Optimal operation of multiple DGs in DC distribution system to improve system efficiency

Soo Hyoung Lee, Yong Cheol Kang, Jung Wook Park

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)


This paper proposes a computationally effective method for optimal operation of multiple distributed generations (DGs) in dc distribution systems to improve their efficiency. There have been many research works to select the optimal sizes of multiple DGs. However, these optimal sizes are valid only in the particular operating point. For optimal operations of power systems, the DG sizes must be determined all the time according to the various load conditions. The proposed method can maintain the distribution system operating in its optimal condition with only single optimization process, without regard to load variations. Therefore, it can moderate the serious problems, derived from inaccurate load forecasting. To verify the performance of the proposed method, the dc system is first implemented with the real distribution system of Do-gok area in Seoul, Korea. Then, the real hourly-load data, acquired from SCADA system in Korea, are used to simulate the practical load variations.

Original languageEnglish
Article number7496830
Pages (from-to)3673-3681
Number of pages9
JournalIEEE Transactions on Industry Applications
Issue number5
Publication statusPublished - 2016 Sept 1

Bibliographical note

Publisher Copyright:
© 1972-2012 IEEE.

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering


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