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Optimal charging of large-scale electric vehicles over extended time scales

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Abstract

The multi-day spaced charging, hardly considered in current strides aiming at optimal electric vehicle charging, is the concern of this study, and thus, an extended time scale covering several days should be dealt with. This study firstly analyzed the routines and implementations of charging behaviors over the extended time scale and then quantified the range of charging start time of electric vehicles precisely, which turned out to be discontinuous, huge and complicated. Finally, the mathematical formulation of the optimal charging strategy over the extended time scale as well as its constraints was established. The proposed problem can be solved by MATLAB simulations, which was addressed in details. Moreover, numerous simulations were conducted and demonstrated that the proposed strategy can reach a better system load characteristics than the ordered charging on a daily basis with a good maneuverability.

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Acknowledgements

Funding was provided by Science and Technology Project of State Grid (Grant No. 5216A518003Y).

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Authors and Affiliations

  1. State Grid Hunan Electric Power Co., Ltd. Research Institute, Changsha, 410007, People’s Republic of China

    Hao Xu, Wenwu Liang, Yabin Yan, Bin Yu, Fan Ouyang, Weijun Zhu & Haifeng Liu

  2. Powerchina Hebei Electric Power Engineering Co., Ltd., Shijiazhuang, 050031, People’s Republic of China

    Xinjue Xia

  3. State Grid Hunan Electric Power Co., Ltd., Changsha, 410004, People’s Republic of China

    Lei Zhang

  4. Hunan Xiangdian Test and Research Institute Co., Ltd., Changsha, 410007, People’s Republic of China

    Guoqin Dong

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  1. Hao Xu
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  2. Xinjue Xia
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  3. Wenwu Liang
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  4. Lei Zhang
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  7. Bin Yu
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  8. Fan Ouyang
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  9. Weijun Zhu
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  10. Haifeng Liu
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Correspondence to Hao Xu.

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Xu, H., Xia, X., Liang, W. et al. Optimal charging of large-scale electric vehicles over extended time scales. Electr Eng 102, 461–469 (2020). https://doi.org/10.1007/s00202-019-00887-6

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  • DOI: https://doi.org/10.1007/s00202-019-00887-6

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