Electric vehicle charging station using a neutral point clamped converter with bipolar DC bus and voltage balancing circuit

Conference paper (2013)

Authors

Sebastian Rivera Toronto Metropolitan University
Bin Wu Toronto Metropolitan University
Jiacheng Wang Toronto Metropolitan University
Hussain Athab Toronto Metropolitan University
Samir Kouro Universidad Técnica Federico Santa María
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Published Date

2013

Language

English

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Abstract

The automotive industry is making important changes towards the electrified transportation. Several Electric Vehicles (EVs) and Plug-in Hybrid EVs are currently on the market offering a clean and environment friendly alternative to conventional vehicles. However, limited mileage capacity and long refueling times have lead to a lukewarm reception from the consumers. In order to reduce the charging time fast charging architectures are being developed, usually as off-board solutions located in public installations. This paper presents a centralized charging station architecture, using a bipolar dc grid to power off-board chargers and integrate of DGs and storage systems. The central converter topology is an NPC and a novel balancing technique is implemented to extend the operating range of the power converter.