Electronics & Electromagnetics

Electronics & Electromagnetics

Cogging torque

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    • Navya C
      Ansys Employee
      What is cogging torque in permanent magnet motors?
    • rtk
      Ansys Employee

      Hi,

      Cogging is the oscillatory torque caused by the tendency of the rotor to line up with the stator in a direction where the reluctance of the magnetic circuit "seen" by the magnets is minimum.

    • Navya C
      Ansys Employee
      How is Cogging torque measured?
    • Charlotte Blair
      Ansys Employee
      Hi -There are many ways to measure cogging. The simple method is by using torque transducer. Cogging torque exists even when there is no stator current and is always measured in zero stator current condition.
    • rtk
      Ansys Employee
      You can predict the Cogging torque during design using Ansys RMxprt and Maxwell tools.
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