1811results about "Wind motor combinations" patented technology

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 equipment detection, in particular to a wind turbine generator blade fracture damage detection method applying an inspection robot, which comprises the following steps of: S1, constructing a blade three-dimensional point cloud model and positioning the position of the robot in real time through a laser radar and a visual SLAM (Simultaneous Localization and Mapping) module carried on a robot body; s2, generating a spiral detection path covering the surface of the blade based on a path planning algorithm optimized by the genetic algorithm; s3, synchronously collecting blade surface data by adopting a multi-mode sensor array, wherein the blade surface data comprise pulse thermal imaging data, ultrasonic guided wave signals and high-resolution visible light images; s4, performing feature fusion on the acquired data through a deep convolutional neural network; through multi-modal sensor cooperative detection, deep learning feature fusion and digital twinborn evaluation technologies, full-process automatic detection from damage identification to life prediction is realized, the detection precision and efficiency are significantly improved, and reliable guarantee is provided for safe operation of the wind turbine generator.

The invention discloses a deep and far sea wind power foundation platform and load integrated system under extreme environment conditions, and belongs to the technical field of offshore wind power platforms. The system comprises a basic platform body, a multi-dimensional monitoring subsystem, an environment-load coupling analysis subsystem, an intelligent regulation and control execution subsystem, a safety early warning decision subsystem and a shore-based collaborative management subsystem. Through synchronous acquisition of extreme marine environment, basic platform structure load and operation state data, distributed multi-type sensor layout and high-frequency sampling, data acquisition comprehensiveness and timeliness are realized, monitoring data are fused, a coupling model is constructed, 24-hour load change is predicted, and the real-time performance of the system is improved. According to the method, the attitude of the platform is dynamically adjusted, bearing configuration is optimized, emergency protection is started, the limitation of traditional separation analysis and fixed regulation and control is broken through, and the risk disposal and operation and maintenance efficiency is improved through risk quantification and grading early warning, remote monitoring and intelligent scheduling of a shore-based collaborative management subsystem and four-level early warning accurate matching coping strategies.

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 discloses a wind power generation and gravity energy storage combined power supply system and method, and the system comprises a wind power generation unit, a gravity energy storage unit and an intelligent control unit. The gravity energy storage unit is dynamically controlled to store or release energy according to the difference value between the wind power generation real-time power and the threshold value, so that the combined output power is stable. The gravity energy storage unit adopts a symmetrical double-slope supporting tower and double-energy-storage structural design, and bidirectional conversion between electric energy and gravitational potential energy is achieved through a clutch mechanism. And the intelligent control unit dynamically adjusts the floating threshold by combining the predicted wind speed and the historical power fluctuation rate, so that the adaptability of the system to different wind fields is improved. The intermittent problem of wind power generation is solved through cooperative control of power generation and energy storage, the fluctuation amplitude of output power is reduced, peak clipping and valley filling can be achieved through a two-way energy conversion mechanism, energy release and power supply are achieved in the power demand peak period, energy storage is achieved in the valley period, the overall energy efficiency of a power grid is improved, and waste of energy in the power generation peak period is avoided.

The invention discloses a strong anti-overturning power generation device and method based on wind wave combined capture, and the device comprises a four-column type semi-submersible fan platform and a wind driven generator located above the four-column type semi-submersible fan platform, and the four-column type semi-submersible fan platform comprises hollow columns. The bottom of the hollow stand column is fixedly connected with the bottom of the outer side stand column through a horizontal column, a floating wave energy absorption system is arranged on the outer side of the outer side stand column, and the output end of the floating wave energy absorption system is connected with the input end of a power generator system through a bevel gear power generation system in the hollow stand column. One end of the floating wave energy absorption system is connected with the spring system in the hollow stand column; the core technical problems that an existing device is poor in stability, high in cost, low in efficiency, weak in adaptability and the like are solved.

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 relates to a transmission device, a transmission system, a wind generating set and a maintenance method, the transmission device comprises a shafting assembly and an interference magnitude adjusting device, the shafting assembly comprises a main shaft and a bearing, the bearing is arranged around the main shaft, an inner ring of the bearing is in interference fit with the main shaft, and the main shaft is provided with a hollow cavity. The interference magnitude adjusting device is arranged in the hollow cavity and used for applying acting force to the inner wall face, defined by the main shaft, of the hollow cavity, so that the main shaft deforms to adjust the interference fit amount between the main shaft and the inner ring of the bearing. The bearing ring running probability can be reduced, and the power generation benefit of the wind generating set is guaranteed.

