Documentos de Trabajo: Envíos recientes
Mostrando ítems 1181-1200 de 1898
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El reto de crear e implantar una política lingüística inclusiva
El objetivo de una política lingüística (PL) es promover a los estudiantes y toda la comunidad universitaria a participar activamente en la vida universitaria y desarrollar todo su potencial a nivel personal, académico y ... -
Improving the mechanical properties of epoxy adhesives using graphene nanoplatelets
El grafeno y otros nanomateriales de carbono (CNM) se han utilizado para aumentar las propiedades mecánicas de resinas poliméricas (módulo de Young, resistencia a la tracción, etc. ) debido a su estructura y excelentes ... -
Systematic risk from a corporate structural model approach: from Merton 1974 to Merton 2013
This paper presents an estimation of the financial risk underlying a worldwide sample of countries and companies by means of Principal Component Analysis and analyzes the main features of this systematic risk factor to ... -
Smart-DS: synthetic models for advanced, realistic testing: distribution systems and scenarios
The National Renewable Energy Laboratory (NREL) in collaboration with Massachusetts Institute of Technology (MIT), Universidad Pontificia Comillas (Comillas-IIT, Spain) and GE Grid Solutions, is working on an ARPA-E GRID ... -
Market reductionism and the transcendent within
The success of Modern science does not necessarily lead to the abandonment of any acknowledgement of the transcendent. Although this seems to be the case in the markedly secular West, the process of the “Death of God” has ... -
A tool for optimal operation and design of batteries and its applications to self-consumption
This paper presents a tool for optimal operation and design of batteries and its applications to self-consumption. The recent improvements in capabilities and costs of battery storage technologies might enable new business ... -
Finite-gain-current repetitive controller for synchronverters with harmonic-sharing capabilities
Power electronics interfaces are commonly used for renewable energy integration in microgrids and their control as synchronverters represents an alternative to typical control configurations. This control technique introduces ... -
Improvement of a DC electrical railway simulator using artificial intelligence
Electrical railway simulators play a critical role in mass rapid transit system (MRTS) studies. In most cases, MRTSs are DC-electrified systems which include elements that exhibit different electrical states, i.e. traction ... -
Situational awareness and control of distribution systems and interaction with transmission systems
With the Kyoto and Paris climate agreements countries worldwide agreed to reduce their greenhouse gas emissions. As a consequence, renewable energy sources are introduced and power systems are facing new challenges. This ... -
Anomaly indicators for Kaplan turbine components based on patterns of normal behavior
This paper describes and proposes some indicators for continuous monitoring of anomalous conditions in the hydraulic system of a Kaplan turbine using SCADA data. The indicators are based on significant deviations between ... -
Joint centralized and distributed electricity generation expansion in a decarbonized scenario: the Spanish case
Power systems of most EU countries will face substantial changes partly caused by both the EU Clean Energy Package and the expected increment of active customers. This works aims to analyze the impact of these two factors ... -
An electricity generation expansion model with ICEV and PEV investments
Environmental policies could accelerate the replacement of Internal Combustion Engine Vehicles (ICEV) by Plug-in-Electric Vehicles (PEV) in many countries. However, in countries where these policies are still not implemented ... -
Hybridisation of fundamental and composite econometric modelling for short-term electricity price forecasting
Traders and practitioners in diverse power exchanges are nowadays being most exposed to uncertainty than ever. This calls for appropriate electricity price forecasting models that can account for relevant aspects for ... -
A Monte Carlo approach to represent uncertainty in the European electricity market
Power systems are always subject to uncertainties. When considering multiple areas, this uncertainty affects the state of the interconnections and, as a result, influences the behavior of market agents. This paper proposes ... -
Statistical long-term wind simulation in the Iberian and French electricity system
In recent years there has been a massive deployment of wind energy power systems. Wind has acquired an important role in several electric markets, and its influence on market agent decisions and price fluctuations has ... -
Anomaly detection indicators of a wind turbine gearbox based on feature extraction from its vibration performance
This paper proposes a method for obtaining several health condition indicators for wind turbines based on vibration data driven from two similar experimental turbines (damaged and healthy). These indicators are able to ... -
Optimizing storage allocation and investment for transmission constrained networks considering losses and high renewable penetration
This work investigates the effects of transmission losses, constraints and increased renewable energy penetration on planning energy storage allocation and investment. By modifying a DC Optimal Power Flow model using a ... -
Analysis of storage and water value in power systems for policymaking on renewable energies
As variable Renewable Energy Source (vRES) production, e.g., solar and wind, increases, additional Energy Storage (ES) capacity may be desirable in order to manage vRES intermittency. Moreover, since Battery Energy Storage ...