Sökning: "load frequency control"

Visar resultat 1 - 5 av 76 uppsatser innehållade orden load frequency control.

1. 1. Analys och vidareutveckling av simuleringsmiljö för LFC-reglering inom NBM-programmet

   Master-uppsats, Uppsala universitet/Institutionen för fysik och astronomi

   Författare :Marcus Baumann; [2023]
   Nyckelord :Load frequency control; Power system simulator; Nordic Balancing Model; ARISTO;

   Sammanfattning : The control and balancing measures for achieving safe grid operation in the Nordic power grid is becoming increasingly complex with larger penetrations of renewable power, new guidelines aiming to increase digitalisation and automation alongside integration into European balancing platforms. The power grid operators are faced with new challenges for safely operating the grid leading to an increased need for theoretical and practical education. LÄS MER

3. 2. Parallel Operation of Grid-Forming Power Inverters

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

   Författare :Alessia Camboni; [2023]
   Nyckelord :;

   Sammanfattning : The use of renewable energy sources has been increasing during the last few years, both to obtain a less impacting energy production, and because of the limited fossil resources. Renewable sources are connected to the grid using inverters, which can be controlled in two main modes, grid-following, and grid-forming. LÄS MER

4. 3. Evaluation of key performance indices for frequency quality : A method for evaluating frequency stability in the Nordic power system

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

   Författare :Sophia Larbi Engelbrektsson; [2023]
   Nyckelord :Ancillary Services; Kinetic Energy; Frequency Dependent Load; Frequency Stability; Frequency Quality; KPI; Nordic Power System; Frekvensberoende Last; Frekvenskvalité; Frekvensstabilitet; Kinetisk Energi; Nordiska Elsystemet; Nyckeltal; Stödtjänster;

   Sammanfattning : The Nordic power system is in a changing phase, with more power electronic interfaced connections, and HVDC connections to other synchronous areas, which impacts the frequency quality. This is a challenge for the transmission system operator of Sweden, Svenska Kraftnät, who, with the other Nordic transmission system operators, is responsible for the physical balancing of the Nordic power system. LÄS MER

5. 4. Analysing the Effect of Working Memory Training on Brain Networks Using MEG and Neuroimaging

   Master-uppsats, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

   Författare :Jeanie Dawnbringer; [2022]
   Nyckelord :Brain networks; Magnetoencephalography; Working memory; Plasticity; Neuroimaging;

   Sammanfattning : Introduction: The brain can change its structure and functionality as a result ofexternal factors. The working memory (WM) of the brain is where informationcan be held and manipulated during a short period of time, with the purpose ofachieving higher cognitive functions such as reasoning and learning. LÄS MER

7. 5. Continuous Control SetModel Predictive Control of Permanent Magnet Synchronous Motor

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

   Författare :Prithivirajan Subramaniyane; [2022]
   Nyckelord :Interior permanent magnet synchronous motor; Continuous control set-Model predictive control; Linear quadratic regulator; Quadratic programming; Interior permanent magnet synchronous motor; Continuous control set-Model predictive control; Linear quadratic regulator; Quadratic programming;

   Sammanfattning : The thesis provides design methods for developing Continuous Control SetModel Predictive Control and Linear Quadratic Regulator for Interior mounted Permanent Magnet Synchronous Motor drive. The software for these controllers are implemented in the prototype motor at China Euro Vehicle Technology (CEVT) to estimate the computation time. LÄS MER