The invention discloses an operation control method and device for a vertical axis wind turbine generator, and belongs to the technical field of wind power generation. The method comprises the steps that a pitch angle of a lower blade is driven to be gradually increased to a preset angle at a preset angular speed through a variable pitch controller; when the rotating speed of the wind wheel reaches the cut-in rotating speed, the optimal tip speed ratio is tracked until the rotating speed of the wind wheel rises to the rated rotating speed; when the rotating speed of the wind wheel reaches the rated rotating speed, the rotating speed of the wind wheel is stabilized at the rated rotating speed; when the driving torque under the action of the aerodynamic load continuously exceeds the rated torque of the generator and the rotating speed of the generator reaches an early-warning rotating speed threshold value, a shutdown control strategy is triggered; and under the shutdown control strategy, the connection between the generator and the power grid is cut off, and mechanical braking is applied, so that the wind wheel stops rotating. According to the technical scheme, smooth starting of the wind wheel, stable operation at the rated rotating speed and safe shutdown in the fault state are achieved, the starting and stopping capacity and power stability of the unit are effectively improved, the wind speed application range is expanded, and it is guaranteed that the whole-process operation of the unit is safe and reliable.

Provided are a multi-blade wind generator. The multi-blade wind generator relates to the technical field of wind power generation, and includes a bottom plate, where a bracket is installed at an upper end of the bottom plate, a working housing is installed at an upper end of the bracket, and a generator is arranged in a first working cavity inside the working housing, and a motor shaft of the generator is connected with a first rotating shaft through a speed-increasing and heat-dissipating mechanism; the first rotating shaft penetrates a front end of the working housing and is fixedly connected with a rotating drum, and the working housing is rotatably connected with the rotating drum, and a cavity is arranged in the rotating drum, and a motor is fixedly arranged in the cavity in the rotating drum, and the motor is fixedly connected with a first bevel gear.

The invention relates to the technical field of vertical axis wind driven generators, and discloses a control method, device and equipment of a vertical axis wind driven generator, a medium and a product. The control method of the vertical axis wind driven generator comprises the steps that according to historical environment data around a target vertical axis wind driven generator and historical operation data of the target vertical axis wind driven generator, the target vertical axis wind driven generator is controlled; determining a target relationship between the environmental condition and the optimal operation parameter combination; according to the current environment data around the target vertical axis wind turbine, predicting the environment trend in the preset time period to obtain environment prediction data; determining a target operation parameter combination according to the environment prediction data and a target relationship between the environment condition and the optimal operation parameter combination; the target vertical axis wind turbine is controlled according to the target operation parameter combination in the preset time period, the target vertical axis wind turbine is controlled according to the dynamic environment change, and the power generation efficiency is improved.

The invention belongs to the technical field of wind power generation, and particularly discloses a wind energy directional rectifier which comprises a body and at least one airflow channel, the body is provided with at least one airflow channel in the extending direction of the central axis, and the body and the airflow channels are each of a streamline gradual change structure and have the same gradual change direction. Comprising a device for converting the wind energy rectified by the wind energy directional rectifier into mechanical kinetic energy to drive a generator to generate electricity. Wind energy in different directions is collected through the wind energy directional rectifier and then converged together to become high-speed jet flow consistent in direction and stable in flow speed, then the high-speed jet flow is converted into mechanical kinetic energy through the power conversion structure, finally the generator is driven to generate electricity, the wind energy utilization efficiency of the wind power conversion device is effectively improved, and the wind energy utilization efficiency is improved. The power generation efficiency of the wind-power conversion device is improved.

According to the fault early warning system for the wind power booster station provided by the invention, the limitation of traditional single-point monitoring is broken through by fusing the infrared ultrasonic technology and the ultrahigh frequency technology through the non-contact sensor, so that the early fault detection rate is greatly improved; the composite heat dissipation system suppresses the temperature rise of a transformer hot spot based on a dynamic heat management mechanism of a phase change material and a heat pipe, and the energy-saving efficiency is improved; the edge calculation early warning center converts temperature, partial discharge, strain and other multi-source heterogeneous data into a unified health degree index through a weighted fusion algorithm, and in combination with an equipment topology correlation analysis model, the positioning accuracy of a fault source is greatly improved, and the early warning response time delay is greatly reduced.

