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Bidirectional wind blade generator


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CN203632515U

The utility model discloses a bidirectional operated generator which comprises a fixed shaft, a housing, magnets and a coil. An internal rotor is connected to the fixed shaft via bearings, the coil is arranged on the internal rotor, an external rotor composed of the housing is mounted on the fixed shaft via the bearings, the magnets are mounted in the external rotor, and a carbon brush

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Effect of Blade Design on Angular Velocity of Vertical Axis Wind

blade with curved profile was most suitable for bidirectional wind flow as it gains stable velocity sooner which is an important factor for power generation. Keywords.

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Variable cross-sectional effect on bi-directional blades–tower–soil

Variable cross-sectional effect on bi-directional blades–tower–soil–structure dynamic interaction on offshore wind turbine subject to wind–wave loads November 2023 Beni-Suef University

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US20080197639A1

a bidirectional wind turbine includes a generator for generating electricity including a first rotatable power element, which may include a field element or stator, and a second rotatable power...

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Vibration suppression of a floating hydrostatic wind

Simulation results of rotor speed and generator power for the hydrostatic wind turbine (HWT) (blue dashed lines), HWT with bidirectional tuned liquid column mass damper (BTLCMD) (black solid lines), and HWT with

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Performance parameters of a bi-directional wind turbine

In many regions, a combination of meteorology and topography produces a wind regime which is nearly bi-directional. In such a regime, a wind turbine w

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(PDF) Harvesting wind gust energy with small and medium wind

This article presents the possibility of increasing the efficiency of a vertical-axis wind generator through the introduction of an automatic control system for the angle of attack of the blades.

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Design and optimization of a bidirectional rim-generator turbine

The study carried out by Miller has shown that the discharge capacity of the rim-generator can be 10% greater than that of Kaplan turbine (Miller). The development of the rim-generator has also experienced from adjustable blade to the non-adjustable blade, and the unit has been considerably optimized to overcome its shortcomings (H ö tzl, 2018).

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Design and Implementation of Bi-Directional DC-DC Converter for Wind

blades is A and the turbine slows the wind from speed v1 (wind speed at the entrance of the rotor blades) to v2 (wind speed at the exit of the rotor blades). Since A2 > A1 then v1 > v2. It can be noted from the previous equation that the power of the wind varies linearly with the air area swept by rotor blades and with the cube of wind speed.

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CN101397974A

The invention discloses a caterpillar-type wind engine generating set with a plurality of blades and chain belts as well as bidirectional rotation, which is characterized (a caterpillar-type...

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Structural Optimisation of 3D Printed Small Diffuser Augmented Wind

The bi-directional evolutionary layout optimisation method was applied to the design of a 3D printed blade suitable for a diffuser augmented wind turbine and a 15% reduction in blade mass was achieved without compromising its structural integrity. This paper briefly describes the optimisation method and presents the results of the theoretical structural

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Bidirectional vibration control for fully-coupled floating offshore

In the present study, a 3d-PTMD and 2TMDs are adopted to mitigate Bidirectional vibrations of 5 MW DeepCwind semi-submersible offshore floating wind turbine under misaligned wind-wave loading.A fully coupled dynamic model of a floating wind turbine was established using SIMPACK multi-body dynamics software, which includes aerodynamic,

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A centimetre-scale bi-directional wind turbine for energy

A centimetre-scale bi-directional wind turbine for energy harvesting applications: design and experimental tests, Gisella Tomasini, Davide Tarsitano, Stefano Giappino /diagnostic of railway vehicles are designed, built and tested in a wind tunnel. Two rotors, having four airfoil blades with a diameter of 3 and 4 cm, are designed following

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Bi-directional vibration control of offshore wind turbines using a

Offshore wind turbines suffer from excessive bi-directional vibrations due to wind-wave misalignment and vortex induced vibrations. However, most of existing research focus on unidirectional

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Towards next generation Savonius wind turbine: Artificial

The turbine is spun by these blades, which use the wind'' push force [19]. The blades are propelled, in the airflow direction by the drag force. As the wind blows, they continue to spinning. Savonius turbines are also known as low-speed wind turbines because they work best when the wind speed is between 4 and 10 m/s [29]. A small generator is

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US20080197639A1

US20080197639A1 - Bi-directional wind turbine - Google Patents Bi-directional wind turbine Download PDF Info Publication number blades generator wind turbine coupled Prior art date 2007-02-15 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation

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Vibration reduction and energy harvesting of monopile offshore wind

Offshore wind turbines (OWTs) subjected to combined wind and wave loadings experience excessive bi-directional vibrations that adversely influence the system performance and the structural integrity.

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Design, Modeling, and Control of a Novel Hybrid-Excited Flux

Abstract: This paper proposes a novel hybrid excited generator, which is suitable for a variable-speed wind power generation system. Two sets of excitation sources are employed, which are

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Change the history of renewable energy, change the world Tornado Wind

This is new! Gaining an International Permit, the Tornado Wind Turbine Blade Structure (Wind Flow) Bidirectional generator Generator Coil Generator Magnet Both upper and lower level blades have their own coil and magnet and when rotated bidirectionally it doubles their relative speed. The structural is stabilized by a gyroscoping effect which

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Bi-Generator vertical wind turbine

Hardware needed for inserting in the device once it is 3d printed. - The number of bearings that are needed for the device are 13 units (8x22x7) - The DC motor used is a Hilitand 31ZY 24V/3.500RPM permanent magnet. This Bi-Generator VAWT have simple printable parts and it is very easy to assemble. In any case there is a bunch of 3d pics that helps visually step

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Vibration suppression of a floating hydrostatic wind turbine model

Simulation results of rotor speed and generator power for the hydrostatic wind turbine (HWT) (blue dashed lines), HWT with bidirectional tuned liquid column mass damper (BTLCMD) (black solid lines), and HWT with bidirectional tuned liquid column damper (BTLCD) (red dotted lines) in the event E3 [Colour figure can be viewed at wileyonlinelibrary ]

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A centimetre-scale bi-directional wind turbine for energy

In this work, new cm-scale wind turbines for powering sensor nodes devoted to monitoring/diagnostic of railway vehicles are designed, built and tested in a wind tunnel. Two

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CN103206345A

The invention aims to overcome defects of low wind energy utilization and conversion efficiencies of wind driven generators at present. The technical scheme includes that two sets of...

