When you consider what components a wind turbine consists and that we have seen one of them (the rotor blade design in the previous tutorial), the other is a wind turbine alternator or WTA (used to generate electricity & electrical machinery) can be seen. Low speed generators are used to convert the mechanical rotational energy produced by wind energy into usable electrical power to power your home and are the heart of any wind power system.
What are the advantages of permanent magnet alternators in wind applications?
Direct drive (no gearbox)
Virtually maintenance free
Direct drive with best power-to-weight ratio
High efficiency
Simple mechanical design
Simple Mechanical Interface
Cost Optimization
Wind turbines are typically asynchronous motor generators that require the rotor speed to be doubled to generate the required power. Compared to typical generators, permanent magnet generators are very compact and mechanical integration is simplified thanks to the direct drive from the rotor. The efficiency of permanent magnet synchronous generator is higher than that of asynchronous generator.
As we know that an AC alternator or generator is an electrical generator that converts rotary mechanical energy into electrical energy in the form of alternating current. This electricity is used to power schools, homes, hospitals, factories, telecommunications base stations and many other applications.
Besides household wind turbines uses AC alternators to generate energy in supplying home energy needs ,alternators must resist to offer most effectiveness to collect energy from wind blades.
Therefore,new technology ,Venturbine Alternators with speacial magnet system has offered the ultimate experience in generating energy.
As wind turbine applications are increasing in residential homes with windy climates of European or USA countries,the need for valid AC alternators suppliers is extremely demanding.Venturbine assures to offer very effective alternators with their existing catalogue and eligibility to answer special project needs of implementing alternators.
Alternators could be formed with various power range such as 3-100 Kw for household usage or power energy equipment whereas in megawatt terms it could be seen in industrial renewable energy generating huge turbines.
As we speak of Venturbine Alternators which are;
- Brushless
- Unique magnet technology
- Low rpm working structure
- %89 of effectiveness in energy generating
- Environmental friendly
- 25 years working life cycle
There are some of core advantages of Venturbine Alternators that can be used in household appliances for small scale wind turbines or industrial usage in businessses in order to generate necessarry energy.
In the case of a "wind turbine alternator," the wind pushes directly against the blades of the turbine, converting the linear motion of the wind into the rotational motion needed to turn the rotor of the generator. The harder the wind pushes, the more the electrical energy can create will. Next, it is important to properly design the wind turbine blades to extract as much energy as possible from the wind.
Working principle;
All electric turbine alternator work by the effect of moving a magnetic field through an electric coil. When electrons flow through an electric coil, they generate a magnetic field around them. When a magnetic field passes through a coil of wire, a voltage is induced in the coil as defined of magnetic induction, causing electrons to flow.
Cooling System
The generator must be cooled during operation. In most turbines, this is accomplished by ducting the generator and using a large fan to cool the air, although some manufacturers use water-cooled generators. Water-cooled generators can be more compact, which also provides electrical efficiency benefits, but they require a radiator in the nacelle to remove heat from the water cooling system.
To sum up,as the impression moves to renewable sources rather than fossil fuels in order to generate green energy for both household and industrial usage,importance of manufacturing electrical motors and components plays a vital role to create a sustainable future for earth.
Therefore,companies like Venturbine Alternators,comes with their engineering skills as well as manufacturing expertise to offer best suitable AC generators to be used eligibly with household small scale turbines.
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