5668results about "Wind motor with parallel air flow" patented technology

The invention relates to the technical field of new energy, in particular to a fan blade composite deicing system and method.The fan blade composite deicing system comprises a sensing layer, a decision-making layer, an execution layer and a feedback layer, and the decision-making layer comprises a graph neural network ice type recognition module, a CFD-icing coupling simulation module, a health management module and an energy consumption scheduling algorithm unit; the execution layer comprises a control unit and an execution unit, the control unit comprises a dynamic partition heating controller and a self-adaptive vibration controller, and the execution unit comprises an electric heating system and a vibration deicing system; compared with the prior art that a single deicing mode is usually adopted, and the adaptability to different ice type physical characteristics is poor, the scheme adopts a differential execution strategy, and partition electric heating control is carried out on different chord length areas of the blade based on the ice type recognition result; and high-frequency piezoelectric standing wave vibration is adopted for glaze ice, low-frequency eccentric wheel vibration is adopted for glaze ice, and the beneficial effects that the deicing efficiency is remarkably improved, invalid energy consumption is reduced, and damage to blades is reduced are achieved.

The invention relates to the field of wind power generation, and discloses a wind power blade which comprises a blade body, a wind power generation assembly and a wind power generation assembly. The counterweight assembly is mounted in the hollow cavity of the blade body; the balance weight assembly is connected to the blade body through a first elastic bonding layer, and the first elastic bonding layer comprises bonding glue with the tensile modulus smaller than 2 GPa. The problems that stress concentration can be generated between a balance weight and a wind power blade, and then damage and even falling are caused are solved. The balance weight assembly is connected with the blade body through the first elastic bonding layer, the first elastic bonding layer comprises the bonding glue with the tensile modulus smaller than 2 GPa, when the wind power blade is stressed, deformation of the balance weight assembly and deformation of the blade body are isolated through the first elastic bonding layer, and the first elastic bonding layer has certain elastic deformation; stress concentration and stress accumulation between the balance weight assembly and the blade body are avoided, damage between the balance weight assembly and the blade body is reduced, and the risk that the balance weight assembly falls off is reduced.

The present invention comprises an aerodynamic profile body with an outer flow surface for flow by a fluid, wherein the aerodynamic profile body comprises: - an upper cover layer and a lower cover layer, which form at least part of the outer flow surface and are designed to be flexurally elastic in an end section of the aerodynamic profile body, and - an actuator device with at least one actuator provided in an interior of the aerodynamic profile body, which actuator interacts with at least one of the cover layers in the flexurally elastic end section in such a way that the cross section of the aerodynamic profile body in the flexurally elastic end section can be changed by the at least one actuator, characterized in that - the at least one actuator is fastened with a first actuator end to a first fastening point in the interior and with at least a second actuator end to a second fastening point in the interior, - wherein the second attachment point is arranged transversely to the span of the aerodynamic profile body at a distance from the first attachment point and on an inner side of one of the cover layers in the flexurally elastic end section, and - the at least one actuator is designed such that the linear distance between the first attachment point and the second attachment point can be changed in order to change the cross-section of the aerodynamic profile body.

A system and method for manufacturing a wind turbine blade. The wind turbine blade includes a shell structure defining a leading edge and a trailing edge. The wind turbine blade also includes a longitudinal edge extension arranged to extend at least partially along the leading edge or at least partially along the trailing edge to modify an aerodynamic characteristic of the wind turbine blade. The longitudinal edge extension includes a center section and a peripheral section comprising attachment means, and the shell structure is arranged to engage with the attachment means to secure the longitudinal edge extension.

The invention relates to the technical field of wind power generation, and particularly discloses a duct double-turbine supercharged windmill which comprises a duct and a blade type rotating structure arranged in the duct. The duct sequentially comprises a first contraction section, a first straight section, a second contraction section and a second straight section in the air flow direction, and the diameter of the first straight section is larger than that of the second straight section. The blade type rotating structure comprises a rotating shaft, a first-stage turbine and a second-stage turbine, the first-stage turbine and the second-stage turbine are arranged on the rotating shaft, the first-stage turbine and the second-stage turbine are correspondingly arranged on the first straight section and the second straight section respectively, and the rotating shaft is connected with the generator through a transmission structure. Structural improvement is carried out through the blade type rotating structure and the duct, the turbofan located at the front end drives the turbofan located at the rear end to rotate, and therefore the wind energy utilization rate is increased.

