OPERATIONAL IDENTIFICATION OF THE SHIP’S POWER PLANT TECHNICAL CONDITION FOR SOLVING PROBLEMS OF PREVENTIVE MANAGEMENT

Abstract

Possible approaches to solving the problem of operational identification of the technical condition of ship power plants are considered. It is shown that the means of technical diagnostics used on modern ships are intended only for effective maintenance and repair of power equipment and they are not adapted for timely provision of information on the technical condition of the ship’s power plant necessary to ensure preventive management in abnormal operating modes. The definition of operational identification of the technical condition as a process of technical diagnostics of a ship’s power plant for the purposes of preventive and emergency management of its technical condition is given. The provision is substantiated that the means of technical diagnostics should not only identify the inoperable state of the elements of the ship’s power plant, but also predict its functioning mode after the shutdown of the inoperable generator unit and provide information to the warning control equipment about the necessary adjustment of external conditions to ensure its trouble-free transition to a partially operational state. It is shown that, unlike existing diagnostic tools, the goal-setting of operational identification of the technical condition of a ship’s power plant dictates the need to take into account such an important factor as the rate of the controlled parameter change, to determine the probable time for this factor to reach its maximum permissible value. The necessity of mandatory identification of inoperable elements of a ship’s power plant and the implementation of control actions aimed at eliminating an emergency situation until the overload of operable units and disabling them by means of protection is substantiated. It is established that the information obtained as a result of identification will allow the decision-making preparation system to formulate recommendations to the maintenance personnel and the preventive protection system about the necessary impacts on the ship’s power plant in order to exclude emergency situations. The main reasons for the overload of the ship’s power supply system are analyzed, algorithms for the practical solution of the problem of operational identification of the technical condition of the ship’s power plant for cases related to the overload of serviceable machines due to the shutdown of inoperable units are developed.