Essays about: "Voltage source converter"

Showing result 16 - 20 of 47 essays containing the words Voltage source converter.

1. 16. Design and construction of a voltage source converter for a laboratory setup

   University essay from Uppsala universitet/Elektricitetslära

   Author : Lindblom Henrik; [2019]
   Keywords : Voltage Source Converter; IGBT; HVDC; FPGA;

   Abstract : The grid stability and reliability is facing new challenges as the emerging number of intermittent renewable sources connected to the grid is increasing. With the introduction of the insulated-gate bipolar transistor, the three-phase VSC has grown more popular and is used in many applications. READ MORE

3. 17. Design and evaluation of a battery power supply for a mobile XRF measurement system

   University essay from Mittuniversitetet/Institutionen för elektronikkonstruktion

   Author : Xingyu Zhu; [2019]
   Keywords : XRF; Power; Battery; Boost-circuit; Buck-circuit; Voltage regulator;

   Abstract : X-ray fluorescence is a fast, non-destructive method to measure substances. This method can be used to detect elements in an environmental sample for elemental analysis. Commercially available XRF units exists, but their scope of application is limited. In the university lab, a more generalized XRF setup is available. READ MORE

4. 18. Control Strategies for VSC-HVDC links in Weak AC Systems

   University essay from Uppsala universitet/Avdelningen för systemteknik

   Author : Erik Björklund; [2019]
   Keywords : HVDC; VSC; voltage source converter; control theory; weak ac systems;

   Abstract : In this master thesis control systems for a voltage-source converter HVDC connected to weak ac networks are investigated. HVDC stands for high voltage direct current and is a way to transfer power in the electrical power system. READ MORE

5. 19. Analysis of harmonic cross-modulation in HVDC line-commutated converters for practical design purposes

   University essay from Högskolan Väst/Avdelningen för Industriell ekonomi, Elektro- och Maskinteknik

   Author : Casper Karlsson; [2018]
   Keywords : Power transmission; design; filters;

   Abstract : The use of HVDC has many benefits over HVAC for some specific power transmission purposes. However, two major problems with HVDC links are that the converters produce harmonics and consume reactive power. Electrical filters are used to compensate for this and are a major cost driver of HVDC links. READ MORE

6. 20. Design of Resonant Filters for AC Current Magnification : Heating of Li-ion Batteries by Using AC Currents

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

   Author : Nikolina Djekanovic; [2018]
   Keywords : Current control; injection of alternating current; internal heat dissipation; LCL filter; Lithium-ion batteries; power efficiency; resonance phenomenon;

   Abstract : Using alternating current in order to heat batteries at sub-zero temperatures is a method,which is investigated in-depth by an increasing number of study groups. The thesis considersthe resonance phenomenon with the intention to use alternating current amplificationand battery’s impedance in order to induce power dissipation inside the battery, and in thisway increase its temperature. READ MORE