The invention discloses novel wind-gathering wind power generation equipment, relates to the technical field of wind power generation, and solves the technical problems of low wind energy utilization efficiency, huge structure and limited application scene in the existing technical scheme. The novel wind-gathering wind power generation equipment comprises a main base, a stand column is arranged on the upper wall surface of the main base, and a wind gathering barrel is arranged on the stand column; according to the wind power generation device, the wind gathering cover and the wind gathering barrel with the input end area far larger than the output end area are arranged, incoming flow air can be effectively gathered and accelerated, the wind speed acting on the wind power fan blades is remarkably increased, and the wind power generation device has the advantages that the wind power generation device is high in wind power generation efficiency; the utilization rate of wind energy resources is greatly improved; the whole structure is very compact, the occupied area is small, the device can be flexibly applied to a mobile carrier with limited space, for example, the device is installed on a vehicle roof to generate power through driving wind or installed on a ship deck to provide auxiliary power, and a brand new application field of mobile energy regeneration is developed.

The invention provides a serial-parallel double-wind-wheel wind turbine generator scaling simulation device which comprises a wind wheel and cabin scaling model, a slide rail variable-pitch platform, a yaw supporting tower and a multi-degree-of-freedom floating simulation motion platform, and can realize flexible adjustment of wind wheel spacing, rotation direction, wind wheel size and the like among different double-wind-wheel set configurations. The problem that an existing wind turbine generator scaling experiment device cannot provide dynamic characteristic test conditions of a double-wind-wheel wind turbine generator is solved, the real operation states of serial and parallel double-wind-wheel sets can be simulated, and the function that the same device can carry out tests on dynamic response characteristics and control strategies of sets with different double-wind-wheel configurations is achieved. The test cost of the double-wind-wheel wind turbine generator is reduced, and effective development verification and performance verification conditions are provided for researches on coupling characteristics between double wind wheels, cooperative control strategies of the double-wind-wheel wind turbine generator and the like.

The invention discloses a high-altitude wind power generation system which comprises a main air bag extending in the front-back direction, and the peripheral face of the main air bag is a rotary face; the ring wing sleeves the radial outer side of the main air bag and is spaced from the main air bag, and a duct space is formed between the inner wall of the ring wing and the outer wall of the main air bag; the first supporting frame and the second supporting frame are sequentially arranged on the radial outer side of the main air bag in a sleeving mode in the axial direction of the main air bag; the wind power assembly is mounted on the first supporting frame; the first supporting frame comprises a plurality of supporting units, an annular supporting frame with an inner ring and an outer ring is defined by the multiple supporting units, the annular supporting frame comprises ducts formed between the adjacent supporting units, and the wind power assembly is installed in the ducts; the second supporting frame is of an annular grid truss structure and comprises a main body frame and truss rod pieces assembled in the main body frame through truss nodes, and the truss rod pieces and the truss nodes are modularly expanded to form the grid truss structure.

The invention relates to the technical field of highway lighting, and particularly discloses a photovoltaic lighting structure for a central isolation strip of an expressway, the photovoltaic lighting structure comprises a plurality of foundation columns fixedly mounted on a highway pavement and a plurality of wave baffles mounted on the foundation columns, and a plurality of light holes are formed in the wave baffles; the lighting mechanism is arranged on the outer side of the outer wall, close to one side of the foundation column, in the wave baffle; the power mechanism is arranged in the middle of the road and can receive airflow flowing power generated when the two-way traffic flow passes through, convert the airflow flowing power and transmit the airflow flowing power to the lighting mechanism. The photovoltaic mechanism is arranged between the power mechanism and the lighting mechanism and used for providing electric energy for the lighting mechanism. The light-transmitting pieces can correspond to the light-transmitting holes in position, light of the lighting mechanism penetrates through the light-transmitting pieces to be projected on the road surface, and a plurality of warning irradiation areas with different distances from the wave baffle are formed. According to the invention, an integrated photovoltaic illumination structure with autonomous energy supply, anti-dazzle and accurate projection warning is realized.

A method for damping drivetrain vibrations of a wind turbine. The drivetrain has, at least, a rotor and a generator. The method includes receiving a first rotational speed signal at a first location along the drivetrain, the first rotational speed signal being a proxy for rotor speed of the rotor. The method also includes receiving a second rotational speed signal at a second location along the drivetrain, the second location being downwind from the first location, the second rotational speed signal being a proxy for generator speed of the generator. Further, the method includes determining a speed error based on a comparison of the first and second rotational speed signals. Moreover, the method includes determining a torque deviation signal for the wind turbine configured to dampen the drivetrain vibrations when the speed error exceeds a first speed threshold. In addition, the method includes applying the torque deviation signal to the generator to dampen the drivetrain vibrations.

