Increasing the Integration Potential of EV Chargers in DC Trolleygrids

A Bilateral Substation-Voltage Tuning Approach

Conference Paper (2022)
Author(s)

I. Diab (TU Delft - DC systems, Energy conversion & Storage)

Gautham Ram Mouli (TU Delft - DC systems, Energy conversion & Storage)

P. Bauera (TU Delft - DC systems, Energy conversion & Storage)

Research Group
DC systems, Energy conversion & Storage
Copyright
© 2022 I. Diab, G.R. Chandra Mouli, P. Bauer
DOI related publication
https://doi.org/10.1109/SPEEDAM53979.2022.9841989
More Info
expand_more
Publication Year
2022
Language
English
Copyright
© 2022 I. Diab, G.R. Chandra Mouli, P. Bauer
Research Group
DC systems, Energy conversion & Storage
Pages (from-to)
264-269
ISBN (electronic)
978-1-6654-8459-6
Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Abstract

Light rail networks such as trolleybus grids have the potential to become multi-functional smart grids by using the excess capacity of the grid to implement PV systems, EV chargers, and storage. This paper offers a solution to increasing the potential for integration of EV chargers in the trolleygrid, without additional infrastructure costs, by simply tuning the nominal (no-load) voltages of bilaterally connected substations. This method shifts the load share between the two substations, creating more room for the integration of other utilities in a desired zone of the bus route. A mathematical derivation is presented, followed by a verifying case study using detailed and verified bus and trolleygrid simulation models for the city of Arnhem, the Netherlands. It is shown that by setting a substation nominal voltage from +10V compared to its bilateral substation to -10V, the substation can take, on average, as much as 7.5 percentage points less of the load share (from 45.9% to 38.4%) and see as much as 5 percentage points more of complete zero-load time (84.3% to 89.2%).

Files

Increasing_the_Integration_Pot... (pdf)
(pdf | 0.954 Mb)
- Embargo expired in 06-02-2023
License info not available