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Article

Grid Impacts of Uncoordinated Fast Charging of Electric Ferry

1
Department of Electrical and Electronic Engineering, Primeasia University, Dhaka 1213, Bangladesh
2
School of Engineering and Technology, Central Queensland University, Norman Gardens, QLD 4701, Australia
3
School of Maritime Electrical Engineering, University of Tasmania, Hobart, TAS 7005, Australia
*
Author to whom correspondence should be addressed.
Batteries 2021, 7(1), 13; https://doi.org/10.3390/batteries7010013
Received: 29 December 2020 / Revised: 19 January 2021 / Accepted: 25 January 2021 / Published: 17 February 2021
The battery energy storage system (BESS) is an indispensable part of an electric fleet (EF) which needs to be charged by electricity from local grid when the fleet is in the dockyard. The uncoordinated fast charging of BESS in Grid to Ferry (G2F) mode imposes sudden increments of load in the power grid, which is analyzed by a simulated model of grid connected marine load. The probable impact on system stability is examined by MATLAB Simulink and Power World Simulator based models. According to simulation results for IEEE 5 bus system, voltage unbalance factors are 0.01% and 200% for all buses at fundamental and third harmonics frequencies, respectively. The total harmonic distortion (THD) at fundamental frequency becomes 0.16%, 0.16%, and 0.18%, respectively, for three cases. The transient, voltage reactive power (V-Q), and voltage real power (V-P) sensitivity analysis are performed for 7 bus system with load increment contingencies. According to simulation results, the V-Q sensitivity for the assigned contingency is increased by the addition of a shunt generator to the load bus with lowest bus voltage. In case of V-P sensitivity for the selected contingency, the load buses share power among them, and the nose point is attained at maximum shift of power with high V-Q sensitivity. View Full-Text
Keywords: battery energy storage system; total harmonic distortion; V-P and V-Q sensitivity battery energy storage system; total harmonic distortion; V-P and V-Q sensitivity
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MDPI and ACS Style

Roy, R.B.; Alahakoon, S.; Arachchillage, S.J. Grid Impacts of Uncoordinated Fast Charging of Electric Ferry. Batteries 2021, 7, 13. https://doi.org/10.3390/batteries7010013

AMA Style

Roy RB, Alahakoon S, Arachchillage SJ. Grid Impacts of Uncoordinated Fast Charging of Electric Ferry. Batteries. 2021; 7(1):13. https://doi.org/10.3390/batteries7010013

Chicago/Turabian Style

Roy, Rajib B., Sanath Alahakoon, and Shantha J. Arachchillage 2021. "Grid Impacts of Uncoordinated Fast Charging of Electric Ferry" Batteries 7, no. 1: 13. https://doi.org/10.3390/batteries7010013

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