Search for dissertations about: "cycloconverter"
Found 4 swedish dissertations containing the word cycloconverter.
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1. System Aspects and Modulation Strategies of an HVDC-based Converter System for Wind Farms
Abstract : In this thesis, a new HVDC-based converter system for wind farms is investigated. It is based on a mutually commutated soft-switching converter system and provides a unique integrated solution for the wind turbine generator drive systems, the wind turbine interconnection, and the power conversion for HVDC transmission. READ MORE
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2. On soft-switching isolated AC/DC converters without auxiliary circuit
Abstract : The thesis is concerned with a class of power electronic converter systems that permit bidirectional AC/DC conversion with galvanic separation of the AC and DC sides by a transformer operating at elevated frequency. The systems consist of a capacitively snubbered voltage source converter and a cycloconverter, separated by the mentioned transformer. READ MORE
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3. On Design of a Compact Primary Switched Conversion System for Electric Railway Propulsion
Abstract : In this thesis, a compact and light primary switched conversion system for AC-fed railway propulsion is investigated. It is characterized by soft switching of all converter stages and a source commutated primary converter comprising series connected valves. READ MORE
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4. Novel voltage source converter based HVDC transmission system for offshore wind farms
Abstract : Offshore wind farms have recently emerged as promising renewable energy sources. For increasing distances between offshore generation and onshore distribution grid, HVDC transmission systems based on voltage source converters can be a feasible and competitive solution. READ MORE