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Power Capability Boundaries for an Inverter Providing Multiple Grid Support Services
(MDPI AG, 2020)
It is getting more common every day to install inverters that o er several grid support services in parallel. As these services are provided, a simultaneous need arises to know the combined limit of the inverter for those ...
Analysis and Design Guidelines for Current Control Loops of Grid-Connected Converters Based on Mathematical Models
(MDPI AG, 2020)
Having a method for analyzing and designing regulators of controls that contain many current loops such as active filters is not a trivial task. There can be many parameters of regulators and filters that must be carefully ...
Power Balancing in Cascaded H-Bridge and Modular Multilevel Converters Under Unbalanced Operation: A Review
(IEEE, 2021)
Multilevel Voltage-Source Converters (VSC) based on modular structures are envisioned as a prominent alternative for grid and industry applications. Foremost among these are the Cascaded H-Bridge (CHB) and the Modular ...
Ofermod y heroísmo humilde: sobre la interpretación de Tolkien
(Universidad de La Laguna, 2021)
El presente trabajo estudia la interpretación del heroísmo germano por Tolkien tomando como punto de partida su ensayo-poema «The Homecoming of Beorhtnoth Beorhthelm’s Son» sobre La Batalla de Maldon. A través de textos ...
Calendar Ageing Model for Li-Ion Batteries Using Transfer Learning Methods
(MDPI, 2021)
Getting accurate lifetime predictions for a particular cell chemistry remains a challenging process, largely dependent on time and cost-intensive experimental battery testing. This paper proposes a transfer learning (TL) ...
Numerical study of advanced friction modelling for sheet metal forming: influence of the die local roughness
(Elsevier Ltd., 2022)
Numerical simulation of sheet metal forming processes has become indispensable in the last decades. Although the complexity of the frictional behaviour is identified as a key factor for the prediction accuracy, the industry ...
Análisis de las creencias sobre la concepción de la educación física de los futuros docentes durante la formación universitaria
(Juan Carlos Muñoz Díaz, 2021)
El objetivo de este estudio consiste en analizar cómo influyen las creencias previas sobre la Educación Física en los futuros docentes de esa área. Así mismo, se pretende valorar en qué medida la formación universitaria ...
Novel High Accuracy Resolver Topology for Space Applications
(MDPI, 2021)
In recent years, the space industry has experienced a significant change mainly due to the incursion of private companies, which has shaken up the sector. This new situation allows for a reduction regarding the reliability ...
Application Dependent End-of-Life Threshold Definition Methodology for Batteries in Electric Vehicles
(MDPI, 2021)
The end-of-life event of the battery system of an electric vehicle is defined by a fixed end-oflife threshold value. However, this kind of end-of-life threshold does not capture the application and battery characteristics ...
Optimum Slot and Pole Design for Vibration Reduction in Permanent Magnet Synchronous Motors
(MDPI, 2021)
Permanent Magnet Synchronous Motors (PMSMs) are increasingly being used and are required to satisfy noise and vibration specifications. Thus, it is necessary to develop design guidelines for electric motors that consider ...