Zerrendatu honen arabera: egilea "e4d430b65b87bbb10600a9a6b03efb9a"
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50 kW Partial Power Converter for EV Charging
Anzola, Jon; Arruti Romero, Asier; Aizpuru, Iosu; Agirrezabala, Eneko; Mazuela, Mikel (IEEE, 2024)This paper presents the design and assembly of a 50 kW dual active bridge partial power converter. Due to the reduction in the power processed by the converter, the maximum power observed by the converter is set to 4.7 kW. ... -
Alternative Approach Based on Bézier Curves to Model Core Losses With the Composite iGSE Method
Agote San Sebastian, Anartz; Arruti Romero, Asier; Aizpuru, Iosu; Mazuela, Mikel (IEEE, 2024)This work addresses limitations of the composite improved generalized Steinmetz equation for core loss calculation and presents a more robust definition of the losses. First, the limitations due to extrapolation of the ... -
Analytical, FEM and Experimental Study of the Influence of the Airgap Size in Different Types of Ferrite Cores
Arruti Romero, Asier; Anzola, Jon; Aizpuru, Iosu; Mazuela, Mikel (IEEE, 2022)This work reviews and compares different airgap reluctance calculation approaches with experimental results, focusing on the Schwarz-Christoffel transformation. The modelling of the airgap reluctance in two dimensions is ... -
The composite improved generalized steinmetz equation (ciGSE): an accurate model combining the composite waveform hypothesis with classical approaches
Arruti Romero, Asier; Anzola, Jon; Aizpuru, Iosu; Mazuela, Mikel (IEEE, 2024)Predicting core losses is a difficult task for designing magnetic components. Under triangular current waveforms the classical approaches work with duty cycles close to 0.5 but are inaccurate for high and low duty cycles. ... -
Convertidor de Potencia Parcial Elevador-Reductor para Aplicaciones de Carga de Vehículo Eléctrico
Anzola, Jon; Aizpuru, Iosu; Arruti Romero, Asier (2020)En este documento se presentan las arquitecturas avanzadas de convertidores DC-DC basadas en el concepto de Procesado de Potencia Parcial (PPP). Para ello, en primer lugar, se describen las ventajas y desventajas que ... -
Demystifying Non-Isolated DC–DC Topologies on Partial Power Processing Architectures
Anzola, Jon; Aizpuru, Iosu; Arruti Romero, Asier (MDPI, 2022)This paper discusses the possibility of achieving partial power processing with non-isolated DC–DC topologies. To this end, partial power converter architectures are seen as an interesting solution for reducing the power ... -
Design and Validation of a Cost-Effective 300 W GaN-Based Step-Up Push-Pull Converter
Alberdi Esuain, Borja; Mazuela, Mikel; San Sebastian, Jon; Sánchez, Roberto; Arruti Romero, Asier; Aizpuru, Iosu (IEEE, 2024) -
Development of an Algorithm for the Automation of the Modelling Process of Power Converters
Anzola, Jon; Aizpuru, Iosu; Arruti Romero, Asier (IEEE, 2020)By the time goes by, the energetic efficiency gains more and more importance inside the strategic plans of companies that are focused on energy storage and conversion. For this reason, these same companies seek the necessity ... -
Elementu pasiboen eragina frekuentzia altuko bihurgailuetan
Arruti Romero, Asier; Anzola, Jon; Aizpuru, Iosu; Mazuela, Mikel (UEU, 2021)Notable technological advancements in power electronics have been made in the last years, such as SiC and GaN based transistors. Still, power converters based on these technologies cannot be fully exploited due to passive ... -
Estimation of Semiconductor Power Losses Through Automatic Thermal Modeling
Arruti Romero, Asier; Aizpuru, Iosu (IEEE, 2024)Achieving the optimal design of power converters requires a deep understanding of the system's dissipation elements to meet the desired performance and safety standards. Once the power converter is designed, it is of key ... -
Evolution of classical 1-D based models and improved approach for the characterization of litz wire losses
