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The structure of work of the device allowing to provide cathodic protection of oil platforms and constructions is considered. The existing system of pulse cathodic protection is improved, new circuit decisions which allow to provide uninterrupted operation of giving of electric energy in system of a protected construction are offered and to increase service life of power supplies and all system as the whole. The urgency of the offered device is proved by imperfection of maintained systems of protection on the oil platforms extracting hydrocarbonic raw materials, lying down under an ocean floor, the sea or other water space. Corrosion of metal parts of a sea platform is natural spontaneous process, to stop which or completely to supervise it is practically impossible. Many scientists such as Garaev I.G.,Anashkin A.A., Chuljuchkin V.V. and many other in their works have reflected a considerable quantity of variants of perfection of systems, but any of them has not developed the independent automated system which is not requiring service. Therefore a question of perfection of systems of protection against corrosion of metal constructions of sea platforms till now remains opened and actual. The offered system will provide protection against aggressive influence of the sea environment of oil metal constructions and platforms. One of the vulnerable parts of system of protection is the source of uninterrupted giving by electric energy on which constancy of a signal quality of cathodic protection depends also. Accordingly, authors offer to improve a source of electric energy of cathodic protection. Visually to present work of the offered scheme, authors of article offer to create computer model in program MATLAB. For creation of separate blocks of computer model the review of the mathematical equation describing work of a power part of a pulse voltage stabilizer is executed. The mathematical model of work of a pulse voltage stabilizer on which input the store is connected capacitor is developed. The block diagramme of a pulse voltage stabilizer and equivalent circuit of intervals of time when the stabilizer transistor is in an open condition is developed. On the basis of mathematical model the imitating model of the offered device in program MATLAB is developed and investigated. Teamwork of a pulse voltage stabilizer and the capacitor store is considered, characteristics of dependence of pressure of the category from an operating time are investigated.

vestnik gosudarstvennogo universiteta morskogo i rečnogo flota imeni admirala s. o. makarova/vestnik gosudarstvennogo universiteta morskogo i rečnogo flota imeni admirala s.o. makarova

THE INVESTIGATION OF OPERATION PULSE VOLTAGE REGULATOR FOR SUPPLYING CATHODIC PROTECTION OF OFFSHORE RIGS