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423 results about "Wind driven" patented technology

Wind Driven Rain is an illusive definition that is almost as illusive as the payments received by your insurance company from damages resulting from it. Simply put, wind driven rain is damage caused by rain that comes through an opening being propelled by wind or wind driven.

Wind power generation device and wind power generation control method thereof

The invention discloses a wind power generation device and a wind power generation control method.The wind power generation device comprises a supporting column, a sensor and a wind power generation mechanism, the wind power generation mechanism comprises a generator and a fan blade set, the wind power generation device further comprises a speed reduction mechanism, the speed reduction mechanism is electrically connected with a control system, and the sensor is electrically connected with the control system; when the sensor detects that the external wind speed reaches the first preset value, the control system controls the speed reduction mechanism to blow air to the fan blade set, speed reduction is conducted through blowing, a braking speed reduction structure does not need to be additionally installed between the blades and the generator, and therefore mechanical abrasion and maintenance cost are reduced; a complicated mechanical braking speed reduction structure is not arranged, so that the design of the wind driven generator is simpler, the weight is lighter, and the installation and the maintenance are more convenient; and mechanical parts are reduced, so that the reliability of the whole system is improved, potential fault points are reduced, and the service life of the wind driven generator is prolonged.
Owner:ZHONGSHAN AMIRAY TECHNOLOGY CO LTD

Wind power blade fatigue damage early warning method and system based on modal energy deviation

The invention provides a wind power blade fatigue damage early warning method and system based on modal energy excursion, and relates to the technical field of wind driven generators. According to the method, a multi-dimensional health baseline library is established under the healthy state of a wind power blade, and a current total strain signal and temperature distribution are synchronously collected in the operation process of a fan; performing temperature-strain decoupling on the total strain by using a healthy baseline library, and accurately extracting a real mechanical strain signal caused by the mechanical load; on the basis, a working condition modal recognition method is adopted to steadily obtain a current inherent frequency and a strain modal shape from real mechanical strain; calculating a current modal energy proportion and comparing the current modal energy proportion with the health baseline to generate an offset index reflecting a modal energy localization degree; and finally, in combination with the amplitude, the duration and the dynamic evolution trend of the offset index, and in combination with a fatigue accumulated damage assessment result, performing graded early warning judgment, and realizing early perception, accurate positioning and risk graded output of the fatigue damage of the blade.
Owner:SHANTOU UNIV

Wind driven generator blade deicing system and phase change microcapsule coating spraying process

The invention provides a wind driven generator blade deicing system and a phase change microcapsule coating spraying process, and relates to the technical field of wind power generation equipment protection, the deicing system comprises a heating module, a spiral flow guide rib, a phase change microcapsule coating and a control module; the heating module comprises a heating piece and a fan communicated with the heating piece; the spiral flow guide rib is used for forming a rotational flow air duct, so that hot air formed by heating of the heating module forms rotational flow air flow; the phase change microcapsule coating is at least coated on the wall surface of the inner cavity of the blade; the control module is in communication connection with the heating piece and the draught fan and is configured to adjust the rotating speed of the draught fan and the heating power of the heating piece at least according to the state of the phase change microcapsule coating. The deicing system improves the heat transfer efficiency, enables hot air to effectively cover all areas of the blade, prolongs the residence time of the hot air in the inner cavity of the blade, and improves the hot air utilization rate. And the phase change microcapsule coating and the rotational flow airflow have a synergistic thermal effect, so that the temperature of the wall surface of the blade is effectively, quickly and uniformly increased, and the deicing efficiency is improved.
Owner:CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Wind driven generator blade monitoring method and device, equipment and storage medium

