scholarly journals A Review on Power Electronics Technologies for Power Quality Improvement

Energies ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 8585
Author(s):  
Joao L. Afonso ◽  
Mohamed Tanta ◽  
José Gabriel Oliveira Pinto ◽  
Luis F. C. Monteiro ◽  
Luis Machado ◽  
...  
Keyword(s):  
Quality Improvement ◽  
Power Electronics ◽  
Power Quality ◽  
Smart Grids ◽  
Electrical Power ◽  
Power Grids ◽  
Electric Mobility ◽  
Solid State Transformers ◽  
Railway Systems ◽  
Power Quality Improvement

Nowadays, new challenges arise relating to the compensation of power quality problems, where the introduction of innovative solutions based on power electronics is of paramount importance. The evolution from conventional electrical power grids to smart grids requires the use of a large number of power electronics converters, indispensable for the integration of key technologies, such as renewable energies, electric mobility and energy storage systems, which adds importance to power quality issues. Addressing these topics, this paper presents an extensive review on power electronics technologies applied to power quality improvement, highlighting, and explaining the main phenomena associated with the occurrence of power quality problems in smart grids, their cause and effects for different activity sectors, and the main power electronics topologies for each technological solution. More specifically, the paper presents a review and classification of the main power quality problems and the respective context with the standards, a review of power quality problems related to the power production from renewables, the contextualization with solid-state transformers, electric mobility and electrical railway systems, a review of power electronics solutions to compensate the main power quality problems, as well as power electronics solutions to guarantee high levels of power quality. Relevant experimental results and exemplificative developed power electronics prototypes are also presented throughout the paper.

scholarly journals The Role of Front-End AC/DC Converters in Hybrid AC/DC Smart Homes: Analysis and Experimental Validation

Electronics ◽  
2021 ◽  
Vol 10 (21) ◽  
pp. 2601
Author(s):  
Vitor Monteiro ◽  
Luis F. C. Monteiro ◽  
Francesco Lo Franco ◽  
Riccardo Mandrioli ◽  
Mattia Ricco ◽  
...  
Keyword(s):  
Smart Grids ◽  
Experimental Validation ◽  
Grid Point ◽  
Electrical Power ◽  
Smart Homes ◽  
Electric Mobility ◽  
Control Algorithms ◽  
New Paradigm ◽  
Front End

Electrical power grids are rapidly evolving into smart grids, with smart homes also making an important contribution to this. In fact, the well-known and emerging technologies of renewables, energy storage systems and electric mobility are each time more distributed throughout the power grid and included in smart homes. In such circumstances, since these technologies are natively operating in DC, it is predictable for a revolution in the electrical grid craving a convergence to DC grids. Nevertheless, traditional loads natively operating in AC will continue to be used, highlighting the importance of hybrid AC/DC grids. Considering this new paradigm, this paper has as main innovation points the proposed control algorithms regarding the role of front-end AC/DC converters in hybrid AC/DC smart homes, demonstrating their importance for providing unipolar or bipolar DC grids for interfacing native DC technologies, such as renewables and electric mobility, including concerns regarding the power quality from a smart grid point of view. Furthermore, the paper presents a clear description of the proposed control algorithms, aligned with distinct possibilities of complementary operation of front-end AC/DC converters in the perspective of smart homes framed within smart grids, e.g., enabling the control of smart homes in a coordinated way. The analysis and experimental results confirmed the suitability of the proposed innovative operation modes for hybrid AC/DC smart homes, based on two different AC/DC converters in the experimental validation.

Electric vehicle battery charger for smart grids

2012 ◽  
Vol 90 ◽  
pp. 18-29 ◽  
Author(s):  
Javier Gallardo-Lozano ◽  
M. Isabel Milanés-Montero ◽  
Miguel A. Guerrero-Martínez ◽  
Enrique Romero-Cadaval
Keyword(s):  
Electric Vehicle ◽  
Smart Grids ◽  
Battery Charger ◽  
Electric Vehicle Battery

scholarly journals Model Predictive Control of an On-Board Fast Battery Charger for Electric Mobility Applications

2016 ◽  
pp. 679-689 ◽  
Author(s):  
Delfim Pedrosa ◽  
Ricardo Gomes ◽  
Vitor Monteiro ◽  
J. C. Aparício Fernandes ◽  
João Monteiro ◽  
...  
Keyword(s):  
Model Predictive Control ◽  
Predictive Control ◽  
Electric Mobility ◽  
Battery Charger

scholarly journals Model Predictive Current Control of a Slow Battery Charger for Electric Mobility Applications

2016 ◽  
pp. 643-653
Author(s):  
Delfim Pedrosa ◽  
Ricardo Gomes ◽  
Vitor Monteiro ◽  
José A. Afonso ◽  
João L. Afonso
Keyword(s):  
Current Control ◽  
Electric Mobility ◽  
Battery Charger

scholarly journals A Novel Multilevel Bidirectional Topology for On-Board EV Battery Chargers in Smart Grids

Energies ◽  
2018 ◽  
Vol 11 (12) ◽  
pp. 3453 ◽  
Author(s):  
Rafael Leite ◽  
João Afonso ◽  
Vítor Monteiro
Keyword(s):  
Smart Grids ◽  
Operating Conditions ◽  
Control Algorithms ◽  
Battery Charger ◽  
Multilevel Converters ◽  
Vehicle To Grid ◽  
Battery Chargers ◽  
Grid Side ◽  
Grid Side Converter ◽  
Laboratory Prototype

This paper proposes a novel on-board electric vehicle (EV) battery charger (EVBC) based on a bidirectional multilevel topology. The proposed topology is formed by an AC-DC converter for the grid-side interface and by a DC-DC converter for the battery-side interface. Both converters are interfaced by a split DC-link used to achieve distinct voltage levels in both converters. Characteristically, the proposed EVBC operates with sinusoidal grid-side current, unitary power factor, controlled battery-side current or voltage, and controlled DC-link voltages. The grid-side converter operates with five voltage levels, while the battery-side operates with three voltage levels. An assessment, for comparison with classical multilevel converters for EVBCs is considered along the paper, illustrating the key benefits of the proposed topology. As the proposed EVBC is controlled in bidirectional mode, targeting the EV incorporation into smart grids, the grid-to-vehicle (G2V) and vehicle-to-grid (V2G) operation modes are discussed and evaluated. Both converters of the proposed EVBC use discrete-time predictive control algorithms, which are described in the paper. An experimental validation was performed under real operating conditions, employing a developed laboratory prototype.

Battery charger

1998 ◽  
Vol 70 (1) ◽  
pp. 149
Author(s):  
T Kokuga
Keyword(s):  
Battery Charger
Sign in / Sign up

Export Citation Format

Share Document