Browsing by Author "Gatica, Gustavo"
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- ItemDesign and implementation of dual active bridge converter with single phase shift modulation for electric vehicle charging system(2021) Navarro, Guillermo; Rojas, Felix; Pereda Torres, Javier; Diaz, Matias; Gatica, Gustavo
- ItemDynamic DC-Link Voltage Control of Back to Back Modular Multilevel Converter for Drive Applications(IEEE, 2019) Lillo, Jonathan; Rojas, Félix; Verdugo, Diego; Díaz, Matias; Pereda Torres, Javier Eduardo; Gatica, Gustavo; Espinoza, MauricioIn this work a dynamic control of the dc-link voltage in a hybrid Back-to-Back (BtB) Modular Multilevel Converter for medium-voltage drive applications is presented. The proposed control scheme relates the speed of the machine with the dc-link voltage magnitude to reduce the large circulating currents and common-mode voltage of the converter when the machine operates at low speed. Simulation results, performed in the software PLECS, validate the model of the BtB converter and the proposed control scheme, reducing circulating currents and common mode voltage in almost 70% and 60% respectively, when the machine operates at very low speed.
- ItemGrid Forming Operation for a High Step Ratio Modular Multilevel DC-DC Converter(2020) Cerda, Carlos; Rojas, Felix; Pineda, Cristian; Pereda Torres, Javier; Diaz, Matias; Gatica, Gustavo
- ItemInductor design for a High performance DC-DC Modular Multilevel Converter(IEEE, 2019) Cerda, Carlos; Rojas, Félix; Cristian Andres, Pineda Fornerod; Pereda Torres, Javier Eduardo; Diaz, Matias; Salgado, Jordan; Droguett, Gabriel; Valdés, Darío; Gatica, GustavoIn this paper is presented a simple method to design an inductor for high performance on a DC-DC Modular Multilevel Converter(MMC). This element is one of the main limitations for a proper fulfilment. A high-frequency inductor for high power applications is a key element to achieve high efficiency in such type of converters. The theoretical design of the inductor is compared with an experimental prototype, which is then implemented in a high-power DC-DC converter. Experimental results validate the accuracy of the theoretical design and the improvements in the efficiency of the overall DC-DC high power converter.
- ItemModelling and control of a multi-cell converter based on Input-Parallel Output-Parallel bridge-cells with discontinuous interleaved modulation(2021) Verdugo, Diego; Rojas, Felix; Pereda Torres, Javier; Diaz, Matias; Gatica, Gustavo