The invention relates to the technical field of wind power generation, and discloses a wind driven generator blade monitoring method, which is applied to electronic equipment and comprises the following steps: acquiring a load parameter of a wind driven generator; and inputting the load parameters into the trained wind regime reconstruction model to enable the wind regime reconstruction model to generate wind regime data based on the load parameters. And inputting the wind regime data into the trained load calculation model, so that the load calculation model outputs load time sequence data of the blade based on the wind regime data. According to the method, when the load of the blade is monitored, compared with a mode of detecting the load borne by the blade by utilizing a sensor arranged at the root of the blade, the spanwise load of the blade can be monitored more comprehensively, so that the accuracy of monitoring the load of the blade of the wind driven generator is improved. The invention further discloses a monitoring device and equipment for the wind driven generator blade and a storage medium.
Owner:INNER MONGOLIA NEW VISION GROUP CO LTD +1

Green-energy self-power-generation endurance system of carrier

The invention provides a green energy self-power-generation endurance system of a carrier, which comprises a wind power generation assembly, a double-sided photovoltaic panel assembly, a double-sided photovoltaic soft curtain assembly and an air power generation assembly, which can utilize respective advantages to combine or independently carry out green energy power generation. The wind power generation assembly comprises a main air duct and a plurality of one-shaft double-body generators. The main air duct is provided with a closed cabin; a plurality of one-shaft double-body generators are arranged in the main air duct and the closed cabin in a matrix manner; each one-shaft double-body generator comprises a wind power blade arranged on a transmission shaft; the transmission shaft is located in the main air duct, and the two ends of the transmission shaft are rotatably connected to the wind driven generator in the closed cabin. According to the implementation mode, wind resistance airflow generated by driving of the carrier acts on the one-shaft double-body generator through the main air duct, so that each transmission shaft drives the two wind driven generators to synchronously generate electricity. The system has an extremely wide application range and can provide green electric energy for corresponding scenes.
Owner:北京吉圣金润企业管理有限责任公司

Flue gas waste heat recovery device for combined heat and power generation

The invention relates to the technical field of flue gas recovery, and discloses a flue gas waste heat recovery device for combined heat and power generation, which comprises an energy conversion mechanism positioned in a main fixed rack, and is matched with an input tank body, a three-way input pipe and an assembly rack for contacting sucked flue gas; the heat exchange dissipation mechanism is located in the fixing shell and used for dissipating heat generated by the electronic element. The wind driven generator is located in the fixing shell and matched with the output shaft for wind power generation. By means of the liquid storage pool and the filter plate structure, heat energy in high-temperature flue gas is transmitted through contact of water and flue gas, water is heated, and therefore the heat energy is recycled, waste heat resources of the flue gas are fully utilized through the design, the heat energy utilization efficiency is improved, flow of the high-temperature flue gas drives turbofan blades to rotate, then the output shaft is driven to rotate, and the heat energy utilization efficiency is improved. Energy is converted into electric energy through the wind driven generator, the kinetic energy of the waste smoke can be directly converted into the electric energy, and an effective combined heat and power generation mode is formed.
Owner:BENGANG STEEL PLATES CO LTD

Large wind power generator cabin cover transfer tool

The utility model relates to the technical field of generator cabin cover transfer, and discloses a large wind generator cabin cover transfer tool which comprises a sweeping board, a second guide rail and a sliding block, an adjusting mechanism is fixedly installed on the top end face of the sweeping board, and a fastening mechanism is fixedly installed on the top end face of the adjusting mechanism. When the cabin cover is transported, firstly, the position and orientation of a belt outlet are adjusted through a rotating piece and a mounting sleeve, a fastening belt on the side face of a sleeve is pulled out, the fastening belt crosses over the cabin cover and is fixed to a connecting rod, a shifting rod is shifted to limit the rotating direction of a ratchet wheel, a servo motor is started, the connecting rod is driven to rotate, and the fastening belt is wound on the side face of the connecting rod; after fastening is completed, a servo motor stops rotating, then a poking rod is poked to drive a poking block to deflect, a second clamping block is pushed to move and is matched with a reset spring to abut against a ratchet wheel, a connecting rod is prevented from rotating reversely after power is lost, the stability of the cabin cover can be improved, and the cabin cover can be prevented from being protected when the device is used; and the practicability of the device and the convenience of fixing the cabin cover are improved.
Owner:JILIN DONGQI TECH CO LTD

