전력전자학회:학술대회논문집 (Proceedings of the KIPE Conference)
- 전력전자학회 2020년도 전력전자학술대회
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- Pages.328-329
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- 2020
새로운 가상 임피던스 선정기법 기반의 적응 드룹을 이용한 직류배전용 AC/DC 컨버터의 병렬운전
Novel Adaptive Virtual Impedance-based Droop Control for Parallel Operation of AC/DC Converter for DC Distribution
- Lee, Yoon-Seong (Sungkyunkwan University) ;
- Kang, Kyung-Min (Sungkyunkwan University) ;
- Choi, Bong-Yeon (Sungkyunkwan University) ;
- Kim, Mi Na (Sungkyunkwan University) ;
- Lee, Hoon (Sungkyunkwan University) ;
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Won, Chung-Yuen
(Sungkyunkwan University)
- 발행 : 2020.08.18
초록
The AC/DC converter, which connects the AC grid to the DC grid in the microgrid, is a critical component in power sharing and stable operation. Sometimes the AC/DC converters are connected in parallel to increase the transmission and reception capacity. When connected in parallel, circulating current is generated due to line impedance difference or sensor error. As a result of circulating current, there is deterioration and loss in particular PCS(Power Conversion System). In this paper, we propose droop control with novel adaptive virtual impedance for reducing circulating current. Feasibility of proposed algorithm is verified by PowerSIM simulation.
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