Metro traction power measurements sizing a hybrid energy storage system utilizing trains regenerative braking

verfasst von

G. Leoutsakos, A. Deloukas, K. Sarris, I. Apostolopoulos, C. Mamaloukakis, D. Kyriazidis, A. Bensmann, R. Hanke-Rauschenbach

Abstract

The paper describes the measuring systems and methodology for acquiring traction power measurements on the on-board traction systems of two metro trains and three 750 V DC rectifier substations in the Athens Metro Line 2. Being part of a wider investigation to develop a Hybrid Energy Storage System (HESS), the purpose of the present measurements is to provide traction systems experimental and operational data that would assist in the understanding of the dynamic characteristics of train braking regeneration and quantify the available energy that could be stored in a super-capacitors/batteries hybrid storage system for further use, which would otherwise be wasted and consumed as heat in stations and tunnels through the trains' braking resistors. In turn the stored energy could power upon demand selected stationary electrical loads in Metro stations of a non-safety critical character (such as lighting, ventilation, pumps, etc.) leading to very significant energy savings and to a corresponding reduction of greenhouse gases. Preliminary results confirm the feasibility of the energy saving concept indicating a significant potential for the hybrid energy storage devices and subsequent energy re-use of 4000–6000 kWh/day per rectifier substation of otherwise unused train braking energy, with a typical Metro station stationary loads consumption of 2000 kWh/day.

Organisationseinheit(en)

Fachgebiet Elektrische Energiespeichersysteme

Externe Organisation(en)

Attiko Metro S.A.
Urban Rail Transport S.A. (STASY)

Typ

Artikel

Journal

Journal of Energy Storage

Band

57

Publikationsdatum

01.2023

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Erneuerbare Energien, Nachhaltigkeit und Umwelt, Energieanlagenbau und Kraftwerkstechnik, Elektrotechnik und Elektronik

Ziele für nachhaltige Entwicklung

SDG 7 – Erschwingliche und saubere Energie

Elektronische Version(en)

https://doi.org/10.1016/j.est.2022.106115 (Zugang: Geschlossen)