The present invention provides a wind-driven direct-driven refrigeration device and a design method for protecting permafrost, which belongs to the field of permafrost engineering technology. The refrigeration device includes a cabinet and a wind turbine unit installed inside the cabinet, a transmission speed-changing mechanism unit and a refrigeration unit. The wind turbine unit is used to convert wind energy into mechanical energy, the transmission speed-changing mechanism unit is used to increase the speed of the wind turbine unit output and the output speed can be adjusted autonomously, the output speed of the transmission speed-changing mechanism unit is limited within a reasonable range, and the refrigeration unit is used to transport cold to the inside of the permafrost foundation to refrigerate the permafrost and protect the permafrost. The wind-driven direct-driven refrigeration device and a design method for protecting permafrost provided by the present invention solve the technical problem of low energy utilization rate of the equipment and methods used for protecting permafrost in the prior art, and have the technical effects of reducing energy loss, high energy utilization rate, high efficiency of the refrigeration system, and good practicality.

The invention provides a wind power direct drive type refrigeration device for protecting permafrost and a design method, and belongs to the technical field of permafrost engineering, the refrigeration device comprises a cabinet, a wind turbine unit, a transmission speed change mechanism unit and a refrigeration unit, and the wind turbine unit, the transmission speed change mechanism unit and the refrigeration unit are installed in the cabinet; the transmission speed change mechanism unit is used for increasing the rotating speed output by the wind turbine unit, the output rotating speed can be automatically adjusted, the rotating speed output by the transmission speed change mechanism unit is limited within a reasonable range, and the refrigeration unit is used for conveying cold energy into the permafrost foundation so as to refrigerate permafrost and protect the permafrost. According to the wind power direct drive type refrigerating device for protecting the permafrost and the design method, the technical problem that in the prior art, equipment and methods used for protecting the permafrost are low in energy utilization rate is solved, and the technical effects that energy loss is reduced, the energy utilization rate is high, the refrigerating system efficiency is high, and practicability is good are achieved.

The invention relates to the technical field of wind power generation, in particular to a forward and reverse rotation double-rotor multi-blade wind generating set, and aims to overcome the defects of low wind energy utilization rate and unstable power generation reliability caused by inconvenience in angle adjustment of blades in the prior art, the following scheme is provided: the forward and reverse rotation double-rotor multi-blade wind generating set comprises a base; the number of the fixing legs is four, and the four fixing legs are all fixedly installed at the bottom of the base; the turntable is rotatably mounted at the top of the base, a first mounting box is fixedly mounted at the top of the base, and a first stepping motor is fixedly mounted on the inner wall of the first mounting box; and the number of the supporting columns is two, the two supporting columns are both fixedly installed on the top of the rotating disc, first rotating shafts are both rotatably installed on the two supporting columns, and the angle of the blades can be conveniently adjusted, so that the wind energy utilization rate can be further increased, and the power generation reliability can be further improved.

An electronic device for integrated monitoring of a wind turbine is described. This electronic device may selectively electrically couple to a lightning-protection system, which is included within a wind-turbine blade or wing. For example, the electronic device may establish the electrical coupling when the wind-turbine blade is orientated below a horizontal direction (such as an orientation having an angle between 180° and 360°). Then, the electronic device may characterize the wind-turbine blade using time-domain reflectometry. More generally, the electronic device may characterize the wind-turbine blade using a wide variety of measurements, such as: pressure, humidity, acoustic, vibration, etc. Moreover, measurement results may be communication from the electronic device to a remote computer (such as a cloud-based computer system) for analysis. When the analysis identifies potential damage to the wind-turbine blade, the remote computer and / or the electronic device may perform a remedial action, such as recommending enhanced inspection and / or a repair.

