Cathodic Protection System by Imposed Current for a Vedette

This article deals with the method of cathodic protection by imposed current. This technique reduces the rate of corrosion of a metallic material in the presence of an aqueous medium. Corrosion, its causes, its effects as well as the solution to combat this phenomenon, has been established in this paper. Indeed, the technique of protection by imposed current has been studied extensively in this work. The study and installation of a cathodic protection system imposed on-board the vedette, it is possible to determine the need for a DC current. This study ensures a good protection of the hull and a better location of the anodes. An imposed current regulation system has been studied. This system consists of measuring the potential of the boat’s hull by the reference electrode. With reference to this voltage value, the controller imposes the necessary current injected at the anode to maintain a fixed protection potential. In order to validate this study, simulations results under PSIM software dealing with protection of the hull of the vedette is finally presented.