As with all currents, the induced current creates a magnetic field around itself. Note that this magnetic field opposes the original change. For example, if a magnet is moved into a coil of wire ...

As with all currents, the induced current creates a magnetic field around itself. Note that this magnetic field opposes the original change. For example, if a magnet is moved into a coil of wire ...

To control the magnetic field in the rotor a slip ring ... we come at last to the doubly-fed induction generator, also known as a DFIG (pronounced “dee-fig”). It gets this name because ...