Four Samples Method for the Selection of Sinusoidal Components Parameters of Power System Emergency Mode

Application of regenerative braking on electric rolling stock

“…− The presence of mechanical stability (if at a steady state of motion for any reason the speed changes, then the braking force should also automatically change); − The presence of external electrical stability (the ability to restore stable electrical equilibrium as a result of any transient process arising from external influences); − The presence of internal electrical stability (in the presence of parallel electric circuits of motors and a change in current for any reason in one of them, the entire system must come to an equilibrium of currents in these circuits); − The ability to allow the smallest possible deviations of the currents of parallel electric circuits of motors with permissible differences in the diameters of the wheel rims and the magnetization characteristics of the traction motors [22]; − The presence of high energy performance and high operational reliability [23]; − The providing simple and convenient electric braking control. The main disadvantages of electric braking are the implementation of the braking effect only by the moving axles of the locomotives, the complication of electrical equipment and the control system for the operation of the power equipment of the electric rolling stock, and an increase in the heating temperature of the TEM windings [7].…”

Modern methods for diagnosing electric circuits of electric trains

“…Various methods are used to diagnose the technical condition of locomotives, their systems, components, and assemblies [11,[18][19][20]. The variety of diagnostic methods is mainly due to two reasons: the complexity of the diagnostic systems, determined by the complexity of the structure of locomotives as an object of diagnostics, and the variety of technical diagnostics tasks arising from the requirements for the maintenance and repair of locomotives [21][22][23]. Methods for diagnosing locomotives differ depending on the combination of features that characterize the features of the structure and interaction of the three main parts of the technical diagnostics system: the diagnostic object, the system for collecting, converting and transmitting information, and the system for processing, accumulating and displaying the diagnostic results (Figure 2).…”

Development of hardware and a system for analyzing energy parameters based on simulation in SimInTech

“…-the efficiency of analysis and processing of information by the system has been increased, due to ranking according to the degree of influence on the stable operation of electric power parameters [18][19][20]; -the functionality of the information analysis and processing system has been expanded for making management decisions based on the domestic software SimInTech [21][22][23].…”