项目对牵引扩能供电系统结构、故障类型以及继电保护等做了深入而细致的研究，结合国际上最先进的故障诊断理论——基于模型诊断理论，建立牵引供电系统动态不确定性模型，开发出牵引供电智能诊断系统。-Expansion projects on the traction power supply system structure, fault type and the relay is done and in-depth and meticulous research, combined with the m