Coordinated Control Algorithm for Distributed Battery Energy Storage Systems for Mitigating Voltage and Frequency Deviations. - Soon-Jeong Lee; Jun-Hyeok Kim; Chul-Hwan Kim; Seul-Ki Kim; Eung-Sang Kim; Doo-Ung Kim; Khawaja Khalid Mehmood; Saad Ullah Khan 002 (IEEE Trans. Smart Grid, 2016)