“…In the past century, there were some process partition methods mainly based on the relative gain array (RGA) (Bristol, 1966;Campo & Morari, 1994). Later, its modified versions such as dynamic RGA (McAvoy, Arkun, Chen, Robinson, & Schnelle, 2003), relative energy gain array (Luo, Liu, & Xu, 2014;Naini, Fatehi & Sedigh, 2009) and interconnection pattern matrix (Ghadami & Shafai, 2013) were also widely studied. These methods realised the partition mainly by computing corresponding gain array from centralised system model.…”