Wind driven generators or wind generators, also called wind turbines that help generate electricity are usually of two major types. There are the (a) small wind-generators that provide electricity for private homes or small enterprises and (b) there are the larger turbines that generate power for wind farms. However, the basic technology involved in both these two types is more or less the same. As a matter of fact, all wind driven generators convert the kinetic energy in a wind current to mechanical or electrical energy in the following manner.
A small or home use wind generator consists of a small motor that serves as its generating unit, a set of blades to set the motor-cum-generator in motion, a battery bank to store the generated electricity, a charge controller to save the battery life since overcharging shortens it, a step up transformer-cum-inverter to raise the small DC output of the generator to useful 120V AC and a tall tower (at least 30 feet or higher than the neighboring trees or structures) for installing the generator on top of it. As the wind current hits the blades, it starts to lift them and in the process the generatorís drive shaft that is attached to the blades starts spinning. And as it spins at a high revolution, electricity is generated which charges the batteries. Of course, the outputs will depend on the wind speed, the nature of turbulence, diameter of the blades and the generator capacity. According to figures available on the topic, wind speeds of 8 miles per hour is good for the battery charging while 12 mph is recommended for systems that are linked with the utility. Some wind driven generators are provided with speed governors or brakes to save them from exceptionally high winds or tornados.
larger sized wind generators
that are used in wind farms, the drive shafts are
separately coupled to generators suitably arranged
within the housing by means of a set of helical gears.
This ingenious device increases the rotational velocity
of the generator, as a result of which power generation
increases to a much higher degree. When several such
large size wind generator are set in an array, adequate
power is generated that proves sufficient for large
number of households or other electrically operated
driven generators also provide electricity in the form
of offshore installations where wind is adequate.
Besides, they do not occupy large tracts of land that
may have other uses like agriculture or orchards.
are currently very much in demand throughout the
Small wind generators for home use can be easily built by anyone with a little mechanical knowledge at an unbelievably low cost. All that one needs to make a wind generator will include a small motor that can be fished out of a hardware store, blades that can be cut out of 6 inch diameter 24 inch ABS pipe, also from the same source, batteries secured almost for a song from any automobile junk yard and an electronic chare controller and a voltage step up transformer-cum inverter from any e-bay outlet at a going price. If necessary, one has to visit the hardware store again for getting a hub for the blades.
you can build your own wind power system and say yes to
this safe and clean energy. There are tremendous
ecological as well as financial benefits and so, wind
power cannot be neglected anymore. Get complete
information on wind power and how to set up a system at
home to make your own safe and clean energy with the
help of a manual. This manual teaches you where best
such a system works in the home, helps you learn how to
set it up and wire the system and also makes you know
where you can get cheap parts from. Plus you can also
learn about the safety precautions. There are numerous
ecological and financial benefits and so wind power as
an alternative cannot be ignored anymore.