Vertical Axis Wind Turbine using MAGLEV Technology

International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395 -0056
Volume: 04 Issue: 02 | Feb -2017 www.irjet.net p-ISSN: 2395-0072
© 2017, IRJET | Impact Factor value: 5.181 | ISO 9001:2008 Certified Journal | Page 148
Vertical Axis Wind Turbine using MAGLEV Technology
Pallavi Deshmukh1, Komal Gargelwar 2,Komal Jadhav3, Poonam Vankudre 4 ,Prof. Sachin
Dattey 5
1,2,3,4 Student in Electrical Department, SKN Sinhgad Institute of Technology and Science, Lonavala
,Maharashtra,India
5H.O.D. in Electrical Department, SKN Sinhgad Institute of Technology and Science, Lonavala,Maharashtra,India
----------------------------------------------------------------------------------------------------------------------***-------------------------------------------------------------------------------------------------------------------------------
Abstract- This paper displays an overview of the maglev
wind turbine configuration highlights. A vertical axis wind
turbine (VAWT) is acquainted by magnetic levitation
innovation to enhance the execution. The system use nature
of permanent magnet to suspend the turbine part and thus
minimize energy losses while rotating, which is the real issue
that confronted by conventional wind turbine. The choice of
magnet materials in the outline of wind turbine system will
be discussed. The electricity producing capacity in wind
turbines is impacted by the mechanical measurements of the
blade including the shape of the blade and the angle of
attack. The Proper outline of the blade shape and position
tends to improvise the productivity even at low wind speed.
The horizontal of impact at angle of 300 is found to have the
highest lift coefficient for the selected air foil structure. The
utilization of MAGLEV concept in the VAWT diminishes the
vibration by 37.5%. Test results are given with and without
MAGLEV imported to the VAWT design. Additionally it is
measured that the electricity produced with maglev system is
increment by 12% contrast with the typical wind turbine.
Key words: VAWT, Maglev, Blade design, blade position
1.INTRODUCTION
Human have developed a huge number of machines and
apparatuses that use energy to make the everyday works
simpler, for example to warm our home, to get ourselves
from place to place. Recently, the wind is harnessed by
utilizing a unique collector, called wind turbine to deliver a
perfect, safe wellspring of electricity. Different design have
been proposed keeping in mind the end goal to make a
highly effective wind turbine which is capable of generating
maximum electric power. Adopting a specific innovation for
horizontal wind turbine is challenging with wind quality in
Malaysia yearly around 2-3m/s with most highest being
7m/s at Mersing is quite challenging. As of late, an advance
procedure, Magnetic Levitation (Maglev) is incorporated
into turbine system with a specific end goal to satisfy the
necessities of those energy industries. The Maglev wind
turbine, which was initially divulged at the Asia display in
Beijing, is expected to take wind power technology to the
next horizontal with magnetic levitation. Magnetically
levitated train constitutes one of the significant Progress
made because of Maglev technologies. The Japan's Maglev
train has set up world record train speeds of 581 Km/h in
2003 and 603 km/h in 2014. Essentially, vertical axis Wind
turbine (VAWT) utilizing magnetic bearing can begin
producing power with wind speeds as low as 1.5 m/s. The
constraint is on the utilization of horizontal wind turbine is
less critical as it requires wind speed of around 8-15m/s.
On opposite vertical axis wind turbine generates electricity
even at low wind speed , generally where the required
output power is smaller. Experimental consequences of
Maglev (VAWT) demonstrate that system vibration can be
lessened by 37.5%, and power generating capacity of the
system is expanded by 12% utilizing Maglev concept.

