3053results 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 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.

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 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.

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.

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 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 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.

The invention provides a wind turbine generator system and a using method thereof.The wind turbine generator system comprises a telescopic wind turbine blade system and a lifting tower drum system, and the telescopic wind turbine blade system and the lifting tower drum system are dynamically adjusted through a linkage control system; the telescopic wind power blade system comprises a main blade structure and an extension blade part. The liftable tower drum system comprises a tower drum total structure, a lifting mechanism and a control unit; the control unit is electrically connected with the electric driving mechanism and the lifting mechanism; the lifting mechanism is arranged at the bottom of the tower tube total structure and used for driving the inner section of the tower tube total structure to stretch out and draw back along the outer section. Through linkage of the telescopic wind power blade system and the lifting tower drum system, the length of the blade and the height of the tower drum can be dynamically adjusted according to the real-time wind speed. At low wind speed, the wind sweeping area is enlarged, the hub height is increased to capture more wind energy, and at high wind speed, the wind load is reduced, the stress concentration is reduced, and the safety is enhanced.

The present application relates to the field of wind power generation technology, and discloses a ducted double turbocharged windmill, which comprises a duct and a blade type rotating structure arranged in the duct. The duct comprises a first contraction section, a first straight section, a second contraction section and a second straight section in sequence along the wind direction, and the diameter of the first straight section is greater than that of the second straight section. The blade type rotating structure comprises a rotating shaft, a primary turbine and a secondary turbine arranged on the rotating shaft, the primary turbine and the secondary turbine are arranged in the first straight section and the second straight section respectively, and the rotating shaft is connected with a generator through a transmission structure. The present application improves the structure of the blade type rotating structure and the duct, and realizes that the turbine fan at the front end drives the turbine fan at the rear end to rotate, so as to improve the wind energy utilization rate.

The invention provides a horizontal-shaft multi-barrel type wind power generation device and a using method thereof.The horizontal-shaft multi-barrel type wind power generation device comprises at least one rotating shaft and a plurality of hollow barrels which are sequentially arranged in the axial direction of the rotating shaft, and a plurality of inclined ventilation holes are formed in the surface of each barrel; positive and negative pressure difference generated by the ventilation holes drives the barrel bodies to rotate around the rotating shaft, the multiple barrel bodies are arranged at intervals to achieve cascade driving of wind energy, the rotating shaft is connected with a power generator, and the power output of the power generator is adjusted through a microprocessor control system. Through the hollow barrels sequentially arranged along the rotating shaft and the vent holes obliquely formed in the barrels, the barrels are driven to rotate through the wind pressure difference, and wind energy is effectively captured. Adjacent barrel bodies are arranged at proper intervals, airflow interference is avoided, and the wind energy conversion efficiency is improved. The rotating shaft is directly connected with the permanent magnet synchronous generator, efficient mechanical energy-to-electric energy conversion is achieved, and the system stability is high.

A full-circumferential wind gathering device comprises a wind gathering structure, a Venturi tube acceleration structure and a wind blocking structure. The air collecting structure comprises a body, a plurality of upper-stage guide vanes and a plurality of lower-stage guide vanes, the upper-stage guide vanes and the lower-stage guide vanes are arranged on the body and arranged in a staggered mode, the lower end of the body is connected with the upper end of the Venturi tube acceleration structure, and the air blocking structure is fixed to the lower end of the Venturi tube acceleration structure. Wind is blown from the direction parallel to the ground, captured by the upper blades and guided into channels between the upper blades on the windward side, after airflow enters the channels, the speed is gradually decreased, airflow kinetic energy is converted into pressure energy, and the pressure energy is gathered and compressed at the arc-shaped concave position of the inner taper pipe to form an inlet high-pressure area. According to the two-stage staggered type inlet guide vane structure and the layout optimization method thereof, two-stage staggered type key improvement is conducted on the inlet guide vane structure, adaptive adjustment is conducted on the overall structure layout of the inlet guide vane structure, all-circumferential incoming flow convergence is achieved, and the wind gathering acceleration effect of the device is improved.

The invention discloses a fan blade detecting and deicing system and method. The fan blade detecting and deicing system comprises a detecting unit, a deicing unit and a control unit. The detection unit comprises an icing detection assembly, an icing thickness detector and a temperature sensor are arranged in the icing detection assembly, the icing thickness detector detects icing thickness data of the blade surface in real time, and the temperature sensor detects temperature data of the fan blade surface in real time; the deicing unit comprises an electric heating film which is at least laid on the front edge of the blade in the length direction of the blade. And the control unit comprehensively analyzes the icing thickness and temperature change condition corresponding to the whole blade according to the icing thickness data and temperature data of the blade surface, and independently triggers and controls the heating state of each blade deicing unit based on the comprehensive analysis result. According to the fan blade detecting and deicing system and method, the precise monitoring function, the intelligent deicing strategy and stable and safe operation are integrated, and the wide application and popularization value is achieved.

