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An Intelligent Solar-Powered Battery-Buffered EV Charging Station with Solar Electricity Forecasting and EV Charging Load Projection Functions

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  • Zhao, Hengbing
  • Burke, Andrew

Abstract

An intelligent energy management approach for a solar-powered EV charging station with energy storage has been studied and demonstrated for a level 2 charger at the University of California-Davis West Village. The approach introduces solar PV electrical energy forecasting and EV charging demand projection to optimize the energy management of the charging station. The percentage of cloud cover is extracted from a weather forecast website for estimating the available PV electrical energy. A linear fit of the historical EV charging load from the same day of the week over the previous six weeks is employed for extracting the charging pattern of the workplace EV charging station. Both simulations and actual operation show that intelligent energy management for a charging station with a buffer battery can reduce impacts of the EV charging system on utility grids in terms of peak power demand and energy exchange, reduce grid system losses, and benefit the charging station owner through the Time-of-Use rate plans.

Suggested Citation

  • Zhao, Hengbing & Burke, Andrew, 2014. "An Intelligent Solar-Powered Battery-Buffered EV Charging Station with Solar Electricity Forecasting and EV Charging Load Projection Functions," Institute of Transportation Studies, Working Paper Series qt3q74z6m1, Institute of Transportation Studies, UC Davis.
    • Handle: RePEc:cdl:itsdav:qt3q74z6m1
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    Cited by:

    1. Tomasz Binkowski, 2021. "Fuzzy Logic Based Synchronization Method for Solar Powered High Frequency On-Board Grid," Energies, MDPI, vol. 14(24), pages 1-19, December.
    2. Ashique, Ratil H. & Salam, Zainal & Bin Abdul Aziz, Mohd Junaidi & Bhatti, Abdul Rauf, 2017. "Integrated photovoltaic-grid dc fast charging system for electric vehicle: A review of the architecture and control," Renewable and Sustainable Energy Reviews, Elsevier, vol. 69(C), pages 1243-1257.
    3. Hoarau, Quentin & Perez, Yannick, 2018. "Interactions between electric mobility and photovoltaic generation: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 94(C), pages 510-522.
    4. Tomasz Binkowski, 2020. "A Conductance-Based MPPT Method with Reduced Impact of the Voltage Ripple for One-Phase Solar Powered Vehicle or Aircraft Systems," Energies, MDPI, vol. 13(6), pages 1-17, March.
    5. Nian Liu & Minyang Cheng, 2017. "Effectiveness Evaluation for a Commercialized PV-Assisted Charging Station," Sustainability, MDPI, vol. 9(2), pages 1-15, February.
    6. Zhao, Hengbing & Burke, Andrew, 2015. "Evaluation of a PV Powered EV Charging Station and its Buffer Battery," Institute of Transportation Studies, Working Paper Series qt1zv0918t, Institute of Transportation Studies, UC Davis.
    7. Peter Haidl & Armin Buchroithner & Bernhard Schweighofer & Michael Bader & Hannes Wegleiter, 2019. "Lifetime Analysis of Energy Storage Systems for Sustainable Transportation," Sustainability, MDPI, vol. 11(23), pages 1-21, November.

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    Engineering;

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