A wind turbine blade (20) that extends longitudinally in a spanwise direction between a root end (24) and a tip end (26), and in a chordwise direction between a leading edge (28) and a trailing edge (30), is disclosed. The wind turbine blade (20) includes a first opposing half-shell portion (34) and a second opposing half-shell portion (36) which together define an interior (38) the wind turbine blade (20), and at least one shear web (52) that extends between the first opposing half-shell portion (34) and the second opposing half-shell portion (36). The wind turbine blade (20) further includes at least one vibration damping device (60, 90, 122, 124, 126, 128, 132, 204, 224, 230, 250) for reducing noise emission from the wind turbine blade (20). The at least one vibration damping device (60, 90, 122, 124, 126, 128, 132, 204, 224, 230, 250) includes at least one resonating member (62, 138, 202, 232, 260) that extends from a surface of the wind turbine blade (20) to a distal end (70, 96, 156, 186, 206, 234, 262) that is configured to oscillate to dissipate vibrational energy away from the surface of the wind turbine blade (20).

The invention discloses a wind power generation device and system, and the device comprises a main bag body which extends in the front-back direction, and the peripheral surface of the main bag body is a rotary surface; the annular wing is arranged on the radial outer side of the main bag body in a sleeving mode, the annular wing and the main bag body are spaced, and an airflow channel is formed between the inner wall of the annular wing and the outer wall of the main bag body; the airflow channel is divided into a plurality of air channels through components, the air channels are arranged in the circumferential direction of the main bag body, and fan blades are arranged in at least part of the air channels. By means of the coaxial layout of the main bag body and the annular wing and the combination of division of an airflow channel by a component, efficient capture and energy conversion of wind energy are achieved. Compared with a traditional floating power generation device, the wind sweeping area of the fan blades can be remarkably reduced under the same power generation power, the economical efficiency of the wind power generation device is improved, and the technical feasibility of stepping towards a higher altitude and a higher wind energy density area is achieved.

The invention relates to a duct type wind driven generator, an adjustable duct structure and a duct adjusting method. According to the adjustable duct structure, the sensor and the control unit are arranged, the outlet sectional area of the duct unit can be automatically adjusted according to the change of the wind speed, so that the optimal wind energy conversion efficiency and the stability of the aerostat are kept, and continuous and automatic adjustment of the outlet sectional area of the duct unit is achieved. The adjustable ducted structure can be applied to a wind power generation process, so that the adjustable ducted structure can be configured as a ducted wind power generator to convert airflow kinetic energy into electric energy. The problem that an existing aerostat duct structure is unstable in wind energy utilization efficiency under different wind speed conditions is solved, remarkable technical progress is achieved, and the aerostat duct structure is suitable for the field of wind energy collection and conversion.

An installation method for an offshore wind turbine, comprising: providing a docking device (100), and movably fixing the docking device to a floating foundation (200), the docking device comprising an annular body (10) and a docking cavity penetrating therethrough; connecting a compensation device (300) to a hoisting appliance (400), the hoisting appliance being connected to a hoisted object by means of the compensation device; using the hoisting appliance to hoist a support tower (500), and inserting the support tower into the docking cavity and connecting same to the floating foundation (200); moving the docking device to the end of the support tower away from the floating foundation in the axial direction of the support tower and movably fixing same to the outer wall of the support tower; and using the compensation device to hoist a power generation assembly, the power generation assembly comprising a rotor, a nacelle (700) and a connection tower (800) connected to the nacelle, and inserting the connection tower into the docking cavity and connecting same to the support tower. The method improves the capability of installing offshore wind turbines and reduces installation costs.

