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An Ultralow Loss Inductorless dv/dt Filter Concept for Medium-Power Voltage Source Motor Drive Converters With SiC Devices
Bombardier Transportat Sweden AB, Dept Medium Power Tract Converter Design, S-72173 Vasteras, Sweden..
Bombardier Transportat Sweden AB, Tract Syst Dept, S-72173 Vasteras, Sweden..
Bombardier Transportat Sweden AB, Tract Syst Dept, S-72173 Vasteras, Sweden..
Bombardier Transportat Sweden AB, Dept Medium Power Tract Converter Design, S-72173 Vasteras, Sweden..
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2018 (English)In: IEEE transactions on power electronics, ISSN 0885-8993, E-ISSN 1941-0107, Vol. 33, no 7, p. 6072-6081Article in journal (Refereed) Published
Abstract [en]

In this paper, a novel dv/dt filter is presented targeted for 100-kW to 1-MW voltage source converters using silicon carbide (SiC) power devices. This concept uses the stray inductance between the power device and the converter output as a filter component in combination with an additional small RC-link. Hence, a lossy, bulky, and costly filter inductor is avoided and the resulting output dv/dt is limited to 5-10 kV/mu s independent of the output current and switching speed of the SiC devices. As a consequence, loads with dv/dt constraints, e.g., motor drives can be fed from SiC devices enabling full utilization of their high switching speed. Moreover, a filter-model is proposed for the selection of filter component values for a certain dv/dt requirement. Finally, results are shown using a 300-A 1700-V SiC metal-oxide-semiconductor field-effect transistor (MOSFET). These results show that the converter output dv/dt can be limited to 7.5 kV/mu s even though values up to 47 kV/mu s weremeasured across the SiC MOSFET module. Hence, the total switching losses, including the filter losses, are verified to be three times lower compared to when the MOSFET dv/dt was slowed down by adjusting the gate driver.

Place, publisher, year, edition, pages
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC , 2018. Vol. 33, no 7, p. 6072-6081
Keywords [en]
AC motor drives, dv/dt control methods, electromagnetic interference (EMI), filters, power semiconductor devices, SiC MOSFET
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-226180DOI: 10.1109/TPEL.2017.2739839ISI: 000428645100047Scopus ID: 2-s2.0-85028466153OAI: oai:DiVA.org:kth-226180DiVA, id: diva2:1206147
Note

QC 20180516

Available from: 2018-05-16 Created: 2018-05-16 Last updated: 2018-05-16Bibliographically approved

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Nee, Hans-Peter

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