Abstract
We compare stability regions for different power flow models in the process of charging electric vehicles (EVs) by considering their random arrivals, their stochastic demand for energy at charging stations, and the characteristics of the electricity distribution network. We assume the distribution network is a line with charging stations located on it. We consider the Distflow and the Linearized Distflow models, and we assume that EVs have an exponential charging requirement, that voltage drops on the distribution network stay under control, and that the number of charging stations N goes to infinity. We investigate the stability of utility-optimizing power allocations in large distribution networks for both power flow models by controlling the arrival rate of EVs to charging stations. For both power flow models, we show that, to obtain stability, the maximum feasible arrival rate, i.e., stability region of vehicles, is decaying as 1/N2, and the difference between those arrival rates is up to constants, which we compare explicitly.
Original language | English |
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Pages (from-to) | 187-239 |
Number of pages | 53 |
Journal | Queueing Systems |
Volume | 103 |
Issue number | 3-4 |
Early online date | 15 Mar 2023 |
DOIs | |
Publication status | Published - Apr 2023 |
Keywords
- Bandwidth-sharing networks
- Electrical vehicle charging
- Power flow models
- Stability regions
ASJC Scopus subject areas
- Statistics and Probability
- Computer Science Applications
- Management Science and Operations Research
- Computational Theory and Mathematics