A main shaft fault identification method for a wind turbine under variable load operation state

PendingCN122429057AWind drivenRadial plane
The application relates to a main shaft fault identification method for a wind driven generator under a variable load operation state, and the method comprises the following steps: acquiring and storing at least two equal-angle interval sampling vibration signals in orthogonal directions in the radial plane of the front and rear rolling bearings of the main shaft and corresponding rotating speed signals; judging whether the storage amount of the equal-angle interval sampling vibration signals reaches a preset storage amount, if the judgment is yes, performing order spectrum calculation on the equal-angle interval sampling vibration signals, and extracting a fault feature vector; judging whether to trigger main shaft fault diagnosis according to a real-time vibration effective value, if the judgment is yes, inputting the fault feature vector into a pre-constructed confidence rule base model, obtaining the confidence degree distribution of each fault state through confidence reasoning, and identifying the unbalance and misalignment faults of the main shaft of the wind driven generator according to the confidence degree distribution. Compared with the prior art, the application can accurately extract non-stationary fault features under the variable load operation state of the wind driven generator, and improves the accuracy and reliability of fault diagnosis.
Owner:HUADIAN (ZHEJIANG) MARINE ENERGY TECHNOLOGY CO LTD

Device for predicting service life of connecting bolt

The utility model discloses a life prediction device for a connecting bolt, which relates to the technical field of wind driven generators, and comprises a connecting bolt and a strain device arranged at the root of the connecting bolt, the strain device comprises four strain gauges, the four strain gauges are connected with an acquisition network card through output lines, and the acquisition network card is connected with the connecting bolt. The acquisition network card is wirelessly connected with the pyroelectric sensor and the upper computer respectively; the stress condition of the bolt is collected in real time through the strain device, the four strain gauges capture axial, bending and shearing strain at the same time, the damage degree of the connecting bolt can be accurately predicted, and the monitoring precision and reliability of the connecting bolt are remarkably improved; the working temperature and the vibration condition of the connecting bolt are obtained through the pyroelectric sensor, the prediction comprehensiveness is improved, then the accuracy of fatigue life prediction is improved, and the stability and the safety of operation of the wind turbine generator system are improved.
Owner:GUODIAN GUANGXI NEW ENERGY DEV CO LTD

Vertical axis wind turbine integrated with auxiliary motor starting

The invention discloses a vertical axis wind turbine integrated with auxiliary motor starting, and belongs to the technical field of wind power generation. Comprising a base, a generator is fixedly connected to the right side of the upper surface of the base, an outer disc is fixedly connected to the top end of the output end of the generator, a blade assembly is fixedly connected to the upper surface of the outer disc, a transmission assembly is fixedly connected to the left side of the upper surface of the base, and a fluted disc is fixedly connected to the outer side wall of the outer disc. The transmission assembly is in meshed connection with the fluted disc; through the exquisite design of the transmission assembly, the bottleneck of low-wind-speed starting of traditional equipment is effectively broken through, and the applicability and practicability of the equipment are remarkably improved. In the initial state of the equipment, the electric telescopic rod on the base is in an extending state, the transverse block stops at the initial position of the side groove, the sliding block is located at the tail end of the sliding groove, the auxiliary gear and the fluted disc are kept in a separated state, and interference between components in a non-working state is avoided.
Owner:济南能源投资控股集团有限公司

Edge drying and storing device with automatic feeding function

ActiveCN224591182UWind drivenElectric machine
The utility model provides a have automatic feeding function's edge drying storage equipment, including main body frame, feeding part, fixed peg installation part, reel supply part, winding drive part, drying part, storage part and control part, and main body frame includes base, drying seat, feed seat and storage axle seat, and feeding part includes screw rod stepper motor, electric telescopic link, electric clamping jaw and feed frame, and fixed peg installation part includes conveying mechanism and fixed peg transfer mechanism, and reel supply part includes axle body mechanism, storage axle mechanism and axle mechanism, and winding drive part includes push rod motor, movable carrier plate, electric chuck and servo motor, and drying part includes heating wire, circulating fan, exhaust fan, drying pipe, roll axle and gyro wheel. The utility model has orderly winding to edge, and the existence of crease is reduced greatly, and the same volume stores more edge, and the quality of edge is no longer affected by weather, environment, and keeps dry and clean for a long time.
Owner:ANHUI MEIHU NEW MATERIALS TECH CO LTD

