Electric Charging Station in Hong Kong

Ng, T.W.; Liu, J.; Cheng, K.W.E.; Chan, K.W.; Lo, W.C.

doi:10.3390/wevj4040943

Volume 4, Issue 4

Article Versions

Related Info

More by Authors

Export Article

World Electric Vehicle Journal is published by MDPI from Volume 9 issue 1 (2018). Articles in this Issue were published by The World Electric Vehicle Association (WEVA) and its member the European Association for e-Mobility (AVERE), the Electric Drive Transportation Association (EDTA), and the Electric Vehicle Association of Asia Pacific (EVAAP). They are hosted by MDPI on mdpi.com as a courtesy and upon agreement with AVERE.

Open AccessArticle

Electric Charging Station in Hong Kong

T.W. Ng^1,2,*, J. Liu^1,2, K.W.E. Cheng^1,2, K.W. Chan¹ and W.C. Lo¹

Department of Electric Engineering, The Hong Kong Polytechnic University, Hong Kong

Power Electronics Research Centre, The Hong Kong Polytechnic University, Hom Hung, Kowloon, Hong Kong

Author to whom correspondence should be addressed.

World Electr. Veh. J. 2010, 4(4), 943-947; https://doi.org/10.3390/wevj4040943

Published: 31 December 2010

PDF [348 KB, uploaded 18 May 2018]

Abstract

In this paper, an Electric Vehicle (EV) charging system, which is jointly designed by the research center and local power-distribution company, would be presented. The system consists of a number of Charging Points (CPs), a control unit, a user-interface and an electronic payment mechanism. The CPs are gridconnected and allow power electronics connections for Battery Charging. Power supplies are controlled and monitored simultaneously by the control unit. Meanwhile, the charging system provides a userinterface that allows customers to select the desired charging time and read the charging status. The CPs are connected to the charging system via Ethernet thus the number of CPs could easily be extended once the power distribution line is established and CPs is connected to the grid. Electrical parameters, such as line voltage, current, power factor, etc. could be also acquired via Ethernet. The prototype was later developed into a commercial product with an electronic payment mechanism implemented and has been opened to public use for months.

Keywords: EV charging station; electronic tariff payment; time-based charging; single-phase charging

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).