Arruti Romero, Asier; Aizpuru, Iosu; Mazuela, Mikel (IEEE, 2024)Prediction of Litz wire losses is a challenging endeavor in the design of high-frequency transformers. Although many analytical approaches of varying complexity can be found in the literature, classical 1-D-based models ... -
Experimental verification of the AC resistance effect in Insulated Metal Substrate based Power Converters
Aizpuru, Iosu; Arruti Romero, Asier; Agirrezabala, Eneko; Mazuela, Mikel (IEEE, 2023)Insulated Metal Substrate (IMS) based power converters are an excellent solution for thermal dissipation of power converters, but they suffer for limited layer options generating parasitic elements specially in High ... -
Exploration of Steinmetz Parameter Variability in High Frequency Transformer Design Spaces
Arruti Romero, Asier; Agote San Sebastian, Anartz; Aizpuru, Iosu; Mazuela, Mikel (IEEE, 2025)This paper investigates the impact of high frequency effects in the design space of transformers for power converters. A holistic overview of the impact of winding losses has previously been studied in the literature, but ... -
A High Frequency Magnetic Test Bench with Fast Isothermal Measurements for Large Cores
Agote San Sebastian, Anartz; Arruti Romero, Asier; Aizpuru, Iosu (IEEE, 2023)This paper presents a magnetic core test-bench that has been developed for high-frequency measurements. The bench is able to perform tests at 1 MHz, 300 V and in a range of 20 °C to 150 °C. It exhibits precise temperature ... -
Impact of Non-Uniform Flux Density on Core Losses: A Case Study on Standard Core Geometries
Arruti Romero, Asier; Agote San Sebastian, Anartz; Anzola, Jon; Aizpuru, Iosu; Mazuela, Mikel (IEEE, 2024)The non-uniform flux density distribution inside magnetic cores leads to increased overall losses when compared to the commonly used uniform flux density assumption. This effect is amplified if rectangular based core shapes ... -
Integrated Magnetic Design for High Power Density Converter
Wang, Pinhe; Arruti Romero, Asier; Huang, Jiasheng; Zsurzsan, Tiberiu Gabriel; Andersen, Michael A. E. (IEEE, 2024)High power density and high efficiency are the trend of power converters. This paper focuses on two-stage DC/DC converters for datacenter applications and proposes a new magnetic integration method for two coupled inductors ... -
Loss Measurement of Low RDS Devices Through Thermal Modelling - The Advantage of Not Turning it Fully On
Arruti Romero, Asier; Aizpuru, Iosu (IEEE, 2023)This paper presents and evaluates a novel method for generating power losses on transistors avoiding high currents. These could heat up the circuit tracks, affecting the accurate thermal modeling of the system. The proposed ... -
MagNet challenge for data-driven power magnetics modeling
Arruti Romero, Asier; Agote San Sebastian, Anartz; Alberdi Esuain, Borja; Aizpuru, Iosu (IEEE, 2024)This paper summarizes the main results and contributions of the MagNet Challenge 2023, an open-source research initiative for data-driven modeling of power magnetic materials. The MagNet Challenge has (1) advanced the ... -
Modelling of magnetic devices for high frequency power converters
Arruti Romero, Asier (Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2024)Magnetic devices are becoming the bottleneck element in many high frequency power converter designs. Although fast switching low resistance power transistors are readily available, due to increased losses and limited ... -
New Computationally Inexpensive Power Cancellation Concept for Magnetic Core Loss Measurement
Agote San Sebastian, Anartz; Arruti Romero, Asier; Garmendia Garcia, Adei; Aizpuru, Iosu; Lefevre, Guillaume (IEEE, 2025)Phase discrepancy is a major source of error in the measurements of core losses, so reactive cancellation techniques are used to improve the measurement accuracy. To do so, an air core transformer is introduced in the ...
