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Open AccessArticle

Plug-In Electric Bus Depot Charging with PV and ESS and Their Impact on LV Feeder

1
Department of Electrical and Electronic Engineering, Auckland University of Technology, Auckland 1010, New Zealand
2
Department of Electrical Engineering, Lahore University of Management Sciences, Lahore 54792, Pakistan
*
Author to whom correspondence should be addressed.
Energies 2020, 13(9), 2139; https://doi.org/10.3390/en13092139
Received: 9 March 2020 / Revised: 2 April 2020 / Accepted: 19 April 2020 / Published: 29 April 2020
Plug-in electric buses (PEBs) are a promising alternative to conventional buses to provide a sustainable, economical, and efficient mode of transportation. However, electrification of public transportation leads to a phenomenon of peak load that impacts the stability of low voltage (LV) feeders. In this context, the effective integration of an energy storage system (ESS) and photovoltaic (PV) in a bus depot charging ecosystem can lead to i) peak load reduction and ii) charging cost reduction with low carbon emission. Therefore, a limited PEB charge scheduling algorithm is proposed for: i) bus depot operator (BDO) profit maximization and ii) grid stability enhancement considering the constraints of PEB charging and grids. A mixed integer linear programming (MILP) model for BDO profit maximization has been formulated and analyzed using IBM ILOG studio with CPLEX solver. Simulation has been performed for SkyBus electric fleet using real-world data such as actual bus arrival and departure schedules under diverse traffic, number of passengers, trip duration, daily load profile, solar radiation profile, and benchmark storage price. The charging impact of PEBs was tested on one of the distribution feeders in Auckland, New Zealand. The BDO generates revenue by performing energy trading among PV, ESS, PEBs, and buildings after incorporating capital investment, operation and maintenance, and depreciation costs. View Full-Text
Keywords: plug-in electric bus; limited/unlimited charge scheduling algorithm; bus depot operator; energy storage system; low voltage feeder plug-in electric bus; limited/unlimited charge scheduling algorithm; bus depot operator; energy storage system; low voltage feeder
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MDPI and ACS Style

Arif, S.M.; Lie, T.T.; Seet, B.C.; Ahsan, S.M.; Khan, H.A. Plug-In Electric Bus Depot Charging with PV and ESS and Their Impact on LV Feeder. Energies 2020, 13, 2139.

AMA Style

Arif SM, Lie TT, Seet BC, Ahsan SM, Khan HA. Plug-In Electric Bus Depot Charging with PV and ESS and Their Impact on LV Feeder. Energies. 2020; 13(9):2139.

Chicago/Turabian Style

Arif, Syed M.; Lie, Tek T.; Seet, Boon C.; Ahsan, Syed M.; Khan, Hassan A. 2020. "Plug-In Electric Bus Depot Charging with PV and ESS and Their Impact on LV Feeder" Energies 13, no. 9: 2139.

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