Analysis of the Calculation of Cyclical Ratios by Spatial Vectors Applied to Two-Level Inverters

Authors

  • Juliana S. Menzinger Universidade Estadual Paulista (Unesp), Instituto de Ciência e Tecnologia
  • Alberto H. Llosa Innomotics motores e grandes conversores LTDA
  • Eduardo V. Liberado Universidade Estadual Paulista (Unesp), Instituto de Ciência e Tecnologia

Keywords:

Vector Space Pulse Width Modulation, Switching Sequence Optimization, Three-phase Two-level Inverter, Clarke Transformation, g,h Transformation

Abstract

This paper presents a study of the SVPWM (Vector Space Pulse Width Modulation) technique applied to two-level inverters, focusing on analyzing duty-cycle calculations adopted in the SVPWM. Two different mathematical approaches are analyzed: the conventional (or trigonometric) one and the other based on the g,h transform. Considerations regarding software development of these approaches are presented and discussed. Computational simulation results indicate that both approaches provide identical duty cycle profiles under same initial conditions. However, performance tests indicate that the approach based on g,h transform has a 23% lower execution time in comparison with the conventional approach to calculate the duty-cycles.

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Published

2024-10-18

Issue

Vol. 4 No. 1 (2024): CBA2024

Section

Articles