Yang-Hyun Nam, Sung-Sik Choi, Min-Kwan Kang, Hu-Dong Lee, Ji-Hyun Park, Dae-Seok Rho,
                           2018, A Study on the Large-scale Adoption Method of Distribution System Interconnected
                           with PV System by Energy Storage System, The Transactions of the Korean Institute
                           of Electrical Engineers, Vol. 67, No. 8, pp. 1031-1039
