Stany przejściowe w filtrach wejściowych napędów trakcyjnych sterowanych impulsowo przy pracy silnikowej i prądnicowej

Analysis of stable operation conditions of the input filters of the mine locomotives' drive systems was presented in the paper. Equations describing the drive system in various operation states were formulated on the basis of a simplified model of the traction system. The points of balance were obtained and linearization of the system was carried out using the power series method and Jacobi matrix. Conditions of stable operation concerning the minimum value of the input filter capacitance depending on the parameters of the supply source and traction network and also on the characteristics and operation states of the drive were given. Special attention was paid to the analysis of the stable operation conditions in the generating mode during braking. Selected results of simulation and laboratory tests concerning the stable operation conditions of the input filter of the drive system of the pulse-mode controlled mine locomotive were presented. Laboratory tests were carried out using a laboratory stand equipped with a 45 kW traction motor of the mine locomotive type Ld 31.