Essays about: "Phase Locked Loop"

Showing result 6 - 10 of 42 essays containing the words Phase Locked Loop.

1. 6. Frequency Stability of Power Electronic Based Power System with 100% Renewable Energy.

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Abdullah Albalali; [2022]
   Keywords : energy storage; frequency control; synchronous generators; distributed power generation; virtual synchronous machine VSM ; PSCAD.; energilagringssystem; frekvenskontroll; synkrona generatorer; distribuerad kraftproduktion; virtuell synkron maskin; PSCAD.;

   Abstract : The modern power system is aiming to progress away from conventional synchronous machine  based power generation towards converter dominated system that leads to extensively high penetration of renewable energy such as wind and PV. This transition of modern power system toward converter based renewable energy comes with new challenges as the conventional synchronous generation is being replaced by converter based power system (CBPS). READ MORE

3. 7. Polyphase Symbol Timing Synchronization on a Software-Defined Radio

   University essay from Luleå tekniska universitet/Institutionen för system- och rymdteknik

   Author : Georg Lundberg; [2021]
   Keywords : SDR; Software-Defined Radio; Polyphase; Symbol Timing Synchronization; Satellite Communication; MATLAB; Simulink; Xilinx; English;

   Abstract : Software-defined radio is a continuously developing technology applied in fields of mobile communications and among others. It is a radio communication system where software is used to implement parts of its functionality in an embedded system or computer. READ MORE

4. 8. Evaluation of Symmetrical Components Theory in Power Systems with Renewable Sources

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Daniil Danylov; [2021]
   Keywords : Symmetrical components theory; fault analysis; renewable sources; power electronics; PSCAD EMTDC; two bus system; inverter-based resources; line protection; nonlinear source.; Teori om symmetriska komponenter; felanalys; förnybara källor; kraftelektronik; PSCAD EMTDC; tvåbussystem; inverterbaserade resurser; linjeskydd; icke- linjär källa.;

   Abstract : Rapidly growing Inverter- Based Resources (IBR) have different fault properties compared to Synchronous Generators (SG). Therefore, it is necessary to study the fault behavior of systems that contain different types of IBR and compare it to the conventional system responses in order to understand what steps should be taken to adapt conventional protection settings for new types of sources. READ MORE

5. 9. PLL for 5G mmWave

   University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

   Author : Daniel Bakic; Jinzhuo Wu; [2020]
   Keywords : PLL; 5G-NR; RFIC; beamforming; 22nm FDSOI; charge pump; vco; loop filter; frequency divider; phase detector; phase noise; jitter; Technology and Engineering;

   Abstract : This paper presents research and implementation of a high frequency Integer-N phase-locked loop for digital beamforming in mobile devices. Multiple topologies investigated whereof two were implemented. The transient phase noise of the PLL is -104dB/-95dB @1MHz. The output frequency range is from 8G-10G. READ MORE

6. 10. Development of measurement algorithm in an industrial PLC : An evaluation of DSOGI-PLL for real time measurements

   University essay from Uppsala universitet/Institutionen för teknikvetenskaper

   Author : Caroline Moberg; [2019]
   Keywords : Phase locked loop; DSOGI-PLL; Symmetrical component extraction; Measurement algorithm;

   Abstract : The aim of this project was to devise an algorithm for three phase AC power grid measurements that could be utilized in an excitation system for controlling generators. This application requires fast and accurate measurements even when the voltages in the power grid are characterized by unbalanced three-phase, frequency variations and harmonic distortions. READ MORE