Performance Assessment of Distribution Network with Electric Vehicle Penetration

With the popularization of electric vehicles, free charging behaviors of electric vehicle owners can lead to uncertainty about charging in both time and space. A time-spatial dispatching strategy for the distribution network guided by electric vehicle charging fees is proposed in this paper, which aims to solve the network congestion problem caused by the unrestrained and free charging behaviors of large numbers of electric vehicles. In this strategy, congestion severity of different lines is analyzed and the relationship between the congested lines and the charging stations is clarified. A price elastic matrix is introduced to reflect the degree of owners’ response to the charging prices. A pricing scheme for optimal real-time charging fees for multiple charging stations is designed according to the congestion severity of the lines and the charging power of the related charging stations. Charging price at different charging station at different time is different, it can influence the charging behaviors of vehicle owners. The simulation results confirmed that the proposed congestion dispatching strategy considers the earnings of the operators, charging cost to the owners and the satisfaction of the owners. Moreover, the strategy can influence owners to make judicious charging plans that help to solve congestion problems in the network and improve the safety and economy of the power grid.

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Traffic-based modeling of electric vehicle charging load and its impact on the distribution network and railway station parking lots

3rd International Symposium on Environmental Friendly Energies and Applications (EFEA) ◽

10.1109/efea.2014.7059977 ◽

2014 ◽

Cited By ~ 1

Author(s):

Siyamak Sarabi ◽

Arnaud Davigny ◽

Vincent Courtecuisse ◽

Yann Riffonneau ◽

Benoit Robyns

Keyword(s):

Electric Vehicle ◽

Distribution Network ◽

Railway Station ◽

Parking Lots ◽

Electric Vehicle Charging ◽

Vehicle Charging

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Sustainable Electric Vehicle Transportation

Sustainability ◽

10.3390/su132212379 ◽

2021 ◽

Vol 13 (22) ◽

pp. 12379

Author(s):

Raymond Kene ◽

Thomas Olwal ◽

Barend J. van Wyk

Keyword(s):

Electric Vehicle ◽

Energy Demand ◽

Large Scale ◽

Common Knowledge ◽

Distribution Network ◽

Electricity Grid ◽

Current State ◽

The World ◽

The Impact ◽

Ev Charging

The future direction of electric vehicle (EV) transportation in relation to the energy demand for charging EVs needs a more sustainable roadmap, compared to the current reliance on the centralised electricity grid system. It is common knowledge that the current state of electricity grids in the biggest economies of the world today suffer a perennial problem of power losses; and were not designed for the uptake and integration of the growing number of large-scale EV charging power demands from the grids. To promote sustainable EV transportation, this study aims to review the current state of research and development around this field. This study is significant to the effect that it accomplishes four major objectives. (1) First, the implication of large-scale EV integration to the electricity grid is assessed by looking at the impact on the distribution network. (2) Secondly, it provides energy management strategies for optimizing plug-in EVs load demand on the electricity distribution network. (3) It provides a clear direction and an overview on sustainable EV charging infrastructure, which is highlighted as one of the key factors that enables the promotion and sustainability of the EV market and transportation sector, re-engineered to support the United Nations Climate Change Agenda. Finally, a conclusion is made with some policy recommendations provided for the promotion of the electric vehicle market and widespread adoption in any economy of the world.

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