The present invention discloses a surge-reducing and low-noise wind turbine blade with adjustable blade angle, which relates to the technical field of wind turbine blades. It comprises a hub body, a connecting shaft is fixedly mounted on the hub body, the interior of the hub body is divided into a power supply chamber, a mounting chamber and a drive chamber, an adjustment component is provided inside the drive chamber, a wind turbine blade is mounted on the adjustment component, a blade tail is fixedly mounted on the tail of the wind turbine blade, the side edge of the wind turbine blade is set as a notch, a linkage component is provided inside the mounting chamber, and a guide component is provided on the linkage component. The invention concentrates the airflow by synchronously rotating the guide vanes with the wind turbine blades. This design can effectively improve the flow characteristics of the airflow on the blade surface, increase lift, and reduce noise. Combining the guide vanes with the blade angle adjustment mechanism enhances its adaptability and effectively improves the use effect of the wind turbine blades.

The present invention provides a wind turbine with an automatic protection function, which relates to the technical field of wind turbines, and comprises a base, a telescopic automatic protection support rod is provided on the base, a vertical generator is installed on the top of the telescopic automatic protection support rod through a horizontal control component, a horizontal axis wind turbine head and a vertical axis wind turbine assembly are installed on the vertical generator, a wind meter is provided on the horizontal axis wind turbine head, and the wind meter is electrically connected to the horizontal axis wind turbine head and the vertical axis wind turbine assembly through a controller. The present invention combines the horizontal wind turbine with the vertical wind turbine, so that the wind turbine can generate electricity normally at low wind speeds, can generate electricity in both directions at medium wind speeds, and can effectively protect the horizontal axis wind turbine head at high wind speeds, thereby increasing the power generation efficiency and the safety and reliability of the wind turbine.

The invention discloses a wind power blade structure with a segmented tail edge and a method, solves the problem that in the prior art, the width of a wind power blade cannot be increased due to transportation limitation, and has the beneficial effect that on the premise that the strength is guaranteed, segmented transportation can be achieved so that the width of the blade can be increased. Comprising a blade body and a blade trailing edge which are arranged in the chord direction of the blade, the blade body is provided with a first notch, the blade body is provided with a first trailing edge beam in the length direction of the blade body, the first trailing edge beam passes through the first notch, and a first web is arranged at the first notch of the blade body in the thickness direction of the blade body and supports the first trailing edge beam; a second notch is formed in one side of the blade rear edge, the shape of the second notch is matched with that of the first notch, a second rear edge beam is arranged in the length direction of the blade rear edge and passes through the second notch, and the first rear edge beam and the second rear edge beam can be bonded into a whole.

The invention discloses a wind driven generator blade deicing system and method, and relates to the technical field of wind power generation, the wind driven generator blade deicing system comprises fan blades, a generator cabin and a tower, the fan blades are fixedly connected to the peripheral side of a hub, the middle of the hub is connected with the generator cabin through a main shaft, and the lower end of the generator cabin is connected with the tower; an air heating box is arranged in the tower, air is heated through an electric heater, hot air is conveyed into fan blades, a soaking net is embedded in the fan blades, heat of the hot air is transferred to the soaking net through a heat conduction plate arranged in the fan blades to heat the fan blades, the temperature of the surfaces of the fan blades is evenly increased, and the heat conduction effect is improved. And meanwhile, hot air is blown to the surfaces of the fan blades from the annular air spraying pipes, the deicing efficiency is improved, heat generated when the generator works is absorbed through the heat exchanger, cold air is preheated, and the utilization efficiency of energy is improved.

A vortex generator 10, 10′ is arranged oblique to the flow direction DF on the surface 8 of the radially inward portion 1 of a HAWT rotor blade. The vortex generator has an upwardly stepped free edge 12 and defines, proximate its trailing end 14, a lower convexity 23 opposite a lower concavity 23′, and an upper convexity 24 opposite an upper concavity 24′. The upper and lower concavities 24′, 23′ open at opposite sides 15, 16 of the vortex generator.

