370results about How to "Guaranteed power generation efficiency" patented technology

The invention discloses a system and a method for controlling an online type photovoltaic power generation microgrid without a storage device. The system comprises a photovoltaic component, a power controller, a grid-connected inverter system, a current detection device and a reverse-power protector, the photovoltaic component is connected with the grid-connected inverter system through the power controller, output of the grid-connected inverter system and grid current are connected to simultaneously supply power to load, the power controller enables a photovoltaic power generation system to be in a variable power output state and dynamically adjusts output power of the photovoltaic power generation system according to changes of the load, the current detection device detects magnitude and phase position of the grid current as current feedback control signals of the grid-connected inverter system, and the reverse-power protector is positioned between the microgrid and an outer grid to stop the microgrid from transmitting current to the outer grid. The system is free of a storage battery energy storage system, the outer grid is only a supplement when the microgrid is in power shortage, and power transmission to the outer grid is effectively avoided, so that effects of electricity saving can be realized without upgrading power transmission networks and power distribution networks, and popularization is facilitated.

The invention provides a reservoir optimal dispatching method coupling long, medium and short term runoff forecasting information. The method comprises the following steps: 1) analyzing and describing the randomness and the forecasting uncertainty of runoff; 2) constructing a reservoir optimal dispatching model coupling long, medium and short term runoff forecasting information, and determining a target function, a constraint condition and a recurrence equation of the reservoir optimal dispatching model; and 3) solving the constructed reservoir optimal dispatching model in combination with the recurrence equation. The method has the advantages that the runoff forecasting information of long, medium and short forecasting periods is coupled to hydropower dispatching, so that the uncertainty description is more reasonable, the treatment mode of forecasting the runoff is more effective, the use efficiency of uncertain information in reservoir dispatching can be improved, and the power generation benefit of a reservoir and the stability of a system are ensured.

The invention discloses a heat tube type photovoltaic photo-thermal member which comprises a glass cover plate, solar battery pieces, a packaging material TPT, a solar spectrum selective absorption coating, a tube plate type heat absorption plate, a heat insulation layer and an outer section frame, wherein the solar battery pieces are in series connection and parallel connection in rows, and the solar spectrum selective absorption coating is used for absorbing the infrared wave band of the solar spectrum; the glass cover plate, the solar battery pieces, the TPT packaging material and the solar spectrum selective absorption coating are sequentially laminated and attached from top to bottom; the tube plate type heat absorption plate is mainly formed by a plate body and a heat collection tube arranged on the lower surface of the plate body, the cross section of the heat collection tube is of a downwards protruding arc shape; the upper surface of the plate body is fixed on the lower surface of the solar spectrum selective absorption coating to form a strong platy body; the heat insulation layer covers the lower surface of the tube plate type heat absorption plate and is supported by a base plate, and the heat insulation layer and the strong platy body are jointly fixed in the outer section frame. By the adoption of the heat tube type photovoltaic photo-thermal member, an air interlayer is decreased, and therefore heat conversion efficiency is enhanced; in addition, because the heat collection tube is of the arc shape, the contact area can be enlarged, pressure-bearing can be enhanced, and it can be guaranteed that the member runs stably for a long time.

The invention relates to household solar power generation equipment based on the internet of things. The household solar power generation equipment comprises a base, a supporting mechanism, a holding plate, a supporting column and a power generation device. The supporting mechanism comprises multiple supporting units including an air pump, an air pipe, an air cylinder, a piston and a supporting rod. The power generation device comprises a solar panel, a driving unit, a cleaning block and two translation units. Each translation unit comprises a side plate, a first driving motor, a first connecting rod, a second connecting rod, a slide rod and a slide block. The driving unit comprises a second driving motor, a buffer block and a second driving shaft. According to the household solar power generation equipment based on the internet of things, the angle of the supporting rod is changed through all the supporting units, and the position of the holding plate is enabled to rise so that the solar panel is ensured to receive light and the power generation effect can be realized; besides, the cleaning block is enabled to move on the plane direction of the solar panel through the driving unit and the translation units, and the foreign matters on the solar panel are removed through cooperation of a cleaning mechanism so as to guarantee the power generation efficiency of the power generation device and enhance the practicality of the equipment.