2. LITERATURE SURVEY
2.1WindEnergy
Wind is the streaming of air. This wonder happens in the
entire world and it is brought about by uneven warming on
the earth’s surfaces which causes the air is spill out of more
smoking districts with higher pressure to colder locales
with lower pressure. There are a few motivations to bolster
in utilizing the wind energy to create electricity control.
Wind control accessible in the air is much more prominent
than current world energy utilization. The abuse of wind
electricity is just constrained by the financial and natural
variables, since the asset accessible is far bigger than any
reasonable intends to create it. Renewable energy created
from the wind has pulled in a great deal of consideration
and support in late year's .Be that as it may, this
environmentally friendly electricity energy is frequently
condemned for its low yield and absence of unwavering
quality.
2.2WindTurbine
The fundamental working standard of a wind turbine is:
When air move rapidly, as wind, and their dynamic energy
is caught by the turbine sharp blade. The blade begin to
turn and turn a shaft that leads from the center point of the
rotor to a generator and create electricity. The convention
generator encounter bunches of issue, for example, very
wasteful, costly, high support cost, dangerous to natural life,
and take up an excess of land, require high beginning wind
speed to work. When all is said in done, they are two sorts
of wind turbine as per the hub they are rotating about
Horizontal Axis wind turbine (HAWT) is the kind of wind
turbine which has a fundamental rotor shaft and electrical
generator at the highest point of tower and indicated the
bearing of wind.. With respect to the Vertical Axis wind
turbine (VAWT) comprises of generator and gearbox which
are set at the ground and subsequently there is no
requirement for a tower to bolster them as in HAWT. The
principle rotor shaft is masterminded vertically to permit
the turbine sharp blade turn without confronting to the
heading of the wind. In VAWT framework, the generator
and gearbox is put on the ground as opposed to on the top.
The machine require fellow wires to hold it set up puts
pressure on the base bearing as all the heaviness of the
rotor is on the bearing. Fellow wires joined to the top
bearing increment descending push in wind blasts. Tackling
this issue requires a superstructure to hold a top bearing
set up to wipe out the descending pushes of blast occasions
in fellow wired models.
2.3MagneticLevitation
Magnetic levitation (maglev) is a strategy in which a object
is suspended with no bolster other than magnetic. The
magnetic delivered is utilized to balance the impacts of the
gravitational force and lift up the object. There are many
points of interest for using magnetic levitation that is to
minimize friction, make force measurement, outline, and
entertaining gadgets. As of late, this propel innovation is
connected into transportation framework in which non
reaching vehicle travel securely at rapid while suspended,
guided, and impelled over a guide path by magnetic fields.
The idea of magnetically suspended vehicle invigorates the
improvement of helpful application in different fields, for
example, the electricity generation.
2.4MaglevWindTurbine
Dissimilar to the maglev vehicle, the vertically oriented
blade of the wind turbine are suspended noticeable all
around over the base of the machine by utilizing permanent
magnet which produces magnetic force to lift up the sharp
blade. This framework does not require the electricity to
work in light of the fact that no electromagnets are
included. Since the turbine blade are suspended by
magnetic force deliver by the permanent magnet, there is
no need of ball bearings to hold the sharp blade. This
permits the erosion between the sharp blade and ball
bearings can be lessened altogether and consequently,

minimizes the energy loss. This additionally diminishes
upkeep expenses and builds the life expectancy of the
generator. The Maglev wind turbine, which was initially
revealed at the Wind power Asia display in Beijing, is
normal take wind control innovation to the following
horizontal with magnetic levitation.
Figure 1: Free body diagram of magnetically levitated
object
3.METHODOLOGY
3.1Construction
The structure of VAWT is that the rotor rotates the shaft
where the shaft is associated with a generator. This implies
there is no heavy nacelle or yaw system required. This ideal
wind turbine is frictionless and does not have any
rotational component of velocity in the wake.
Figure 2: Maglev Wind Turbine Model
3.2Working
A Maglev wind turbine or Maglev windmill would utilize
magnetic levitation to replace conventional bearing in
design of wind turbine. A late outline was created in china
by Guangzhou Energy Research Institute under china's
Academy of sciences and by Guangzhou Zhongke Hengyuan
Energy Science and Technology co., Ltd.
The design claims to use winds with beginning speed as low
as 1.5 meters for every second (m/s), and cut in speed of 3
m/s. This could include 1,000 hours of operation every year
to wind power plants in areas with a normal wind speed of
3 m/s. However since the energy accessible in wind
changes as the third force of wind speed, the electricity
created at such speeds would be lower than ordinary wind
turbine under higher speed winds.
The rotating turbine shaft is bolstered by magnetic
levitation rather than ball bearings. Magnetic bearing have
been utilized for littler turbines and pumps, however they
by and large can't deal with effect disturbing the shaft, and
by and large requires effectively controlled electromagnets.
Making magnetic heading sufficiently solid to handle load of
wind turbine would utilize restrictive measure of force
simply keeping the electromagnet running. The chines
configuration is said to utilize permanent magnets to
support the rotor shaft.

