Design of a single-phase multilevel inverter with independent variable source and PDPWM modulation
DOI:
https://doi.org/10.18687/LACCEI2026.1.1.2457Keywords:
Multilevel inverter, variable independent source, high-frequency transformer, PDPWM modulation, electric tractionAbstract
This paper describes the development of a power conversion system based on a cascaded single-phase multilevel inverter with a common variable DC source for electric traction applications. The proposed architecture uses high-frequency transformers to ensure galvanic isolation and enable power distribution from a single DC source, optimizing energy integration and DC bus variability. A phase-array modulation (PDPWM) technique is implemented to improve output signal quality and significantly reduce harmonic content. The result is a DC bus design with a variability between 45 V and 145 V, controlled by the pulse width of a PWM signal and a 13-level multilevel voltage signal with a total harmonic distortion (THD) of 9.38%.
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2026-07-27
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How to Cite
Fernandez Sandoval, M., Pabon Fernandez, L. D., & Diaz Rodriguez, J. L. (2026). Design of a single-phase multilevel inverter with independent variable source and PDPWM modulation. LACCEI, 1(14). https://doi.org/10.18687/LACCEI2026.1.1.2457