Comparative Analysis of Efficiency and Harmonic Generation in Multiport Converters: Study of Two Operating Conditions

Francisco J. Arizaga; Juan M. Ramírez; Janeth A. Alcalá; Rosas-Caro, Julio; Armando G. Rojas-Hernández

doi:10.3390/wevj16100566

Comparative Analysis of Efficiency and Harmonic Generation in Multiport Converters: Study of Two Operating Conditions

Journal

World Electric Vehicle Journal

ISSN

2032-6653

Publisher

MDPI AG

Date Issued

2025-10-02

Author(s)

Francisco J. Arizaga

Juan M. Ramírez

Janeth A. Alcalá

Armando G. Rojas-Hernández

Type

text::journal::journal article

DOI

10.3390/wevj16100566

URL

https://scripta.up.edu.mx/handle/20.500.12552/12592

Abstract

This study presents a comparative analysis of efficiency and harmonic generation in Triple Active Bridge (TAB) converters under two operating configurations: Case I, with one input source and two loads, and Case II, with two input sources and one load. Two modulation strategies, Single-Phase Shift (SPS) and Dual-Phase Shift (DPS), are evaluated through frequency-domain modeling and simulations performed in MATLAB/Simulink. The analysis is complemented by experimental validation on a laboratory prototype. The results show that DPS reduces harmonic amplitudes, decreases conduction losses, and improves output waveform quality, leading to higher efficiency compared to SPS. Harmonic current spectra and total harmonic distortion (THD) are analyzed to quantify the impact of each modulation method. The findings highlight that DPS is more suitable for applications requiring stable power transfer and improved efficiency, such as renewable energy systems, electric vehicles, and multi-source DC microgrids.