Published Paper Details:

The principal benefit of a vertical axis wind turbine using magnetic levitation in which the rotor is floating in the air due to levitation force which is generated using magnetic repulsion so that mechanical friction is totally eliminated. This new design comprises magnetic levitation phenomenon using rare earth permanent magnets between both rotors to reduce the losses. In the levitated generator design bearings and gears are absent which provides the frictionless flow of energy minimizing noise and hence friction losses are also reduced. At the same time the soft running of some moving component ensures minimum material wear, which reduce the maintenance cost. A VAWT rotor has two types such as savonius and darrieus. Savonius wind turbine produces high torque compare to other which is useful in self-starting. In other hand darrieus rotor has high tip speed ratio useful for electrical generation. So the combination of both type rotors are used over the individual savonius or darrieus rotor would have many advantages. so they are able to operate with starting speeds as low as 1.5 m/s. Also, they can operate at winds speed exceeding upto 40 m/s. That makes the rotation possible in very low wind speeds. The use of magnetitic levitation phenomenon in the VAWT reduces the vibration around 36% to 38%. Also it is conclude that the power generated with maglev system is increase by 30% compare to the normal wind turbine.