Journal article ยท Ahead of Print article
Raising the potential of a local market for the reactive power provision by electric vehicles in distribution grids
Department of Electrical Engineering, Technical University of Denmark1
Center for Electric Power and Energy, Centers, Technical University of Denmark2
Energy Analytics and Markets, Center for Electric Power and Energy, Centers, Technical University of Denmark3
Distributed Energy Resources, Center for Electric Power and Energy, Centers, Technical University of Denmark4
The promotion of electric vehicles (EVs), triggered by environmental concerns, can also increase the flexibility of power systems through ancillary services, such as frequency regulation among others. Nevertheless, EV penetration has increased the concern regarding voltage drops in distribution grids.
This concern has motivated researchers to examine EV reactive power provision to mitigate such problems. This work proposes a local market perspective to promote EV reactive power provision, enabling distribution system operators (DSOs) to control the voltage level using cost-effective solutions. We propose the extension of a centralized control framework that schedules EV frequency regulation to optimize the reactive power provided by the same EVs.
Additionally, we investigate extra power losses in chargers while EVs provide reactive power, and we consider the associated cost in the economic evaluations. A test-case with the IEEE 33-node distribution grid is used to assess the market potential of EV reactive power provision. This new service extends EV penetration in a cost-efficient way without causing voltage problems.
The simulation concludes that it is economically feasible to use EVs for reactive local provision with efficient chargers. These outcomes sustain the potential of promoting such new EV services through a proper market in distribution grids.
Language: | English |
---|---|
Publisher: | IET |
Year: | 2019 |
Pages: | 2446-2454 |
ISSN: | 17518695 and 17518687 |
Types: | Journal article and Ahead of Print article |
DOI: | 10.1049/iet-gtd.2018.5947 |
ORCIDs: | Sousa, Tiago , Hashemi Toghroljerdi, Seyedmostafa and Andersen, Peter Bach |
EV penetration EV reactive power provision EV services IEEE 33-node distribution grid battery chargers battery powered vehicles distribution grids electric vehicles extra power losses frequency control optimisation power distribution control power systems reactive local provision reactive power schedules EV frequency regulation