新一代智慧型牵引供电系统关键技术与应用示范

针对城市轨道交通牵引供电系统存在的系统复杂、设备种类多、再生制动能量浪费等问题,介绍新一代智慧型牵引供电系统及其显著技术特征。新一代智慧型牵引供电系统具备大功率四象限变流、混合式牵引供电、分散式无功补偿、分布式协同吸收、在线智能融冰、故障诊断及剩余寿命预测等多项关键核心技术,并且根据应用需要,主电路可采用多种典型应用方案。最后给出目前在北京、郑州等城市已经取得的一些工程应用成果,为进一步全面推广应用奠定基础。

Study and Application of New Generation Intelligent Traction Power Supply System

In order to overcome the shortcomings such as complexity of the whole system,diversity of the equipment,and waste of regenerative braking energy,a novel intelligent power supply system of urban railway transit is proposed.The obvious technical characteristics of the system is also presented.Several key technologies are introduced,which include high power conversion,hybrid power supply,distributed reactive compensation,distributed collaborative absorption,online intelligent ice-melting,fault diagnosis and remaining life prediction.According to the application requirements,some typical substation schemes with the four-quadrant converter are given.The important application results in Beijing and Zhengzhou subway lines are show,which will lay a foundation for further application.