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Tech Question: What Controls Speed Of Electric Engine?

Discussion in 'Technical' started by Driver Dave, Oct 31, 2016.

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  1. Driver Dave

    Driver Dave Member

    Joined:
    Oct 10, 2016
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    211
    Location:
    Boston, MA
    I know generally about the 3 phase 4 pole engine and have a question:

    What controls speed?

    Is it speed of phase, or amount of energy going in, or combination?
     
  2. wesley888

    wesley888 Member

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    Oct 22, 2016
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    Location:
    Huntington Station, NY
    Very likely is Pulse Width Modulation (PWM). Higher the speed require higher the frequency to synchronize the rotation with the drive train. Wider the pulse width would give more power. You can google PWM to see how it works.
     
  3. JeffK

    JeffK Well-Known Member

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    Indianapolis
    • Like x 1

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