The file help to run the control study on 100k system:
(1) OpenDSS: run '0-run_100k_no_control_130.DSS'
    % no control
(2) OpenDSS: run '0-run_100k_pri_control_130.DSS'
    % control on primary side
    % and output the power file
(3) Matlab: run 'scd_stg_dg_define.m'
    % define the dg output of secondary side PVs
(4) OpenDSS: '0-run_100k_after_130.DSS'
    % to get the final results with control
