18results about How to "Guaranteed power generation efficiency" patented technology

The application relates to the technical field of photovoltaic power generation equipment, and particularly discloses a fault inspection device for a photovoltaic panel of a solar photovoltaic power station, which comprises a rack and an infrared scanner, the upper side of the rack is provided with a toothed plate for supporting the infrared scanner, the lower side of the rack is provided with a driving assembly, the driving assembly is used for driving the rack to move linearly along the surface of the photovoltaic panel, an adjusting assembly is arranged between the toothed plate and the rack, the adjusting assembly comprises an ear plate fixedly connected to the outer surface of the upper end of the rack, and a passive shaft is rotatably connected between the two groups of ear plates. Through the adjusting assembly, the toothed plate and the infrared scanner are turned over around the passive shaft driven by the supporting pipe, so that the scanning angle of the infrared scanner is adjusted, the angle between the infrared scanner and the photovoltaic panel is maintained within a proper range, the detection precision of the photovoltaic panel is effectively improved, and the application range of the inspection device is effectively widened.

The application relates to the technical field of wind speed detection, in particular to a wind speed detection device for a wind power project, which comprises a box body, a detection wind pipe, a low-speed detection module, a high-speed detection module, an adjusting assembly and a maintenance assembly. The detection wind pipe is arranged through the box body, the adjusting assembly is arranged on the detection wind pipe, the low-speed detection module and the high-speed detection module are arranged on the adjusting assembly, when the wind speed in the detection wind pipe is greater than the set value of the low-speed detection module, the adjusting assembly is electrified to work and drives the low-speed detection module and the high-speed detection module to move right, and when the wind speed in the detection wind pipe is less than the set value of the high-speed detection module, the adjusting assembly is electrified to work and drives the low-speed detection module and the high-speed detection module to move left. The low-speed detection module, the high-speed detection module, the adjusting assembly and the maintenance assembly are arranged, the detection accuracy is ensured on the basis of meeting the detection requirements of super-low speed to limit wind speed, and the power generation efficiency of the wind turbine is ensured.

This application discloses a corner-claw photovoltaic glass and its right-angle glass claw, belonging to the technical field of vertical suspension installation of double-sided photovoltaic power generation glass, and is suitable for sway-resistant wind power generation systems. The corner-claw photovoltaic glass includes double-sided photovoltaic power generation glass, with right-angle glass claws attached to its corners. The right-angle glass claw is divided into a right-angle edge bonding area and a right-angle outer edge mounting area. The bonding area is adhered to the mutually perpendicular edge areas of the glass corner by an adhesive layer, and the mounting area is provided with mounting holes for connection to movable connectors. The right-angle glass claw is preferably tempered glass, which can form a U-shaped structure to achieve force distribution on both the front and back sides of the glass. This application replaces existing hanging clamps, solving the defects of existing solutions such as high cost, easy generation of hot spots, and poor stability. It has the advantages of low cost, no shading, strong wind resistance, convenient installation, and long service life, enabling low-cost, high-stability vertical suspension installation of double-sided photovoltaic power generation glass without elastic pads.

The utility model relates to a subway vehicle-mounted brake resistor waste heat recovery system based on thermoelectric power generation, which comprises a vehicle-mounted brake resistor box, a thermoelectric power generation assembly, a liquid cooling temperature control system and an electric power conversion control system, the liquid cooling temperature control system comprises a liquid cooling device and a temperature control center, the liquid cooling device is arranged on the surface of the thermoelectric power generation sheet assembly and electrically connected to the temperature control center, the liquid cooling device is used for improving the power generation efficiency of the thermoelectric power generation assembly, and the power conversion system is used for converting direct current generated by the thermoelectric power generation assembly into a stable power supply used by conventional electric equipment of the vehicle. The device has the advantages that waste heat generated by the brake resistor can be effectively recycled and converted, the thermoelectric power generation efficiency can be improved to the maximum degree through the temperature difference, and the double benefits of heat dissipation and energy conservation are achieved.

