Search for dissertations about: "differential protection"

Showing result 1 - 5 of 46 swedish dissertations containing the words differential protection.

  1. 1. Differential Protection for Arbitrary Three-Phase Power Transformers

    Author : Zoran Gajic; Industriell elektroteknik och automation; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; electric power systems; power transformers; differential protection; power system protection;

    Abstract : This thesis describes how to provide standardized, current based, differential protection for any three-phase power transformer, including phase-shifting transformers with variable phase angle shift and transformers of all construction types and internal on-load tap-changer configurations. The use of standard transformer differential protection for such applications is considered impossible in the protective relaying standards and practices currently applied. READ MORE

  2. 2. Go the Extra Mile for Accountability : Privacy Protection Measures for Emerging Information Management Systems

    Author : Jenni Reuben; Simone Fischer-Hübner; Sabrina Kirrane; Karlstads universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; accountability; Privacy By Design PdD ; privacy risks; Privacy Impact Assessment PIA ; audits; privacy compliance; access control; differential privacy; graphs; edge-labeled graphs; Semantic Web; Computer Science; Datavetenskap;

    Abstract : The thesis considers a systematic approach to design and develop techniques for preventing personal data exposure in next generation information management systems with the aim of ensuring accountability of data controllers (entities that process personal data).With a rapid growth in the communication technologies, heterogenous computing environments that offer cost-effective data processing alternatives are emerging. READ MORE

  3. 3. Asymptomatic Bacteriuria. Protection against, and differential diagnosis towards symptomatic Urinary Tract Infection

    Author : Fredrik Sundén; Helsingborg Kliniska Vetenskaper; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    Abstract : Urinary tract infections (UTIs) are among the most common infectious diseases in humans, with a subset of sus- ceptible individuals who experience recurrent episodes. e increase in antibiotic resistance in gram-negative uropathogens, due to antibiotic overuse, is a strong rationale for developing therapeutic alternatives and to improve diagnostics. READ MORE

  4. 4. Some Control Applications in Electric Power Systems

    Author : Magnus Akke; Industriell elektroteknik och automation; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; load switching.; power oscillations; differential equation algorithm; transmission line protection; computer relaying; frequency estimation; DC cable; magnetic compass; Automation; robotics; control engineering; Automatiska system; robotteknik; reglerteknik;

    Abstract : This thesis presents some control applications in electric power systems. The work consists of the four parts: interaction between DC cables and ship steering autopilots; frequency estimation; computer relaying; field tests using load switching to damp power oscillations. READ MORE

  5. 5. Cryptographic Tools for Privacy Preservation and Verifiable Randomness

    Author : Carlo Brunetta; Chalmers University of Technology; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Confidentiality; Verifiable Randomness; Differential Privacy; GDPR; Privacy; Cryptography;

    Abstract : Our society revolves around communication. The Internet is the biggest, cheapest and fastest digital communication channel used nowadays. Due to the continuous increase of daily communication among people worldwide, more and more data might be stolen, misused or tampered. READ MORE