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Electronics

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Negative torque

    • September 11, 2024 at 2:32 pm
      uchechi.innocent
      Subscriber

      Hi everyone,

      I designed a machine, excited the coils and got negative torque value at no load. Please I need a help because the torque should be positive.

    • September 12, 2024 at 1:10 pm
      dlooman
      Ansys Employee

      What product did you use?

    • September 12, 2024 at 1:12 pm
      uchechi.innocent
      Subscriber

       

      I used Ansys Maxwell, and after designing the machine I got a negative average moving torque.

       

    • September 16, 2024 at 2:14 pm
      Timos
      Ansys Employee

      Hello, the reason you're getting negative torque is likely due to the misalignment of the rotor angle with the dq axis. To change it to positive, adjust the initial rotor angle in Motion Setup>Data so that the rotor d-axis is aligned with Phase A negative axis.

       

    • September 23, 2024 at 5:39 pm
      uchechi.innocent
      Subscriber

      Hello Timos

      Thank you for your response. Please how will I adjust it? Should I pick values randomly until the D-axis is aligned with the Phase A negative axis. Also how will I know that it has aligned?

      Thank you.

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