from being damaged due to an overheat point.

The invention relates to the field of comprehensive utilization of solar energy, in particular to a photoelectric and photo-thermal integrated system which comprises a photovoltaic power generation system and a photo-thermal energy recovery system. The photoelectric and photo-thermal integrated system is provided with a photoelectric and photo-thermal integrated assembly, wherein the assembly comprises tempered glass, transparent EVA, a photovoltaic power generation body, a heat absorption backboard and an outer frame; and a working medium flow channel is arranged in the heat absorption back plate and is used for absorbing heat and cooling the photovoltaic power generation main body through utilizing a working medium in the working medium flow channel and exchanging heat with the outside. The photo-thermal energy recovery system absorbs heat through the heat absorption back plate and cools the photovoltaic power generation main body. By integrating photovoltaic power generation and photo-thermal energy recovery in one assembly, and arranging the working medium flow channel in the heat absorption back plate, a photovoltaic power generation main body is cooled by using the working medium, so that the photovoltaic power generation efficiency is improved, and the photovoltaic power generation main body works under the working condition of lower temperature through cooling of the working medium in the heat absorption back plate, and therefore, the service life of the photovoltaic power generation main body is prolonged.

The invention belongs to the technical field of charging piles, and particularly relates to a vehicle-mounted solar charging pile. Comprising a pile body, a base, a motor, a solar panel and a storage battery, and further comprises a transmission assembly and two first protective covers, the transmission assembly is located in the pile body and close to the motor, the first protective covers are fixedly connected with the pile body, and the first protective covers are semicircular; the second protective cover is located between the two first protective covers, and the second protective cover is semicircular; solar power generation and the charging pile are combined, the transmission assembly outputs power to adjust the solar panel to promote the solar panel to absorb light energy so as to charge the storage battery, and the second protective cover is adjusted to achieve the purpose of protecting the solar panel from being damaged.