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Erschienen in:
02.03.2021 | Originalarbeit
Automatic EMI filter design for three-phase PWM inverter used in automotive transmission
Erschienen in: e+i Elektrotechnik und Informationstechnik | Ausgabe 2/2021
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Abstract
Over the last few years, the automotive industry has been moving toward pollutant-free and economically sustainable alternatives due to increased regulations concerning CO2 emissions. The hybrid and pure electric transmissions have been proposed to not violate these constraints.
The use of new electrical and electronic components has led to new challenges in terms of space optimisation. Various synthesis tools have been developed over the years for electric and hybrid transmissions to analyse these new solutions thoroughly and effectively.
At times, the components are calculated through databases and are standardised and not developed for the specific case which causes an oversize of the parts.
The size of the Electro-Magnetic Interference Suppression Filter (EMI filter) can contribute up to 30% of the inverter’s total size and weight. Therefore, designing a filter with high-power density and small volume is fundamental. The purpose of this paper is to create an algorithm capable of evaluating the physical and geometric characteristics of an EMI filter, varying the conditions of use. Furthermore, the algorithm can consider geometric constraints.