Research on Charge and Discharge Strategy for Centralized EVs Charging Stations

Abstract:

High penetration of electric vehicles has brought huge impact on the safe and stable operation of power grid. How to effectively improve the comprehensive utilization rate of electric vehicle charging and discharging has become the most important problem for the grid operation. In this paper, we establish the centralized station model which takes the minimal real power loss as its objective and bring variance optimization function. Using IEEE 30-bus system as simulation system, this paper uses genetic algorithm to find the best solution of the above model. The result shows that reasonable arrangement of charge and discharge plans not only smoothes the load curve, but reduces real power loss.

• Periodical: Advanced Materials Research (Volumes 1008-1009)
• Pages: 376-380
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1008-1009.376
• Online since: August 2014
• Authors: Hong Hui Chen, Ji Chun Liu*, Yan Zhao, Jun Yong Liu, Hao Tian, Xiao Li Zheng, Xiang Yang An, Chen He
• Keywords: Centralized Charging Stations, Charging, Discharging, Dispatch Strategy, Electric Vehicle (EV), Genetic Algorithm (GA)

References

[1] Kristien Clement-Nyns，Edwin Haesen，Johan Driesen. The impact of charging plug-in hybrid electric vehicles on a residential distribution grid[J]. IEEE Trans on Power System，2010，25(1): 371-380.

DOI: 10.1109/tpwrs.2009.2036481

[2] China Electric Power Research Institute. Control method and system about electric vehicle charging orderly: China，CN102055217A[P]. 2011-05-11.

[3] Tian Wenqi, HE Jinghan, JIANG Jiuchun, et al. Research on dispatching strategy for coordinated charging of electric vehicle battery swapping ststion[J]. Power System Protection and Control，2012, 40（21）: 114-119.

[4] ZHAN Kaiqiao, SONG Yonghua, HU Chunze, et al. Coordination of electric vehicle charging to minimize active power losses[J]. Proceeding of the CSEE，2012，32（31）: 11-18.

[5] KEMPTONW，TOMIC J. Vehicle-to-grid power fundamental: calculating capacity and net revenue[J]. Journal of Power Sources，2005，14(1): 268-279.

DOI: 10.1016/j.jpowsour.2004.12.025

[6] ZENG Zheng, ZHAO Rongxiang, YANG Huan，et al. Responsive schemes to high penetration of electric vehicles and optimal planning of battery swap stations[J]. Electric Power Automation Equipment, 2012, 32（9）: 7-13.

[7] MEYERS M K, SCHENIDER K, PRATT R. Impacts assessment of plug-in hybrid vehicles on electric utilities and regional US power grids: Part 1 technical analysis [R]. Richland , WA, USA: Pacific Northwest National Laboratory, (2007).