The invention discloses a wind power blade self-cleaning system and a wind generating set, and relates to the technical field of wind power generation. The blade body is provided with dedusting air holes. The pressure surface of the blade body is provided with a concave part and at least one sliding groove; the profiling air bag is attached to the concave part and is provided with at least one fixed connection part and at least one sliding block structure, the fixed connection part is fixedly connected with the pressure surface, and the sliding block structure is in sliding fit with the sliding groove; the gas pumping and discharging device is used for supplying gas to the dust removal air holes, so that dust on the surface of the blade body is blown away through airflow sprayed outwards by the dust removal air holes; and the gas pumping and exhausting device is used for alternately carrying out gas supply and negative pressure pumping on the inner cavity of the profiling air bag, so that the profiling air bag is alternately expanded and contracted, and the sliding block structure is driven to slide along the sliding groove and collide with the two ends of the sliding groove. According to the scheme, the vibration intensity generated in the expansion and contraction process of the profiling air bag can be increased through collision, and sand and dust can be fully separated from the blade body.

Provided is a wind turbine component for a wind turbine, in particular for a wind turbine tower and / or a rotor blade, to a wind turbine tower, to a rotor blade, to a wind turbine and to a method for producing a wind turbine component. Provided is a wind turbine component for a wind turbine, in particular for a wind turbine tower and / or a rotor blade, comprising a first wall element with a first inner surface and a first outer surface arranged opposite the latter, a corrugated structural element, wherein the structural element is arranged on the first inner surface or on the first outer surface, wherein the first wall element is connected to the structural element.

The invention provides a double-blade breeze generator which comprises a machine frame, an inner impeller and an outer impeller, the inner impeller and the outer impeller are arranged on the machine frame, and the inner impeller comprises a rotating shaft and a plurality of inner spiral blades arranged on the rotating shaft. The outer impeller comprises two shaft sleeves, a plurality of outer spiral blades connected between the two shaft sleeves and air ducts arranged on the outer diameters of the outer spiral blades, and the inner spiral blades and the outer spiral blades are in positive and negative spiral shapes; the inner impeller and the outer impeller are of a coaxial sleeving structure, namely, a containing cavity is formed in the center of the outer spiral blade, the two ends of a rotating shaft of the inner impeller are inserted into the two shaft sleeves respectively, and the inner spiral blade is located in the containing cavity. The rotating outer diameter of the inner spiral blade is smaller than the rotating inner diameter of the outer spiral blade. According to the double-blade breeze generator of the structure, through interaction of the inner impeller and the outer impeller, the rotating speed of the inner impeller is increased in a geometric level, and therefore the power generation efficiency is greatly improved.

The invention relates to a wind turbine nacelle (2, 40) configured for mounting on a wind turbine tower (3), the nacelle comprising a top cover comprising multiple cover elements (41, 42, 43, 44), of which at least one is a dome cover element (44) comprising a dome-shaped part (45); wherein said nacelle has a second configuration in which said dome-shaped part (45) protrudes upwards and a first configuration in which said dome-shaped part (45) protrudes downwards.

The utility model relates to a small fan applied to an extreme environment, which comprises a passive yawing mechanical structure, the passive yawing mechanical structure comprises a tail vane and a vertical shaft which are fixed on a cabin, the tail vane is fixedly connected to the tail of the cabin and comprises a tail vane rod and a tail vane plate, the tail vane rod is inclined relative to the main axis of a generator, and the tail vane plate is positioned at the tail end of the tail vane rod; the vertical shaft is fixedly mounted on one side of the cabin and is biased relative to the main axis of the generator; and the passive variable-pitch mechanical structure comprises centrifugal flying rods arranged on blade handles of the blades and a synchronous variable-pitch mechanism installed in a closed space formed by the hub, the flow guide cover and the blades, and the synchronous variable-pitch mechanism is arranged to be capable of achieving simultaneous variable pitch on the blades under driving of the centrifugal flying rods. According to the utility model, in an extreme environment, through the adjustment of two sets of passive mechanical structures, the dependence on an electric control system is reduced, and stable and continuous power output can still be realized after the storage battery is fully charged; and the synchronous variable pitch mechanism is accommodated in the closed space, so that the service life and the safety of the equipment are improved.