The invention discloses a wind turbine group wake flow control method based on radar wind measurement, and the method comprises the following steps: S1, radar wind measurement: installing laser wind measurement radars on cabins of an upstream wind turbine generator and a downstream wind turbine generator, and enabling the laser wind measurement radars to collect wind direction data in real time; and S2, multi-machine radar data fusion and whole wind flow field reconstruction are carried out, radar wind measurement data of upstream and downstream wind turbine generators are synchronously collected, a three-dimensional wind flow field of a wind direction area of the wind power plant is reconstructed, and the three-dimensional wind flow field outputs whole-field unified wind field indexes as wake flow model input data. The method has the advantage of being good in control effect, and solves the problems that when wake flow of an existing wind turbine group is controlled, self-adaptive adjustment is inconvenient to carry out on upstream and downstream wind turbine units according to radar wind measurement data, so that upstream and downstream fans are lack of cooperation, the wake flow control efficiency is affected, and the power generation benefits of the upstream and downstream fan groups are reduced.

A bridle system and roll control sheave for quickly and accurately directing the roll of an airborne wing in an airborne wind energy system is disclosed. A pair of medial bridle segments are connected to a sheave which is placed within the fuselage. A roll control motor is preferably connected to the sheave and is controlled by an electronic controller to rotate and change the relative lengths of the medial bridle segments.

A carousel lifting tower may facilitate assembly of a wind turbine generator (WTG) and other constructs. In one example, the carousel lifting tower includes a tower, which may be positioned in an upwardly angled orientation, and which may define a tower axis. In the example, the carousel lifting tower further includes a lift frame, which may be movably mounted on the tower to allow translation of the lift frame along the tower axis. Additionally, in the example, the carousel lifting tower includes a carousel coupled to the lift frame. The carousel may rotate about the tower axis. Moreover, in the example, the carousel lifting tower includes a load handler on the carousel. The load handler may releasably engage with a component to be lifted.

According to the monitoring system for the control parameter transaction of the wind generating set provided by the invention, a closed-loop system with parameter baseline management, multi-source time sequence data synchronous acquisition, intelligent anomaly detection, credibility quantitative evaluation, distributed auditing and adaptive processing is constructed, so that comprehensive, real-time and deep monitoring on the control parameter state of the wind generating set can be realized; hysteresis and one-sidedness of a traditional method in transaction detection are effectively overcome; according to the method, multi-dimensional features are fused to perform comprehensive evaluation and generate quantitative credibility indexes, so that the accuracy and reliability of anomaly recognition are remarkably improved, and the false alarm rate is reduced; furthermore, grading response and automatic repair decision making are triggered based on credibility indexes, and transactional operation verification and distributed auditing evidence storage are assisted, so that the full-process automatic management capability of parameter transaction from perception, decision making and execution to verification and auditing is finally formed. And the safety, the stability and the operation continuity of the control system of the wind generating set are greatly enhanced.

The integrated hybrid system for managing the production, flow, consumption and storage of energy is characterised in that it comprises a cryogenic liquefied air energy storage (7), to which, either upstream and / or downstream of the compressor, an system for transporting oxygen (D) obtained from the electrolyzer (11) is connected, while an system supplying heat (B) obtained during combustion of gas in the trigeneration unit (9) is incorporated in the liquid air and / or oxygen expansion station of the cryogenic liquid air energy storage (LAES) (7), wherein all energy processing and storage units are incorporated in the control and supervision system, collecting data in real time, monitoring the production, consumption and demand for electrical energy, and intelligently controlling energy flow between generation sources, powered devices and energy storage units.

The disclosure relates to a floating wind turbine platform, comprising: a substantially triangular hull configurable to support a wind turbine tower; the hull comprising a first, second and third column, the first, second and third columns being connected by a first, second and third pontoon member, as well as by a first, second and third connector.

Offshore wind turbine systems and processes for installing same. The system can include a wind turbine generator that can include a plurality of blades connected thereto. The system can also include a first support arm and a second support arm each having a first end and a second end. The system can also include a support structure that can be configured to float on a surface of a body of water that can include first, second, and third columns. The first end of the first support arm and the first end of the second support arm can each support the wind turbine generator at an elevation above the support structure. The second end of the first support arm can be connected to and supported by the first column. The second end of the second support arm can be connected to and supported by the second column.

