Analysis of Rail Potential and Stray Current with an Unified Chain Model of Dual Traction Power Supply System

• DOI: 10.1007/s40864-024-00215-7
• Publication Date: 2024-04-17T17:01:52Z
• Authors: Ashfaque Ahmed Bh...; Wei Liu; Lingyun Yang; Qingan Ma; Zhe Pan; Songyuan Li; Qian Xu; Mingze Li
• Keywords: Stray voltage; Catenary; Traction substation; Alternating current; Traction power network

Abstract In dual traction power supply systems, the overhead catenary system operates in different modes. It passes across AC section, DC and a neutral part, which influences features properties of feedback current aggregates its effects on stray rail potential. This research paper presents an integrated model (TPS), along with unified chain equivalent circuit model, ground wire through insulation joints fixed AC–DC section under operating positions. To make impedance admittance matrix for network, virtual conductor has been added to balance order TPS. The influence reflex configuration potential, current, distribution potential at stations also calculated. simulation results demonstrate that establishing using wires part can significantly decrease