Essays about: "Harmonic distortion"

Showing result 16 - 20 of 38 essays containing the words Harmonic distortion.

1. 16. Star-C - A New Converter Topology

   University essay from Lunds universitet/Industriell elektroteknik och automation

   Author : Alexander Holmström; [2016]
   Keywords : Multilevel; THD; Cost; Manufacturing; EMC; Converter; Electronics; Power; Inverter; Star-C; Topology; Technology and Engineering;

   Abstract : Power electronics is today used almost everywhere. The development of power electronics hardware is fast, pushing the performance limits. Still the conventional two level converter is the most commonly used converter on the market. The output voltage of the conventional two level converter is generated as pulses. READ MORE

3. 17. Finite Element Simulations of Harmonic Structured Materials in Two Dimensions

   University essay from Lunds universitet/Mekanik

   Author : Jakob Salomonsson; [2016]
   Keywords : Technology and Engineering;

   Abstract : Most of today’s materials show either high strength with low ductility, or relatively low strength combined with high ductility. It is strongly desired in the industry to obtain materials whose mechanical properties can display a combination of high strength and elongation. READ MORE

4. 18. 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

5. 19. 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

6. 20. Performance Evaluation of Medium-Power Voltage Inverters

   University essay from Linköpings universitet/Elektroniska Kretsar och System; Linköpings universitet/Tekniska fakulteten

   Author : Emil Häger; [2015]
   Keywords : Inverter; neutral-point clamped; SPWM; switching losses; input ripple; total harmonic distortion;

   Abstract : Power inverters, used to convert DC power to AC, are often used in e.g. solar power applications. However, they tend to be impractically large and expensive; as such, power miniaturization is an active research area. READ MORE