Research on characteristics of electric vehicle charging load and distribution network supportability

As the electric vehicle(EV)charging is playing an important role in distribution network, it has attracted more and more attention. In order to clarify the relationship between the operation mode of EVs, peak charging load and peak power load of grid, this paper defines two key parameters: coincidence factor and mutual coincidence factor. The variation tendencies of these two parameters under different EVs scale and charging rate are also analyzed. Based on the characteristics of EV charging load and the power load of distribution network in residential area, an evaluation method for distribution network supportability is proposed. Finally effectiveness of the evaluation method are verified by distribution network in residential area. The results show that by choosing the capacity of transformer properly, the ability of the distribution network for the integration of EV can be greatly improved.

[1]  Luo,et al.  Impacts and Utilization of Electric Vehicles Integration Into Power Systems , 2012 .

[2]  Zhang Xiangwe.  Research on assessment methods of distribution network's ability of admitting electric vehicles , 2015 .

[3]  Juha Kiviluoma,et al.  Methodology for modelling plug-in electric vehicles in the power system and cost estimates for a sys , 2011 .

[4]  Chao,et al.  Survey of Electric Vehicle Charging Load and Dispatch Control Strategies , 2013 .

[5]  P Frías,et al.  Assessment of the Impact of Plug-in Electric Vehicles on Distribution Networks , 2011, IEEE Transactions on Power Systems.

[6]  Bai Xiaomin.  Impacts of Electric Vehicles Charging on Distribution Grid , 2011 .

[7]  Min Yong,et al.  Practical Calculation Model of Three-phase Short-circuit Current for Doubly-fed Induction Generator , 2011 .

[8]  P. T. Krein,et al.  Review of Battery Charger Topologies, Charging Power Levels, and Infrastructure for Plug-In Electric and Hybrid Vehicles , 2013, IEEE Transactions on Power Electronics.

[9]  Xu Guo-jun.  Study on the impact of electric vehicles charging load integrated into distribution network based on analytic hierarchy process and probabilistic simulation , 2012 .

[10]  Giorgio Rizzoni,et al.  Study of PEV Charging on Residential Distribution Transformer Life , 2012, IEEE Transactions on Smart Grid.

[11]  G. A. Putrus,et al.  Impact of electric vehicles on power distribution networks , 2009, 2009 IEEE Vehicle Power and Propulsion Conference.

[12]  A. Rowe,et al.  Analyzing the impacts of plug-in electric vehicles on distribution networks in British Columbia , 2009, 2009 IEEE Electrical Power & Energy Conference (EPEC).