Wind Energy Conversion Systems (WECS) converts the energy in moving air to electrical energy. The concept is simple and has been adopted thousands of years ago. The wind blows and strikes the set of blades mounted on a shaft that is ready for a rotation.

When the blades are hit by the wind, it will then generate a force that turns the shaft. This rotational kinetic energy may be used for numerous varied reasons and purposes. Pumping water, moving a saw, turning grain - grinding stones are just some of the uses of wind energy, to name a few.

Wind Energy Conversion System is an apparatus that converts the kinetic energy from the current of wind to mechanical energy that are useful and can be used to run machineries like grain mills, water pumps and generators. The following are the major components of a typical Wind Energy Conversion System:

Wind turbine A generator Control systems Interconnection apparatus

The following types of generators are to be used alternately by the users of the energy power:

synchronous generators permanent magnet synchronous generators induction generators squirrel-cage type wound rotor type

The permanent magnet generators and squirrel-cage induction generators are most commonly used by small to medium power wind turbines because of their reliability and cost advantages. Induction generators, permanent magnet synchronous generators and wound field synchronous generators are used in different high power wind turbines. Interconnection apparatuses are devices used to achieve smooth start, power control and interconnection functions. Power electronic converters are usually used to do the purpose. To provide a fixed voltage and frequency output with a high power quality, most modern turbine inverters are the required commutated PWM inverters. Both the source voltage controlled inverters and voltage source current controlled inverters were applied in both turbines.

Effective power control in certain high power wind turbines can be achieved by using double PWM (pulse width modulation) converters. PWM actually provides a two - direction power flow system between the turbine generator and the utility grid. If you want to know more on the Wind Energy Conversion System, online information are always available. The following features are just some of the information you can obtain from online research: Focus on enhanced use of grid capacities and grid support for fixed-and variable-speed controlled wind power plants Demonstration of impede changes in the grid caused by the coupling of wind power plants

Comprehensive treatment of grid integration that includes the effect of power fluctuations

Discussion of profitability expectations and energy results Control systems and Power conditioning to ensure the safe operation of plants

Conventional and new types of generators, converters and power electronics The use of wind energy is now rampant and is said to be very efficient according to the users who have tested its performance. Be one of those who have already tried the efficiency and power of the renewable wind energy.