Wind Energy Guide

How Does a Wind Generator WORK?

Wind generators or wind turbines act on the power of wind. Their specially designed blades or rotors catch the wind while it hits them and they start spinning at a high speed. More or less like the hydroelectric phenomenon, this spinning movement is transformed into electrical energy produced by a electrical generator mechanically coupled to the rotor. However, the quantum of power transferred to a wind turbine remains directly proportional to the area swept by the rotor, the cube of the wind speed and the relative density of the prevailing wind.

How Does A Wind Generator Work


However, to learn more about how does a wind generator work, it might be prudent to strip a wind generating unit to locate its various components and their check functions. To be precise, a wind generator capable of generating and supplying 120V AC current consist of (a) Wind Turbine; (b) Battery bank; (c) Charge Controller; (d) Converter-cum-transformer; ( e) Electrical wires and (f) a tower or a housing to fix unit on top of the tower or a housing for fixing it on a rooftop.


The wind turbine that converts wind energy to electricity can be divided into three basic components. The rotor component of the wind turbine includes the blades for converting wind energy to low speed rotational energy while the generator component which covers around 34% of the total turbine cost includes the electrical generator, the control electronics as also the gearbox section that converts the low speed incoming rotation to high speed rotation apt for generating electricity. The structural support component of the wind turbine includes the rotor pointing mechanism and the tower. As the wind hits the blades, it starts spinning at a pre-determined speed which is automatically increased with help of the gearbox. As the electrical generator is coupled to the rotor, it also starts rotating at a high speed, generating electrical power in the process. However, wind turbines are designed to make use of the wind energy that is found at a location and so are not much of any use at locations where wind energy is nil or negligible. Nevertheless, aerodynamic modeling is evident I the number shape and slant of the blades so that any minor wind energy can be utilized.


The battery banks are used to store the electricity generated by the turbine for use as and when needed. In the absence of the batteries, the generated electricity would have flown back to the turbine and ultimately ruining its functionality.


The charge controller incorporated within the system is responsible for the safety of the battery bank. As soon as the batteries are fully charged, the generated electricity is transferred either to a dummy load or direct to the grid. In fact, surplus electricity sent to the grid earns dollar for the owner of the wind turbine.


As the generated electricity is of DC type, the converter-cum-transformer makes it usable for the consumer by turning it into 120V AC as otherwise the generated power would have been of no use to the consumer/owner of the turbine.


Unless a tower is erected on which the turbine must be fixed, the wind turbine will not be able to function.


Learn more about how does a wind generator work in this manual and also learn how to make your own personal wind power. This manual gives you knowledge about wind power and also teaches you where in your home you should install a system, how to set it up and wire the system, and also where to get the parts from cheaply. Plus you will also know about the safety precautions. Investing in wind power is a great idea because there are both ecological as well as financial benefits.

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