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논문 기본 정보

자료유형
학술저널
저자정보
DongHee CHOI (Cheongju University)
저널정보
한국정보기술학회 JOURNAL OF ADVANCED INFORMATION TECHNOLOGY AND CONVERGENCE Journal of Advanced Information Technology and Convergence Vol.10 No.2
발행연도
2020.12
수록면
91 - 101 (11page)
DOI
10.14801/JAITC.2020.10.2.91

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초록· 키워드

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Recently, the demand for high penetration of variable renewable energy (VRE) penetration in a power system is increased. In consequence, distribution systems including microgrids confront the increased installation of VRE-based distributed generation. Despite of the high demand of VRE-based distributed generation in a distribution system, the installation of photovoltaic (PV) system in a distribution system has been restricted by various problems. In other words, the hosting capacity for high VRE penetration in a distribution system is limited. This paper analyzes the improvements of hosting capacity VRE penetration of stand-alone microgrid (SAMG) with energy storage system (ESS) by considering virtual-slack (VS) control based on power sensitivity. With the pre-defined power sensitivity, the ESS operates as virtual slack in the SAMG by controlling its bus voltage and phase angle indirectly. Therefore, the ESS enables the increase of VRE penetration in the SAMG. The proposed VS control is realized by analyzing the ESS as a virtual slack in power flow analysis based on power sensitivity. Then its validity is demonstrated with the case study on the SAMG in South Korea with practical data.

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Abstract
1. Introduction
2. Practical Data Based Stand-Alone Microgrid in South Korea
3. Virtual-Slack Power Flow Formulation
4. Simulation Results
5. Conclusion
References

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