The invention discloses a thermal power generation system and method with fused salt energy storage, power supply and heat supply functions. By arranging a bypass steam pipeline, a high-pressure condenser and a molten salt heater, excess steam heat energy generated by the load change of a power grid can be stored though molten salt. When the peak load of the power grid is reached, a molten salt energy storage power generation subsystem can participate in peak regulation of power supply of the power grid. In this way, the problems of peak regulation of the power grid, low utilization rate of power equipment and the like are solved, it is guaranteed that the power generation efficiency of the power generation system is equal to that of an existing thermal power generating unit, and the thermal power generation system and method have the outstanding advantages that energy storage and variable-load power supply are achieved, and high-efficiency power generation is guaranteed.

The present invention provides an assembly type solar photovoltaic power generation road surface module and application thereof. The module comprises at least the following structures from bottom to top: an insulated sealing layer, a solar photovoltaic panel layer, and a transparent anti-slide wearing layer. The module is mainly used for solar photovoltaic power generation. The assembly type solar photovoltaic power generation road surface module can meet both the road bearing demand and the solar photovoltaic power generation demand, and has a broad market prospect.

The invention relates to a detachable ventilated photovoltaic curtain wall, which comprises a photovoltaic curtain wall body and a photovoltaic matrix control module, wherein the photovoltaic curtain wall body comprises a framework supporting structure, a wall body outer thermal insulation layer and plate blocks; the framework supporting structure comprises a vertical pile, beams, a buried plate, connecting pieces and adjustable bolts; the detachable ventilated photovoltaic curtain wall is characterized in that: the plate blocks comprise ventilated blade plate blocks and photovoltaic plate blocks; the photovoltaic plate blocks comprises a plate block auxiliary frame, a sandwiched glue photovoltaic cell module and a photovoltaic wiring port; the photovoltaic wiring port is connected with a signal transmission port of a photovoltaic controller; a structural air channel which is formed by spaces and in which air flows conveniently is formed between the wall body thermal insulation layer and the plate blocks; and an air outlet and an air inlet are respectively arranged on the upper part and the lower part of the structural air channel. By the invention, the problems of self-heating during power generation of the photovoltaic plate blocks and inconvenience for disassembly, replacement and repair of the photovoltaic plate blocks in the conventional photovoltaic curtain wall are solved, energy is saved, the self-heating of the plate blocks can be eliminated, and the photovoltaic plate blocks are convenient to disassemble, repair and replace.

The invention discloses an air conditioner waste heat and waste energy power generation device, which is arranged in an air conditioner outdoor unit. The air conditioner waste heat and waste energy power generation device comprises a heat exchanger, a temperature difference power generation module assembly, a kinetic energy power generation module assembly and a control device, wherein the heat exchanger comprises condenser pipes and fin cooling plates; the section of each fin cooling plate is of a U shape; each fin cooling plate covers the outside of each condenser pipe of the heat exchanger and is tightly fit to the outer wall of the condenser pipe; the heat exchanger and the temperature difference power generation module assembly are fit; the temperature difference power generation module assembly and the kinetic energy power generation module assembly are respectively connected with the control device to supply power to electric equipment. When an air conditioner works, the temperature difference generated by waste heat in a cold energy pipe is used by the temperature difference power generation module assembly to generate power, waste energy generated by the rotation of a fan is utilized by the kinetic energy power generation module assembly to generate power, converted electric energy can be used for supplying power to the electric equipment by the control device, mains supply consumed by the air conditioner is reduced, waste heat discharge can be effectively reduced, new pollution is not generated, energy is saved, and the environment is protected.