The invention discloses a composite wind energy collector, which relates to the technical field of energy collection, and comprises a driving assembly, and the driving assembly comprises a shell, a rotating shaft, a wind cup, a bearing and a placing disc; the power generation assembly comprises an electromagnetic assembly, a piezoelectric assembly and a friction assembly. The device has the beneficial effects that on the basis of combination of electromagnetic energy collection and piezoelectric energy collection, the friction power generation process is additionally added, on one hand, the energy utilization rate is increased through electromagnetic energy collection and piezoelectric energy collection, energy collected by electromagnetic energy is small in voltage and large in current, energy collected by piezoelectric energy is large in voltage and small in current, and the energy utilization rate is increased; the two kinds of energy complement each other, on the other hand, alternating force is applied to the magnetic poles on the piezoelectric plates through the magnets, frequency conversion on piezoelectric energy collection is achieved, the wind cup does not generate electricity through friction when wind is small and electricity is not needed, the rotating speed of the wind cup is reduced while electricity is generated through friction when wind is large, and sufficient conversion of the energy is ensured.

The invention discloses an intelligent brake control system and a high-cold-wind wind generating set, and relates to the technical field of wind energy industries. A sensor module is used for collecting airflow parameters, blade state parameters and wind wheel operation parameters in real time, and a controller is in signal connection with the sensor module; the controller is used for being installed in a control cabinet at the bottom of a tower of the high-cold-wind wind generating set, the controller is configured to judge whether an extreme strong wind protection mode is triggered or not according to collected parameters, the executing mechanism is in communication connection with the controller, and the mechanical brake is used for being installed at a main shaft brake disc of the high-cold-wind wind generating set. The variable-pitch driving device is used for being integrated in a hub of the high-cold-wind wind generating set so as to be used for adjusting the pitch angle of a blade, and the executing mechanism is configured to execute a mechanical brake control strategy in an extreme strong wind protection mode and control a mechanical brake to be separated from a brake disc after the blade feathering and wind wheel rotation speed are reduced to a safe rotation speed. And the wind wheel in the feathering state is in a free rotation state.

This invention relates to the field of wind power generation technology and provides a combined wind power generation device, including a base and a connecting block rotatably mounted on the base; a tower fixedly mounted on the top of the connecting block; a generator for wind power generation mounted on the top of the tower and wind blades mounted on the generator; several collection nets respectively located on both sides of the tower for collecting sea fog; water collection troughs respectively installed at the bottom of the collection nets for centralized drainage; and a servo motor fixedly mounted on one side of the base for driving the tower to rotate and storing the wind blades, the output shaft of the servo motor being fixedly connected to the rotating shaft of the connecting block. The combined wind power generation device provided by this solution can achieve the dual functions of wind power generation and sea fog collection, while also providing storage for the equipment to prevent damage in extreme weather conditions, and featuring multiple reinforcement and auxiliary support designs to ensure operational safety.

A wind turbine with adaptive nacelle preferably includes a geared blade shaft; and at least one reciprocating generator unit. The geared blade shaft includes a plurality of blade magnets attached to an outer perimeter of the blade shaft, which extend a portion of a length of the blade shaft. Each reciprocating generator unit preferably includes an intermediate magnetic gear, at least one magnetic generator gear, at least one electrical generator, at least one actuator and a retention frame. The intermediate magnetic gear and the at least one generator magnetic gear are pivotally retained in the retention frame. The at least one electrical generator is retained on the retention frame. The at least one actuator is used move the reciprocating generator unit to engage rotation of the geared blade shaft with the intermediate magnetic gear. Rotation of the geared blade shaft causes rotation of the electrical generator.

The invention provides flight wind energy unit equipment, a flight acting device, a flight control device, a flight connection assembly and a flight control method. The flying wind turbine equipment (1000) comprises a floating device (1100) and a transmission cable (1300). The floating device (1100) is used to lift off so as to lift the flight crew equipment (1000) to a predetermined height. The transmission rope (1300) is arranged around the upper pulleys (1500-1, 1500-3) close to the side of the floating device (1100) and the lower pulleys (1500-2, 1500-4) close to the side of the fixed base structure (2000). The flying wind turbine arrangement (1000) further comprises a first and a second flying work device (1400-1, 1400-2) fixedly connected to the transmission cable (1300) on both sides, respectively. The first flight acting device (1400-1) and the second flight acting device (1400-2) are arranged to be capable of alternately flying up and down in a reciprocating mode so as to drive the transmission rope (1300) to move in a reciprocating mode. The flying wind turbine assembly (1000) of the present invention enables continuous work in any wind direction and transmits mechanical work to the fixed base structure (2000).