Improved Management of Battery to Battery Energy Transfer System Between two Electric Vehicles

Managing large battery systems has become an enormous technological challenge with the proliferation of electric vehicles and storage based power systems. Without reasonably accurate estimation of the state of charge of the battery system it is impossible to plan for the charging schedule. Energy transfer from battery to battery has become a major area of interest for electric vehicles or vessels that are in need of energy to complete their course. Apart from hardware to tackle such exchange of power, successful implementation needs strong software based estimation and planning in real time. The present work considers the design of Kalman filter based state of charge estimator as part of an effective solution to the problem of energy transfer between two electric vehicle batteries. It also provides the outlook of an overall scheme for the charge transfer using dual active bridge converter at both ends.