The maximum power demand (MPD) fee is a major component of the electricity costs of high-speed railways (HSRs), which is closely related to the train timetable. Therefore, this article proposes a timetable optimization-based coordinated MPD-shaving method for multiple adjacent traction substations (TSSs) to achieve the economic operation of HSRs. First, the traction load characteristics of high-speed trains (HSTs) and the dependence of the MPDs of TSSs on train timetables are analyzed. On this basis, a field measurement data-based-traction load model of TSSs is proposed, and a power correlation model of adjacent TSSs is constructed. Then, considering the adjustability of each HST in a preliminary timetable, a coordinated MPD-shaving model of multiple TSSs is established to optimize train departure intervals with the aims of achieving the economic operation of HSRs while preserving the original timetable structure. Three objectives, including MPD shaving, energy consumption reduction, and timetable structure maintenance, are jointed through a cost function by introducing a penalty cost for timetable adjustments. Finally, based on three adjacent TSSs for a real HSR line in China, four cases are designed to verify the feasibility and effectiveness of the proposed method.
Coordinated Maximum Power Demand Shaving of Multitraction Substations With Train Timetable Optimization
IEEE Transactions on Transportation Electrification ; 11 , 1 ; 1705-1714
01.02.2025
3519402 byte
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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