Sökning: "Lyapunov function"

Visar resultat 16 - 20 av 22 avhandlingar innehållade orden Lyapunov function.

  1. 16. Evaluation of strong nonlinearities in hydropower systems

    Författare :Florian Thiery; Ilmar Santos; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hållfasthetslära; Solid Mechanics;

    Sammanfattning : In hydropower systems, it is essential to avoid catastrophic failures that leads to human and economic losses. Unfortunately, the rotor can behave abnormally since several nonlinear effects occur during start-up, shut downs or when running at nominal speed. LÄS MER

  3. 17. Network Synchronization and Control Based on Inverse Optimality : A Study of Inverter-Based Power Generation

    Författare :Taouba Jouini; Institutionen för reglerteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; networked systems; coupled oscillator synchronization; inverse optimal robust control; power systems; inverter control;

    Sammanfattning : This thesis dwells upon the synthesis of system-theoretical tools to understand and control the behavior of nonlinear networked systems. This work is at the crossroads of three topics: synchronization in coupled high-order oscillators, inverse optimal control and the application of inverter-based power systems. LÄS MER

  4. 18. Performance Analysis and Optimization for Time Critical Networking

    Författare :Emmanouil Fountoulakis; Nikolaos Pappas; Vangelis Angelakis; Qi Liao; Giuseppe Durisi; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Future communication systems will be characterized by heterogeneous traffic and requirements. Time critical applications like cyberphysical systems, augmented and virtual reality, raise the need for a low-latency based network. At the same time, conventional devices requiring for high throughput will co-exist with time critical applications. LÄS MER

  5. 19. Human-Robot Collaboration for Kinesthetic Teaching

    Författare :Julian Salt Ducaju; Institutionen för reglerteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Human-Robot Collaboration; Kinesthetic Teaching; Collaborative Robots;

    Sammanfattning : Recent industrial interest in producing smaller volumes of products in shorter time frames, in contrast to mass production in previous decades, motivated the introduction of human–robot collaboration (HRC) in industrial settings, as an attempt to increase flexibility in manufacturing applications by incorporating human intelligence and dexterity to these processes. This thesis presents methods for improving the involvement of human operators in industrial settings where robots are present, with a particular focus on kinesthetic teaching, i. LÄS MER

  7. 20. Modeling and Stability Analysis of Rate and Power Control Systems in Wireless Communication Networks

    Författare :Anders Möller; Xiaoming Hu; John Baillieul; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Wireless data traffic in cellular networks is currently undergoing a strong global expansion and the demand for high and reliable data throughput increases. Capacity is, however, a limited resource, and in radio resource management a trade-off has to be made between the congestion level, related to cell coverage and interference levels, and the Quality of Service (QoS) or data rates of the users. LÄS MER