Journal article · Conference paper · Ahead of Print article
Impact of Large-Scale EV Integration and Fast Chargers in a Norwegian LV Grid
Norwegian University of Science and Technology1
Department of Electrical Engineering, Technical University of Denmark2
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
Norway has implemented economic incentives over several years to encourage a transition from conventional vehicles to electric vehicles (EVs), and now has the largest share of EVs per capita in the world. This study explores the effects of increasing EV penetration levels in a Norwegian distribution grid, by using real power measurements obtained from household smart meters in load flow analyses, using the MATPOWER load flow package in MATLAB.
The implications of installing a fast charger in the grid has been assessed, and an optimal location for it is proposed, aiming at minimizing both grid losses and voltage deviations. Moreover, the potential for reactive power injection to reduce the voltage deviations caused by it has been investigated.
Results show that the EV hosting capacity of the grid is good for a majority of the end-users, but that the weakest power cable would be overloaded at a 20 % EV penetration level. The network tolerated an EV penetration of 50 % with regards to the voltage levels at all end-users. Injecting reactive power at the location of an installed fast charger proved to significantly reduce the largest voltage deviations otherwise imposed by the charger.
| Language: | English |
|---|---|
| Publisher: | IET |
| Year: | 2019 |
| Pages: | 5104-08 |
| Proceedings: | 7th International Conference on Renewable Power Generation |
| ISSN: | 20513305 |
| Types: | Journal article , Conference paper and Ahead of Print article |
| DOI: | 10.1049/joe.2018.9318 |
| ORCIDs: | Zecchino, Antonio |
EV hosting capacity Power congestion Reactive power compensation SDG 7 - Affordable and Clean Energy Voltage stability
20% EV penetration level 20% ev penetration level EV penetration levels EVs Engineering (General). Civil engineering (General) Norwegian distribution grid TA1-2040 battery chargers battery powered vehicles conventional vehicles distributed power generation distribution networks economic incentives electric vehicles end-users ev hosting capacity ev penetration levels evs grid losses household smart meters installed fast charger large-scale EV integration large-scale ev integration largest share largest voltage deviations load flow load flow analyses norwegian distribution grid power distribution economics power grids power measurements reactive power injection voltage levels weakest power cable
