MODEL ING OF THE CRANE ELECTRIC DRIVE CONTROL SYSTEM OPERTATION MODES, TAKING INTO ACCOUNT TIME CHANGES AT THE MOMENT OF INERTIA OF THE ROTATING MASSES (Eng)

The given paper contains the survey of the available publications, devoted to the study of the processes, occurring in the electromechanical systems of the cranes during lifting/lowering of the load. The analysis of the research carried , showed that the authors of these publications did not take into consideration the change in time of the equivalent moment of inertia of the electric drive system rotating masses, and it is not correct. As in the process of lifting/lowering of the load the moment of inertia of the rotating masses and moment of loading become the time functions it is necessary to perform the simulation of the operation modes of the crane electric drive control system, taking into consideration the varying parameters, caused by changes in the time of the equivalent moment of inertia and loading moment of tractive electric motor in the process of lifting/lowering of the load.