comunicación de congreso
Phase-shifted Pulse Width Modulation with alternate zeros voltage for parallel connection of H-Bridges for High-Current Low-Voltage applications
Date
2019Registration in:
10.1109/IECON.2019.8927568
978-1-7281-4878-6
2577-1647
9781728148793
1553-572X
Author
Verdugo, D.
Rojas, F.
Lillo, J.
Diaz, M.
Pereda Torres, Javier Eduardo
Gatica, Gabriel N.
Institutions
Abstract
Phase-Shifted Modulation (PSM) applied to multilevel converters is an effective method for reducing the output THD. In this paper, a new unipolar PSM method is proposed to control internal circulating current of a high-current low-voltage power converter, composed of parallel connected H- Bridges. The proposed method reduces the H-bridge currents distortions and the power losses of the overall converter. Simulation results comparing the standard unipolar modulation with the proposed unipolar modulation technique are performed to demonstrate its effectiveness.