The utility model discloses a blade for wind power generation, and belongs to the technical field of wind power. The blade comprises a first blade section and a second blade section which are independent of each other, a first section is arranged at the tail end of the first blade section, a second section is arranged at the head end of the second blade section, and the first section and the second section are connected in an assembled mode through a mechanical connecting assembly and an inclined glue joint layer. The mechanical connecting assembly comprises a plurality of single connecting structures which are distributed on the upper side, the lower side and the front edge area of the blade section. An included angle of 30 degrees is formed between the fracture surface and the axis of the blade; the distance between the setting position of the section and the root of the blade is 30-35% of the length of the whole blade; local reinforcing skins are laid on the transition area of the blade root and the easily-damaged area at the position 1 / 3 away from the blade tip. According to the utility model, a mixed connection mode can be adopted, the advantages of the two connection modes can be integrated, and the connection strength is ensured while the weight of the segmented blades is reduced.

A passive vehicle drag reduction system including an airflow capture inlet, a flow consolidating conduit, an air driven rotor assembly, and one or more flow exhaust conduits. The airflow capture inlet defines an airflow capture inlet direction. The flow consolidating conduit is close sided. The air driven rotor assembly has a rotor assembly inlet and an air driven rotor. The rotor assembly inlet defines a rotor airflow inlet direction. The air driven rotor has a laterally extending rotation axis transverse to the rotor airflow inlet direction and one or more air redirecting blades defining one or more rotor airflow outlet directions substantially parallel to the rotation axis. Each of the one or more flow exhaust conduits has a redirecting exhaust outlet located laterally of the air driven rotor assembly. The redirecting exhaust outlet defines an exhaust outlet airflow direction that is substantially parallel to the airflow capture inlet direction.

The invention relates to the technical field of wind power generation, and particularly discloses a train-mounted ducted airflow coupling wind energy recovery power generation system and method. The train-mounted ducted airflow coupling wind energy recovery power generation system comprises N ducted windmills which are sequentially connected through connecting assemblies; the supporting assemblies are in one-to-one correspondence with the ducted windmills; the supporting assembly is used for supporting the ducted windmill and can achieve rotation and turning of the ducted windmill. The energy storage devices are in one-to-one correspondence with the ducted windmills, and the energy storage devices are connected with generators in the ducted windmills through cables; the connecting assembly comprises a first fixing part, a connecting section and a second fixing part; the first fixing part is connected with the outlet end of the ducted windmill, the second fixing part is connected with the inlet end of the ducted windmill, and the two ends of the connecting section are detachably connected with the first fixing part and the second fixing part respectively. The multiple ducted windmills are connected in series and installed on the train, the ducted windmills can rapidly turn around based on different driving directions, and the ducted windmills can be used for train power generation.

In a first aspect of the present invention there is provided a wind turbine comprising a tower, a nacelle mounted on the tower, and a rotor mounted to the nacelle. The rotor comprises a hub and at least three wind turbine blades. Each blade extends between a root and a tip. Each blade further comprises a connection point located between the root and the tip. The wind turbine further comprises a plurality of blade connecting members, each blade connecting member being connected between corresponding connection points of a pair of wind turbine blades. The wind turbine further comprises a tensioning system for adjusting the tension in each blade connecting member. The tensioning system comprises a plurality of linear actuators, each linear actuator being coupled between the hub and a respective blade connecting member. Each linear actuator is configured to adjust the tension in the blade connecting member.

The invention provides for controlling a wind turbine comprising pitch-adjustable rotor blades. The invention involves determining, based on detected wind conditions, wind turbine control parameters for controlling the wind turbine in accordance with a defined wind turbine control strategy, where the control parameters include a reference pitch angle for the rotor blades. The invention involves obtaining bearing control parameters each indicative of a parameter for controlling pitch bearings of the wind turbine that is for adjusting pitch of the rotor blades. The invention involves determining whether a defined set of operational parameters of the wind turbine, including the bearing control parameters, in combination correspond to a combination of operational parameters defined to be indicative of a level of wear above a threshold wear level. The pitch bearings are then controlled based on the reference pitch angle and on the threshold determination.

A wind turbine nacelle includes a stub mast, a frame rotatably mounted on the stub mast, and a yaw drive system that rotates the frame to adjust orientation of the frame. The yaw drive system includes a yaw brake assembly positioned coaxially with the stub mast that exerts a constant braking torque on a brake disk connected to the frame and has a brake pad with a coefficient of friction that creates the braking torque without slipstick.

The invention belongs to the technical field of wind turbine blade anti-icing and deicing, and particularly relates to a carbon nano tube-graphene composite electric heating anti-icing and deicing system which comprises a composite electric heating layer laid on the surface of a wind turbine blade base body and used for generating heat, and the composite electric heating layer sequentially comprises a base layer, a composite conductive layer and an insulation protection layer from inside to outside. The electrode assembly is arranged on the composite electric heating layer and used for supplying power to the composite conductive layer; the ice layer monitoring module is configured to monitor the thickness of the ice layer on the surface of the blade and the environment temperature; and the power supply control module is electrically connected with the electrode assembly and the ice layer monitoring module and is configured to control power supply parameters of the electrode assembly according to the ice layer thickness and the environment temperature. By optimizing the structure of the composite conductive layer and improving the electrode arrangement and intelligent control mode, the thermal response speed is increased, the heating uniformity is optimized, the energy consumption is reduced, the service life is prolonged, and the device adapts to the complex working condition of the wind turbine blade.

