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Vonnesy
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I am wondering how can an alternator charge the battery if the rpm change constantly? Can someone please explain me how it manages to produce a constant voltage?
Vonnesy said:I am wondering how can an alternator charge the battery if the rpm change constantly? Can someone please explain me how it manages to produce a constant voltage?
Vonnesy said:So an alternator as a whole is like a smart generator...now why then they don't use this system for windturbines instead of a brake system
Induction generators are mechanically and electrically simpler than other generator types. They are also more rugged, requiring no brushes or commutators.
bolding mineTermotanque said:Wind turbines typically use synchronous generators, which output variable frequency because the wind speed is variable. The output is then rectified to DC and connected to a line common to all the other wind turbines. Then the DC current is converted to AC at constant frequency with an inverter.
[ref]bolding again mineMost wind turbines in the world use a so-called three phase asynchronous (cage wound) generator, also called an induction generator to generate alternating current. This type of generator is not widely used outside the wind turbine industry, and in small hydropower units, but the world has a lot of experience in dealing with it anyway
Termotanque said:Asynchronous generators are rarely used because their speed has to be almost twice the synchronous speed for maximum efficiency, and they have to be magnetized externally to be able to start. However, it's possible that they found some use for them since they are cheaper and could in principle run at variable speeds (although not at maximum efficiency).
Read this too: http://wiki.windpower.org/index.php/Indirect_grid_connection
Apparently both systems are used.
http://www.ge-energy.com/wind
Most widely deployed wind turbine - 16,500+ turbines installed globally
GE 1.5 MW Series Generator
* Doubly-fed three-phase asynchronous generator
google vestas Vxx gnerator type said:Vestas V80, V82, V90 - asynchronous generator
An alternator is a type of generator that converts mechanical energy from the engine into electrical energy. The alternator uses a belt and pulley system to turn a rotor inside a housing with a fixed coil. As the rotor spins, it creates a magnetic field that induces a current in the coil, generating electricity. This electricity is then used to charge the battery.
The voltage regulator is a crucial component in the alternator charging system. It controls the amount of current flowing to the battery, ensuring that it does not overcharge or undercharge. The voltage regulator also maintains a steady voltage output, preventing damage to the battery and other electrical components.
Yes, a faulty alternator can significantly affect battery charging. If the alternator is not functioning correctly, it will not be able to generate enough electricity to charge the battery. This can result in a drained battery or a battery that is not fully charged, leading to starting issues and other electrical problems in the vehicle.
It is recommended to have the alternator and battery checked at least once a year to ensure they are functioning correctly. However, if you notice any issues with starting the vehicle or dimming headlights, it is essential to have them checked immediately to prevent further damage to the electrical system.
No, a larger alternator does not necessarily charge a battery faster. The charging rate is primarily determined by the voltage regulator, which controls the amount of current flowing to the battery. However, a larger alternator may be able to handle a higher electrical load, which can be beneficial for vehicles with many electrical components or accessories.