957 results

Modeling and Control of a Bipolar DC-DC Boost Converter for Bipolar DC Microgrids

Miréli B. Vendruscolo; Ademir Toebe; Everson Mattos et al.

Eletrônica de Potência, Vol. 31 · 2026 · English · DOAJ

Bipolar direct current (DC) microgrids have emerged as a promising alternative for efficiently integrating of renewable energy sources. However, these systems are susceptible to voltage imbalance between the positive and negative poles, especially with asymmetric loads. This paper presents the…

Also available at: DOAJ

An Optimized Hybrid FOPID+RMRAC Control Architecture for Grid-tied Inverters with LCL Filters

Cairo T. G. B. Oliveira; Wagner B. da Silveira; Paulo Jefferson Dias de Oliveira Evald

Eletrônica de Potência, Vol. 31 · 2026 · Portuguese · DOAJ

This paper presents a novel hybrid control architecture for grid-tied inverters with an LCL filter, combining a fractional-order proportional-integral-derivative controller, dedicated to reference tracking, and a robust model reference adaptive controller, employed for active rejection of grid…

Modeling and Validation of Junction Temperature Estimation in High-Power SiC MOSFET Inverters for Electric Vehicle Applications

Leonardo R. Willers; Paulo Henrique Alves da Silva e Silva; Lucas R. Rocha et al.

Eletrônica de Potência, Vol. 31 · 2026 · Portuguese · DOAJ

The growing concern with reducing CO2 emissions and the demand for sustainable mobility have promoted the adoption of electric vehicles and the use of wide bandgap semiconductors. Thermal management for semiconductor devices is crucial to ensure reliability and efficiency, with junction temperature…

Integrated Cloud and Hardware-in-the-Loop Framework for IoT-Based Control and Monitoring

Diuary Gonçalves; Ives de O. Furtado; Allan F. Cupertino et al.

Eletrônica de Potência, Vol. 31 · 2026 · Portuguese · DOAJ

This work introduces a Cloud-in-the-Loop approach that combines Internet of Things (IoT) devices with Hardware-in-the-Loop simulation for testing control and monitoring applications. The proposed architecture employs a three-level hierarchical structure: the first level simulates the Battery Energy…

Notch-Filter-Based Control Strategy to Extend Stability Limits of LCL-Filtered Grid-Connected Inverters

James N. Silva; Filipe A. da C. Bahia; Andre P. N. Tahim et al.

Eletrônica de Potência, Vol. 31 · 2026 · Portuguese · DOAJ

The stable connection of energy sources to the grid via LCL-filtered inverters is often constrained by delays introduced by digital implementation and DPWM modulation. This paper proposes a novel notch-filter-based compensation strategy that explicitly mitigates such delays, extending the stability…

Dynamic Modeling and Experimental Validation of a Non-Isolated Bidirectional DC-DC Converter for Control-Oriented Design

Marciel Wenk; Felipe J. Zimann; Robson Mayer et al.

Eletrônica de Potência, Vol. 31 · 2026 · Portuguese · DOAJ

This paper presents the mathematical modeling and control design of a high-power-density bidirectional DC-DC converter topology based on the three-state switching cell (3SSC). The operation stages corresponding to distinct duty cycle intervals are thoroughly analyzed, and state-space techniques are…

Adaptive Control Based on Virtual Plant Applied to Synchronous Buck Converter using LCL Filter for Charging Lithium-Ion Batteries

Vinícius D. Rodrigues; Maicon de Miranda; Wagner B. da Silveira et al.

Eletrônica de Potência, Vol. 31 · 2026 · Portuguese · DOAJ

This paper introduces a virtual plant method as the main contribution, applied independently to two discrete-time adaptive control strategies for a synchronous buck converter used in battery charging: an Adaptive PI Controller (API) and a Model Reference Adaptive Controller (MRAC). The system…

K-Factor Method Approach for Voltage Regulation of CCM Boost Converter

Emanuel B. Martins; Franciele W. Branco; Thiago H. Mombach et al.

Eletrônica de Potência, Vol. 31 · 2026 · Portuguese · DOAJ

This paper presents an approach for the effective control of the output voltage of Boost converters operating in continuous conduction mode, addressing the challenges associated with the presence of a non-minimum phase zero (RHPZ) in their transfer function. The use of a controller designed in the…

Transformerless Six-Leg Single-Phase to Split-Phase Power Converter with Grid Disturbance Mitigation

Manoel S. de Oliveira Neto; Cursino B. Jacobina; Bruna S. Gehrke et al.

Eletrônica de Potência, Vol. 31 · 2026 · Portuguese · DOAJ

This article proposes a transformerless six-leg single-phase to two-phase AC-DC-AC converter for applications in single-phase three-wire distribution systems, also known as single split-phase systems. Featuring an architecture built upon a pair of three-leg converters, and employs space vector…

Derivative-Free Decoupling Method for Asymmetric Six-Phase PMSMs Based on the Dual dq Reference Frame

Letícia D. Giovannini; Arthur C. B. Dias; Lenin M. F. Morais et al.