The utility model provides a portable power generation and energy storage device, and belongs to the technical field of power generation and energy storage devices. Comprising an energy storage box, a horizontal sliding plate is installed on one side of the top of the energy storage box in an inserted mode, a photovoltaic panel is fixed to the upper end face of the sliding plate in an embedded mode, clamping blocks are symmetrically installed on the two sides of the sliding plate, a containing groove is formed in the upper end face of the energy storage box, and an extension plate capable of being overturned to be in a horizontal state is arranged in the containing groove. A plurality of inserting holes are formed in the side, facing the interior of the containing groove, of the extension plate. According to the utility model, the photovoltaic panel can be automatically cleaned in the process of unfolding the photovoltaic panel, the photovoltaic power generation efficiency of the photovoltaic panel can be ensured, the jacks of the device can be stored and protected, dust can be prevented from entering the jacks, and therefore, the whole use effect of the device is good, and the device is especially suitable for outdoor carrying and use.

The utility model discloses a photovoltaic device cleaning device which comprises a cleaning table, a containing groove is formed in the cleaning table, a photovoltaic device body is placed in the containing groove, two sets of installation bases are arranged on the cleaning table in a sliding mode, and a cleaning cylinder is rotationally arranged between the two sets of installation bases. Brush bristles are fixedly installed on the circumferential face of the cleaning cylinder, the cleaning cylinder is hollow, water spraying holes are formed in the circumferential face of the cleaning cylinder, a water conveying hose is fixedly installed on one side of the set of installation bases, a through groove is formed in the set of installation bases, and the through groove is communicated with the water conveying hose and the interior of the cleaning cylinder. According to the utility model, impurities on the surface of the photovoltaic device body are cleaned through the cooperation of the bristles which rotate while moving and the sprayed cleaning liquid, thereby preventing the impurities from reducing the bonding effect between the packaging material and the photovoltaic device body, improving the sealing performance of the photovoltaic device body after packaging, and improving the reliability of the photovoltaic device body. And meanwhile, the solar radiation receiving capability of the photovoltaic device body is ensured.

The invention relates to the technical field of solar panels, and discloses a cooling device for a photovoltaic solar panel, which comprises a cart, a cold air mechanism is arranged at the top of the cart, a flow guide mechanism is arranged on the front surface of the cold air mechanism, the cold air mechanism comprises an air blowing unit and a cooling unit, the air blowing unit is fixedly connected to the top of the cart, and the cooling unit is fixedly connected to the top of the cart. The cooling unit is arranged in the air blowing unit, the air blowing unit comprises an air box, a fixing rod, a turbine fan, a grid and a dust filtering net, the air box is a main body of the air blowing unit, an air outlet is formed in the front face of the air box, and an air inlet is formed in the back face of the air box. The cooling unit of the cold air mechanism is matched with the air blowing unit, cooling air can be blown out of the solar panel, continuous air blowing is achieved, continuous cooling is achieved in the solar photovoltaic working period, the good cooling effect is achieved, the solar photovoltaic power generation efficiency is guaranteed, and the safety degree is higher than that of water cooling.

The application discloses a control method of a new energy power station under a sub-super synchronous oscillation of a power grid. When the sub-super synchronous oscillation occurs in the power grid, different equipment resonance suppression modes are switched according to preset characteristic frequencies as thresholds. Different power grid current low-frequency component comparison thresholds are set for equipment in the power station. When the power grid current low-frequency component exceeds the comparison threshold of N power generation equipments in the power station, the operation mode of the N power generation equipments is switched to perform smooth transition. The method utilizes the damping characteristics of different power generation equipments, comprehensively and effectively suppresses the sub-super synchronous oscillation of the power grid in different degrees, prevents the power grid oscillation from further spreading, only part of the power generation equipments perform mode switching or control strategy switching when the power grid oscillates, and the remaining equipments maintain power generation operation, so that the power output level of the new energy power station is basically ensured, the stability of the power grid is ensured, the risk of batch power generation equipment off-grid caused by the power grid oscillation is reduced, and the power generation efficiency of the new energy power station is ensured.

This application discloses a method, apparatus, device, and medium for detecting photovoltaic anomalies. The method includes: acquiring irradiance correlation data and power generation data of a target user during a testing period; determining a target period category based on the irradiance correlation data of the target user during the testing period and at least two pre-determined period categories; and determining whether the target user's photovoltaic equipment is abnormal based on the power generation data of the target user during the testing period and power generation data matching the target period category. This technical solution solves the problem that staff can only discover photovoltaic equipment anomalies after a significant decrease in power generation, enabling timely detection of abnormal photovoltaic equipment and ensuring the power generation efficiency of users.

