土耳其安伊高铁电气化综合接地系统优化及实施

Optimization and Implementation of Electrification Comprehensive Grounding System in Turkish Ankara-Istanbul High-speed Railway

土耳其安伊高铁接触网回流线兼作全线综合地线,接地方案与国内高速铁路采用的综合接地系统存在异同。为确保人身、设备安全以及高铁的正常运营,通过结合安伊高铁工程实际,基于原设计接地方案,综合考虑信号系统接地需求,提出接地系统结构、参数的优化设计及其实施方案。通过计算以及仿真分析结果,验证了所提出的接地方案能够满足相应标准要求,使得安伊高铁接地系统更为安全有效、经济合理,对后续海外高速铁路综合接地系统科学有效实施具备一定的指导意义。

The catenary return line can double as comprehensive grounding in Ankara-Istanbul High-speed Railway,there are some similarities and differences for the grounding scheme comparing to domestic high-speed railway system.In order to ensure personal and equipment safety and normal operation of high-speed railway line,the paper proposed optimal design and implementation plan of grounding system structure and parameters based on the actual situation of Ankara-Istanbul highspeed railway project and the existing grounding design scheme and in consideration with the grounding demand of signal system.Through the calculation and simulation analysis results,it is verified that the proposed grounding scheme meets the requirements of the corresponding standards,the grounding system is safe and effective,economic and rational,and has some guiding significance for scientific and effective implementation of comprehensive grounding system for the follow-up overseas high-speed railway project.