Depletion and scarcity of the conventional energy resources has created a demand for the generati... more Depletion and scarcity of the conventional energy resources has created a demand for the generation of power through the renewable energy resources. Wind one of the most under exploited renewable energy resources is capable of yielding more power compared to the most other renewable energy resources. While the implementation of a wind energy system is comparatively costlier when compared to the other power generation methodologies and yielding of the power would be more profitable only when implemented on a large scale. Vertical axis turbines are capable of extracting power regardless of the direction of flow of wind. The performance of every wind turbine is determined by three main characteristics-powers, torque and variation of wind speed. In hybrid vertical axis wind turbine high power output with low torque is obtained. Yaw control and harmonics are eliminated in this turbine and the tip speed ratio of rotor blades is less which makes more efficient for the rotor blades to collect more wind power. A hybrid wind turbine consists of two types of wind turbines on a same shaft. Such a design exploits good features of two turbines. Here the hybrid turbine is constructed using the combination of the darrieus and the savonius blades. The wind turbine in total consists of a four bladed structure of which two constitutes the darrieus blades(lift type) and the other two of savonius blades(drag type). Darrieus type blades use lift forces from wind to rotate the blades. The blades have an airfoil shape, and instead of being oriented horizontally as they would be on an airplane, they are oriented vertically. The air that travels along the outside of the curve (what would be the top of a wing) must travel at a greater speed than the air on the inside of the blade. Savonius type blade design uses aerodynamic drag from wind to rotate the blades and produce power. Among the different topologies of the generators being used in the wind power systems. The latest systems are being implemented with the permanent magnet generators. The older topologies used the doubly fed induction generators(DFIG). In this difficulty is faced in servicing the rotor especially the rotor coil and the rotor wire
Depletion and scarcity of the conventional energy resources has created a demand for the generati... more Depletion and scarcity of the conventional energy resources has created a demand for the generation of power through the renewable energy resources. Wind one of the most under exploited renewable energy resources is capable of yielding more power compared to the most other renewable energy resources. While the implementation of a wind energy system is comparatively costlier when compared to the other power generation methodologies and yielding of the power would be more profitable only when implemented on a large scale. Vertical axis turbines are capable of extracting power regardless of the direction of flow of wind. The performance of every wind turbine is determined by three main characteristics-powers, torque and variation of wind speed. In hybrid vertical axis wind turbine high power output with low torque is obtained. Yaw control and harmonics are eliminated in this turbine and the tip speed ratio of rotor blades is less which makes more efficient for the rotor blades to collect more wind power. A hybrid wind turbine consists of two types of wind turbines on a same shaft. Such a design exploits good features of two turbines. Here the hybrid turbine is constructed using the combination of the darrieus and the savonius blades. The wind turbine in total consists of a four bladed structure of which two constitutes the darrieus blades(lift type) and the other two of savonius blades(drag type). Darrieus type blades use lift forces from wind to rotate the blades. The blades have an airfoil shape, and instead of being oriented horizontally as they would be on an airplane, they are oriented vertically. The air that travels along the outside of the curve (what would be the top of a wing) must travel at a greater speed than the air on the inside of the blade. Savonius type blade design uses aerodynamic drag from wind to rotate the blades and produce power. Among the different topologies of the generators being used in the wind power systems. The latest systems are being implemented with the permanent magnet generators. The older topologies used the doubly fed induction generators(DFIG). In this difficulty is faced in servicing the rotor especially the rotor coil and the rotor wire
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