Grid-connected converters: A brief survey of topologies, output filters, current control, and weak grids operation

GV Hollweg, SA Khan, S Chaturvedi, Y Fan, M Wang… - Energies, 2023 - mdpi.com
Grid-connected converters (GCCs) are used extensively for the integration of DC power
sources with AC power sources. However, since it is a complex topic, there are many …

A hybrid robust adaptive sliding mode controller for partially modelled systems: Discrete-time lyapunov stability analysis and application

DMC Milbradt, PJD de Oliveira Evald… - Nonlinear Analysis …, 2023 - Elsevier
This work presents a new discrete-time Hybrid Robust Adaptive Sliding Mode Controller,
developed from the union of a Robust Model Reference Adaptive Controller, an Adaptive …

A modified robust adaptive super-twisting sliding mode controller for grid-connected converters

GV Hollweg, PJDO Evald, RV Tambara, W Su… - International Journal of …, 2023 - Springer
This work introduces the application of a new adaptive control structure, which is a
modification of the robust model reference adaptive controller (RMRAC) and adaptive super …

A hybrid robust model reference adaptive controller and proportional integral controller without reference model for partially modeled systems

PJDO Evald, GV Hollweg, RV Tambara… - … Journal of Adaptive …, 2023 - Wiley Online Library
This work presents the discrete‐time stability analysis of a hybrid robust model reference
adaptive controller and proportional‐integral controller (MRAC‐PI) controller using …

[HTML][HTML] Performance comparison of discrete-time robust adaptive controllers for grid-tied power converters under unbalanced grids

PJD de Oliveira Evald, GV Hollweg… - e-Prime-Advances in …, 2023 - Elsevier
Renewable energy generation systems largely use grid-tied power converters with LCL
filters. A well-known issue in this kind of system is the resonance of the LCL filter, whose …

An optimal initialisation for robust model reference adaptive PI controller for grid-tied power systems under unbalanced grid conditions

PJD de Oliveira Evald, GV Hollweg, LC Borin… - … Applications of Artificial …, 2023 - Elsevier
This paper presents an Optimal Robust Model Reference Adaptive Proportional–Integral
controller for grid-tied power systems, which is automatically parametrised using a Genetic …

Lyapunov stability analysis of an RMRAC‐based adaptive sigmoid super‐twisting sliding mode under matched and unmatched uncertainties

G Vieira Hollweg… - … Journal of Robust …, 2024 - Wiley Online Library
This article presents a discrete‐time robust model reference adaptive controller and
adaptive sigmoid super‐twisting sliding mode (RMRAC‐ASSTSM) and its stability analysis …

A review on quadrotor attitude control strategies

PJD de Oliveira Evald, VM Aoki, CB da Silva… - International Journal of …, 2024 - Springer
Quadrotors have been more frequently used in different areas, from aerial photography to
drug delivery in medical emergencies. These vehicles have high maneuverability, which …

A smart parametrisation for robust adaptive PI controller applied on renewable energy power generation systems under weak and uttermost weak grid conditions

PJD de Oliveira Evald, GV Hollweg, LC Borin… - Computers and …, 2024 - Elsevier
The increasing penetration of renewable energy systems into the global energy matrix is a
necessity for sustainable development. The benefits impact the well-being of humanity and …

Enhancing energy quality and grid stability with improved adaptive controller for renewable energy conversion systems under weak grid conditions

MS da Silva, GV Hollweg, LA Leston… - Electric Power Systems …, 2024 - Elsevier
This work presents a systematic procedure for the parameterization of a robust adaptive
proportional-integral controller applied to a grid-tied inverter with an LCL filter. The controller …