A Fault Analysis on AC Microgrid with Distributed Generations

作者：Shin Seong Su; Oh Joon Seok; Jang Su Hyeong; Chae Woo Kyu; Park Jong Ho; Kim Jae Eon^*

来源：Journal of Electrical Engineering and Technology, 2016, 11(6): 1600-1609.

DOI：10.5370/JEET.2016.11.6.1600

• Microgrid
• Distributed generation
• Overvoltage
• Distribution system
• Islanding

As the penetration of different types of renewable energy sources (RES) and energy storage systeins (ESS) increases, the importance of stability in AC microgrid is being emphasized. Especially, RES and ESS which are operated using power electronics have difference in output characteristics according to control structures. When faults like single-line-to-ground fault or islanding operation occur, this means that a fault should be interpreted in different way. Therefore, it is necessary to analyze fault characteristics in AC microgrid in case of grid-connected mode and standalone mode. In this paper, the fault analysis for AC microgrid is carried out using PSCAD/EMTDC and an overvoltage problem and the countermeasures were proposed.

• 出版日期2016-11