Highly Integrated Electric Drive based-on Smart DC Batteries Topology and Control
Dynamically reconfigurable batteries, particularly in electromobility and energy storage applications, are the product of integrating batteries with electronics that enable the dynamic and smart reconfiguration. This enables the operator to adjust the series, parallel, and bypass connections among the batteries depending on the output conditions and goals. Most studies focus on feeding a single output while neglecting additional voltage levels, also known as auxiliaries, to increase the utilization of the available degrees of freedom. In this study, we propose an electric drive topology based on smart DC battery that minimizes the number of the switches and large passive components by integrating the auxiliary and the high-power output. The main load (non-isolated, semi-controlled) can be the DC-link of an inverter, while the auxiliary load (galvanically isolated, fully controlled) supplying the controllers and monitoring subsystems.