The invention discloses a fan blade clearance optimization method and system based on wind direction deviation, and the method comprises the steps: obtaining blade tip load test clearance data and blade tip no-load clearance data; calculating a blade tip test clearance rate; acquiring real-time wind direction data; determining a positive / wind direction-propeller angle curve; judging whether the wind direction data deviation is within a first preset range or not; executing corresponding variable pitch operation according to the deviation; acquiring real-time blade tip clearance data, and calculating a real-time blade tip clearance rate; whether the real-time blade tip clearance rate is within a second preset range or not is judged; if yes, a blade clearance optimization strategy is triggered, and the positive / negative wind direction-propeller angle curve is optimized according to the preset propeller angle amplitude; and whether the real-time blade tip clearance rate reaches the upper limit of a second preset range and lasts for preset time or not is judged, and if yes, the blade clearance optimization strategy is closed. The method can effectively solve the problems that a traditional blade clearance optimization method is large in power generation loss, and the clearance optimization effect is poor in the high turbulence or large wind direction change environment.

The present application relates to the technical field of floating photovoltaic power generation device, especially to an anti-deformation water surface floating photovoltaic power generation device. The device comprises a mounting plate, the upper side of the mounting plate is hinged with an adjusting plate, the adjusting plate is provided with a photovoltaic panel, the mounting plate is hinged with a first fixed shell, the first fixed shell is slidingly connected with a first sliding rod, the mounting plate is fixedly connected with an air bag, the air bag is connected with a first communication pipe, the first communication pipe is connected with a double-control communication shell, the double-control communication shell is connected with a second communication pipe, and the middle part of the air bag is fixedly connected with a partition plate. The angle of the adjusting plate is adjusted, the rotating direction of the adjusting plate is opposite to the rotating direction of the mounting plate, the angle of the photovoltaic panel generated by rotation is reduced, the intensity of the light received by the photovoltaic panel is ensured, the power generation efficiency is maintained, and the flexible connection avoids the deformation of the mounting plate caused by wave impact.

The utility model provides a low noise centrifugal explosion -proof fan relates to detector technical field, including fan welding frame, the rear end of fan welding frame is installed with centrifugal fan, the front end of fan welding frame is installed with silencer, is installed in the silencer with filter screen. Low noise centrifugal explosion -proof fan air outlet flange is installed in the generator air inlet, utilizes centrifugal fan air -blowing principle, will external low temperature air through centrifugal fan and send into the generator inside. The external low temperature air needs to pass through filter screen first, effectively isolates the sundries in external environment, then passes through the function of silencer, reduces the noise that air produces because of high -speed flow impact fan welding frame. Through the continuous operation of this low noise centrifugal explosion -proof fan, the high temperature air that wind driven generator inside operation produces will be sent out generator with the low temperature air that is constantly discharged, reaches the purpose that cools the generator, lets the generator be in an ideal operating environment.

The utility model discloses photovoltaic module pressure type coating equipment, which relates to the technical field of photovoltaic panel coating, and comprises X-axis linear modules, Y-axis linear modules, Z-axis linear modules, pressure sensors, a coating roller and an injection pump, the two X-axis linear modules are arranged in parallel at intervals, two ends of a Y-axis guide rail are fixedly connected with two X-axis guide rail sliding blocks respectively, and the Z-axis linear modules are fixedly connected with the Z-axis guide rail sliding blocks respectively. The Z-axis guide rail is fixed on the Y-axis sliding block, the Z-axis sliding block is fixedly provided with the mounting bracket, the coating roller is rotationally connected to the coating bracket, the axis of the coating roller is parallel to the XY plane, the upper end of the coating bracket is connected with the mounting bracket through the pressure sensor, the injection pump is mounted on the mounting bracket, the inlet end of the injection pump is connected with the feeding container, and the outlet end of the injection pump is connected with the distributing pipe. The material distribution pipe is arranged above the coating roller and used for evenly distributing materials to the coating roller. According to the utility model, the coating uniformity can be improved, the power generation efficiency and the service life of the photovoltaic module can be ensured, the labor cost can be reduced, and the coating efficiency can be improved.