Damping generator base for wind power generation

The invention discloses a damping generator base for wind power generation, which belongs to the technical field of wind driven generator bases and comprises a tower tube for mounting wind power generation equipment, a cabin is fixedly mounted on the tower tube, a wind wheel is rotatably mounted at the front end of the cabin, a supporting seat is fixedly mounted in the cabin, and a fixed end base is mounted on the upper surface of the supporting seat. A gear box is fixedly installed on the fixed end base, the output end of the gear box is connected with a wind wheel, a steel frame is fixed in the cabin, a movable end base is fixed on the upper surface of the steel frame, a wind driven generator is fixed on the movable end base, and the output end of the wind driven generator is connected with the gear box. Vibration acceleration sensors are mounted on the fixed end base and the movable end base; according to the damping generator base, the connection state between the two bases can be regulated and controlled according to the change of a wind environment, so that vibration force under different conditions can be dynamically coped, and stable operation of a gear box and a wind driven generator is kept.
Owner:CHANGZHOU QITIAN MACHINERY MANUFACTURING CO LTD

Wind driven generator with heat dissipation function

The application relates to the field of wind power generation, in particular to a wind-driven generator with a heat dissipation function, which comprises a shell one, a shell two, a generator body, a rotating shaft, blades, a rotating disc, electric push rods and a wind guide outer pipe and the like; the shell one is fixedly connected with the shell two; the shell one is internally provided with the generator body; the output shaft of the generator body is fixedly connected with the rotating shaft; the rotating shaft is fixedly connected with a plurality of blades; the shell two is rotationally connected with the rotating disc; the rotating disc is fixedly connected with the wind guide outer pipe; and the wind guide outer pipe is fixedly connected with a plurality of electric push rods. The wind guide inner pipe is moved upwards to stagger the air inlet hole and the containing hole of the wind guide outer pipe, meanwhile, the deformed air inlet pipe and the wind guide outer pipe jointly shield the air inlet hole, so that when it rains, rainwater cannot enter the interiors of the shell two and the shell one through the wind guide inner pipe and contact the internal electrical system.
Owner:CHINA THREE GORGES UNIV

A bladeless wind turbine capable of improving wind power generation efficiency

The application relates to the field of wind power generation technology and discloses a bladeless wind driven generator capable of improving wind power generation efficiency, which comprises an energy storage base mechanism and a power capturing mechanism, the energy storage base mechanism comprises an electric energy storage system, a regulation and control transmission system, a protection optimization system and a light energy application system, and the power capturing mechanism comprises a power capturing and conducting system, a power capturing optimization system, a regulation and control optimization system and a support protection system; the bladeless wind driven generator capable of improving wind power generation efficiency has the power capturing optimization system and the regulation and control transmission system, the lifting regulation and control mechanism and the pneumatic conducting mechanism arranged in the regulation and control transmission system are started through the transmission control air pump, the lifting air cylinder piston rod is pushed out, the lifting butt joint seat and the lifting fixed seat are far away from each other, the upper end of the function mounting seat is lifted, the power capturing and conducting system is lifted, the power capturing column body is lifted, and the high-altitude airflow kinetic energy with a faster flow speed can be more favorably captured.
Owner:XIANGTAN UNIV

Supporting device convenient for improving stability and used for wind driven generator

