TY JOUR TI MODELING OF MODES OF ELECTRICAL NETWORKS SUPPLYING TRACTION SUBSTATIONS WITH TWELVE-PULSE CONVERTERS KW DC traction power supply systems KW modeling JO Modern Technologies and Scientific and Technological Progress AU Kryukov, A.V. AU Nguyen, Q.H. AU Chan, Z.H. PY 2024 IS 2024 PB Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»