Technical solution/recommendations for large penetration of DGs in KEPCO distribution network

The interconnection standards/guidelines have been designed to prevent unfavourable interconnection problems of the DG (Dispersed Generations). Therefore, in practice, unit or cumulative interconnection capacity for particular voltage levels have been be limited to maintain admissible power quality and reliability. Recently, the interconnection standard/guidelines in South Korea are revised at Feb. 2012. In this paper, we briefly introduce the revised version of the DG interconnection standard/guidelines in South Korea and technical solutions/recommendations for large penetration of DG in the KEPCO (Korea Electric Power Company) distribution network.