The invention relates to a wind driven generator supporting device facilitating stability improvement. The wind driven generator supporting device comprises a cement base, a base fixedly arranged at the top of the cement base, a top plate detachably connected to the upper portion of the base and a wind driven generator body installed on the top plate. And a position adjusting mechanism for automatically centering the wind driven generator body is arranged between the base and the top plate. By means of the built-in mechanical position adjusting mechanism, an operator only needs to rotate the rotating disc on the ground, and finally rotary motion can be converted into synchronous radial expansion of the multiple centering plates through a series of determined mechanical transmission (the rotating disc drives the inner disc, and the inner disc pushes the adjusting cylinder through the locking block); in the process, the tower drum or the base of the wind driven generator is automatically guided and tightly held, so that the central axis of the tower drum or the base is quickly and automatically aligned with the center of the supporting device, repeated fine adjustment operation in a hoisting state is eliminated, the alignment precision is ensured by a mechanical structure, the one-time mounting qualification rate is improved, and the mounting time is greatly shortened.
Owner:HENAN UNIV OF URBAN CONSTR

Wind power generation system

The invention relates to the field of electric power, in particular to a wind power generation system. Comprising a rotating base and a wind power driving component installed on the rotating base, a middle base is connected to the rotating base in a matched mode, two fixing pieces are symmetrically and rotationally connected to the middle base, motors I are fixedly connected to the two ends of the middle base, rotating shafts are connected to output shafts of the two motors I through couplings, and the two rotating shafts are fixedly connected with the two fixing pieces respectively. The rotating seat is rotationally connected to the middle seat, a gear ring is fixedly connected to the rotating seat, a gear is fixedly connected to the middle seat, a motor III is fixedly connected to an output shaft of the gear, and the motor III is in meshing transmission connection with the gear ring. The wind power generation device has the beneficial effects that windward stress can be carried out at different height positions to realize conversion and utilization of wind energy.
Owner:高针

Heat dissipation device for tower drum of wind driven generator

The utility model relates to the technical field of wind driven generator tower tube heat dissipation, and discloses a wind driven generator tower tube heat dissipation device which comprises a shell, a movable shutter is arranged on one side wall of the shell, hinges are arranged on the two sides of the upper end of the movable shutter, magnetic attraction strips are arranged on the inner wall of the lower end of the movable shutter, and the magnetic attraction strips are arranged on the inner wall of the lower end of the movable shutter. A bottom plate is arranged on the side wall, directly facing the movable louver, of the shell, a cooling fan is arranged in the middle of the side wall, directly facing the shell, of the bottom plate, and a first filtering insertion plate is arranged on one side of the upper end of the shell. Through the arrangement of the bottom plate, the cooling fan and the connecting holes, the device can be conveniently inserted into the wind driven generator tower barrel and combined with the wind driven generator tower barrel to cool the wind driven generator tower barrel. The movable shutter can be movably opened and closed under the assistance of the magnetic attraction strip and the hinge, the interior of the device can be conveniently maintained, and the opening degree of a shutter assembly in the movable shutter can be adjusted according to needs.
Owner:HENAN FENGKE NEW ENERGY TECHNOLOGY CO LTD

Novel vertical axis wind turbine based on 3D printing technology

The utility model discloses a novel vertical axis wind turbine based on a 3D printing technology. Comprising two sets of resistance type blades, a set of lift type blades and the like, the contact area between the resistance type blades and wind is enlarged through a spiral structure, the starting torque and the wind energy capturing efficiency are improved, and the lift type blades can maintain efficient conversion at medium and high wind speeds and can provide balance for the whole fan; the rotating speed of the blades is regulated and controlled through inner and outer shafts and a gear speed change device, light-weight and modular manufacturing is achieved in combination with a 3D printing high-performance composite material, and a wind speed sensor is integrated. PID (Proportion Integration Differentiation) control parameters are dynamically optimized by adopting a BP (Back Propagation) neural network, the optimal tip speed ratio of a resistance type fan blade and a lift type fan blade is matched according to real-time wind speed, and when the resistance type fan blade reaches the optimal tip speed ratio, an operation mode is switched through a separation device, so that the lift type fan blade and the resistance type fan blade independently operate to ensure that the lift type fan blade reaches the optimal tip speed ratio; the utility model aims to give consideration to high starting performance and stable and efficient power generation.
Owner:NANJING NORMAL UNIVERSITY

