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In a modern hybrid vehicle where a traction inverter is connected to a high voltage battery, current and voltage harmonics will arise due to the switching events. In order to determine the high frequency system behavior, simple analytical models are no longer adequate due to difficulties in parameter estimation. In this paper, a co-simulation model of a drive system is implemented in Ansys Maxwell/Simplorer...
Different converters such as the traction inverter and DC/DC converter are connected to the dc bus of an electric or hybrid electric vehicle. Harmonic models of these devices towards the dc bus are needed to investigate different phenomena like the dc bus transients and ripples. A high-frequency harmonic model of a traction circuit, a drive system based on a three-phase inverter connected to an ac...
By replacing the power inductor in a traditional converter topology with a transmission line, new functions such as inverting and non-inverting output voltage polarity from the same converter will arise. In this paper, the proposed technology was investigated in an AC/DC converter where the traditional topology (diode bridge and secondary DC/DC converter) was replaced with a single converter with...
In this article, the influence of diode reverse recovery on EMI performance of a low power flyback converter is investigated. Two different diode models (SPICE and SABER®) are analyzed and the conducted emissions from a simulated converter with a thorough characterization of the parasitic elements are compared to measurements. It is concluded that the emission levels to a large extent is determined...
This paper addresses a complete analysis of the EMI problems associated with step down DC/DC converters and evaluate the effectiveness of solutions that aim to minimize the conducted emissions. Different simulation model of diodes are analyzed and a full converter including PCB stray elements is implemented in Simplorer. To increase the accuracy and account for higher frequencies in the conducted...
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