The invention provides a displacement vortex generator and a position regulation and control method, and belongs to the field of active flow control equipment. The VG comprises a belt, a belt guide rail, a belt bearing, a sliding block, a supporting column, a triangular VG body, a guide rail supporting block, a limiting groove, a body connecting plate and a motor. The belt is arranged on the belt guide rail and is driven by the motor; the sliding block is arranged on the belt, is in an inverted concave shape and is connected with the body connecting plate through the supporting column, and the VG bodies are fixed to the two ends of the body connecting plate. The belt guide rail is arranged on the guide rail supporting block, and the sliding block can penetrate through the limiting groove. The motor is controlled to drive the belt to drive the sliding block and the VG body to move, and accurate adjustment of the position of the vortex generator body is achieved. The position of the vortex generator is automatically adjusted according to changes of the incoming flow wind speed and the attack angle, the optimal pneumatic effect is kept under different working conditions, the pneumatic performance and the power generation efficiency of the wind turbine blade are remarkably improved, and the negative influence of the front edge roughness can be effectively weakened.

A wind turbine component adapted to be attached to a wind turbine, wherein the component is a cover element adapted to cover at least one part of a wind turbine or an aerodynamic element adapted to be attached to a rotor blade of a wind turbine, wherein the component includes a main body with a continuous and at least partly curved surface, wherein the main body is formed by a layer stack including a plurality of layers, wherein at least two of the layers are of a different material.

The invention relates to the technical field of wind power generation, and discloses an anti-icing and deicing system and method for a wind turbine generator, electronic equipment and a storage medium, the system comprises a heating module which is laid on the surface of a blade and is divided into a plurality of heating subareas, and the heating subareas are used for independent control to provide local heating; the monitoring module is used for detecting and outputting the icing thickness and environmental parameters of the blade; and the control module is in communication connection with the monitoring module and the heating module, and is used for dynamically adjusting the power of the heating subareas based on the icing thickness and the environmental parameters, and realizing anti-icing control through an icing prediction model. Through the partition design of the heating module, the local icing area of the blade can be accurately heated, and energy waste caused by heating of the whole blade is avoided; the icing thickness and environmental parameters are monitored in real time, so that the control module can dynamically adjust the power, anti-icing operation is triggered in advance in combination with the icing prediction model, the heating energy consumption is remarkably reduced, and the problem of high energy consumption of an anti-icing and deicing system in the related technology is solved.

In a first aspect, a spar cap structure for a wind turbine blade is provided. The spar cap structure comprises a carbon fiber stack and a glass fiber stack. The carbon fiber stack comprises a plurality of layers of one or more carbon fiber components arranged one on top of the other forming rows of layers of one or more carbon fiber components and one or more conductive veils arranged between two consecutive rows of the layers of one or more carbon fiber components. The glass fiber stack comprises one or more layers of one or more glass fiber components, and conductive elements electrically connected to the conductive veils of the carbon fiber stack. The glass fiber stack is configured to accommodate a lightning receptor to be electrically connected to the conductive elements. Furthermore, the one or more conductive veils and the conductive elements are at least partially overlapped. In a further aspect, a wind turbine blade comprising one or more spar cap structures according to any of the examples herein is provided. In yet a further aspect, a method for manufacturing a spar cap structure and a wind turbine blade according to any of the examples herein is provided.

The invention discloses an anti-surge low-noise fan blade capable of adjusting the blade angle, and relates to the technical field of wind turbine blades. Comprising a hub body, a connecting rotating shaft is fixedly mounted on the hub body, the interior of the hub body is divided into a power source cavity, a mounting cavity and a driving cavity, an adjusting assembly is arranged in the driving cavity, wind turbine blades are mounted on the adjusting assembly, and blade empennages are fixedly mounted at the tails of the wind turbine blades; a notch is formed in the side edge of the wind turbine blade, a linkage assembly is arranged in the mounting cavity, and a flow guide assembly is arranged on the linkage assembly. Air flow is concentrated through synchronous rotation of the flow guide blades and the wind turbine blades, the flow characteristic of the air flow on the surfaces of the blades can be effectively improved through the design, lift force is increased, and noise is reduced. And the guide blades are combined with an angle adjusting mechanism of the blades, so that the adaptability is enhanced, and the using effect of the wind turbine blade is effectively improved.