Novel zero-carbon wharf

The utility model relates to the technical field of wharfs, in particular to a novel zero-carbon wharf which comprises a wind driven generator, an energy storage device, a wave energy power generation device, a distributed photovoltaic panel and production and living electric equipment. The wind driven generator, the wave energy power generation device and the distributed photovoltaic panel convert wind energy, wave energy and solar energy into electric energy and store the electric energy in the energy storage device. The energy storage device supplies power to wharf production and living electric equipment; according to the zero-carbon wharf, renewable power generation facilities are adopted for collecting clean energy and converting the clean energy into electric energy to be supplied to the wharf, the clean energy is efficiently utilized, dependence on traditional energy is reduced, and self-sufficient and self-use of the wharf energy is achieved; power equipment such as wharf loading and unloading equipment and transportation machinery is adopted, energy is supplied to ships berthing to the harbor through the shore power system, the problem of tail gas emission is solved, meanwhile, the environmental noise of the wharf is reduced, and zero carbon emission of the wharf in the operation process is achieved.
Owner:SHANGHAI CCCC WATER TRANSPORTATION DESIGN & RES CO LTD

An electric slip ring with internal self-cleaning

ActiveCN224502603UWind drivenBrush
The utility model discloses an electrical slip ring with internal self-cleaning function, which belongs to the field of wind power equipment. The electrical slip ring comprises a rotating part and a fixed part. The fixed part is provided with a first through hole and a second through hole in communication with the inner cavity of the fixed part at intervals. The first through hole is used for discharging hydraulic oil flowing into the fixed part. The first through hole, the inner cavity of the fixed part and the second through hole jointly form a fluid channel to balance pressure. The first through hole directly discharges the infiltrated hydraulic oil, avoiding the accumulation of the hydraulic oil in the electrical slip ring, which may cause the leakage of the hydraulic oil to pollute the conductive ring and the brush, resulting in the risk of damage to the electrical slip ring. The first through hole and the second through hole balance pressure, eliminating the siphon caused by negative pressure and preventing the passive suction of external oil. The utility model directly utilizes gravity and pressure difference to realize the automatic flow of oil, without additional power, which can improve the reliability of the wind driven generator, reduce the downtime for failure and ensure the utilization rate.
Owner:HUIZE CENTURY CONCORD WIND POWER CO LTD +1

Cooling power generation device

The invention provides a heat exchange cooling power generation device which mainly utilizes a heat exchanger, a chimney, a wind driven generator and energy storage equipment to complete cooling and power generation, and waste heat recovery and zero-carbon energy are achieved. The heat exchanger is used for heating air and cooling high-temperature materials; the hot air generates wind power in the wind power pipeline, and the wind power pushes the wind power generator to generate power; the larger the temperature difference is, the larger the wind power generated by the wind power pipeline is, and the more the generated power is.
Owner:NORTHERN HUARE (BEIJING) TECHNOLOGY CO LTD

Fan real-time control method and system based on edge calculation

PendingCN121916119AWind motor controlPassive/reactive controlStreaming dataWind driven
The invention discloses a fan real-time control method and system based on edge calculation, and the method comprises the steps: obtaining wind speed and turbulence data through an environment sensor, judging whether disturbance exists or not through a distributed calculation unit, and determining a blade adjustment angle and a yaw deviation value through the combination of closed-loop control simulation and a real-time control algorithm; and finally, a control cycle is updated through a safety evaluation model, it is ensured that response time delay meets the requirement, and a stable adjustment scheme is formed. Wind field disturbance detection and load optimization are seamlessly integrated, accurate regulation and control of the wind driven generator are realized, the load is effectively reduced, and the system stability and the power generation efficiency are improved.
Owner:HUNAN XINMINGAN ELECTROMECHANICAL TECH CO LTD

