Analytical Loss Model of a Three-Level WBG NPC Inverter Comprising Reverse Conduction, Dead Time, Modulation Schemes and Switching Energy Analysis
Quergfelder S, Heckel T, März M (2023)
Publication Type: Conference contribution
Publication year: 2023
Publisher: IET
Book Volume: 2023
Pages Range: 165-172
Event location: Brussels
Journal Issue: 17
Abstract
This research derives analytical switching and conduction loss expressions for three-level WBG Neutral Point Clamped (NPC) inverters that include third quadrant operation of unipolar semiconductors and dead time states for different PWM strategies. Special attention is drawn to the topological influence on the switching energies, as it leads to additional losses compared to datasheet values measured in a two-level (2L) setup. The results of the proposed equations are verified with a numerical simulation considering thermal feedback. While the state-of-the-art analytical approach leads to a deviation by a factor of up to 1.6, the proposed method offers quick and accurate inverter loss estimation.
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Germany (DE)How to cite
APA:
Quergfelder, S., Heckel, T., & März, M. (2023). Analytical Loss Model of a Three-Level WBG NPC Inverter Comprising Reverse Conduction, Dead Time, Modulation Schemes and Switching Energy Analysis. In Proceedings of the 12th International Conference on Power Electronics, Machines and Drives (PEMD 2023) (pp. 165-172). Brussels, BE: IET.
MLA:
Quergfelder, Simon, Thomas Heckel, and Martin März. "Analytical Loss Model of a Three-Level WBG NPC Inverter Comprising Reverse Conduction, Dead Time, Modulation Schemes and Switching Energy Analysis." Proceedings of the 12th International Conference on Power Electronics, Machines and Drives (PEMD 2023), Brussels IET, 2023. 165-172.
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