The utility model relates to wind driven generator technical field discloses a vertical axis wind driven generator, including fan main shaft, a plurality of first blades, a plurality of first blades are along the circumferential interval of fan main shaft set up on fan main shaft, and a plurality of first blades form first blade group, a plurality of second blades, a plurality of second blades are along vertical direction set up on the downside of first blade group fan main shaft, and a plurality of second blades form second blade group, and second blade group at least partial with generator is at same horizontal height, the vertical axis wind driven generator of the utility model, through setting second blade group downside first blade group, and second blade group at least partial with generator is at same horizontal height, can reduce the gravity position of wind wheel whole. The structure setting of double -deck blade group can alleviate the tremble in the rotation of wind wheel, reduce the possibility of resonance occurrence, are favorable to keep the stable of power generation efficiency.

This application discloses a photovoltaic module and its frame structure. By installing a scraper that can expand and contract with temperature on the lower surface of the top plate of the frame, the scraper can bulge or be flush with the inner side of the top plate when it expands with temperature. Therefore, the dust accumulated between the laminate and the frame can be squeezed inward by the thermal expansion and contraction of the scraper. During rainfall, the dust is washed away by rainwater, and then discharged through the through-holes set on the top plate by the siphon effect, thus achieving a self-cleaning function. This increases the cleanliness of the laminate surface and ensures power generation efficiency. This can extend the cycle of manual dust cleaning. Moreover, the frame structure is intact, and there is no need to remove the top plate or redesign the pressure block, which reduces costs and ensures mechanical strength.

The application discloses a kind of photovoltaic module junction box intelligent glue filling and heat dissipation integrated device, including processing mechanism, the processing mechanism includes cabinet, the inside of the cabinet is provided with processing mechanism, the processing mechanism includes mounting plate, auxiliary block, stabilizing seat and limit slot, the inside of one of the mounting hole is rotatably connected with single head screw rod, two electromagnetic clutches and two second gears are arranged on the rotating shaft, the threaded end of the single head screw rod is threadedly connected with internal thread pipe, the bottom of the internal thread pipe is fixed with moving rod, the bottom of the sealing gasket is bonded with disc, the present application can automatically process the gelatinous body that solidifies at the outlet of glue filling pipe by setting processing mechanism, and will not interrupt the continuous processing flow of junction box, so as to ensure the processing efficiency of junction box, and then improve the use efficiency of photovoltaic module junction box intelligent glue filling and heat dissipation integrated device.

This invention discloses a desert edge photovoltaic ecological barrier system in the field of desertification control. From the desert side to the oasis side, it comprises: a dune-blocking belt, located on the ridge line of the dune chain, with adjustable tilt angle and height; a grid-like blocking belt, using a woven mesh structure to three-dimensionally intercept and stabilize large-scale shifting sand; a low-lying vertical sand-fixing belt, also using a woven mesh structure to stabilize near-surface windblown sand and fix loose sand particles; a first sand-blocking forest belt; a photovoltaic zone; a second sand-blocking forest belt; and a restoration zone. The beneficial effects of this invention are: by systematically integrating multiple levels of structures such as sand source blocking, grid-like sand fixation, windbreak forest belts, extensive array sand control, and enclosure and restoration, a continuous ecological protection chain is constructed from the desert side to the oasis side, effectively improving the system's sand-fixing capacity, ensuring the operational stability and power generation efficiency of the photovoltaic power station, and improving the ecological environment of the desert edge.

The invention discloses a full-scene anti-gust cooperative control method and system, and relates to the technical field of wind power dispatching, and the method comprises the steps: determining a current wind speed and a predicted wind speed corresponding to a wind speed change rate based on a wind speed prediction model; based on the current wind speed and the predicted wind speed, the current gust working condition is determined, and the current gust working condition is any one of a common gust working condition, a strong gust working condition and an extreme gust working condition; based on the current gust working condition, a corresponding cooperative control strategy is determined, and the cooperative control strategy comprises at least one of an attitude adaptive control strategy, a cluster output distribution control strategy and a protection control strategy; based on the cooperative control strategy, key control parameters of all wind generating sets in the target wind power plant under the current gust working condition are adjusted. By means of the mode, the full working conditions of conventional gust, strong gust and typhoon can be covered, a full-chain cooperative control system of single-machine response, cluster cooperation and extreme protection early warning is formed, and anti-gust cooperative control in a full scene is achieved.