Listar por autor "1fa16511c9917b2a437eb30b87b4ca17"
Mostrando ítems 1-20 de 21
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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 ... -
Análisis de arquitecturas de potencia parcial para aplicaciones de corriente continua
Anzola, Jon; Aizpuru, Iosu; GARAYALDE, ERIK; Arrizabalaga, Antxon; Mazuela, Mikel (2019)En este documento se analizan arquitecturas avanzadas de convertidores DC-DC que buscan reducir la potencia a manejar por estos mismos. Para ello, en primer lugar, se describen las ventajas y desventajas que presentan este ... -
Benefits of switching from Si to SiC modules with further converter optimization
Arrizabalaga, Antxon; Mazuela, Mikel; Aizpuru, Iosu; Urkizu, June; Aztiria, Jon (IEEE, 2022)SiC semiconductors have better characteristics than Si, improving power electronics converters performances. A prototype that can switch semiconductor technology without changing any other part of the system is built and ... -
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. ... -
Comprehensive analysis of voltage balancing techniques for 5L NPC converters
Mazuela, Mikel; Baraia-Etxaburu, Josu (IEEE, 2013)The reduced capability of the 5L-NPC Inverter to balance the voltages of the four DC-bus capacitors makes this converter unattractive for real power applications. This is especially true if the load demands active power. ... -
DC-Link Neutral Point Control for 3L-NPC Converters Utilizing Selective Harmonic Elimination PWM
Mazuela, Mikel (IEEE, 2021)Selective harmonic elimination–pulsewidth modulation (SHE–PWM) is a modulation technique widely used to improve the efficiency and harmonic content in medium-voltage high-power converters. Among these converters, the ... -
DC-link Voltage Balancing Strategy based on SVM and Reactive Power Exchange for a 5L-MPC Back-to-Back Converter for Medium Voltage Drives
Mazuela, Mikel; Baraia-Etxaburu, Igor (IEEE, 2016)The reduced capability of multilevel converters with more than one intermediate node to balance the dc-link capacitors voltage, as well as the lack of standard modulation methods to improve their balancing performance, ... -
Dynamic Wireless Power Transfer DWPT Time Domain model: xyz position and speed coupling effect
Aizpuru, Iosu; Agirrezabala, Eneko; Mazuela, Mikel; IRAOLA, UNAI (IEEE, 2022)The paper presents a DWPT system time domain model which considers speed and position (x, y, z) coupling effects. The speed effect compared to static WPT, presents an active behavior that should be considered during the ... -
Electric Vehicle Inverter Electro-Thermal Models Oriented to Simulation Speed and Accuracy Multi-Objective Targets
Urkizu, June; Mazuela, Mikel; Alacano, Argiñe; Aizpuru, Iosu (MDPI AG, 2019)With the increasing demand for electric vehicles, the requirements of the market are changing ever faster. Therefore, there is a need to improve the electric car’s design time, where simulations could be an appropriate ... -
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 ... -
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 ... -
Impact of silicon carbide devices in 2 MW DFIG based wind energy system
Arrizabalaga, Antxon; Idarreta Garate, Aitor; Mazuela, Mikel; Aizpuru, Iosu; IRAOLA, UNAI (IEEE, 2020)Renewable energies are going through a major increment, mainly wind and photovoltaic energies, being market competitiveness the main driver for their massive penetration. As power converters are used to interface renewable ... -
Integración de Carburo de silicio para aumentar el AEP de sistemas de generación eólica basados en DFIG
Arrizabalaga, Antxon; Idarreta Garate, Aitor; Mazuela, Mikel; Aizpuru, Iosu; IRAOLA, UNAI (2020)Gracias a sus prestaciones superiores en comparación con los semiconductores de silicio actuales, los semiconductores de carburo de silicio suponen una tecnología con potencial para aumentar la producción energética anual ... -
Integration of Silicon Carbide devices to increase the AEP (Annual Energy Production) in a PM based wind generation system
Arrizabalaga, Antxon; Mazuela, Mikel; Idarreta Garate, Aitor; IRAOLA, UNAI; Aizpuru, Iosu (IEEE, 2020)A radical energetic change is needed nowadays and enhancing renewable energies should play a main role. For its superior performance and lower losses, SiC devices are identified as a potential technology to improve wind ... -
Medium voltage-high power converter topologies comparison procedure for a 6.6kV Drive Application using 4.5kV IGBT Modules
Abad, Gonzalo; Mazuela, Mikel; Baraia-Etxaburu, Igor; Sanchez-Ruiz, Alain (IEEE, 2012)This paper presents a general comparison procedure for medium voltage - high power multilevel converter topologies and semiconductors, which is mainly based on analyzing the performance limits of the converters output ... -
Scalable Modeling Approach & Robust Hardware-in-the-Loop Testing of an Optimized Interleaved Bidirectional HV DC/DC Converter for Electric Vehicle Drivetrains
Mazuela, Mikel; Alacano, Argiñe; Aizpuru, Iosu (IEEE, 2020) -
SiC erdieroaleak energia eolikoan LCoEa hobetzeko
Arrizabalaga, Antxon; Mazuela, Mikel; Urkizu, June; Aztiria, Jon (UEU, 2021)This research identifies the wind energy as the main renewable source. In order to improve its LCoE, SiC semiconductors are proposed, together with different voltage levels and topologies. After analyzing various configurations, ... -
Simple voltage balancing method to protect series-connected devices experimentally verified in a 5L-MPC converter
Mazuela, Mikel; Baraia-Etxaburu, Igor (IEEE, 2018)This paper presents a solution for the voltage balance problem of the series-connected devices that can be applied to multilevel converters in which the series-connected devices need to block twice their switched voltage. ... -
Single Core and Modular Transformer Solutions: a Trade-Off Analysis of Volume, Losses and Temperature Rise
Arruti Romero, Asier; Anzola, Jon; Aizpuru, Iosu; Mazuela, Mikel (IEEE, 2022)In this paper, a comparison between single core and modular transformer solutions is made. Basic dimensional relations between volumes, areas and lengths are used to obtain mathematical expression of the power losses and ...
