Techno-Economic Evaluation of Regulation Service from SEVs in Smart MG System

Abstract

A techno-economic evaluation of regulation service of microgrid system comprising renewable energy resources and electric vehicles has been done in this paper. EV operational strategy for MG regulation is developed by incorporating a vehicle controller which enables vehicle to grid or grid to vehicle mode operation, while plugged into the power distribution circuit. The functionality of grid integration of electric vehicle with vehicle to grid or grid to vehicle operation makes it a smart electric vehicle, suitable for operation in smart microgrid environment. The techno-economic analysis is based on simulation results obtained from a microgrid test system operated with varying power generation and frequency regulation being provided by two different microgrid resources i.e., conventional battery storage system and proposed smart electric vehicles. The cost for providing frequency regulation using battery storage system and grid integration of vehicle is calculated and compared to find microgrid optimal operation option. The comparison of two costs reveals that smart electric vehicles have considerable economic potential for microgrid regulation service and hence provide better utilization of resources for optimal operation.