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Harmonic Force Coupling for Inverter-Fed Machines

- February 11, 2026 at 3:52 pm
  
  abdullah.sharaf
  Subscriber
  
  Hello,
  i set up a Workbench project, that enabels analysis the harmonic response in Ansys mechanicel coupling with Ansys Maxwell for an electrical motor. The forces are calculated in Maxwell with PWM supply, with a switching frequency of 15 kHz.
  I followed all steps in the following help document, but i could not see the sidebands interpolation due to the PWM switching effect in the ERP diagram.
  https://ansyshelp.ansys.com/public//Views/Secured/Electronics/v242/en/Subsystems/Maxwell/Maxwell.htm#InverterFeedbackHarmonicForce%20Coupling.htm?TocPath=Maxwell%2520Help%257CMaxwell%2520Coupling%257CMaxwell%2520Multiple%2520RPM%2520Harmonic%2520Force%2520Coupling%257C_____1
  i want to ask if this feature "Harmonic Force Coupling for Inverter-Fed Machines" was already tested from Ansys? Because i do not see any example shows the result of the implemented feature.
  best regards,
  Abdullah
- February 17, 2026 at 10:24 pm
  
  MirandaH
  Ansys Employee
  
  Yes, this feature Harmonic Force Coupling for inverter‑fed machines is tested and implemented.
- February 18, 2026 at 8:29 am
  
  abdullah.sharaf
  Subscriber
  
  But it did not work for me or other colleagues I know either.
  Is there a tutorial or video showing a complete run of it and the PWM-based orders (marked in red in this picture)?
  
  Because the help documentation only explains the steps to take, not showing the results.

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