Title
Increasing the Integration Potential of EV Chargers in DC Trolleygrids: A Bilateral Substation-Voltage Tuning Approach
Author
Diab, I. (TU Delft DC systems, Energy conversion & Storage)
Chandra Mouli, G.R. (TU Delft DC systems, Energy conversion & Storage) 
Bauer, P. (TU Delft DC systems, Energy conversion & Storage)
Date
2022
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%).
To reference this document use:
http://resolver.tudelft.nl/uuid:b039f5c8-9397-4357-adcc-1fd2b7862401
DOI
https://doi.org/10.1109/SPEEDAM53979.2022.9841989
Publisher
IEEE
Embargo date
2023-02-06
ISBN
978-1-6654-8459-6
Source
2022 International Symposium on Power Electronics, Electrical Drives, Automation and Motion, SPEEDAM 2022
Event
2022 International Symposium on Power Electronics, Electrical Drives, Automation and Motion, SPEEDAM 2022, 2022-06-22 → 2022-06-24, Sorrento, Italy
Series
2022 International Symposium on Power Electronics, Electrical Drives, Automation and Motion, SPEEDAM 2022
Bibliographical note
Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.
Part of collection
Institutional Repository
Document type
conference paper
Rights
© 2022 I. Diab, G.R. Chandra Mouli, P. Bauer