Energies (Jan 2024)

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,
  • Mario Cacciato

DOI
https://doi.org/10.3390/en17030595
Journal volume & issue
Vol. 17, no. 3
p. 595

Abstract

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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.

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