SIMULATION OF ELECTRIC POWER STORAGE SYSTEMS OPERATING IN THE CONDITIONS OF VOLTAGE REGULATION ON THE BUSES OF TRACTION SUBSTATIONS

Sharply alternating traction load in traction power supply systems causes a wide range of voltage changes at the pantographs of electric stocks and the power consumption of traction substations. Various technologies are used to stabilize the voltage and limit overloads of power equipment at traction substations and linear devices of the contact network. These devices are regulated by changing their parameters, which leads to a change in the voltage level or equipment load. The main task of regulated devices in traction power supply systems is to maintain the voltage level on the buses of traction substations or linear devices. Solving the problems of stabilizing the voltage level in the contact network is carried out using simulation modeling, in which various device placement options and algorithms for regulating power and voltage are subject to consideration. The paper discusses the effectiveness of voltage regulation when comparing voltage regulation options at traction substations and switching stations using energy storage systems. Based on the schematic diagram of the inter-substation area, the developed simulation model and the voltage regulation algorithm, the results of estimating the voltage level on the switching station buses for the generated electrical load are obtained. During the simulation of energy processes in a traction power supply system containing an electric power storage device, the results are obtained for various operating modes, allowing to evaluate the effectiveness of voltage regulation on the buses of a switching station while stabilizing the voltage on the buses of adjacent traction substations.