Fault-Tolerant Electric Vehicle Drivetrain with Reconfigurable Battery and Multiphase Machine

This paper describes a reconfigurable battery design to drive a multiphase machine in an electric vehicle and a control of the battery balance as well as the motor. On the other hand, the dynamically reconfigurable battery uses its inherent topological potential to directly connect to the grid and charge the batteries. All the modules can actually integrate and play the role of a converter which can charge the batteries with a unity power factor and minimum additional components. The results demonstrate various operating modes including charging of the battery as well as the operation of the motor under multiple failures in modules. As expected, the speed range can be maintained, and the active modules compensate the whole system for the current loss of the inactive modules, confirming high system tolerance to module failure in the system.