GENERATOR, WIND TURBINE MADE FROM ELECTRIC SWEEPER MOTOR - FREE ENERGY - STUDENT PROJECT
HOW ALTERNATOR WORKS
In PMG (Permanent Magnet Generator) or permanent magnet alternators, the poles are made of permanent magnets. The energy obtained from the output of permanent magnet alternators cannot be used directly. Poles of synchronous alternators used in generators are made of coiled electromagnets and a magnetic field is created by applying current to the poles. In this way, while the alternator is loaded, more current can be given to the poles while keeping the output voltage of the alternator constant, and less current can be given to the poles when the load is taken from the alternator. Since pole magnetic field cannot be controlled in permanent magnet alternators, it is not used directly. It is generally used to charge the battery where it is not possible to keep the speed constant. If the speed cannot be kept constant in the system, the frequency is also variable. This is another reason why the energy obtained from permanent magnet alternators cannot be used directly.
With systems using permanent magnet alternators, the battery is charged. Therefore, a battery bank is needed. It also uses an inverter to increase the battery charge voltage to 220 volts or 400 volts if three phases.
Working Principle of Wind Turbines
The moving air hits the blades and turns the propellers. The propellers convert kinetic energy into mechanical energy in the rotor. ... Thus, electrical energy is produced by electromagnetic induction.
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alternator construction
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