Abstract

Multilevel converters have become the dominant solution for medium voltage high power application [1]-[4]. These converter topologies e.g. M2C, SCHB, etc. generate new challenges for the DC-DC power supply (insulation, standby power, etc.) of the IGBT gate units. This paper presents an adaption of the cascaded flyback topology with high input voltage as DC-DC power supply for medium and high voltage multilevel cell converters or series connection of IGBTs. A mathematical model of the DCDC power supply is presented. This model and the selected operation regime of the converter allows the design of the converter as a single stage flyback DC-DC power supply. The performance and robustness of the proposed solution has been experimentally verified on a four stage cascaded flyback up to 1.4 kV/15 W as DC-DC power supply for IGBT gate drive units.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.