Two-phase active power filter direct current control with capacitor voltages estimation and balance

Fajardo, Marco; Viola, Julio; Restrepo, José; Quizhpi, Flavio; Aller, J.M.

doi:10.1109/pepqa.2015.7168238

Cited by 10 publications

(5 citation statements)

References 11 publications

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“…For instance, a five-level shunt APF configuration using predictive controllers is devised for compensation of current unbalance and harmonics in [29]. The same topology is employed for reactive power compensation in [30], presenting an innovative DC bus capacitor voltage balancing strategy that requires a reduced number of sensors. In addition, reactive power control, harmonic mitigation, and balancing of currents in 2Φ3w grids is also presented in [31] and [32] by means of a back-to-back converter that uses predictive directive current control.…”

Section: A Comprehensive Literature Reviewmentioning

confidence: 99%

CPT-Based Control Strategy for a Two-Phase Three-Wire Pv Inverter: a Multifunctional Perspective and a Comprehensive Review

Alonso¹,

Oliveira²,

Brandão³

et al. 2022

Eletrônica de Potência

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Multifunctional inverters play an important role in electrical grids due to their capability to provide active power conversion from photovoltaic (PV) systems, as well as by concomitantly offering ancillary services that provide grid support and power quality improvement. Although control strategies for such inverters have been extensively explored for applications in single-and threephase grids, their consideration for the two-phase threewire topology has been superficially discussed in literature. Thus, first, this paper contributes to the literature by presenting a comprehensive review about the control of power electronic inverters in two-phase threewire grids. As second contribution, this paper proposed a flexible control strategy based on the Conservative Power Theory capable of adequately synthesizing control references for a PV-based multifunctional inverter operating in a two-phase three-wire grid. Additionally, power quality services can be selectively offered by the inverter to achieve compensation of reactive, harmonic and unbalance current terms, as well as providing reduction in neutral currents. Hardware-in-the-loop experimental results comprising a multifunctional PV inverter under several scenarios of operation are shown to demonstrate and validate the flexibility of the method.

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Section: A Comprehensive Literature Reviewmentioning

confidence: 99%

CPT-Based Control Strategy for a Two-Phase Three-Wire Pv Inverter: a Multifunctional Perspective and a Comprehensive Review

Alonso¹,

Oliveira²,

Brandão³

et al. 2022

Eletrônica de Potência

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“…El Filtro activo de potencia (APF) para aplicaciones monofásicas y trifásicas se encuentra ampliamente reportada en la literatura técnica en [1], [2], [3], [4], pero hay una falta de documentos que aborden aplicaciones en sistemas bifásicos. Entre los pocos trabajos sobre sistemas bifásicos están [5], [6], donde los autores han propuesto el uso de dos convertidores de 5 niveles para la compensación de los armónicos de corriente entre dos fases de un sistema trifásico como se muestra en la Fig. 2.…”

Section: Filtros Activos De Potencia En Sistemas Bifásicosunclassified

Filtro Activo de Potencia para Instalaciones Bifásicas con Capacidad de Balance de Corrientes

Fajardo¹,

Viola²,

Quizhpi³

2018

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La inclusión de cargas eléctricas de alto consumo como cocinas de inducción y calentadores eléctricos ha hecho necesaria la instalación de una segunda fase en muchos domicilios. Esto trae acarreado el problema de desbalances en las corrientes de cada fase. El presente trabajo propone el uso de dos topologías de inversores actuando como filtros activos de potencia bifásicos. Además de la capacidad de compensación de potencia reactiva estos filtros pueden balancear la potencia activa en cada fase para sistemas bifásicos con 120° y con 180° entre fases.

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“…The authors of [7] formulated alternative methods through the p-q theory focusing on the control of 2Φ3W converters driven with the overlap of two simultaneous operation modes to further mitigate neutral currents. The authors of [8] propose active power conditioning in 2Φ3W circuits based on the exchange of powers between existing phases, using the DC link of multilevel converters. All of these works use an angle displacement of 120 • between the line voltages.…”

Section: Introductionmentioning

confidence: 99%

Wear-Out Analysis of a Grid-Forming Two-Phase Three-Wire Converter Under Unbalanced Load

de Oliveira,

Cupertino,

Brito

et al. 2024

IEEE Open J. Power Electron.

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The grid-forming converter that supplies voltage magnitude and frequency is a key element for isolated remote communities, and then wear-out analysis is an essential figure of merit. Therefore, this paper proposes the two-phase three-wire (2Φ3W) grid forming converter applied in a case study of isolated riverside communities in the Brazilian Amazon region. The proposed xyn-converter displaces the voltage line angle in 180 • , differing from αβn-converter and abn-converter that displace voltage line angle in 90 • and 120 • respectively. First, the authors have also proposed a semiconductor current stress evaluation for 2Φ3W converters comparing the RMS current. Then, the lifetime evaluation of the three evaluated grid-forming converters is conducted. The results show that the converter operating in the xynconverter presents the highest reliability among the three converters. Finally, the thermal stress analysis is validated by means of a 2Φ3W converter prototype with an open semiconductor module. For the evaluated converters, the xyn-converter has the least thermal stress for balanced and unbalanced load conditions and therefore the longest lifespan. The experimental validation shows that the average temperature of the xynconverter is 19.4% and 23.3% lower than both the abn-converter and the αβn-converter under balanced load conditions.INDEX TERMS Grid-forming converter, isolated ac power grids, lifetime consumption, wear-out.

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Two-phase active power filter direct current control with capacitor voltages estimation and balance

Cited by 10 publications

References 11 publications

CPT-Based Control Strategy for a Two-Phase Three-Wire Pv Inverter: a Multifunctional Perspective and a Comprehensive Review

CPT-Based Control Strategy for a Two-Phase Three-Wire Pv Inverter: a Multifunctional Perspective and a Comprehensive Review

Filtro Activo de Potencia para Instalaciones Bifásicas con Capacidad de Balance de Corrientes

Wear-Out Analysis of a Grid-Forming Two-Phase Three-Wire Converter Under Unbalanced Load

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