Essays about: "Övertoner"

Showing result 16 - 20 of 31 essays containing the word Övertoner.

1. 16. Filters for 5G mmWave

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

   Author : Alberto Monje Real; [2019]
   Keywords : ;

   Abstract : Periodic structures are an emerging eld in nowadays's microwave designs.These structures have been proven to be capable of achieving compact, ecientsolutions to problems such as leakage, or surface waves. Moreover, they haveshown interesting properties in dierent microwave related areas, such as lensantenna design, and gap-waveguide technology. READ MORE

3. 17. Evaluation of the wavefronts and spatial structures of ultrashort pulses passing through a micro-channel plate

   University essay from Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionen

   Author : Simon Ek; [2019]
   Keywords : high-order harmonic generation; HHG; micro-channel plate; MCP; attophysics; Physics and Astronomy;

   Abstract : The first aim of this project is to make high-order harmonic (HHG) setups more compact and user-friendly, by including a micro-channel plate (MCP). Simulations of the transmission properties of an MCP has been performed. These simulations displayed introduced structure in the far field, but a very well behaved beam in the near field. READ MORE

4. 18. Mitigation of Background Harmonic Amplification at PCC Using Active Filtering of STATCOM

   University essay from KTH/Elkraftteknik

   Author : Luai Malki; [2017]
   Keywords : FACTS; Hybrid-STATCOM; TSC; TSR; VSC; passive filter; active filter; PWM; MMC; passivity; input admittance; resonance; harmonics; ABB;

   Abstract : Shunt compensation devices have been a powerful candidate for expanding the limits of transmission facilities, allowing more active power transport and supporting voltage and overall stability of the network. An example of such devices is the Static Synchronous Compensator (STATCOM) which is based on Voltage Source Converter (VSC) which synthesizes output voltage and current for mainly reactive power compensation. READ MORE

5. 19. Quality Control of Light Emitting Diodes : Using power factor, harmonic distortion and light to power ratios

   University essay from Uppsala universitet/Fasta tillståndets elektronik

   Author : Abdirahman Abdulahi Mohamed; Wännström Aksel; [2016]
   Keywords : Quality Control; LED; Bulb; Power Factor; Light Emitting Diodes; harmonic distortion; light to power ratios; Kvalitets Kontroll; Lampa; LED; Övertoner; Elkvalite;

   Abstract : This study addresses quality control for Light Emitting Diodes (LED) according to fouraspects, the power factor of LED lamps, their harmonics and total harmonic distortion (THD), the luminosity for total power to radiated power ratio. It focuses on four brands and six different LED lamps, and concludes that IKEA's LED lamps pertain as the quality lamp, with a power factor over 0. READ MORE

6. 20. Basic design of an HVDC interconnection in Brazil.

   University essay from KTH/Skolan för elektro- och systemteknik (EES)

   Author : Sylvain Bancal; [2016]
   Keywords : HVDC; Optimization; Conductor selection; Harmonics; Passive filters; Minimax; HVDC; optimering; ledarval; övertoner; passiva filter; Minimax;

   Abstract : HVDC technologies are very effective on long distance power transmission but generally raise large interrogations as how to determine an effective configuration. This thesis propose part of an optimization process in order to determine an optimal configuration for an HVDC installation, emphasizing in this report the impact of the conductor selection and of the filter design. READ MORE