Gear box oil cooling heat dissipation device for wind driven generator

The utility model discloses a gearbox oil cooling heat dissipation device for a wind driven generator, which relates to the technical field of wind power generation equipment and comprises an assembly bracket, a first heat dissipation mechanism is arranged at the upper end of the assembly bracket, a second heat dissipation mechanism is arranged at the upper end of the assembly bracket, and an air cooling mechanism is arranged below the first heat dissipation mechanism. The first heat dissipation mechanism comprises a heat dissipation block, a heat dissipation pipe is wound around the upper end of the heat dissipation block, pump bodies are installed at two ports of the heat dissipation pipe, and connecting pipes are fixedly installed at the other ends of the two pump bodies. Hot oil in the gear box flows in the heat dissipation pipe after being pumped out through one set of pump bodies, heat is transmitted to the heat dissipation block, cooling liquid in the heat dissipation block can absorb the heat, meanwhile, the two sets of fans on the assembly supporting frame conduct air cooling on the heat dissipation block and the heat dissipation pipe, the double heat dissipation mode that oil cooling and air cooling are combined is achieved, and the heat dissipation efficiency is improved. The heat dissipation efficiency is greatly improved, and the oil temperature in the gearbox can be effectively reduced.
Owner:FOSHAN QIWEIBANG BUILDING MATERIALS CO LTD

A pitch angle control method considering fast active power regulation of wind turbine

The application discloses a pitch angle control method considering fast active power regulation of a wind driven generator, which can reduce pitch angle fluctuation of all PMSGs during fast active power control, minimize fatigue damage of the wind driven generator, prolong the service life of the wind driven generator and reduce maintenance cost. P ; S2, a wake effect model of the wind farm containing mathematical models of the plurality of PMSGs is constructed to determine a plurality of pitch angles beta from the power coefficient c P ; and S3, a fast active power control model of the wind farm is constructed to satisfy minimum pitch angle beta fluctuation of the PMSGs.
Owner:XIAN THERMAL POWER RES INST CO LTD

Supporting rod structure and aerial root plant supporting device

The utility model relates to a supporting rod structure and a supporting device for aerial root plants. The device is suitable for the technical field of plant supporting equipment. According to the technical scheme, the supporting rod structure is provided with a rod body, the rod body is hollow, and air holes are formed in the side wall of the rod body; the forest fog equipment is communicated with the rod body through a connecting pipe, the forest fog equipment can generate fog, and the fog is conveyed into the rod body through the connecting pipe; the wind driving mechanism is installed in the connecting pipe and can drive air flow between the forest fog device and the rod body to flow and drive fog to flow towards the rod body. Thus, after mist is generated by the mist forest equipment, the mist flows into the rod body through the wind driving mechanism in the connecting pipe and is finally sprayed out from the air holes of the rod body, the humidity of the position where the rod body is located can be adjusted, and aerial roots can be in a high-humidity environment when the rod body is installed on aerial root plants to play a supporting role.
Owner:POWERCHINA HUADONG ENG CORP LTD

Wind power yaw speed reducer

A wind power yaw speed reducer relates to the technical field of yaw transmission of a wind driven generator, can meet the requirement of large speed ratio of the yaw speed reducer by modifying a gear transmission structure and adopting a 2Z-X and 3Z type two-stage planetary structure, can effectively reduce the transmission stage number of planetary gears, and reduces the number, weight and overall appearance size of parts. And later maintenance is facilitated. In the wind power yaw speed reducer, a motor base and an upper machine body are connected with a lower machine body through bolts, and the lower machine body is fixed to a wind driven generator rack; the yaw speed reducer box body is fixed during working, and motor power is output to a yaw gear ring through an open gear after speed reduction and torque increase through a gear in the speed reducer.
Owner:YINCHUAN WEILI REDUCER MACHINERY

