Common mode chokes and optimisation aspects

Kut, T.; Lücken, A.; Dickmann, S.; Schulz, D.

Due to the increasing electrification of modern aircraft, as a result of the More Electric Aircraft concept, new strategies and approaches are required to fulfil the strict EMC aircraft standards (DO-160/ED-14–Sec. 20). Common mode chokes are a key component of electromagnetic filters and often oversized because of the unknown impedance of the surrounding power electronic system. This oversizing results in an increase of weight and volume. It has to be avoided as far as possible for mobile applications. In this context, an advanced method is presented to measure these impedances under operating conditions. Furthermore, the different parameters of the inductance design is explained and an optimisation for weight and volume is introduced.

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Kut, T. / Lücken, A. / Dickmann, S. / et al: Common mode chokes and optimisation aspects. 2014. Copernicus Publications.

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