Power Loss Modelling and Performance Comparison of Three-Level GaN-Based Inverters Used for Electric Traction

Arjun Sujeeth, Angelo Di Cataldo (), Luigi Danilo Tornello, Mario Pulvirenti, Luciano Salvo, Angelo Giuseppe Sciacca, Giacomo Scelba () and Mario Cacciato
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Arjun Sujeeth: STMicroelectronics, Stradale Primo Sole 50, 95121 Catania, Italy
Angelo Di Cataldo: Department of Electrical Electronic and Computer Engineering, University of Catania, Via Santa Sofia 64, 95123 Catania, Italy
Luigi Danilo Tornello: Department of Electrical Electronic and Computer Engineering, University of Catania, Via Santa Sofia 64, 95123 Catania, Italy
Mario Pulvirenti: STMicroelectronics, Stradale Primo Sole 50, 95121 Catania, Italy
Luciano Salvo: STMicroelectronics, Stradale Primo Sole 50, 95121 Catania, Italy
Angelo Giuseppe Sciacca: STMicroelectronics, Stradale Primo Sole 50, 95121 Catania, Italy
Giacomo Scelba: Department of Electrical Electronic and Computer Engineering, University of Catania, Via Santa Sofia 64, 95123 Catania, Italy
Mario Cacciato: Department of Electrical Electronic and Computer Engineering, University of Catania, Via Santa Sofia 64, 95123 Catania, Italy

Energies, 2024, vol. 17, issue 3, 1-22

Abstract: The main aim of this work is to present a step-by-step procedure to model and analyze the power loss distribution of three-level Gallium Nitride (GaN) inverters. It has been applied to three distinct three-phase three-level voltage source inverters utilized in electric traction drives: Active Neutral Point Clamped, Neutral Point Clamped and T-Type Neutral Point Clamped. The proposed analytical power loss modelling, combined with an equivalent representation of the electrical machine proved to be a viable solution to achieve a time-saving and low computational burden simulation platform, leading to satisfying accurate results. This has been confirmed by comparing the results carried out from the simulations of a 110 kW permanent magnet synchronous motor drive and those determined by considering a simplified circuital representation based on the proposed analytical power loss modelling.

Keywords: Wide Band-Gap (WBG) devices; Gallium Nitride (GaN); multilevel power inverter; analytical loss calculation; high efficiency drives (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: 2024
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