LOW WEIGHT NACELLE WITH ALL PHASE TILTING HUB

This is a downwind type horizontal axis wind turbine, which is applicable to run high efficiency rotor i.e. one, two or three blade rotor etc with their natural efficiency by means its natural RPM.

Present wind turbine system has flexible structure to run high efficiency rotor, thereby present wind turbine applicable to capture optimum available energy rather than use rigid system in conventional wind turbines which partly limit or disturb to rotor to spin with their natural RPM.

In present wind turbine main axle of rotor 1.5 is flexible to vibrate, tilt or move with respect to rotor 09, up to their resonance vibrations. By means vibration, overload, shock impact, cyclic effect etc does not transmits in whole system thereby present wind turbine is free from vibrations, fatigue effects, cyclic effect, rotor racing, vibration coinciding, gyroscopic effect, wind gust, tilting effect etc.

All phase vibrations of present wind turbine are control by using spring control units, more particularly this are three units, one each for X,Y,Z -- axis vibration, tilt or movements. By mutually action of those spring units hub 10 applicable to tilt or vibrate at all phase. To control on re-bounce which generated by spring units, shock absorber are provided with spring control units. (Fig 11A, 11B)

In present wind turbine, the rotor 09 work as kite flying with rope & tail 04 work as tail of kite which balance or controls on movement or fluctuation of kite & axle 1.5 work as rope of kite.

Nacelle 01 comprises only needed components which are applicable to hold & run rotor 09 to minimizes weight of nacelle 01, and remaining nacelle 01 components are shifted at middle portion of tower 05, i.e. generator, cooling system and other controlling devices shifted at middle of tower and it's also flexible for regular maintenances rather than go through the height of tower & stop working of whole system.

This is down wind type of wind turbine there by rotor 09 applicable to line up with new wind direction by itself, even though tail 04 is provided at behind the rotor 09, thereby rotor 09 line up with new wind direction quickly, by means to reduce power losses, & tail 04 is useful when wind direction suddenly flow from opposite direction, another purpose tail 04 also applicable to control on rotor movements.

The mechanical power transmission chain from axle 1.5 to generator 06 comprises gears, sliding joints, universal joints, rods, which applicable to transmit mechanical power from flexible axle 1.5 to stable generator 06.

Yogesh Sonar

Category:

Science & Technology

Tags:

• NACELLE
• PHASE
• TILTING
• HUB
• Wind
• Turbine
• vibration
• rpm