The invention relates to method repairing defect regions (401) which have developed during manufacturing of a wind turbine blade component (599). The method involves the steps of preparing a layered fiber material structure (600) for the wind turbine blade component; arranging a vacuum bag (402) over the layered fiber material structure; applying a vacuum assisted resin infusion process; recognizing a defect region below the vacuum bag which has not been sufficiently infused with resin; placing a piercing device on the vacuum bag; sealing an area covering the piercing device (501) and at least a part of the defect region with a repair bag (502) so that the repair bag forms an airtight envelope over the piercing device; piercing the vacuum bag with the piercing device; and extracting air out of the repair bag to force the resin from locations surrounding the defect region to flow into the insufficiently resin infused part of the layered fiber material structure.

A wind turbine arrangement, that includes: a wind turbine blade; an inflatable platform positioned in the wind turbine blade; and an inflatable outer pressure ring surrounding the platform, wherein the outer pressure ring, when inflated with a gaseous fluid, fixes the platform in the wind turbine blade by generating a normal friction force between the platform and the wind turbine blade. In a first wind turbine arrangement, after the platform has been inflated with a gaseous fluid, the inflated platform includes a material that contains the gaseous fluid and is continuously distributed throughout the area defined by a circular or oval shape of the platform. In a second wind turbine arrangement, the platform comprises a fibrous material disposed in the platform. In a third wind turbine arrangement, a tarpaulin edge is positioned above the platform and positioned interior to the outer pressure ring.

The electro-mechanical actuator of a wind turbine is configured to be powered from a DC link intermediate circuit. A method for controlling the actuator includes: determining whether a voltage demand and a power demand for operating the electro-mechanical actuator at a specific operating point can be met by an output of a first converter. The first converter is connected to a supply grid and configured to provide a first voltage and a first power to the DC link intermediate circuit; and, when the voltage demand and the power demand cannot be met, triggering a boost mode of a second converter connected between the DC link intermediate circuit and an energy store. The boost mode is triggered to: boost the voltage at the DC link intermediate circuit to a second voltage; and, boost the power supply to the electro-mechanical actuator via the DC link intermediate circuit to a second power.

The invention provides a blade root structure and a preparation method, and relates to the technical field of wind power blades. According to the blade root structure, the first connecting piece is arranged, and the first connecting part is arranged on the first connecting piece; a second connecting part is arranged on the blade root flange, and the first connecting part is connected with the second connecting part; the first connecting part is embedded in the blade root laying body, the first connecting part is located on the outer side of the blade root laying body, and the end face of the blade root flange is connected with the blade root laying body through the gap filling part. According to the application, the first connecting part and the second connecting part are firstly connected, so that the first connecting piece and the blade root flange are mutually restrained, the relative position and the relative movement of the first connecting piece and the blade root flange are limited, and the situation that the first connecting part and the second connecting part are stressed unevenly due to an assembly inclined gap caused by unevenness of the blade root laying body and the end face of the first connecting piece is avoided.

The present disclosure relates to methods (40) and assemblies for installing a bushing (50) in a root (16) of a wind turbine blade (10). The present disclosure further relates to methods (40) and assemblies for replacing a bushing of a wind turbine blade (10). A method (40) comprises providing (41) a bushing hole (51); inserting (42) a bushing (50) wrapped in a reinforcement fabric (52) in the hole (51), the bushing (50) being closed at a tip end portion. The method (40) further comprises creating (43) vacuum in the hole (51), infusing (44) the reinforcement fabric (52) with resin, and curing the resin.

A hybrid solar chimney to provide energy gain, wherein at least one chimney (2) which the suction-draft process (vacuum effect) is created of the air whose density is reduced by the horizontal wing (11) and at least one greenhouse (3) to heat the air in the chimney (2).

A fusing type disengaging device of a wind power blade turbulent flow element is characterized in that a half rope ring, close to one side of a hub, of a rope is arranged in a rope winding ring groove in the outer wall of an end cover of a sleeve in a sleeving mode, a fusing assembly in the end cover is provided with a power supply device and a plurality of conducting strips, and conduction can be avoided through the elastic force of a torsional spring in a locking state; the pawl disc can rotate relative to the ratchet wheel disc to the separation position where the pawl and the ratchet are mutually blocked, at the moment, due to the fact that the conducting strips stay to the mutual contact position after rotating, the conducting parts at the two ends of the power supply device can be mutually conducted to form a heating loop, and heat of the heating loop can be transmitted to the rope winding ring groove to burn out the positioning rope. Therefore, the positioning rope can be separated from the end cover, the turbulent flow element can be reliably and efficiently separated from the wind power blade, an operator only needs to pull the traction rope at will, and the workload in the wind power blade installation process is greatly reduced.