In recent studies of combined wind-wave energy platforms by Peiffer et al. [8] and Muliawan et al. [9],
the ratio between the inertia of the WEC and that of the FOWT was found to be close to five percent. For
this study three cases shall be investigated. In each case the ratio between the inertia of the WEC and that
of the FOWT shall be 2.5 percent (Case 1), 5 percent (Case 2) and 10 percent (Case 3), respectively as
shown in Table 2.