Review, Comprehensive Analysis and Derivation of Analytical Power Loss Calculation Equations for Two- to Three-Level Midpoint Clamped Inverter Topologies with Hybrid Switch Configurations

Lukas Radomsky () and Regine Mallwitz
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Lukas Radomsky: Institute for Electrical Machines, Traction and Drives, Technische Universität Braunschweig, 38106 Braunschweig, Germany
Regine Mallwitz: Institute for Electrical Machines, Traction and Drives, Technische Universität Braunschweig, 38106 Braunschweig, Germany

Energies, 2023, vol. 16, issue 18, 1-33

Abstract: Increased performance requirements in new power electronics areas of application, such as electric aircraft, make innovations on different design levels necessary. In order to quickly compare different topologies, analytical loss equations provide a fast and straightforward way to narrow down the possible solution space. The approach widely used in the literature results in long and complex terms, which can only be compared between different literature sources with great effort. Moreover, the literature lacks a detailed summarizing description of these analytical equations and their derivation, starting from the standard two-level VSI up to three-level midpoint clamped inverter topologies, such as the ANPC topology in its different modulation schemes. The application of such higher-level inverter topologies allows hybrid device configurations to become performant solutions. This work aims to give a closed-form description of the analytical loss modeling and the theoretical background and provide an implementation approach for a wide span of inverter topologies and for different modulation methods.

Keywords: multi-level inverters; three-level inverter; loss calculation; hybrid switch configuration; power loss distribution; modulation strategy; active neutral-point clamped inverter; pulse width modulation; sinusoidal pulse width modulation (SPWM) (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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