Predesign Methodology of Voltage Inverters Using a Gradient-Based Optimization Algorithm

• Published in: IEEE journal of emerging and selected topics in power electronics Vol. 9; no. 5; pp. 5895 - 5905
• Main Authors: Voldoire, Adrien, Schanen, Jean-Luc, Ferrieux, Jean-Paul, Sarrazin, Benoit, Gautier, Cyrille
• Format: Journal Article
• Language: English
• Published: Piscataway IEEE 01.10.2021; The Institute of Electrical and Electronics Engineers, Inc. (IEEE); Institute of Electrical and Electronics Engineers
• Subjects: Algorithms; Analytical models; Capacitors; Case studies; Converters; Design automation; Electric power; Engineering Sciences; Inductors; interleaving; Inverters; Magnetic cores; Mathematical models; Model accuracy; Optimization; Passive components; Power harmonic filters; SiC; Silicon carbide; Solution space; Spectrum analysis; Topology; voltage source inverter; Interleaving; SiC; Design Automation; Index Terms -Optimization; Voltage Source Inverter
• ISSN: 2168-6777; 2168-6785; 2168-6785
• DOI: 10.1109/JESTPE.2021.3092576

This article presents an optimization process applied to the sizing of high-power silicon carbide inverters. The case study is the design of an aeronautical converter. A gradient-based optimization method is chosen for its ability to explore a wide solution space with a large amount of constraints, which is the case during the predesign phase. Many topologies are selected and the associated models are developed. Among all these models, active and passive component design and spectral analysis of voltages and currents are presented. The optimization results, with the goal of minimizing the global mass of the converter, are provided. The different topologies are compared to find the best one for the selected case study. The relevance of the optimization result is evaluated with the study of the optimality of the solution. Finally, the experimental results are compared with the optimization ones, which validates the good accuracy of analytical models.