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Analysis on Voltage Sag in Low Voltage DC Distribution System according to the Number of Poles
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 Title & Authors
Analysis on Voltage Sag in Low Voltage DC Distribution System according to the Number of Poles
Noh, Chul-Ho; Kim, Doo-Ung; Gwon, Gi-Hyeon; Oh, Yun-Sik; Han, Jun; Kim, Chul-Hwan;
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AC-based power systems, having the advantages that voltage transformation and long distance transmission are easy, have been constructed since the last 19th century. However, DC-based power system is paid attention these days because of the development of power electronic devices as well as the increase of digital loads and distributed generation. For instance, the transmission systems using High Voltage DC (HVDC) are commercially operated in the world and the researches on distribution system using Low Voltage DC (LVDC) are gradually increased. This paper analyzes voltage sag, resulted from faults, in LVDC distribution system according to the number of poles. Modeling and simulation with various conditions are conducted by using ElectroMagnetic Transients Program (EMTP). Moreover, some countermeasures to reduce voltage sag in LVDC distribution system are suggested briefly.
Bipolar;Low Voltage DC Distribution System;Power Quality;Unipolar;Voltage Sag;
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교류 배전계통 보호 알고리즘의 직류 배전계통 적용 가능성 검토에 관한 연구,송종일;노철호;권기현;오윤식;한준;김철환;

조명전기설비학회논문지, 2016. vol.30. 11, pp.50-56 crossref(new window)
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