CONTROL OF ROWING ELECTRIC MOVEMENTS WHEN SWIMMING IN THE CONDITIONS

Abstract

The article considers the issue of control of a ship with electric propulsion in the conditions of oscillation. When the vessel is moving in excitement, the change in the torque of the generator is such that the diesel engine operates in overload modes with a sharp change in mechanical torques, and the load on the electric propulsion caused by quasi-random oscillation significantly reduces the performance of the propulsion system. The article identifies the main factors influencing the sharp change in the load on the electric motor and analyzes the possibilities of controlling stochastic processes using fuzzy logic technology. Analysis of the ship's oscillation indicates the random nature of the constant disturbance of varying magnitude and duration. During operation of GEU in such conditions there are fluctuations of the moment of resistance on a propeller shaft (if there is no corresponding regulation of excitation of GED), the moments of resistance on shafts of diesels which are defined by electromagnetic moments of generators. The quasi-stationary nature of the change in Mg is explained by the same nature of the change in the moment of resistance to rotation of the propeller. The nature of correlation functions indicates the ergodic nature of the process. Stabilization of the angular velocity by changing the stop of the blades of the azipod (GRP) makes it possible to avoid overload and, therefore, to optimize the control law of the GRP.