A unified multi-functional on-board EV charger for power-quality control in household networks

Seyedfoad Taghizadeh, M.J. Hossain, Junwei Lu and Wayne Water

Applied Energy, 2018, vol. 215, issue C, 186-201

Abstract: This paper presents a feasible and reliable unified control system for a single-phase 4.5 kVA on-board multifunctional electric-vehicle (EV) charger that is connected to a low-voltage household network. Based on the proposed control system, the EV charger can operate as both a single-phase four-quadrant static synchronous compensator (STATCOM) and an active power filter (APF). The proposed EV charger can simultaneously perform four functions: charging/discharging the electric-vehicle’s (EV’s) battery; reactive power compensation; voltage regulation; and, harmonic reduction, which are important concerns of the existing power grid. Accordingly, it can enhance the building s voltage profile, power quality, and reliability, which makes the proposed method a complete solution for low-voltage household networks. The stress on the EV battery is also reduced, which can enhance its lifetime. A stability analysis of the proposed unified control system is provided in this paper. The simulation results, with two loads, static and dynamic, confirm the efficacy and reliability of the proposed system. The performance of the designed unified control system is also validated by experimental results.

Keywords: Vehicle-to-grid (V2G); Grid-to-vehicle (G2V); Four-quadrant STATCOM; Active power filter (APF); Power quality; Low-voltage household networks (search for similar items in EconPapers)
Date: 2018
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Citations: View citations in EconPapers (9)

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DOI: 10.1016/j.apenergy.2018.02.006

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