Golikov S. Increasing powers efficiency of autonomous electropower complexes of fishing vessels

Object of research is engine propelling/propulsion complex of a fishery vessel with driving schaft generator from which electric drives of trade mechanisms eat. The purpose of research is development of the technical decisions directed on increase of efficiency of the main engine with joined to it driving shaft generator at operation EPPC with the minimal charge of fuel. Researches were carried out with use of methods of the theory of electric machines, mathematical statistics and the theory of probability. New analytical dependence's for a choice of the most economic modes engine propelling/propulsion complex of the fishery vessel, distinguished from variable loading known for the account driving shaft generator and the screw are received. Dependence of minimally allowable frequency of rotation of the generator on a current of loading at which the generator may work with rated voltage and rated current of excitation is established. The mathematical model offered by Syromjatnikov I.A., for frequency regulations of speed rotation of the asynchronous engine has received the further development by the account of dependences of losses of capacity and a temperature condition of the electric machine. The opportunity of work of the synchronous generator and asynchronous electric drives is proved at the reduced frequency. Area of use - autonomous electric installations.