Journal
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
Volume 49, Issue 4, Pages 1678-1686Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIA.2013.2257976
Keywords
Capacity-constrained configuration method (C-Method); onboard supercapacitor array (OSA); power- and capacity-constrained configuration method (P&C-Method); urban rail transit (URT)
Funding
- Shanghai Shentong Metro Operation Group
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Onboard energy storage system (ESS) is an important energy-saving technology in urban rail transit. The key issue of the ESS is the array configuration. In this paper, a new array configuration methodology is developed. First, the limitations of the capacity-constrained configuration method, which is mainly adopted for configuring the onboard supercapacitor array (OSA), are investigated. Second, a mathematical model of the OSA is developed taking into account power and capacity constraints so that the absorbed braking energy can be recovered. Finally, a power-and capacity-constrained configuration methodology (P&C-Method) is proposed. Digital simulation studies are conducted, and the results show that the OSA with the proposed P&C-Method can realize the effective energy recovery of the whole absorbed braking energy and have a high energy-saving effect/weight ratio.
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