Sökning: "Protection systems"

Visar resultat 1 - 5 av 463 avhandlingar innehållade orden Protection systems.

1. 1. Steady State Operation and Control of Power Distribution Systems in the Presence of Distributed Generation

   Författare :Ferry Viawan; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; distance protection; stochastic assessment; voltage dip; line drop compensation; distribution systems; on-load tap changer; overcurrent protection; sensitive equipment; voltage dip immunity; voltage control; short circuit; reactive power control; pilot protection.; protection coordination; protection; Distributed Generation; losses;

   Sammanfattning : In this thesis, the impact of distributed generation (DG) on steady state operation and control of power distribution systems is investigated. Over the last few years, a number of factors have led to an increased interest in DG schemes. DG is gaining more and more attention worldwide as an alternative to large-scale central generating stations. LÄS MER

3. 2. Automotive Communication Security Methods and Recommendations for Securing In-vehicle and V2X Communications

   Författare :Nasser Nowdehi; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; V2X; security; automotive; vehicular communication; in-vehicle network;

   Sammanfattning : Today’s vehicles contain approximately more than 100 interconnected computers (ECUs), several of which will be connected to the Internet or external devices and networks around the vehicle. In the near future vehicles will extensively communicate with their environment via Vehicle to Vehicle (V2V) and Vehicle to Infrastructure (V2I), together called V2X communications. LÄS MER

4. 3. Dynamic Access Control for Industrial Systems

   Författare :Björn Leander; Hans Hansson; Aida Causevic; Sasikumar Punnekkat; Tomas Lindström; Marina Krotofil; Mälardalens universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cybersecurity; Industrial Automation and Control Systems; Industry 4.0; Access Control; Computer Science; datavetenskap;

   Sammanfattning : Industrial automation and control systems (IACS) are taking care of our most important infrastructures, providing electricity and clean water, producing medicine and food, along with many other services and products we take for granted. The continuous, safe, and secure operation of such systems are obviously of great importance. LÄS MER

5. 4. Towards Intelligent Distribution Systems: Solutions for Congestion Forecast and Dynamic State Estimation Based Protection

   Författare :Ankur Srivastava; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; future-readiness; renewables.; future distribution systems; distribution systems protection; distribution system operator; photovoltaics; probabilistic power flow; Congestion forecast; dynamic state estimation;

   Sammanfattning : The electrical distribution systems are undergoing drastic changes such as increasing penetration level of distributed renewable energy sources, energy storage, electrification of energy-efficient loads such as heat pumps and electric vehicles, etc., since the last decade, and more changes are expected in the future. LÄS MER

7. 5. Towards Systemic Governance of Critical Infrastructure Protection : State and Relevance of a Swedish Case

   Författare :Christine Große; Aron Larsson; Olof Björkqvist; Pär M. Olausson; Alexander Fekete; Mittuniversitetet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Systemic Thinking; Infrastructure; Governance; Critical Infrastructure Protection; Complex Systems; Soft Operations Research; design-oriented Information Systems Research; Integrative System Analysis; KISA; STYREL; Multi-level Planning; Adaption; Emergence; Entropy; Systemic Governance;

   Sammanfattning : The protection of infrastructure that is critical to society’s functionality, survival and progression has gained significance for both national security and research because of its large-scale and interdependent nature. Critical infrastructure can be viewed as a complex, socio-technical system-of-systems that imposes extensive requirements on governance efforts to foster critical infrastructure protection (CIP), regardless of whether it involves public organisations, private organisations or both. LÄS MER