Data Transfer in Electric Vehicle Charging System

Andreja Žitnik (2012) Data Transfer in Electric Vehicle Charging System. EngD thesis.

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Abstract

Electric vehicles are becoming more and more accessible to the general public. Practically all car manufacturers have decided to present electric car models in recent years. Spain and Great Britain have decided to offer subsidies for electric cars for up to 20 percent of car price. Slovenia also decided to offer up to 5,000 EUR of subsidy. All this brought about a need to develop a network of charging stations so that electric car owners could charge their vehicles while on the road. This diploma presents development of efficient and safe communication components for a system for charging electric vehicles (SPEV). The system connects smart charging stations with centers for management of charging infrastructure (CVPI) and with national database of charging system users. This diploma presents functional specifications of the system, applications that comprise it and communication pathways among them. It also includes a chapter on web services, an overview of technologies used, challenges and solutions that were achieved in order to enable communication among different applications and devices. In the end we include some ideas on possible upgrades in the future. Just as the devices that comprise SPEV are heterogeneous, so are the environments in which the applications were developed. The applications for charging stations were developed in Microsoft Visual Studio 2008 and programing language C#, web services were developed in Microsoft Visual Studio 2010, and both portals were created in PHP 5. We chose Microsoft SQL Server 2008 as our database provider.

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