Common‐Mode Inductor Design

Sudhoff, Scott D.

doi:10.1002/9781119674658.ch15

Cited by 1 publication

(7 citation statements)

References 5 publications

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“…1. This is very similar to the system considered in [4] (Fig. 15.2) except for an added CM inductor (CMI 1) on the dc side.…”

Section: Test System and CM Mitigation Strategymentioning

confidence: 75%

“…A UR-core CMI with an interleaved winding arrangement is considered in this work. The details of this inductor are given in [4,8]. The magnetic equivalent circuit (MEC) of this inductor in the CM is provided in [4] and redrawn in Fig.…”

Section: Predicting Inductor CM Currentmentioning

confidence: 99%

“…Since the core flux is primarily due to the CM component, the core is large (to support windings that carry a high DM current) in comparison to the amount of current driving flux through the core. It is argued in [4] that under such circumstances, the inductor CM current waveform is strongly influenced by magnetic hysteresis.…”

Section: Introductionmentioning

confidence: 99%

“…A model for a UR-core CMI that takes the inductor CM voltage as an input and predicts the inductor CM current is presented in [4]. This model involves the use of a time-domain hysteresis model set forth in [7] to conduct magnetic analysis.…”

Section: Introductionmentioning

confidence: 99%

“…This model involves the use of a time-domain hysteresis model set forth in [7] to conduct magnetic analysis. However, the work in [7] has never been validated for complex PWM excitations such as are encountered in power converters and the work in [4] has never been experimentally validated at all. Further, the work in [4] does not consider the highfrequency component of the inductor CM current associated with its parasitic capacitance.…”

Section: Introductionmentioning

confidence: 99%

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Predicting Common-Mode Inductor Current Using a Time-Domain Hysteresis Model

Singh¹,

Sudhoff²

2023

IEEE Trans. Power Electron.

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Common-mode inductors are generally designed so that their operation is in the magnetically linear region of the core material. Very few works consider magnetic hysteresis in the core in terms of the common-mode current waveform. This work validates one such magnetic model and enhances it by including the common-mode current due to the inductor's parasitic capacitance. This work establishes the considerable impact of hysteresis and parasitic capacitance on the ability of a commonmode inductor to reduce common-mode current. 1 Index terms -Common-mode, common-mode inductor, magnetic hysteresis, common-mode capacitance.

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“…1. This is very similar to the system considered in [4] (Fig. 15.2) except for an added CM inductor (CMI 1) on the dc side.…”

Section: Test System and CM Mitigation Strategymentioning

confidence: 75%