ORCID

Document Type

Article

Abstract

The steady increment in electrical loads often requires expensive and disruptive upgrading of the electrical power supply infrastructure. This can be avoided by synergizing the DC railway networks with local AC grids using soft-open points to transfer the available regenerative braking energy of the trains to the nearby local grid. Besides, a battery energy storage system is integrated into the soft-open point to match the braking events with the grid load power. So that the new developed system effectively decouples both the rail and grid networks. This paper presents a practical study for such novel rail+grid energy management strategy. A 100kW smart soft open point is designed and implemented in this research to experimentally evaluate the new strategy in a lab environment using real rail data. Afterwards, the developed 100 kW prototype is accordingly validated in the real environment at Metro Madrid, Spain. Lastly, a multi-objectives optimization framework is designed for the developed management system to maximize the synergy between both networks. the multi-objectives framework aims to minimize the power losses in both networks, maximizing the profit of selling the harvested rail power to the grid and finally maximize the penetration level of the available renewables power in the grid.

Publication Date

2024-05-20

Publication Title

IEEE Transactions on Transportation Electrification

Volume

11

Issue

1

Acceptance Date

2024-05-12

Deposit Date

2024-06-21

Funding

European Union’s Horizon 2020 research and innovation programme under grant agreement No 774392.

Keywords

Battery Energy Storage System (BESS), DC Railway Network, Distribution networks, Electricity Distribution Network, Optimization, Rail transportation, Rails, Regenerative Braking Efficiency, Substations, Topology, Transportation, smart Soft Open Point (sSOP)

First Page

1298

Last Page

1312

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