Abstract:
As the effort to reduce the carbon footprint of transportation becomes more intensified,
significantly more attentions are turning towards electrified railway systems. Electrified railway
systems have been more efficient in the utilization of the energy re sources and inherently less carbon
oriented in the way of driving the outcome from the energy input. Long before the road centric mode
of transportation such as trucks and cars turned to electrification, the railway system began turning
to electricity as t he prime source of energy. Consequently, certain countries already electrified more
than 70% of their railway systems . Another outstanding characteristic of the electrified railway
system is its closer integration to the energy system with the control and monitoring system. The
interactions due to this tight integration require detail ed studies with precise modelling and
simulation. Through the modelling and simulation, the system designers, as well as the operators,
can get a more precise understanding regarding the planning and operation of an electrified railway
system. In this paper, a digital twin of an electrified railway system is introduced. The proposed
digital twin includes a feeder transformer, its detail ed protection system models, and a train model
as a moving load in the supply system. The impact of such characteristics upon the protection system
are investigated in detail and the results are presented.
In Kwon Park, Sachintha Kariyawasam, Dean Ouellette, Yi Zhang, Joorak Kim, and Gyu-Jung Cho, "A Study on a Digital Twin of Electrified Railway Systems," in APAP 2021, 2021.
KEYWORDS: Electrified Railway System; Modelling; Simulation