Sergio Nuñez
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Sergio Nuñez has a total of 11 co-authors. Here are the top co-authors by number of shared publications:
- Edgar Maqueda
Universidad Nacional de Asuncion
2 shared publications - Marco Rivera
University of Nottingham
2 shared publications - Raúl Gregor
Universidad Nacional de Asuncion
2 shared publications - Rodrigo Romero
CITHED, Department of Electronic and Mechatronic Engineering, Facultad de Ingeniería, Universidad Nacional de Asunción, San Lorenzo 2160, Paraguay
2 shared publications - Sergio Toledo
Universidad Nacional de Asuncion
2 shared publications - Bruno Sanabria
Department of Electronics and Mechatronics Engineering, Faculty of Engineering, Universidad Nacional de Asunción, Isla Bogado, Luque 110948, Paraguay
1 shared publication
Latest Publications
- Open Access
- 30 March 2026
- Published by MDPI AG in Engineering Proceedings
- Vol. 124 (1) , 93
Alternating Sequential Model Predictive Control in Multimodular Direct Matrix Converters
This work presents an alternating sequential model predictive control (ASMPC) scheme applied to multimodular matrix converters. The proposed strategy alternately evaluates two control objectives: load current tracking and input reactive power minimization. The algorithm was implemented in MATLAB/Simulink on an architecture composed of two direct matrix converters in a multimodular configuration. The influence of parameter on system performance was analyzed under step changes in reference current of 30 A and 60 A. To this end, performance metrics such as THD and MSE were used, along with a descriptive statistical analysis including the mean, standard deviation, mean absolute deviation (MAD), and coefficient of variation (CV). Simulation results show stable performance for variations in , with an input current THD of and load THD reduced to , demonstrating improved harmonic performance compared with classical weighted MPC approaches.- 30 March 2026
- Published by MDPI AG in Engineering Proceedings
- Vol. 124 (1) , 93
Open AccessAlternating Sequential Model Predictive Control in Multimodular Direct Matrix Converters
This work presents an alternating sequential model predictive control (ASMPC) scheme applied to multimodular matrix converters. The proposed strategy alternately evaluates two control objectives: load current tracking and input reactive power minimization. The algorithm was implemented in MATLAB/Simulink on an architecture composed of two direct matrix converters in a multimodular configuration. The influence of parameter on system performance was analyzed under step changes in reference current of 30 A and 60 A. To this end, performance metrics such as THD and MSE were used, along with a descriptive statistical analysis including the mean, standard deviation, mean absolute deviation (MAD), and coefficient of variation (CV). Simulation results show stable performance for variations in , with an input current THD of and load THD reduced to , demonstrating improved harmonic performance compared with classical weighted MPC approaches. - Open Access
A SiC-MOSFET Bidirectional Switch Solution for Direct Matrix Converter Topologies
Bidirectional switches are highly required power electronics units for the design of power converters, especially for direct matrix converters. This article presents the design and implementation of a compact bidirectional switch based on SiC-MOSFET technology, aimed at high-efficiency, high-density power electronics applications. The proposed architecture employs surface-mount components, optimizing both the occupied area and electrical performance. The selected switching device is the IMBG120R053M2H from Infineon, a SiC-MOSFET known for its low on-resistance, high reverse-voltage blocking capability, and excellent switching speed. To drive the power devices, the UCC21521 gate driver integrates two independent isolated outputs in a single package, enabling precise control and reduced electromagnetic interference (EMI). The developed design supports bidirectional current conduction and voltage blocking, offering a robust and scalable solution for next-generation power converters. Design criteria, simulation results, and experimental validations are discussed.
Open AccessA SiC-MOSFET Bidirectional Switch Solution for Direct Matrix Converter Topologies
Bidirectional switches are highly required power electronics units for the design of power converters, especially for direct matrix converters. This article presents the design and implementation of a compact bidirectional switch based on SiC-MOSFET technology, aimed at high-efficiency, high-density power electronics applications. The proposed architecture employs surface-mount components, optimizing both the occupied area and electrical performance. The selected switching device is the IMBG120R053M2H from Infineon, a SiC-MOSFET known for its low on-resistance, high reverse-voltage blocking capability, and excellent switching speed. To drive the power devices, the UCC21521 gate driver integrates two independent isolated outputs in a single package, enabling precise control and reduced electromagnetic interference (EMI). The developed design supports bidirectional current conduction and voltage blocking, offering a robust and scalable solution for next-generation power converters. Design criteria, simulation results, and experimental validations are discussed.