Departament d'Enginyeria Elèctrica: Recent submissions
Now showing items 1-12 of 117
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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 ... -
Harmonic load flow formulation and numerical resolution
(Universitat Politècnica de Catalunya, 2019-01-17)
Doctoral thesis
Open AccessAs a continuation of the work done by the QSE (Electrical Supply Quality) research group at the UPC (Polytechnic University of Catalonia) on harmonic load flow in electric power networks, this thesis aims to study existing ... -
Contribution to the operation of smart rural distribution grid with energy resources for improvement of the quality of service
(Universitat Politècnica de Catalunya, 2018-12-19)
Doctoral thesis
Open AccessThis Thesis aims for contributing in the deployment and operation of Smart Grid, in isolated rural areas. As it would be expected, technological developments and investments in the electrical field have mainly focused on ... -
Feeder flow control and operation in large scale photovoltaic power plants and microgrids : Part I Feeder ow control in large scale photovoltaic power plants : Part II Multi-microgrids and optimal feeder ow operation of microgrids
(Universitat Politècnica de Catalunya, 2018-10-04)
Doctoral thesis
Open AccessThis thesis deals with the integration of photovoltaic energy into the electrical grid. For this purpose, two main approaches can be identified: the interconnection of large scale photovoltaic power plants with the ... -
Improved control for multilevel inverters in grid applications
(Universitat Politècnica de Catalunya, 2018-09-27)
Doctoral thesis
Open AccessControl systems for three-phase grid connected voltage source inverters (VSI) play an important role in energy transformation systems . They are expected to be stable, robust and accurate during steady state as well as ... -
Development of reduced-scale tests for HTLS substation connectors
(Universitat Politècnica de Catalunya, 2018-09-21)
Doctoral thesis
Open AccessPower distribution networks face the upcoming challenge of managing the increase of power demand predicted worldwide. Power grid capacity is limited by the number of lines deployed and their characteristics, including ... -
Multi-objective optimization of an energy hub using artificial intelligence
(Universitat Politècnica de Catalunya, 2018-04-20)
Doctoral thesis
Open AccessThe present dissertation is focused on the energy optimization of systems which contain multiple energy carriers. The objective of the research is the development of a methodology and the corresponding software tools, which ... -
Automatic fault location in electrical distribution networks with distributed generation
(Universitat Politècnica de Catalunya, 2018-07-27)
Doctoral thesis
Open AccessNowadays the electrical network is continuously evolving due to the increasing deployment of Information Technologies and the Distribution Energy Resources. This scenario affects directly to the quality of service in the ...
