Search for dissertations about: "differential protection"

Showing result 1 - 5 of 55 swedish dissertations containing the words differential protection.

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

   Author : Zoran Gajic; Industriell elektroteknik och automation; []
   Keywords : 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

4. 2. Multi-terminal HVDC protections based on transient line modeling

   Author : Niclas Johannesson; Staffan Norrga; Hans-Peter Nee; Jef Berteen; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; HVDC transmission; HVDC protection; traveling wave protection; MTDC protection; Electrical Engineering; Elektro- och systemteknik;

   Abstract : High voltage direct current (HVDC) is considered one of the critical technologies required for the power system to enable the transition toward renewables. With an increasing geographical density of HVDC converters, there is a potential for optimization by connecting more than two converters into a shared DC transmission system, thus forming a multi-terminal HVDC (MTDC) system. READ MORE

5. 3. Towards Scalable Machine Learning with Privacy Protection

   Author : Dominik Fay; Mikael Johansson; Tobias J. Oechtering; Jens Sjölund; Antti Honkela; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Machine Learning; Privacy; Differential Privacy; Dimensionality Reduction; Image Segmentation; Hyperparameter Selection; Adaptive Optimization; Privacy Amplification; Importance Sampling; Maskininlärning; Dataskydd; Differentiell Integritet; Dimensionsreducering; Bildsegmentering; Hyperparameterurval; Adaptiv Optimering; Integritetsförstärkning; Importance Sampling; Datalogi; Computer Science; Informations- och kommunikationsteknik; Information and Communication Technology;

   Abstract : The increasing size and complexity of datasets have accelerated the development of machine learning models and exposed the need for more scalable solutions. This thesis explores challenges associated with large-scale machine learning under data privacy constraints. READ MORE

6. 4. 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 : 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

7. 5. 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;

   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