Learning Forum

[Purity]

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.

[dlooman]

What product did you use?

[Purity]

 

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

 

[Timos]

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.

 

[Purity]

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.