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  2. Permanent magnet synchronous generator - Wikipedia

    en.wikipedia.org/wiki/Permanent_magnet...

    A permanent magnet synchronous generator is a generator where the excitation field is provided by a permanent magnet instead of a coil. The term synchronous refers here to the fact that the rotor and magnetic field rotate with the same speed, because the magnetic field is generated through a shaft-mounted permanent magnet mechanism, and current is induced into the stationary armature.

  3. Explosively pumped flux compression generator - Wikipedia

    en.wikipedia.org/wiki/Explosively_pumped_flux...

    An explosively pumped flux compression generator (EPFCG) is a device used to generate a high-power electromagnetic pulse by compressing magnetic flux using high explosives. EPFCGs are physically destroyed during operation, making them single-use. They require a starting current pulse to operate, usually supplied by capacitors.

  4. Excitation (magnetic) - Wikipedia

    en.wikipedia.org/wiki/Excitation_(magnetic)

    A self-excited shunt-wound DC generator is shown on the left, and a magneto DC generator with permanent field magnets is shown on the right. The shunt-wound generator output varies with the current draw, while the magneto output is steady regardless of load variations. A separately-excited DC generator with bipolar field magnets.

  5. Explosive-driven ferromagnetic generator - Wikipedia

    en.wikipedia.org/wiki/Explosive-driven...

    An explosive-driven ferromagnetic generator (EDFMG, explosively pumped ferromagnetic generator, EPFMG, or FMG) is a compact pulsed power generator, a device used for generation of short high-voltage high-current pulse by releasing energy stored in a permanent magnet. It is suited for delivering high-current pulses (kiloamperes) to low-impedance ...

  6. Electric generator - Wikipedia

    en.wikipedia.org/wiki/Electric_generator

    The magnetic field of the dynamo or alternator can be provided by either wire windings called field coils or permanent magnets. Electrically-excited generators include an excitation system to produce the field flux. A generator using permanent magnets (PMs) is sometimes called a magneto, or a permanent magnet synchronous generator (PMSG).

  7. Flux switching alternator - Wikipedia

    en.wikipedia.org/wiki/Flux_switching_alternator

    An alternative high-speed generator is the permanent magnet magneto. Achieving the output needed depends on the use of modern rare-earth magnets, such as samarium cobalt or neodymium. The output coil is formed as a stator, with axial magnetic flux from a rotating multi-pole ring magnet. [12]

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