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The Science Behind Wind Blades and How They Work

How Wind Blades Work. Wind turbine blades transform the wind''s kinetic energy into rotational energy, which is then used to produce power. The fundamental mechanics of wind turbines is straightforward: as the wind moves across the surface of the blade, it causes a difference in air pressure, with reduced pressure on the side facing the wind and greater

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Prediction of wind turbine blades icing based on feature

Wind turbine blades icing detection has the very practical effect for ensuring the safety, reliability, and stability of operation. The drawbacks of traditional icing prediction methods that are established using complex mathematical models require manual extraction of features. The ReliefF and one-dimensional convolution and stacked bidirectional Gated Recurrent Unit

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A method to optimise the materials layout of small wind turbine

The bi-directional evolutionary optimisation technique was applied to the existing structure of a 2.5 m composite blade from an Aerogenesis 5 kW wind turbine. The optimisation

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Integrated bi-directional vibration control and energy harvesting of

Offshore wind turbines (OWTs) subjected to combined wind and wave loadings experience excessive bi-directional vibrations that adversely influence the system performance and the structural integrity.

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Wind Turbine Blade Icing Prediction Using Focal Loss Function

Blade icing seriously affects wind turbines'' aerodynamic performance and output power. Timely and accurately predicting blade icing status is crucial to improving the economy and safety of wind farms. However, existing blade icing prediction methods cannot effectively solve the problems of unbalanced icing/non-icing data and low prediction accuracy. In order to

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US to test wind turbines that generate power even with gentle

For more than 15 years, Japan has used vertical coaxial contra-rotating twin blades (VCCT) wind turbines. Updated: Jul 15, 2024 09:07 AM EST. Mrigakshi Dixit. 5 months ago. 0. Share;

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Cross-section of a wind turbine blade.

The skin and spar cap sections of the wind turbine blade structures were manufactured using bidirectional carbon, glass, and hybrids of the two materials to enhance their rigidity and reduce their

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A centimetre-scale bi-directional wind turbine for energy

four airfoil blades with a diameter of 3 and 4 cm, are designed following the blade element momentum-based approach. The two rotors, tested in a wind tunnel, reach a

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Bidirectional blade of horizontal axis tidal current energy generator

The utility model discloses a bidirectional blade of a horizontal axis tidal current energy generator. The blade comprises an upper half part and a lower half part, wherein the working face of the upper half part faces a forward incoming flow; the working face of the lower half part faces a reverse incoming flow; BDA66-12 airfoil is adopted by the cross section of the

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A high-performance hybrid wind energy harvester based on a

Given the intensifying scarcity of non-renewable energy sources, wind power is garnering importance across various fields. However, the prevalent wind power generation

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Induction Generator in Wind Power Systems

Wind power is the fastest growing renewable energy and is promising as the number one source of clean energy in the near future. Among various generators used to convert wind energy, the induction generator has attracted more attention due to its lower cost, lower requirement of maintenance, variable speed, higher energy capture efficiency, and improved

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BI-DIRECTIONAL WIND TURBINE

A wind turbine, having a generator to generate electricity and including a first rotatable power element and a second rotatable power element adapted for contra-rotation relative to one another about a generator axis, a pair of rotors to convert wind energy into rotational energy and generally disposed at a first end of the generator and adapted for rotation about a rotor axis offset from

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Load and dynamic characteristic analysis of wind turbine flexible blades

Aiming at the Megawatt (MW) scale wind turbine, a dynamic analysis and simulation method is presented to research blade loads and dynamic characteristics. To consider blade flexible deformation, the whole blade was divided into a number of units. Each unit was treated as a rigid body, the flexible connection between two adjacent units is considered. A

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Vibration suppression of a floating hydrostatic wind turbine model

For example, the future 20-MW wind turbines will have a blade length of 120 m. With such large blade sizes, the wind turbines become very flexible, and therefore the load reduction of wind turbines has becomes a critical issue. There is also an increasing trend to install the wind turbines offshore to access the immense wind resources available

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CN110145442B

The invention discloses a bidirectional damping device for a wind driven generator blade, which is applied to the field of wind driven generator blades and has the technical scheme...

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Design and optimisation of a bidirectional flux modulation

AC and DC power. A special designed generator based on bidirectional flux modulation effect is the key part of the proposed power supply system. The novel power system has system with a bevel-planetary gearbox and auxiliary wind blade is adopted. The gearbox can combine the torque from contra-rotating rotors and transmit it to the

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Design and Implementation of Bi-Directional DC-DC

PDF | On Jan 1, 2016, K. Suresh and others published Design and Implementation of Bi-Directional DC-DC Converter for Wind Energy System | Find, read and cite all the research you need on ResearchGate

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About Bidirectional wind blade generator

About Bidirectional wind blade generator

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About Bidirectional wind blade generator video introduction

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