Integration of electric vehicles within microgrid

This paper presents an analytical approach to integrate electric vehicles (EVs) into the microgrid in order to enhance its voltage stability. Analytical characterization equations linking the microgrid and the EVs are first developed. Then, based on a practical distribution network and realistic load conditions, case studies are undertaken to show the positive impacts of EV integration. Matpower program is used to formulate and perform the power flow analysis. Eigenvalue, eigenvector and participation factor analysis are used to monitor voltage stability and identify the weakest bus on the system. The results show quantitatively the extent to which the addition of electric vehicles can enhance voltage level and voltage stability of the system under study.