Implementing Vehicle-to-Grid (V2G) Technology With IEC 61850-7-420

Electric Vehicles (EVs) have become very popular due to climate change concerns and carbon emission reduction schemes. Accordingly, in recent years the awareness of people about EVs has increased significantly. In addition to the well-known advantages such as cleaner environment, less oil-dependency, cheaper fuel, more silent operation etc., through smartgrids, EVs offer a unique benefit called vehicle to grid (V2G) technology. In order to define the role of EVs as distributed storage devices, simulation works undertaken in Paladin Designbase 4.0 are presented in this paper. It is shown that through V2G, EVs can support better operation of smartgrids in terms of reliability and storage. In order to achieve these, the components of smartgrids shall communicate and share information via communication lines. Having a universal communication standard is vital for implementing the plug-and-play concept in smartgrids. IEC 61850, the substation automation standard, could be used for this purpose. However, it is insufficient and must be expanded to cover missing links. In this paper, authors propose an extension to the IEC 61850-7-420 standard by defining the information model for controlling the charging and discharging of EVs.