A direct current variable pitch motor control system

The application relates to a direct-current variable-pitch motor control system, which is characterized by including a closed-loop control method of four speed feedback units in two speed feedback signal modes, four speed feedback modes covering all speed feedback modes of a variable-pitch system and capable of being flexibly and simply switched; in addition, the application also includes an open-loop control method for emergency treatment in the case that a motor speed feedback unit of the direct-current variable-pitch motor is faulty or signal loss occurs, the direct-current variable-pitch motor can track the speed signal before the emergency and a current control signal, so that the variable-pitch motor is ensured to stably operate and the wind driven generator is ensured to be safe; the application also proposes a steady-state control method of open-loop and closed-loop units and a switching process, which prevents motor current from suddenly jumping and prevents motor speed from suddenly changing. The design of the application is suitable for variable speed feedback modes of the direct-current motor used for variable-pitch control, and ensures that the wind driven generator set is reliable and safe.
Owner:HUANENG WEIHAI POWER GENERATION CO LTD

A reversible hoisting tool

The utility model belongs to the technical field of wind driven generator cabin cover, especially relates to a kind of overturning hoisting tool, including hanger assembly, rotating assembly and fixed component, the fixed component is respectively rotated and is connected in the both sides of hanger assembly by the rotating assembly of both sides;The fixed component includes L type fixed seat, and the upper pressing plate of hinged connection on L type fixed seat, the L type fixed seat with the upper pressing plate forms limit slot, locking assembly is equipped on the upper pressing plate, angle locking assembly is equipped between the upper pressing plate with L type fixed seat, the position of the upper pressing plate is locked by the angle locking assembly, the utility model provides a kind of overturning hoisting tool, simple structure, it is easy to operate, stable safety, and the advantages such as wide adaptability.
Owner:SHANDONG GRAD GROUP

Automatic yawing type floating body foundation of low-cost offshore multi-head wind driven generator

The utility model discloses a low-cost offshore multi-head wind driven generator automatic yawing type floating body foundation, which belongs to the technical field of offshore wind power engineering and comprises a multi-head fan and a floating type foundation main body, the floating type foundation main body comprises a middle stand column and a connecting frame, the top of the middle stand column is fixedly connected with the multi-head fan, and the top of the middle stand column is fixedly connected with the connecting frame. The side face of the middle stand column is fixedly connected with a plurality of side buoy assemblies through a connecting frame, guiding fins are fixedly arranged outside the side buoy assemblies, the direction of the guiding fins right faces the front face of the multi-machine-head draught fan, and a spherical hinge type mooring assembly is fixedly arranged at the bottom of the middle stand column. Through the design of the guide fins, the floating body foundation is driven by wind or water flow power to automatically yaw, so that the power generation efficiency and the typhoon resistance are remarkably improved; the spherical hinge type mooring assembly is adopted to support 360-degree free rotation, cable winding is avoided, the structure is simplified, and reliability and maintenance convenience are improved; according to the whole scheme, the automatic yawing function is achieved with low cost, and an economical and practical technical path is provided for large-scale application of offshore wind power.
Owner:SINOMA OVERSEAS DEVELOPMENT CO LTD

Wind power generation system and wind power generation method

The invention relates to the field of wind power generation, in particular to a wind power generation system and a wind power generation method. The method comprises the following steps that firstly, wind power is used for driving a gear set to operate; 2, a power generator and an input shaft are driven to rotate in the opposite directions through a gear set; and step 3, carrying out air-cooling heat dissipation on the generator. Wherein the upper side and the lower side of a gear box in the power generation system are rotationally connected with a gear I and a gear II correspondingly, the periphery of the interior of the gear box is rotationally connected with gears III correspondingly, and the gear I and the gear II are in engaged connection with the four gears III correspondingly; a plurality of connecting columns are fixedly connected to the lower portion of the gear box, and a motor box is fixedly connected to the lower portions of the connecting columns; a rotating disc I is rotatably connected in the motor box, and a motor is fixedly connected below the rotating disc I. The wind driven generator aims at improving the power generation efficiency of the wind driven generator and meanwhile dissipating heat of the generator.
Owner:宫长亮