EMI Filter Volume Minimization of a Three-Phase, Three-Level T-Type PWM Converter System

EMI Filter Volume Minimization of a Three-Phase, Three-Level T-Type PWM Converter System

In this study, the power density of a two-stage, i.e., LCLCL, electromagnetic interference (EMI) filter for a 10 kW three-phase, T-type three-level, boost-type PWM rectifier system is optimized concerning construction volume. It is found that reasonable boundary conditions limit or define most compo...

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Veröffentlicht in:IEEE transactions on power electronics 2017-04, Vol.32 (4), p.2473-2480
Hauptverfasser: Boillat, David Olivier, Krismer, Florian, Kolar, Johann Walter
Format: Artikel
Sprache:eng
Schlagworte:
Attenuation
Boundary conditions
Capacitors
CM choke
common mode
Converters
Density measurement
differential mode
DM inductor
Electromagnetic interference
Electronics
EMI filter
Inductance
Inductors
Optimization
PWM converter
Rectifiers
volume minimization
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Beschreibung
Zusammenfassung:In this study, the power density of a two-stage, i.e., LCLCL, electromagnetic interference (EMI) filter for a 10 kW three-phase, T-type three-level, boost-type PWM rectifier system is optimized concerning construction volume. It is found that reasonable boundary conditions limit or define most component values and only few degrees of freedom are remaining. In this context, the ratio of the first filter stage's common to differential mode inductance, k L = L cm,1 /L dm,1 , is identified to particularly affect the total filter volume. For given switching frequency and DC-link voltage of f s = 48 kHz and V dc = 700 V, a flat minimum of the overall filter volume results for 10
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2016.2617085