전압 변동 보상항을 이용한 직류 마이크로그리드의에너지 관리 기법Energy Management Method of DC Microgridsby Using Voltage Compensation Term
- Other Titles
- Energy Management Method of DC Microgridsby Using Voltage Compensation Term
- Authors
- 고병선; 이기영; 김석웅; 김래영
- Issue Date
- Oct-2018
- Publisher
- 전력전자학회
- Keywords
- DC microgrid; Voltage restoration; DC bus signaling; Low-bandwidth communication; Communication delay
- Citation
- 전력전자학회 논문지, v.23, no.5, pp.328 - 335
- Indexed
- KCI
- Journal Title
- 전력전자학회 논문지
- Volume
- 23
- Number
- 5
- Start Page
- 328
- End Page
- 335
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/149190
- DOI
- 10.6113/TKPE.2018.23.5.328
- ISSN
- 1229-2214
- Abstract
- An energy management method of DC microgrids using voltage compensation term is proposed in this study. Droop control is often implemented to operate the DC microgrid. However, the droop control necessarily generates voltage variation. Energy flow is also difficult to control because the droop control mainly focuses on proportional load sharing. To solve these problems, the voltage compensation term based on the low-bandwidth communication is used to determine the operating band of the converter. Energy management and voltage variation minimization can be achieved by judging the operating band according to the magnitude of voltage compensation term. The validity of the proposed method is verified by simulation and experiments.
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