The invention discloses a protective device for electrical equipment, and relates to the technical field of electrical equipment. The protective device comprises a fixed base, a row brush and a springroller shutter, the row brush can slide along lower guide columns arranged on the fixed base, and the spring roller shutter can slide along upper guide columns arranged on the fixed base. A solar panel is cleaned by the row brush arranged on the fixed base in which the solar panel is installed, so that the problem that the generating efficiency is affected due to the fact that the solar panel iscovered with sand, dust and accumulated snow in present is solved. By using the spring roller shutter to cover the solar panel, the problem that the surface of the solar panel is easily damaged by extreme weather such as hail and sand storm is solved. The solar panel is washed by rainwater collected through a water tank, the cleanliness of the surface of the solar panel is further guaranteed, andthe generating efficiency maintains to be maximized.

The invention relates to an intelligent solar street lamp suitable for a desert area and high in power generation efficiency. The intelligent solar street lamp comprises an illumination mechanism, a cooling mechanism and a power generation mechanism. The power generation mechanism comprises a bottom plate, a power generation assembly, a glass cover, a cleaning assembly and two side plates. The cleaning assembly comprises a cleaning unit and two rotating units. The cooling mechanism comprises a gas guide assembly and a cooling assembly. The gas guide assembly comprises a hot gas pipe, a gas guide box and a connecting pipe. The cooling assembly comprises a cooling box, a cold gas pipe and a sealing unit. A plurality of cooling units are arranged in the cooling box. According to the intelligent solar street lamp suitable for the desert area and high in power generation efficiency, by means of the power generation mechanism, a solar panel can work in a closed environment, wind blowing is prevented from influencing steadiness of the structure, meanwhile, the cleaning assembly can be utilized to clean the glass cover, the power generation efficiency is ensured, moreover, the cooling mechanism is used for lowering the air temperature around the power generation assembly, the power generation efficiency of the solar panel is improved better, and then practicality of equipment is improved.

The invention relates to a movable external sunshade with high energy efficiency, relating to a building external sunshade structure capable of lowering energy consumption. The movable external sunshade mainly comprises a bracket, a photovoltaic panel shutter, a motor, a push rod, a control cabinet and the like. The invention has the characteristics of favorable sun shading performance, high energy saving ratio, favorable ventilation performance, simple structure, convenient installation and maintenance and the like, can improve indoor thermal environment and luminous environment, enriches the functions of the sun shading shutter, beautifies the building facade, and embodies the artistic aesthetics effect of modern buildings. The invention can be widely applied to the external window sun shading for various buildings, such as residential buildings, office buildings, teaching buildings, business buildings and the like in different areas, and is an efficient energy-saving movable external sunshade.

The invention provides an intelligent campus safety protection robot. The intelligent campus safety protection robot comprises an alarm device, a pick-up device, a rotating mechanism, a device storagearea, a chassis, a smoke sensor, a temperature sensor, a photosensitive sensor, an infrared night vision camera, a thermal imager, a displayer, a charging hole, a USB connector, a square groove, a sliding way, a fixing pin, a solar cell panel, a plug pin, an electric telescopic rod, moving wheels, an ultrasonic distance measuring sensor, a bumper and a waterproof pad; the moving wheels are arranged on the two sides of the chassis, the ultrasonic distance measuring sensor is arranged at the front end of the upper portion of the chassis, and the bumper is arranged at the front end of the chassis. Due to arrangement of the infrared night vision camera, the thermal imager, the device storage area, the solar cell panel and the ultrasonic distance measuring sensor, intelligent monitoring and alarm capacity can be achieved, safety protection is improved, the durability capacity of the robot is increased, manual patrol can be replaced, and the monitoring capacity which cannot be achieved by manual patrol is achieved.

The invention discloses a low pressure pipeline mounting process used in a 300m<2> sintering low temperature waste heat power generation system. The mounting process comprises the following steps of manufacturing pipes, pipe fittings as well as elbows, supports and hangers in configuration of pipeline accessories; mounting pipeline welding positions in mounting of the pipelines, middle and low pressure pipelines, drain and blow off pipes, valves, flanges, the supports and hangers; assembling welding joints, testing a pipeline system, and cleaning the pipeline system. The process can be suitable for the pipeline paving in the 300m<2> sintering machine low temperature waste heat power generation system by orderly mounting the pipelines, so the power generation efficiency is ensured, and the problem that the existing mounting process cannot meet the pipeline paving demands in the 300m<2> sintering machine low temperature waste heat power generation system.

