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 …

Control Methodologies to Mitigate and Regulate Second-Order Ripples in DC–AC Conversions and Microgrids: A Brief Review

S Chaturvedi, M Wang, Y Fan, D Fulwani, GV Hollweg… - Energies, 2023 - mdpi.com
Second-order ripples occur in the voltage and current during any DC–AC power conversion.
These conversions occur in the voltage source inverters (VSIs), current source inverters …

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 …

Self-tuning methodology for adaptive controllers based on genetic algorithms applied for grid-tied power converters

GV Hollweg, PJD de Oliveira Evald, E Mattos… - Control Engineering …, 2023 - Elsevier
The performance and stability of adaptive controllers is highly dependent on its parameter
initialization. For non-expert designers, the parametrization of these controllers can be …

Adaptive super-twisting sliding mode for DC-AC converters in very weak grids

G Vieira Hollweg, P Dias de Oliveira Evald… - … Journal of Electronics, 2023 - Taylor & Francis
This paper presents the design of a direct-type adaptive control structure for current
regulation of a single-phase grid-tied Voltage-Source Inverter (VSI) with an LCL filter under …

Self-adaptive and content-based scheduling for reducing idle listening and overhearing in securing quantum IoT sensors

MN Khan, I Khalil, I Ullah, SK Singh, S Dhahbi, H Khan… - Internet of Things, 2024 - Elsevier
Today is the age of superconductivity where each object connects in a cascading manner to
other objects, allowing for seamless integration of real-world objects into the digital domain …

A direct adaptive controller with harmonic compensation for grid-connected converters

GV Hollweg, PJD de Oliveira Evald… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
Grid-connected converters are uncertain time-varying systems, whose controllers must deal
with the relevant inductive content and high harmonic distortion of the sampled voltages …

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 …