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MarketScreener Homepage  >  Equities  >  KOREA EXCHANGE  >  Korea Electric Power Corporation    015760   KR7015760002

KOREA ELECTRIC POWER CORPORATION

(015760)
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New Power Electronics Study Findings Have Been Reported by Investigators at Soongsil University : Electronics - Power Electronics

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08/14/2019 | 04:36pm EDT

2019 AUG 14 (NewsRx) -- By a News Reporter-Staff News Editor at South Korea Daily Report -- Investigators publish new report on Electronics - Power Electronics. According to news reporting originating in Seoul, South Korea, by NewsRx journalists, research stated, “In this paper, a buck-flyback (fly-buck) stand-alone photovoltaic (PV) system for charge balancing with a differential power processor (DPP) circuit is proposed. Conventional feed-back DPP converters draw differential feed-back power from the output of a string converter.”

Financial support for this research came from Korea Electric Power Corporation.

The news reporters obtained a quote from the research from Soongsil University, “Therefore, the power is always through the switches and diodes of the string converter. Because of the returning conduction path, there are always power losses due to the resistance of the switch and the forward voltage of the diode. Meanwhile, the proposed feed-back DPP converter draws power from the magnetically-coupled inductor in a string converter. This shortens the power path of the DPP converter, which reduces the power losses. In addition, the extra winding in the magnetically-coupled inductor works as a charge balancer for battery-stacked stand-alone PV systems. The proposed system, which uses a single magnetically-coupled inductor, can control each of the PV modules independently to track the maximum power point. Thus, it can overcome the power loss due to the power path. It can also achieve charge balancing for each of the battery modules.”

According to the news reporters, the research concluded: “The proposed topology is analyzed and verified using 120W hardware experiments.”

For more information on this research see: Buck-flyback (Fly-buck) Stand-alone Photovoltaic System for Charge Balancing With Differential Power Processor Circuit. Journal of Power Electronics, 2019;19(4):1011-1019. Journal of Power Electronics can be contacted at: Korean Inst Power Electronics, Rm 1103, Korea Science & Technology Bldg, 22, Teheran-Ro 7GIL, Gangnam-Gu, Seoul, 06130, South Korea.

Our news correspondents report that additional information may be obtained by contacting J.H. Park, Soongsil University, Dept. of Electronics Engineering, Seoul, South Korea.

The direct object identifier (DOI) for that additional information is: https://doi.org/10.6113/JPE.2019.19.4.1011. This DOI is a link to an online electronic document that is either free or for purchase, and can be your direct source for a journal article and its citation.

(Our reports deliver fact-based news of research and discoveries from around the world.)

Copyright © 2019 NewsRx LLC, South Korea Daily Report, source Geographic Newsletters

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Financials (KRW)
Sales 2019 59 670 B
EBIT 2019 1 085 B
Net income 2019 -533 B
Debt 2019 62 525 B
Yield 2019 -
P/E ratio 2019 -34,3x
P/E ratio 2020 10,6x
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