The invention provides a resin composition for a base material of photovoltaic backboard and a preparation method of a photovoltaic backboard. The resin composition comprises the following components in parts by weight: 40-60 parts of polysilsesquioxane resin, 40-60 parts of epoxy resin, 5-10 parts of curing agent, and 0.01-1 part of accelerant. The photovoltaic backboard takes the resin composition which contains polysilsesquioxane resin, the epoxy resin, the curing agent and the accelerant as the base materials, and takes glass fiber cloth as a reinforcing material, has excellent characteristics of light weight, high strength and good light transmission, and can be used for substituting the existing photovoltaic backboard.

The invention relates to a solar photoelectric photo-thermal building integrated composite plate which comprises a shell 4, a support frame 3, a heat absorber 2, a connection pipe 13, a vacuum glass plate 1, a thermal insulation plate 5, a thermal insulation side plate 11, a color steel bottom plate 6, sealing plates 12 and the like. The composite plate provided by the invention can be used as a generation heating unit, butt-joint tongue-and-grooves are arranged on the left and right sides, and the sealing plates are arranged at the upper and lower ends; the components are in lap joint with each other to form a whole roof panel or wall facade, and the roof panel and wall decoration can be completely replaced; thermal insulation and waterproof effects can be realized on the roof, and thermal insulation and decoration effects can be realized for the wall facade; particularly, hot water is generated by absorbing the heat of a power generation plate at the time of power generation; and moreover, a lighting window, a ventilating window and the like also can be designed on the roof panel or wall facade. Through the invention, clean energy for solar power generation, lighting, central water heating and central air conditioning can be provided for the building to achieve low-carbon or even micro-carbon life.

The invention provides a photovoltaic tile for self-cleaning by using wind energy, which relates to the field of photovoltaic tiles. The photovoltaic tile includes a bottom plate, and also includes acleaning rod used for cleaning photovoltaic panels, wind power fan blades used for driving the cleaning rod to rotate, and a linkage member used for linking the wind power fan blades and the cleaningrod to simultaneously rotate, wherein the photovoltaic panels are installed on the bottom plate. For the photovoltaic tile for self-cleaning by using the wind energy, because wind power of a roof is generally large, the photovoltaic tile is generally installed on the roof to replace an ordinary tile; and when a certain size wind blows over the roof, the wind power fan blades can produce rotation,the wind power fan blades drives the cleaning rod to rotate with a first rotating block as a center of a circle through the linkage member, so that a cleaning scraping blade at the bottom of the cleaning rod continuously cleans upper surfaces of the photovoltaic panels, dust accumulated on tops of the photovoltaic panels is cleaned, thereby ensuring that the dust on the top of the bottom plate cannot be accumulated, and the power generation efficiency and the heat dissipation efficiency of the photovoltaic tile are ensured.

The present invention relates to a public transport platform, especially to an intelligent public transport platform. The platform comprises a support and a station board. The station board comprises a plurality of public transport line boards. The station board is fixed on the support, a top plate is arranged at the top portion of the support, a solar panel mechanism and a light sensor are arranged at the top plate, the solar panel mechanism comprises a solar panel, a frame and a bracing piece, a rotary table is connected with the lower end of the bracing piece, the rotary table is connected with a motor arranged on the top plate, the solar panel is arranged in the frame, the upper end of the bracing piece is hinged with the frame, a cylinder is arranged on the bracing piece in an inclination mode, and the driving bar of the cylinder is hinged with the frame. According to the technical scheme, the intelligent public transport platform can perform statistics and display of number of people waiting for buses of public transport lines and can remind a bus driver whose bus is arriving whether there are people waiting for this public transport line or not through different colors displayed on an indicator light.