Documentos de Trabajo: Envíos recientes
Mostrando ítems 1101-1120 de 2480
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Guest at Home: Experience of Chinese Pilgrims on the Camino de Santiago
This study seeks to discover how the Santiago Pilgrimage Routes are experienced by Chinese pilgrims and explore the similarities and differences between their experience and that of Western pilgrims as well as of general ... -
Ancient Routes, New Gateways: A Systematic Literature Review of China’s Cultural Route Heritage
This study attempts to understand how cultural route heritage is conceptualized and managed in China by systematically reviewing the research literature on Chinese cultural route heritage. It intends to bring the topic to ... -
Las finanzas verdes en el contexto regulatorio de la Unión Europea
En el marco del Pacto Verde Europeo y de la Estrategia de finanzas sostenibles y del Plan de Acción de la Comisión Europea, la presente comunicación tiene por objeto analizar el concepto específico de finanzas verdes. Se ... -
Understanding factors related to users' preferences in the selection of vehicle seating configurations and positions in fully automated vehicles
Research questionObjective To understand the anthropometric and driving factors that determine user preferences in the selection of vehicle seating configurations and positions across different travelling scenarios involving ... -
Polarization and the uses of the past in Spain in Comparative Perspective
The phenomenon of polarization has received increased attention in recent years and, especially so, in the United States (see for example Iyengar et al., 2019). Spain has been pointed out lately as one of the countries ... -
Impact of PLL control on small-signal stability of wind DFIGs connected to weak grids
Research into doubly-fed induction generator (DFIG) technology has yet to solve the instability that arises when DFIGs are connected to weak grids. To investigate this problem, this work used the modal analysis technique ... -
Dimensioning of DC traction substations with realistic traffic scenarios
The study of energy consumption is fundamental for railway systems in general and for DC electrified railway systems in particular. It plays an important role in order to design a proper dimensioning of traction Substations ... -
LTCL-Filter active-damping design considerations for low-switching-frequency grid-tied VSCs
Most electronic devices are connected to the grid by using power electronics converters and, in order to reduce the filter size and cost, novel filter topologies are being proposed in the literature. For high-power ... -
Methodology for managing traceability in the measurement of torque in wind generators
The research described within this paper has aimed to develop new methods for determining torque in an accurate, traceable way. The proposed methods must suit the operating conditions on nacelle test benches, which are ... -
A stochastic market-clearing model using semidefinite relaxation
This paper proposes a two-stage stochastic market clearing (SMC) model based on a semidefinite programming (SDP) relaxation. The SMC model aims at determining the day-ahead schedule (DA) and the real-time (RT) balance ... -
PMU-based estimation of the frequency of the center of inertia and generator rotor speeds
The paper compares a variety of on-line approaches based on PMUs to estimate the angular speed of individual synchronous machines as well as of the center of inertia. These approaches involve the solution of an optimization ... -
Wide area controllers for excitation boosters for transient stability improvement
Excitation boosters (EBs) are one of the most costeffective solutions to improve Fault Ride Through (FRT) capability of synchronous generators. However, they may lead to undesired behavior in multi-machine systems when ... -
Experiences developing large-scale synthetic U.S.-style distribution test systems
This paper describes computational, data management, and other experiences developing large-scale, realistic-but-not-real U.S.-style distribution test systems for the Smart-DS project. These test systems cover entire ... -
A comparative study of the application of lesson study in different university learning environments
This paper presents the application of Lesson Study technique to seven subjects in different faculties in three Spanish universities. Lesson study is a methodology for the improvement of any teaching activity based on the ... -
Impact of PLL control on small-signal stability of wind DFIGs
This paper investigates the small-signal stability of wind doubly fed induction generators. Precisely, the impact of the phase locked loop control on the small-signal stability of wind doubly fed induction generators is ... -
Show me the money! Energy storage systems between the technically feasible and the economically viable
Due to the recommendations of the IPCC Global Warming report [ 1 ], CO2 emissions have to be halved by 2030 in order to avoid devastating changes to our climate. The 2030 climate and energy framework [ 2 ] that was adopted ... -
Sensitivities and uncertainties of eco-driving algorithm estimating train power consumption
This paper describes a study of uncertainty propagation through the Train Simulator Algorithm (TSA). The algorithm is used to estimate train driving time, consumed and regenerated energy. These output quantities are important ... -
MPP awareness in Automatic Generation Control (AGC) with wind farm participation
The AGC is a system that automatically controls the generation of power plants participating in secondary frequency regulation [1]. Currently common AGC systems are designed to control conventional power plants such as ... -
A simple rule-based energy management system for off-grid systems
Off-grid systems are systems that are not interconnected with the grid and that congruently operate in islanded mode permanently. In order to operate the off-grid system efficiently, an energy management system (EMS) is ...