||Roaming in a Virtual Power Plant Environment
||Poulsen, Bjarne (Software Engineering, Department of Informatics and Mathematical Modeling, Technical University of Denmark, DTU, DK-2800 Kgs. Lyngby, Denmark)
||Technical University of Denmark, DTU, DK-2800 Kgs. Lyngby, Denmark
||Electric vehicles are yet to be common household items, even though they provide a unique contribution
in reducing CO2 emissions in the transportation sector. A major obstacle for this, is the
limited number of spots at which the vehicles can be recharged. The number of charging spots is
further limited by the fact that electric vehicles associated with one operator, are not compatible
with charging spots of other operators. To overcome this problem, the concept of Roaming between
operators needs to be studied, and a solution which supports a seamless roaming experience for
users, independent of the operator, should be integrated into future systems.
This thesis is performed as part of the international EDISON research project and its main contribution
is a study of the concept of roaming for electric vehicles between different operators. The
study is performed on the basis of existing research for electric vehicles, as provided by the current
operators, and results in a list of proposals and requirements for a roaming backend system,
partitioned into three tasks, identified as critical for a roaming system: Authentication, exchange of
roaming data, and exchange of billing data.
An important finding of the study, is the lack of roaming support for the current operators. The
interoperability between the hardware components of different operators is described in details and is
currently being standardized, but none of the operators have presented a complete roaming system.
Due to the lack of details from the current operators, the field proven roaming system for mobile
phone systems is also considered as a source of inspiration, and it becomes clear that many key
aspects can be reused with minor modications.
To ensure that the presented ideas are practically applicable, a prototype of the roaming system
is designed, implemented, and integrated into the existing EDISON framework. The prototype is
employed to test a number of key scenarios of roaming and the results conrm that the presented
design is useful as a basis for a complete roaming system.
||Technical University of Denmark (DTU) : Kgs. Lyngby, Denmark
Creation date: 2011-04-01
Update date: 2011-04-01