Departament d'Enginyeria Elèctrica: Recent submissions
Now showing items 1-12 of 124
-
Measuring energy sustainability by using energy sustainability indicators
(Universitat Politècnica de Catalunya, 2021-02-19)
Doctoral thesis
Open AccessThe main aim of this thesis is investigating energy sustainability in developing countries using useful indicators. As it is known, serious issues such as global warming and inefficient consumption of energy will lead to ... -
Energy sustainability of smart cities
(Universitat Politècnica de Catalunya, 2019-07-22)
Doctoral thesis
Open AccessThe increase in the energy consumption of cities forecasted for the coming years makes these urban areas tend to be representative of the energy sustainability of their countries. In this sense, on the basis of the analysis ... -
Energy-based control schemes of Modular Multilevel Converters for HVDC applications
(Universitat Politècnica de Catalunya, 2020-12-21)
Doctoral thesis
Open AccessHigh Voltage Direct Current (HVDC) is a power electronics -based technology that enables the transmission of large amounts of power over long distances, the integration of remote offshore wind power to the main land, and ... -
Development of the future generation of smart high voltage connectors and related components for substations, with energy autonomy and wireless data transmission capability
(Universitat Politècnica de Catalunya, 2020-10-07)
Doctoral thesis
Open AccessThe increased dependency on electricity of modern society, makes reliability of power transmission systems a key point. This goal can be achieved by continuously monitoring power grid parameters, so possible failure modes ... -
Local electricity markets design and operation in distribution power systems
(Universitat Politècnica de Catalunya, 2020-01-31)
Doctoral thesis
Open AccessIn the context of distributed generation growth, local grids could face operational issues. In that sense, smart grid deployment will give information to local grid operators about grid status at medium and low voltage ... -
A novel assessment of unintentional islanding operations in distribution networks
(Universitat Politècnica de Catalunya, 2020-06-09)
Doctoral thesis
Open AccessThis thesis aims to investigate an unexpected islanding operation (IO) which has been identified in a real distribution network. The process of recording and processing the data obtained from the field measurements in the ... -
Modelling and control strategies for hybrid AC/DC grids
(Universitat Politècnica de Catalunya, 2019-11-08)
Doctoral thesis
Open AccessThe proposals for large-scale deployment of renewable energy sources is leading to the need for more cross-border interconnections creating a pan-European power system, at the EU level. Such interconnections may take ... -
Investigación de las estructuras eléctricas y líderes de rayos en tormentas : aportaciones a las condiciones de inicio de rayos gamma terrestres
(Universitat Politècnica de Catalunya, 2019-06-21)
Doctoral thesis
Open AccessThis thesis presents a characterization of the charge structures of thunderstorms and lightning leader development, and their relationship with the emissions of terrestrial gamma ray flashes (TGFs). The results include a ... -
DC current flow controllers for meshed HVDC grids
(Universitat Politècnica de Catalunya, 2019-06-28)
Doctoral thesis
Open AccessMeshed High Voltage Direct Current (HVDC) grids are seen as solution to transmit and exchange high amounts of power across long distances or using submarine cables with high levels of flexibility and redundancy. Also, they ... -
Large scale battery systems in distribution grids
(Universitat Politècnica de Catalunya, 2019-01-31)
Doctoral thesis
Open AccessThe increasing integration of renewable energy installations at the distribution grid level has led to a strong increase in grid reinforcement measures in recent years. Since the costs are being passed on to the general ... -
Multi-level-objective design optimization of permanent magnet synchronous wind generator and solar photovoltaic system for an urban environment application
(Universitat Politècnica de Catalunya, 2019-01-31)
Doctoral thesis
Open AccessThis Ph.D. thesis illustrates a novel study on the analytical and numerical design optimization of radial-flux permanent magnet synchronous wind generators (PMSGs) for small power generation in an urban area, in which an ... -
Planning the integration of the renewable energy sources on islands, under the National Electric System in Mexico
(Universitat Politècnica de Catalunya, 2019-01-29)
Doctoral thesis
Open AccessThe electric generation systems on islands are based generally on fossil fuel. This fact and its supply make the electricity cost higher than in systems used in the continent. In this thesis, as a first part, a review of ...
