energies Article Optimized Sizing and Scheduling of Hybrid Energy Storage Systems for High-Speed Railway Traction Substations Yuanli Liu 1, Minwu Chen 1,*, Shaofeng Lu 2 ID, Yinyu Chen 1 ID and Qunzhan Li 1 1 School of Electrical Engineering, Southwest Jiaotong University, Chengdu 611756, China; ...
Influenced by the growing daily travel demand of citizens and extension of urban land, the construction of the urban railway transit (URT) system is gradually increasing nowadays. This situation implies more electricity consumption in URT and more challenges to URT operation stability. Therefore, based on the existing traction substation, this …
However, little attention has been paid to the interaction of optimal size and daily dispatch of HESS within the entire project period. Therefore, a novel bi-level model of railway traction substation energy management (RTSEM) system is developed, which includes
Maximizing regenerative energy utilization is an important way to reduce substation energy consumption in subway systems. Timetable optimization and energy storage systems are two main ways to improve improve regenerative energy utilization, but they were studied separately in the past. To further improve energy conservation while …
Abstract. Based on the energy-saving and economical operation requirements of high-speed railways, the traction power supply system adopts large-capacity energy storage devices. The paper takes the measured data of a traction substation as an example to compare the energy-saving effects of the two energy …
Therefore, a novel bi-level model of railway traction substation energy management (RTSEM) system is developed, which includes a slave level of diurnal HESS dispatch and a master level of HESS sizing.
The load characteristics of high-speed railway systems have an adverse effect on the three-phase symmetry of the power supply system. A back-to-back converter connected in series to a supercapacitor energy storage device is used to solve the three-phase imbalance problem and the regenerative braking energy recovery problem of trains that occurs …
This paper studies a hybrid energy storage system (HESS) for traction substation (TS) which integrates super-capacitor (SC) and vanadium redox battery (VRB). According to the characteristics of the traction load under actual operating conditions, an energy management strategy with fixed-period control (FPC) is proposed, which fully …