车载超级电容储能式有轨电车的充电轨设计及应用

车载超级电容储能供电制式已成为现代有轨电车项目的重要发展方向和研究热点,该制式采用的充电装置是通过充电轨(经受电弓)向超级电容快速充电。针对充电轨的载流量和截面尺寸进行分析,提出载流量为2 000 A的新型充电轨;基于刚性悬挂结构进行优化,采用带齿槽道配合T型头螺栓的形式,方便现场调节和定位;阐述充电轨标准段的平面布置方案,结合武汉东湖高新区有轨电车项目,给出每个悬挂点的跨距及拉出值,并以算例验证挠度满足规范要求;设计充电系统回流方案,根据车辆取流状态下前后车轮的范围,确定车站两端绝缘节的最小距离。根据工程经验,提出减小站台处坡度、绝缘节避开信号无金属区、预留电缆敷设孔洞等注意事项。

Application of Modern Tram Charging Rail Based on Vehicular Super-capacitor Energy Storage

The power supply mode of vehicular super-capacitor energy storage has become an important development trend and research focus in modern tram projects. In this mode, a super-capacitor is recharged quickly through the charging rail and pantograph. A complete charging rail scheme is proposed in this report. The current-carrying capacity and sectional dimensions of the charging rail are both analyzed and a new type of charging rail with a current-carrying capacity of 2000 A is presented. The suspension structure is optimized using a combination of a slot channel and a T-head bolt. In addition, the plan of the standard section of the charging rail is described. Combined with the actual project in Wuhan, the span and pull out value of each suspension point are provided. Based on these values, a numerical example is proposed to evaluate the satisfaction of the requirements for deflection. Moreover, the reflux scheme of the charging system was designed. When the vehicle is charging, the minimum distance of the insulation joints between both ends of the station is determined according to the range of the front and rear wheels. Several suggestions are proposed based on engineering experience including reduction of the slope of the platform, separation of the insulation joint from the signal non-metal zone, and the reservation of holes for cable laying.