Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/22551
Title: Real-time scheduling of electric vehicles charging in low-voltage residential distribution systems to minimise power losses and improve voltage profile
Authors: Luo, X
Chan, KW 
Issue Date: 2014
Publisher: Institution of Engineering and Technology
Source: IET generation, transmission & distribution, 2014, v. 8, no. 3, p. 516-529 How to cite?
Journal: IET generation, transmission & distribution 
Abstract: Unscheduled charging of plenty of electric vehicles (EVs) might exert an adverse effect on the existing power grid, especially when the charging coincides with daily peak load at distribution level. In this study, a scalable real-time scheduling scheme for EV charging in low-voltage residential distribution system is proposed. Since most often, voltage drop would become a binding constraint when a distribution feeder is subject to a high EV penetration level, a scheduling method is first developed to increase the voltage safety margin. Then, a novel factor is derived to allow the scheduling to shift from voltagesafety-oriented to loss-minimisation-oriented, or vice versa, on demand of the EV penetration level. A number of charging scenarios were simulated to evaluate the proposed scheduling scheme. Simulation results verified that the proposed scheduling scheme is fast and efficient with circuit losses close to optimal at a low EV penetration level and voltage drops maintained within the tolerable limit at a high EV penetration level. The high scalability and effectiveness of the proposed scheme has made it suitable for coordinating large number of EV charging activities in real-time.
URI: http://hdl.handle.net/10397/22551
ISSN: 1751-8687
EISSN: 1751-8695
DOI: 10.1049/iet-gtd.2013.0256
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