高铁站内含有冷热电等多种负荷,是综合能源系统(integrated energy system,IES)的典型应用场景之一,同时相比常规工业园区,高铁站体巨型空腔具有明显的储能特性。文章针对国内某新型高铁站的规划设计,提出了一种考虑高铁站站体建筑储能...高铁站内含有冷热电等多种负荷,是综合能源系统(integrated energy system,IES)的典型应用场景之一,同时相比常规工业园区,高铁站体巨型空腔具有明显的储能特性。文章针对国内某新型高铁站的规划设计,提出了一种考虑高铁站站体建筑储能特性的综合能源系统规划方法。首先建立了综合能源系统的供能框架,在此基础上基于高铁站的建筑特性及站内温度搭建了建筑储能系统模型,之后将该模型集成到综合能源系统框架中。整体规划以年化成本为优化目标,并考虑相应的温度舒适性成本,采用双层优化的方法对系统进行优化。仿真结果表明了所提方法的有效性和合理性。展开更多
The high-speed railway integrated grounding system is the basic guarantee for the safe and stable operation of the railway. It is the world’s largest long-distance horizontally elongated joint grounding system, which...The high-speed railway integrated grounding system is the basic guarantee for the safe and stable operation of the railway. It is the world’s largest long-distance horizontally elongated joint grounding system, which stretches the length of hundreds to thousands of kilometers, and its structure is not only different from power station and substation grounding system, but also different from the transmission line tower, lightning rod and other small grounding devices. There is little research information on the grounding impedance of high-speed railway integrated grounding system. This paper adopted 0.618 compensation method and reverse away method respectively, measured a section of high-speed railway integrated grounding system grounding impedance by JD16 and CA6425. Measurement results are in good agreement using those two type instrument. By using 0.618 compensation method, the measurement result will be gradually converged at 0.3 Ω with the increasing of current electrode distance, which is the real grounding impedance of integrated grounding system. By using reverse away method, the maximum measurement result difference is less than 0.024 Ω with the lead of current electrode distance increasing. The measurement results will be rapidly converged 0.25 Ω. The results showed that the reverse away method is helpful to shorten the length of current electrode wiring. The measurement error will be small when the current electrode wiring is longer.展开更多
文摘高铁站内含有冷热电等多种负荷,是综合能源系统(integrated energy system,IES)的典型应用场景之一,同时相比常规工业园区,高铁站体巨型空腔具有明显的储能特性。文章针对国内某新型高铁站的规划设计,提出了一种考虑高铁站站体建筑储能特性的综合能源系统规划方法。首先建立了综合能源系统的供能框架,在此基础上基于高铁站的建筑特性及站内温度搭建了建筑储能系统模型,之后将该模型集成到综合能源系统框架中。整体规划以年化成本为优化目标,并考虑相应的温度舒适性成本,采用双层优化的方法对系统进行优化。仿真结果表明了所提方法的有效性和合理性。
文摘The high-speed railway integrated grounding system is the basic guarantee for the safe and stable operation of the railway. It is the world’s largest long-distance horizontally elongated joint grounding system, which stretches the length of hundreds to thousands of kilometers, and its structure is not only different from power station and substation grounding system, but also different from the transmission line tower, lightning rod and other small grounding devices. There is little research information on the grounding impedance of high-speed railway integrated grounding system. This paper adopted 0.618 compensation method and reverse away method respectively, measured a section of high-speed railway integrated grounding system grounding impedance by JD16 and CA6425. Measurement results are in good agreement using those two type instrument. By using 0.618 compensation method, the measurement result will be gradually converged at 0.3 Ω with the increasing of current electrode distance, which is the real grounding impedance of integrated grounding system. By using reverse away method, the maximum measurement result difference is less than 0.024 Ω with the lead of current electrode distance increasing. The measurement results will be rapidly converged 0.25 Ω. The results showed that the reverse away method is helpful to shorten the length of current electrode wiring. The measurement error will be small when the current electrode wiring is longer.
