A multilevel modular dc-dc converter topology
Scholar | Other documents of the author: Vidal Albalate, Ricardo; Soto Sánchez, Diego; Andrade, Iván; Riedemann, Javier; Pesce, Cristián; Belenguer Balaguer, Enrique; Peña, Rubén; Blasco-Giménez, R.
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TitleA multilevel modular dc-dc converter topology
A multilevel modular DC-DC power conversion topology based on cascaded H-Bridge converters in a double П configuration is presented. The topology is intended to interconnect large power DC networks. A two level ... [+]
A multilevel modular DC-DC power conversion topology based on cascaded H-Bridge converters in a double П configuration is presented. The topology is intended to interconnect large power DC networks. A two level control hierarchy is used to regulate the DC voltage of each H-bridge module. At the top level, DC and circulating AC currents are used to control the total energy converter in all branches (both parallels and series) of each П arrange. At bottom level, the voltage balance of a converter branch, which comprises N H-bridge modules, is carried out by balancing (N-1) capacitor voltage deviations, with respect to the average capacitor voltage. The entire topology and control strategies are simulated in a PSIM environment. Simulation results with three H-bridge converters per branch are shown and preliminary experimental results with a low power prototype are also included. [-]
0378-4754 © 2015 International Association for Mathematics and Computers in Simulation (IMACS). Published by Elsevier B.V. All rights reserved.
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