Print Email Facebook Twitter Why Low Voltage Direct Current Grids? Title Why Low Voltage Direct Current Grids? Author Vargas Evans, M.A. Contributor Van Wijk, A. (mentor) Popovic-Gerber, J. (mentor) Van der Sluis, L. (mentor) Faculty Applied Sciences Department Radiation, Science and Technology Programme Fundamental Aspects of Materials and Energy, Sustainable Energy Technology Date 2013-07-04 Abstract Although the use of DC in power systems was discarded years ago due to its inefficiency and non-economic feasibility, in the last decade the technological advance of power electronics has enabled DC to make its way back to the power system. This paper investigates the use of DC for electricity distribution at voltage levels below 1500V. A flexible and practical DC system at +350V, ±350V and ±700V is introduced and assessed in four case studies that compare AC to DC. It is concluded that: 1) DC grids outperform AC grids in large distribution systems, especially with increasing penetration of distributed generation. Results show energy savings up to 5%; lower ecological damage; 65% copper savings; and less capital investment due to removal of unnecessary equipment and reduced resistive losses. 2) Limitations exist in the lack of standards and regulations; and availability of suitable DC appliances and equipment. Subject Direct CurrentDCEnergy EfficiencyLVDC To reference this document use: http://resolver.tudelft.nl/uuid:7698b126-a770-4712-83fb-8a9be29a949c Part of collection Student theses Document type master thesis Rights (c) 2013 Vargas Evans, M.A. Files PDF mscThesis_-_Manuel_Vargas_Evans.pdf 5.76 MB Close viewer /islandora/object/uuid:7698b126-a770-4712-83fb-8a9be29a949c/datastream/OBJ/view