Increasing inverter power output

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MOST COMMON APPROACH TO INCREASING POWER:

  • Parallelization of multiple IGBT modules. Derating needed because of different IGBT characteristics at the same temperature leads to greater than 10% performance losses.

 

WHAT TM4 DOES:

  • Multiple 3-phase subsystems allow full use of the IGBT/diode component performance

 

TM4 OFFERS A SCALABLE LINE OF INVERTERS:

 

BENEFITS:

  • IGBT module parallelization not required
    • Allows full usage of the IGBT/diode dies.
  • Significantly reduces the size and cost of the capacitor.
  • Multi-phase allows  for interleaving of the IGBT switching thereby minimizing the ripple current seen by the capacitor.
  • Three electrically and magnetically independent subsystems.
  • Fewer windings in parallel, less current in case of unbalanced phase voltages.
  • Lower braking torque and current if short-circuit event occurs in one or two subsystems only.

 

multiphase3

Learn more by reading this blog article