Sökning: "FACTS devices"

Visar resultat 1 - 5 av 24 uppsatser innehållade orden FACTS devices.

  1. 1. Digital Twin Knowledge Graphs for IoT Platforms : Towards a Virtual Model for Real-Time Knowledge Representation in IoT Platforms

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Alejandro Jarabo Peñas; [2023]
    Nyckelord :Internet of Things; Digital Twin; Knowledge Graph; Similarity Metric; Semantic Data Integration; Internet of Things; Digital Twin; Kunskapsgraf; Likhetmetrik; Integrering av Semantiska Data; Internet of Things; Gemelo Digital; Grafo de Conocimiento; Métrica de Similitud; Integración de Datos Semánticos.;

    Sammanfattning : This thesis presents the design and prototype implementation of a digital twin based on a knowledge graph for Internet of Things (IoT) platforms. The digital twin is a virtual representation of a physical object or system that must continually integrate and update knowledge in rapidly changing environments. LÄS MER

  3. 2. Transmission line protection performance in presence of power electronic-interfaced devices : Impact and needed countermeasures in the Swedish transmission system

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Elektricitetslära

    Författare :Hanna Olofsson; [2021]
    Nyckelord :;

    Sammanfattning : The penetration level of power electronic-interfaced devices (PEID:s) in power systems isincreasing, including wind- and solar power, HVDC and FACTS devices. Fault current injectedby PEID:s is lower in magnitude, may lack or contain a reduced negative sequence componentand can have a wide range of phase angles, as opposed to fault current supplied bysynchronous generators (SG:s). LÄS MER

  4. 3. News Media Usage, Political Interest and Political Participation

    Master-uppsats, Göteborgs universitet/Institutionen för journalistik, medier och kommunikation

    Författare :Xiaopeng Pang; [2020-08-19]
    Nyckelord :News media usage; political participation; political interest; age differences; regression analysis;

    Sammanfattning : The discussion in this thesis focus on the relationship between news media usage and political participation. During the last several decades, many researchers have been worried about the decline of political participation, however, more and more opinions believe that political participation has not declined, but just transformed from traditional forms to new forms. LÄS MER

  5. 4. Reinforcement Learning for Grid Voltage Stability with FACTS

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för informationsteknologi

    Författare :Joakim Oldeen; Vishnu Sharma; [2020]
    Nyckelord :Reinforcement learning; Machine learning; Q-learning; DQN; TD3; Electrical power systems; Voltage stability; Flexible alternating current transmission systems; FACTS;

    Sammanfattning : With increased penetration of renewable energy sources, maintaining equilibrium between production and consumption in the world’s electrical power systems (EPS) becomes more and more challenging. One way to increase stability and efficiency in an EPS is to use flexible alternating current transmission systems (FACTS). LÄS MER

  7. 5. Investigation of blockchain applicability to Internet of Things within supply chains

    Master-uppsats, Uppsala universitet/Industriell teknik

    Författare :Johan Älvebrink; Maria Jansson; [2018]
    Nyckelord :Blockchain; Internet of Things; supply chain; device; smart contract; private public blockchain.;

    Sammanfattning : Internet of Things (IoT) means that physical objects will be able to interact and communicate via embedded systems. This will lead to a distributed network of devices that can communicate with both humans and each other. One application area is in improving supply chain management. LÄS MER