Efficiency measurements on active du/dt output filtering

Efficiency measurements on active du/dt output filtering

Active du/dt filtering method can reduce the size of filter component physical size, and achieve superior filtering results. This enables very low overvoltage with long motor cables. The losses and power dissipation associated with the method is addressed. A comparison with passive filters is introd...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Tyster, J., Strom, J-P, Korhonen, J., Silventoinen, P.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Active filter
Filtering
Inverters
Loss measurement
Passive filters
Power measurement
Silicon carbide
Temperature measurement
Variable speed drive
Voltage control
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Beschreibung
Zusammenfassung:Active du/dt filtering method can reduce the size of filter component physical size, and achieve superior filtering results. This enables very low overvoltage with long motor cables. The losses and power dissipation associated with the method is addressed. A comparison with passive filters is introduced, and silicon carbide components evaluated. The use of silicon carbide free-wheeling diodes results in significant loss reduction at least in 5.5 kW-22 kW motor power levels. The power dissipation of the inverter is measured with a temperature rise/thermal resistance method, and the results compared with chamber calorimeter results.