Renewable energy produced from the wind has garnered much attention and support in recent years but is often criticized for its low output and lack of reliability. But now a super power wind turbine has come along that may be just what the renewable energy industry needs. The MagLev wind turbine, which was first unveiled at the Wind Power Asia exhibition in Beijing, is expected take wind power technology to the next level with magnetic levitation.
Magnetic levitation is an extremely efficient system for wind energy. Here''s how it works: the vertically oriented blades of the wind turbine are suspended in the air above the base of the machine, replacing the need for ball bearings. The turbine uses "full-permanent" magnets, not electromagnets — therefore, it does not require electricty to run. The full-permanent magnet system employs neodymium ("rare earth") magnets and there is no energy loss through friction. This also helps reduce maintenance costs and increases the lifespan of the generator.
Maglev wind turbines have several advantages over conventional wind turbines. For instance, they''re able to use winds with starting speeds as low as 1.5 meters per second (m/s). Also, they could operate in winds exceeding 40 m/s. Currently, the largest conventional wind turbines in the world produce only five megawatts of power. However, one large maglev wind turbine could generate one gigawatt of clean power, enough to supply energy to 750,000 homes. It would also increase generation capacity by 20% over conventional wind turbines and decrease operational costs by 50%. If that isn''t enough, the maglev wind turbines will be operational for about 500 years!
Renewable energy produced from the wind has garnered much attention and support in recent years but is often criticized for its low output and lack of reliability. But now a super power wind turbine has come along that may be just what the renewable energy industry needs. The MagLev wind turbine, which was first unveiled at the Wind Power Asia exhibition in Beijing, is expected take wind power technology to the next level with magnetic levitation.
Ijraset Journal For Research in Applied Science and Engineering Technology
Authors: Dr. Duppala Azad, Dokkara Sri Sai, Kondra Ramakrishna, Panduru Raviteja, Kambala Gowtham, Runku Kranthi Kumar
DOI Link: https://doi /10.22214/ijraset.2023.50688
Certificate: View Certificate
A Maglev wind turbine is a new and innovative technology that has been developed to harness wind energy efficiently. Unlike traditional wind turbines, Maglev turbines use magnetic levitation to rotate the blades without the need for mechanical bearings. This approach has several benefits, including reduced friction, lower maintenance costs, and increased durability. The Maglev wind turbine technology is still in the experimental stage, but it has the potential to revolutionize the wind energy industry by providing a more reliable and efficient way to generate electricity from wind power.
Wind energy has emerged as a promising alternative to traditional sources of electricity. However, traditional wind turbines have some inherent limitations, including high maintenance costs and low efficiency. The Maglev wind turbine has been developed as a solution to these issues by employing magnetic levitation to support the blades and increase the efficiency of the turbine. This new technology offers numerous advantages over traditional wind turbines, including lower maintenance costs, higher durability, and increased efficiency. This introduction provides an original overview of the Maglev wind turbine technology and its potential to revolutionize the wind energy industry.
Aravind CV et al.,[2012] carried design procedure and analysis of vertical axis wind turbine using magnetic levitation where gears were replaced with direct drive technology, thereby reducing the maintenance and power loss. Bearing were replaced with magnetic levitation. From the analysis he concluded that replacing magnets with bearings to the VAWT increases the efficiency and reduces the vibration by 30% compared to that of the turbine without mechanical bearing.
Dinesh N Nagarkar et al.,[2013] carried out study on construction and working of magnetic levitation based power plant which has colossal structure where blades were placed vertically along the outer rim of the cylinder. Since the total assembly was levitated by permanent magnets so there was no friction. The magnets allowed the wind turbine to convert all the wind energy into electrical energy which results in increasing output and reducing cost.
B. Bittumon et al., [2014] carried out research on combined savonius and darrieus rotors which is very scarce. He designed and analysed a Maglev VAWT using a combined savonius and darrieus vertical axis wind turbine would have many advantages over an individual savonius or darrieus rotor. A savonius produces high torque which would be useful in self-starting and darrieus rotor having a high tip speed ratio useful for electrical generation. This developed a two bucket savonius rotor and placed it on the central shaft of a traditional darrieus. Using a counter rotating wind turbine with a freely rotating generator can produce higher amounts of power than common wind generators.
Amit D. Patil et al., [2015] designed a prototype model of a VAWT using magnetic bearing. The rotors that were designed harnessed enough air to rotate at low and high wind speeds while keeping the centre of mass closer to the base yielding stability. The wind turbine rotor levitated properly using permanent magnets, which allowed for a smooth rotation with negligible friction. 4 blades rotor is selected to use in this project. Other components which is mounted on the base are emf generator, charging circuit, battery. The output voltage obtained from this prototype is measured using a multi-meter and a maximum of 5volts DC was obtained.
The main objective of the present work is to fabricate a working model maglev wind turbine and to test it’s performance under different wind speeds and number of turns in coil.
The specific objectives of MWTs can be summarized as follows:
Overall, the methodology for the Maglev wind turbine technology involves the utilization of magnetic levitation, advanced control systems, and ongoing testing and refinement to achieve increased efficiency, reduced maintenance, and increased durability compared to traditional wind turbines.
V. COMPONENTS OF MAGLEV WIND TURBINE
2. Neodymium Magnets: Neodymium magnets are used in this maglev turbine. Neodymium magnets are permanent magnet made from an alloy of neodymium, iron, and boron. Neodymium magnets of 30mm diameter and a height of 5mm. It has a magnetic flux of 1913 gauss and a pull force of 9.8kgs. We are using 20 such magnets to create levitation effect. These 20 magnets are arranged in circular order from the shaft on both upper and lower plane with same poles facing each other. The distance between these planes are 4cm.
3. Centre Shaft: UPVC pipe is used as centre shaft. Centre shaft is a hollow pipe of 30mm outer diameter and 25 mm inner diameter with 80cm height. UPVC pipe is having tensile strength of 52 MPa and elastic modulus of 3000 - 4000MPa.
4. Supporting Plane: one wooden plywood board and fibre dimensions 45cm × 50cm × 1.5cm are used as supporting planes.
V. WIND POWER GENERATION
The output power of the turbine depends upon some physical parameters such as speed of the wind, generator’s mechanical speed and the Tip speed ratio of the turbine. For a wind turbine the Tip speed ratio is the ratio of tangential speed of the blades to the actual wind speed.
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