Search for dissertations about: "Computer and Electric power distribution"

Showing result 1 - 5 of 12 swedish dissertations containing the words Computer and Electric power distribution.

2. 1. Applications of Unsupervised Deep Learning for Analysing Time-Varying Power Quality Big Data

   Author : Roger Alves de Oliveira; Math Bollen; Sarah Rönnberg; Matti Lehtonen; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; power quality; power system harmonics; electric power distribution; interharmonics; big data analytics; pattern analysis; unsupervised learning; deep learning; artificial intelligence; geomagnetically induced currents; Electric Power Engineering; Elkraftteknik;

   Abstract : Continuous power quality monitoring allows grid stakeholders to obtain information about the performance of the network and costumer facilities. Moreover, the analysis of continuous monitoring allows researchers to obtain knowledge on power quality phenomena. Power quality measurements result in a large amount of data. READ MORE

4. 2. Positive streamer discharges in air and along insulating surfaces: experiment and simulation

   Author : Mose Akyuz; Fridolin Heidler; Uppsala universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Engineering physics; Teknisk fysik; Engineering physics; Teknisk fysik; teknisk fysik med inriktning mot atmosfäriska urladdningar; Engineering Physics; with a direction to Atmospheric Discharges;

   Abstract : The power quality of modern society relies on the electrical properties of the dielectric insulators used in the power industry. Much research work has been conducted with an aim to understand and predict the insulating behaviour of such materials under different kinds of atmospheric conditions, but still there are many unsolved problems. READ MORE

5. 3. Assessment of Interruption Costs in Electric Power Systems using the Weibull-Markov Mode

   Author : Jasper van Casteren; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; semi-Markov model; interruption cost; power system reliability; customer damage function; duration distribution; reliability worth;

   Abstract : Modern competitive electricity markets do not ask for power systems with the highest possible technical perfection, but for systems with the highest possible economic efficiency. Higher efficiency can only be reached when accurate and flexible analysis tools are used. READ MORE

6. 4. Modelling and Evaluating Effect of Automation, Protection, and Control on Reliability of Power Distribution Systems

   Author : Ying He; KTH; []
   Keywords : electric distribution system; reliability assessment; protection; automation; control;

   Abstract : This thesis deals with modeling and evaluating effect ofautomation, protection, and control on reliability of powerdistribution systems. It presents the work and results of theproject ``Impacts of Distribution Automation on SystemReliability'' within the research program ``New DistributionSystems for Power Utilities'' performed at Competence Centre inElectric Power Engineering, KTH. READ MORE

7. 5. Electromagnetic transformer modelling including the ferromagnetic core

   Author : David Ribbenfjärd; Göran Engdahl; David Jiles; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Power transformer; hysteresis; dynamic hysteresis; dynamic magnetization; eddy currents; excess losses; leakage flux; winding model; core model; magnetic measurements; magnetic materials; Electric power engineering; Elkraftteknik;

   Abstract : In order to design a power transformer it is important to understand its internal electromagnetic behaviour. That can be obtained by measurements on physical transformers, analytical expressions and computer simulations. READ MORE