Essays about: "grid impedance angle"

Found 4 essays containing the words grid impedance angle.

1. 1. Transmission line protection performance in presence of power electronic-interfaced devices : Impact and needed countermeasures in the Swedish transmission system

   University essay from Uppsala universitet/Elektricitetslära

   Author : Hanna Olofsson; [2021]
   Keywords : ;

   Abstract : The penetration level of power electronic-interfaced devices (PEID:s) in power systems isincreasing, including wind- and solar power, HVDC and FACTS devices. Fault current injectedby PEID:s is lower in magnitude, may lack or contain a reduced negative sequence componentand can have a wide range of phase angles, as opposed to fault current supplied bysynchronous generators (SG:s). READ MORE

3. 2. Modelling and grid integration of a 10 MW wave farm - Study of power quality with varying grid impedance angles and wave front incidence angles

   University essay from Uppsala universitet/Institutionen för elektroteknik

   Author : Md Imran Ullah; [2020]
   Keywords : Power systems; WEC; grid connection; electric modelling; flicker; voltage peaks; power factor; wave farm modelling; grid impedance angle; powerfactory;

   Abstract : Grid connection of wave energy is one of the crucial remaining areas of development towards the commercialization of this renewable energy technology. One of the major challenges with the grid connection of the wave energy technology is power variability. READ MORE

4. 3. Analysis of harmonic cross-modulation in HVDC line-commutated converters for practical design purposes

   University essay from Högskolan Väst/Avdelningen för Industriell ekonomi, Elektro- och Maskinteknik

   Author : Casper Karlsson; [2018]
   Keywords : Power transmission; design; filters;

   Abstract : The use of HVDC has many benefits over HVAC for some specific power transmission purposes. However, two major problems with HVDC links are that the converters produce harmonics and consume reactive power. Electrical filters are used to compensate for this and are a major cost driver of HVDC links. READ MORE

5. 4. Load flow control and optimization using phase shifting equipment in combination with Banverkets rotating converters

   University essay from KTH/Elektriska energisystem

   Author : Klas Karlsson; [2006]
   Keywords : ;

   Abstract : The purpose of the thesis was to further investigate the possibility to complement the rotary converters with a phase shifting device as a continuation of the work done in the master thesis; Load flow control and optimization of Banverkets 132 kV 16 2/3 Hz high voltage grid. With this modification, rotating converters can be used almost as flexible as static converters. READ MORE