Eletrônica de Potência, Vol. 31 · 2026 · Portuguese · DOAJ

This paper presents the modeling, control, and hardware-in-the-loop (HIL) evaluation of an asymmetric six-phase Permanent Magnet Synchronous Motor (6φ-PMSM) supplied by two three-phase Voltage Source Inverters (VSIs). The machine is modeled as two coupled three-phase subsystems using a dual dq…

Real-World SoC Estimation for Lithium-Ion Batteries in Electric Buses: Sampling Resolution and Machine Learning Efficiencys

Johanna P. Orellana-Iñiguez; Waldyr L. R. Gallo; Madson C. de Almeida

Eletrônica de Potência, Vol. 31 · 2026 · Portuguese · DOAJ

Accurate State of Charge (SoC) estimation is essential for safe and efficient lithium-ion battery operation in electric mobility. Although machine learning methods achieve high predictive capability, many studies rely on laboratory cycling data and overlook deployment constraints such as latency…

Online SoC Balancing Strategy for Distributed Single-Stage MMC-Based BESS

Juan A. P. Garay; Pedro M. Almeida; Pedro G. Barbosa

Eletrônica de Potência, Vol. 31 · 2026 · Portuguese · DOAJ

This paper proposes an online state-of-charge (SoC) balancing strategy for a distributed single-stage Modular Multilevel Converter-based Battery Energy Storage System (MMC-BESS). The main contribution is the development of a low-complexity sorting-based selection algorithm integrated into the…

Design, FEA-Based Physical Insights, and Experimental Verification of a Planar Transformer for Two-Switch Flyback Converters

Naelton O. de Souza; Djonny Weinzierl; Maicon W. M. de Carvalho et al.

Eletrônica de Potência, Vol. 31 · 2026 · Portuguese · DOAJ

Parasitic parameters in high-frequency transformers directly impact losses, electromagnetic interference (EMI), and voltage/current stresses in power converters. This paper presents a comparative analysis and optimization of planar transformers (PT) applied to a two-switch Flyback (TSF) converter…

A Simplified Approach for Beat Frequency Oscillation Analysis in DC Microgrids

Debora P. Damasceno; José Carlos U. Peña; Mateus P. Dias et al.

Eletrônica de Potência, Vol. 31 · 2026 · Portuguese · DOAJ

This paper investigates beat frequency oscillations in dc microgrids, which occur due to switching frequency mismatches between cascaded converters. These oscillations can be aggravated by non-synchronized sampling in control systems, leading to stability and performance issues. The study…

Gauss-Newton Method Applied to Impedance Estimation in Grid-Connected Inverters

Jefferson R. P. de Assis; Darlan A. Fernandes; Maurício B. de R. Corrêa et al.

Eletrônica de Potência, Vol. 31 · 2026 · Portuguese · DOAJ

This work presents a methodology that employs the Gauss–Newton algorithm to perform online impedance estimation for grid-connected inverters. Conventional formulations for this class of problem typically lead to high-order nonlinear systems of equations, often of dimension 8×8. In contrast, the…

Calculation of the equivalent circuit for a plastic film capacitor intended for DC-link application in power electronic converters

Alessandra C. Fragoso; Alessandro L. Batschauer

Eletrônica de Potência, Vol. 31 · 2026 · Portuguese · DOAJ

Capacitor designs employed in DC-link applications of power electronic converters must minimize equivalent series resistance and parasitic inductance due to the adoption of wide bandgap semiconductors, which enable operation at significantly higher temperatures, voltages, and switching frequencies…

Quantification Errors Due to Inaccurate Use of Power Factor Definition

Jose A. Pomilio; Sigmar M. Deckmann; Jose C. U. Pena et al.

Eletrônica de Potência, Vol. 31 · 2026 · Portuguese · DOAJ

This article discusses the anachronism, insufficiency, and imprecision of the formulation and definitions of power factor (PF) in several regulatory texts. For consumer units in distribution networks, analyses are presented of how ANEEL defines this figure of merit. In the case of individual…

Small Signal Analysis of Rotating Reference Frame Based Synchronization Control for Microgrid to Grid Changeover

Deepak Gehlot; Shoubhik Mukherjee; A.S. Krishna Priya et al.

Eletrônica de Potência, Vol. 31 · 2026 · Portuguese · DOAJ

Reliable synchronization is essential for ensuring stability during the transition of microgrids between islanded and grid-connected operation, particularly in converter-dominated lowinertia systems. This paper outlines a small signal analysis for the novel synchronization control of an islanded…

Modeling and Control of a Full-Bridge DC-DC Converter for Arc Welding Applications

Christian G. Barbosa; Vitor de S. Guedes; Rafael C. Beltrame et al.

Eletrônica de Potência, Vol. 31 · 2026 · Portuguese · DOAJ

This study presents the modeling and control of a full-bridge DC-DC converter applied to Gas Metal Arc Welding (GMAW) in short-circuit transfer mode. GMAW is widely used in industrial manufacturing due to its versatility. However, achieving stable operation in short-circuit transfer requires…