Sökning: "Power Systems Components"
Visar resultat 1 - 5 av 435 avhandlingar innehållade orden Power Systems Components.
1. Vulnerability Analysis for Critical Infrastructures
Sammanfattning : The rapid advances in information and communication technology enable a shift from diverse systems empowered mainly by either hardware or software to cyber-physical systems (CPSs) that are driving Critical infrastructures (CIs), such as energy and manufacturing systems. However, alongside the expected enhancements in efficiency and reliability, the induced connectivity exposes these CIs to cyberattacks exemplified by Stuxnet and WannaCry ransomware cyber incidents. LÄS MER
2. Electromagnetic characterization of power electronic systems
Sammanfattning : Propelled by increased global awareness and demand for clean energy systems, there is a growing trend in transportation, utility, industrial, and residential applications towards the utilisation of power electronic systems with enhanced power ow controllability and eciency. Examples of power electronics applications include terminal converters in high-voltage direct Current (HVDC) transmission; exible AC transmission systems (FACTS); and converters to interface alternative energy systems such as wind turbines to the grid, variable-speed motor drives in pump systems, vehicular propulsion systems, air-conditioners, and refrigerators. LÄS MER
3. Logistics systems for recycling : on the influence of products, structures, relationships and power
Sammanfattning : The environmental trend, and environmental legislation, has during the past decade grown stronger, and with it the focus on environmental issues within many fields of research and practice. This has implications for logistics, and the focus in this dissertation is on the logistics systems that are needed to realise recycling of end-of-life products: logistics systems for recycling (LSRs). LÄS MER
4. Runtime Management of Multiprocessor Systems for Fault Tolerance, Energy Efficiency and Load Balancing
Sammanfattning : Efficiency of modern multiprocessor systems is hurt by unpredictable events: aging causes permanent faults that disable components; application spawnings and terminations taking place at arbitrary times, affect energy proportionality, causing energy waste; load imbalances reduce resource utilization, penalizing performance. This thesis demonstrates how runtime management can mitigate the negative effects of unpredictable events, making decisions guided by a combination of static information known in advance and parameters that only become known at runtime. LÄS MER
5. Design and Identification of Wireless Transmitters for a Low-power and Secure Internet of Things
Sammanfattning : Wireless communication is a key enabler for connecting billions of Internet of Things devices. For networked embedded devices operating on limited energy resources, wireless communication dominates the power consumption. LÄS MER