Efficient Urban Railway Design Integrating Train Scheduling, Wayside Energy Storage, and Traction Power Management

カテゴリ: 論文誌(論文単位)

グループ名: 【D】産業応用部門（英文）

発行日: 2019/11/01

タイトル(英語): Efficient Urban Railway Design Integrating Train Scheduling, Wayside Energy Storage, and Traction Power Management

著者名: Warayut Kampeerawat (Department of Electrical Engineering and Information Systems, Graduate School of Engineering, The University of Tokyo), Takafumi Koseki (Department of Electrical Engineering and Information Systems, Graduate School of Engineering, The

著者名(英語): Warayut Kampeerawat (Department of Electrical Engineering and Information Systems, Graduate School of Engineering, The University of Tokyo), Takafumi Koseki (Department of Electrical Engineering and Information Systems, Graduate School of Engineering, The University of Tokyo)

キーワード: wayside energy storage，railway power management，regenerative power，train scheduling

要約(英語): This paper presents a design of efficient urban railways based on an integrated design of train schedule and use of wayside energy storage. The main objective is to simultaneously design the train operation, infrastructure, and traction power management scheme to enhance energy-saving operation and the flexibility of energy management. The proposed design aims to minimize the energy supplied from substations and the energy capacity of the energy storage system (ESS). The objective function is formulated as the weighted sum of the energy-saving term and cost-saving term. Numerical case studies are performed on the Bangkok mass transit system (BTS) to demonstrate the performance of the proposed design. From the results, it is seen that the designed timetable parameters and the appropriate installation scenario of ESS (i.e. capacity and location) obtained from the proposed design can improve the energy-saving performance by up to 10.35% compared with the nominal operation. Moreover, the reduction of peak power and voltage regulation at substations can be achieved. By adjusting the weighting factor, the design scenario can be classified into categories ranging from a cheap infrastructure design to an expensive design; and the decision of an optimal solution can be simply finalized by considering the Pareto curve. To simplify the optimization process, the effect of voltage is excluded. Therefore, the performance of the design operation may be degraded by the variation of the pantograph voltage. From the comparison, it is seen that the variation of voltage entails small deviations in the design scheduling and degrades the energy-saving performance, especially in the off-peak hour condition. Even though such deviations are allowed in the operation of some running sections without any modification of the designed condition, the energy-saving performance is still improved.

本誌: IEEJ Journal of Industry Applications Vol.8 No.6 （2019）

本誌掲載ページ: 915-925 p

原稿種別: 論文／英語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejjia/8/6/8_915/_article/-char/ja/