Schaefer, Markus (Date of defense: 2017-11-08)
Control schemes for inverters of different topologies and various numbers of voltage levels are of great interest for many standard as well as special applications. This thesis describes a novel, robust ...
Cavalheiro, David (Date of defense: 2017-05-19)
There has been a tremendous evolution in integrated circuit technology in the past decades. With the scaling of complementary metal-oxide-semiconductor (CMOS) transistors, faster, less power consuming ...
Solh Joukhah, Zahra (Date of defense: 2017-10-27)
The present PhD thesis deals with transformer inrush current in offshore grids including offshore wind farms and High Voltage Direct Current (HVDC) transmission systems. The inrush phenomenon during ...
Zhang, Weiyi (Date of defense: 2017-06-01)
The installation of power generation systems based on renewable energy sources has been increasing exponentially over the last decades. However, in spite of the well-known merits of such energy sources, ...
Remón Rodríguez, Daniel (Date of defense: 2017-12-19)
The irruption of renewable energy sources with power electronics interfaces is transforming power systems. To minimize the possible adverse effects that these generating systems may have on the power ...
Martínez Díaz, Maria del Mar (Date of defense: 2017-07-14)
End of Energy Poverty and achieving Sustainable Energy for all by 2030 is a universal challenge. 1.3 billion people without energy access and 2.8 billion people using unsustainable solid fuel for cooking ...
Heredero Peris, Daniel (Date of defense: 2017-03-24)
This thesis is focused on the microgrid control framework. Specifically, it is concentrated on alternative current microgrids. As a result of the author involvement in different industrial projects ...
Ferreira, Abel António de Azevedo (Date of defense: 2017-03-31)
This thesis discusses the operation of the grid-tied modular multilevel converters (MMC) applied on the dc power transmission, particularly on the medium and high-voltage applications. First, it is ...
Capelli, Francesca (Date of defense: 2017-03-16)
The advent of HTLS (High Temperature, Low Sag) conductors imposes more severe operating conditions on devices such as substation connectors intended for transmission and distribution systems, which are ...
Raza, Muhammad (Date of defense: 2017-12-13)
The offshore grid in North and Baltic Sea can help Europe to achieve 2020 and 2030 renewable energy target to counter climate changes . The formation of offshore grid requires the interconnection between ...