“…The experimental results are reported as follows. On the one hand, in Figures 5 and 6, the results associated with the hierarchical controller, that is, Equations (32) and (33), correspond to υ h , i h , u 1av h , ω h , i a h , and u 2av h . The results related to the passive controller, that is, Equations (36) and (37), are υ p , i p , u 1av p , ω p , i a p , and u 2av p .…”