Integration of IEC 61850 into a Vehicle-to-Grid system with networked electric vehicles

A Networked Electric Vehicle (NEV) that can convert energy in the vehicle back to the grid when it has excess has the similar electrical characteristics to stationary energy storage devices. A Vehicle-to-Grid (V2G) system, which is composed of these NEVs, can mitigate the impact of renewable penetration, minimize the grid losses and improve the reliability of electricity supply. The goal of the paper is to propose an innovative V2G system with NEVs including mathematical modeling and practical implementation. More importantly, as one approach, the international unified standard IEC 61850 has been integrated into the system, with the aim to standardize the communication network. In the paper, authors investigate the current state of art in the integration of IEC 61850 into power grid systems, introduce a mathematical modeling of NEV that can realize V2G functionality and develop an explicit integration procedure including steps of system architecture, data set design and communication between gateway and client. The results represent a successful implementation of V2G system with the integration of IEC 61850, which implement a power system test bed with providing stable power quality and unified communication network.