“…First, the majority of the studies on subsea environments have investigated pressure-dependent changes in the cable's L, R, and C, thereby numerically extracting them; however, the change in the entire system has not been taken into consideration [7], [8]. Second, cable-related studies have presented various design methods such as mathematical modeling of a long-distance cable based on the L, R, and C (electrical components) values [2], [3], mathematical cable modeling by taking into account transient distortion frequency [4], and cable model design method using the finite element analysis (FEA) [5]; however, most of these studies have focused on cables with limited lengths of several hundred meters, rendering them inapplicable to subsea plants. Thus, research should be carried out to model a long-distance cable (≥ 2 km) suitable for subsea plants.…”