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Impact on the Sustainable Development Goals (SDGs)

Analysis of institutional authors

Alzuguren ICorresponding AuthorVasić MAuthor

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November 13, 2023
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Floating Capacitor Integrated DAB for Single-Phase, Single-Stage PFC in Wireless Battery Charging Application

Publicated to: IEEE Open Journal of Power Electronics. 4 727-739 - 2023-01-01 4(), DOI: 10.1109/OJPEL.2023.3313314

Authors:

Alzuguren, I; Garcia-Bediaga, A; Avila, A; Rujas, A; Vasic, M
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Affiliations

Ikerlan Technol Res Ctr, Power Elect Area, Basque Res, Technol Alliance, Arrasate Mondragon 20500, Spain - Author
Technology Alliance, Power Electronics Area, Ikerlan Technology Research Centre, Basque Research, Mondragon, 20500, Spain - Author
Technology Alliance, Power Electronics Area, Ikerlan Technology Research Centre, Basque Research, Mondragon, 20500, Spain, Universidad Politécnica de Madrid, Centro de Electrónica Industrial, Madrid, 28006, Spain - Author
Univ Politecn Madrid, Ctr Elect Ind, Madrid 28006, Spain - Author
Universidad Politécnica de Madrid, Centro de Electrónica Industrial, Madrid, 28006, Spain - Author
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Abstract

In this article, a novel active power decoupling topology called Floating Capacitor Integrated Dual Active Bridge (FCI-DAB) for single-phase, single-stage AC-DC solutions is introduced. The main point of the circuit is an active energy buffer that compensates the power fluctuation at double the grid frequency. The power decoupling filter is composed by a floating capacitor and a full-bridge; and is connected to the high-frequency link of a resonant DAB |AC|-DC converter. Compared to state-of-the-art two-stage solutions, it dispenses with the bulky electrolytic storage capacitor, with high ESR and low reliability, whose function is to create a constant DC bus. Unlike typical single-stage converters, filtering the fluctuating instantaneous power in the primary-side of the converter brings advantages such as reducing the RMS current in the secondary-side of the circuit, which results on a 50\% of savings in the secondary-side resistive conduction losses. This is considered a key point, specially in Electric Vehicle (EV) wireless battery charging applications, facilitating the refrigeration of secondary-side circuit that is located on-board the vehicle. The article presents the novel FCI-DAB circuit and proposes a control strategy based on duty-cycle modulation which enables the realization of the PFC in the grid-side and the compensation of the power fluctuation with the active buffer in the primary-side. The FCI-DAB concept is verified by experimental results, obtained from an GaN-based IPT 1.5 kW battery charger, with 93% of efficiency and PF = 0.99. © 2020 IEEE.
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Keywords

ac-dcactive filteractive filtersbridge circuitsdc converterelectric vehiclefci-dabfloating capacitorganinductive power transferpfcpower pulsation bufferrectifiersrlc circuitsschemesingle-phasesingle-stagesystemstopologywireless communicationAc-dcActive filterActive filtersAffordable and clean energyBandpass filtersBridge circuitsCapacitorsCharging (batteries)Dual active bridgesElectric power systemsElectric rectifiersElectric vehicleElectric vehiclesEnergy transferFci-dabFloating capacitorFloating capacitor integrated dual active bridgeGallium nitrideGanIii-v semiconductorsInductive power transferInductive powertransfer (ipt)PfcPowerPower pulsation bufferPower-factor correctionRectifierRectifying circuitsResonant circuitsRlc circuitSecondary batteriesSingle phasisSingle stageSingle-phaseSingle-stageTiming circuitsTopologyWireless communications

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal IEEE Open Journal of Power Electronics due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2023, it was in position 65/353, thus managing to position itself as a Q1 (Primer Cuartil), in the category Engineering, Electrical & Electronic.

From a relative perspective, and based on the normalized impact indicator calculated from World Citations from Scopus Elsevier, it yields a value for the Field-Weighted Citation Impact from the Scopus agency: 1.17, which indicates that, compared to works in the same discipline and in the same year of publication, it ranks as a work cited above average. (source consulted: ESI Nov 13, 2025)

Specifically, and according to different indexing agencies, this work has accumulated citations as of 2026-04-27, the following number of citations:

  • WoS: 5
  • Scopus: 9
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Impact and social visibility

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

  • The work has been submitted to a journal whose editorial policy allows open Open Access publication.
  • Assignment of a Handle/URN as an identifier within the deposit in the Institutional Repository: https://oa.upm.es/94632/

As a result of the publication of the work in the institutional repository, statistical usage data has been obtained that reflects its impact. In terms of dissemination, we can state that, as of

  • Views: 27
  • Downloads: 5
Continuing with the social impact of the work, it is important to emphasize that, due to its content, it can be assigned to the area of interest of ODS 7 - Affordable and clean energy, with a probability of 87% according to the mBERT algorithm developed by Aurora University.
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Leadership analysis of institutional authors

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (ALZUGUREN ALMORZA, ITZIAR) and Last Author (VASIC, MIROSLAV).

the author responsible for correspondence tasks has been ALZUGUREN ALMORZA, ITZIAR.

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Project objectives

Los objetivos perseguidos en esta aportación son los siguientes: introducir una nueva topología de desacoplamiento activo de potencia denominada Floating Capacitor Integrated Dual Active Bridge (FCI-DAB) para soluciones monofásicas y monoescalares AC-DC; analizar el funcionamiento del circuito como un buffer activo de energía que compensa las fluctuaciones de potencia a doble frecuencia de red; evaluar las ventajas de filtrar la potencia instantánea fluctuante en el lado primario para reducir la corriente RMS y las pérdidas resistivas en el lado secundario; proponer una estrategia de control basada en modulación del ciclo de trabajo para lograr corrección del factor de potencia y compensación de fluctuaciones; y verificar experimentalmente el concepto mediante un cargador inalámbrico de baterías de 1.5 kW con eficiencia del 93% y factor de potencia 0.99, aplicable especialmente en vehículos eléctricos.
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Most relevant results

El estudio presenta una novedosa topología de desacoplamiento activo denominada Floating Capacitor Integrated Dual Active Bridge (FCI-DAB) para soluciones monofásicas y de etapa única AC-DC. Los resultados más relevantes son: 1) El filtro de desacoplamiento de potencia, compuesto por un condensador flotante y un puente completo, elimina la necesidad de un condensador electrolítico voluminoso con alta ESR y baja fiabilidad; 2) La filtración de la potencia instantánea fluctuante en el lado primario reduce en un 50% las pérdidas resistivas por conducción en el lado secundario; 3) Se facilita la refrigeración del circuito secundario, clave para aplicaciones de carga inalámbrica en vehículos eléctricos; 4) La implementación experimental en un cargador IPT de 1.5 kW basado en GaN mostró una eficiencia del 93% y un factor de potencia de 0.99, validando la propuesta (IEEE, 2020).
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