3.4Mathematical Expressions
The amount of power P0 that can be generated by the wind
turbine is given as in Equation (1)
P0=1/2ρAu3 Cp (1)
Where ρ air density [kg/m3] which is 1.225 kg/m3, A is
Turbine blade area [m2] Cp is power coefficient, u is the
wind Speed [m/s].
Once the wind speed set, the Tip Speed ratio (TSR) is
computed. The TSR (�) of the blade is given as in Equation
(2)
λ = ωR/u (2)
Where ω is the rotational speed of rotor, R is the radius tip
of motor. The decision on the selection of the λ relies on
both the wind speed and the generator.
There are three different types of blade shapes namely
NACA0012, NACA4212 and NACA8612 are used for the
analysis for the design of VAWT [8].
The lift produced by the air foil is given as in Equation (3)
L=1/2ρu3AbCL (3)
where CL is the lift coefficient, is air density [kg/m3], Ab is
the area of blade [m2], and u is wind speed [m/s].
Ab = 2RH (4)
where R is the radius of the turbine [m]and H is the height
of
the turbine [m]. It is seen that the height and the radius of
the
rotor affects the lift force of the blade. High solidity will
increase its performance but too high of solidity will
decrease the power coefficient and is given as in Equation
(5)
σ=NCL/S (5)
Where N is the number of blades, C is the chord length of
the
Blade [m], L is the length of the rotor [m] and S is the swept
Area of the rotor [m2]. It is shown that the size and number
of
the blade is an important factor in solidity. For the same
solidity, various number of blade and chord size will affect
the execution of the VAWT
5. CONCLUSION
The Vertical Axis Wind Turbine (VAWT) with magnetic
levitation performs superior to the ordinary wind turbine.
The capacity of the rotor to collect more wind is broke
down on the three blade design and for the blade position.
Computational liquid elements based limited component
approach is utilized for the investigation on the blade
design and the situating of the sharp blade on the rotor.
6. REFERENCE
[1] B. Bittumon, Amith Raju, Harish Abraham Mammen,
Abhy Thamby, Aby K Abraham,”Design and Analysis of
Maglev Vertical Axis Wind Turbine”, International Journal
of Emerging Technology and Advanced Engineering
Website: www.ijetae.com (ISSN 2250-2459, ISO 9001:2008
Certified Journal, Volume 4, Issue 4, April 2014)
[2] Aravind CV, Kamalinni, Tay SC Jagadeeswaran A, RN
Firdaus,” Design Analysis of MAGLEV-VAWT with Modified
Magnetic Circuit Generator “,2014 IEEE 2nd International
Conference on Electrical Energy Systems (ICEES)
[3] Gene Abbascia, Kojo Asenso, Adam White,”
MAGNETICALLY LEVITATED VERTICAL-AXIS WIND
TURBINE”
[4] Ashwin P. Joseph, Suraj P. Chavhan, Pravesh K. Sahare,
Abdul Arif, Tanveer A. Hussain,” Review Paper on Wind
Turbine using Magnetic Levitation”, IJRMET Vol. 6, Issue 1,
Nov 2015-Apri l 2016
[5] Huachun Wu Ziyan Wang Yefa Hu,” Study on Magnetic
Levitation Wind Turbine forVertical Type and Low Wind
Speed”, 2010 IEEE.

Vertical Axis Wind Turbine using MAGLEV Technology

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Vertical Axis Wind Turbine using MAGLEV Technology