“…Other characteristics of this converter include its very low THD in input line current, small passive filtering requirements, and explicit creation of a bipolar DC-bus, which has been investigated by [43] to implement a charging station, allowing DC-DC converters to connect to half of the DC-bus voltage [34]. The requirement for capacitor voltage balancing algorithms [44,45] is one of the most difficult challenges associated with the use of this converter. If the voltage drops across the capacitors are left unbalanced, it may result in poor output voltage quality, affecting control performance or even causing semiconductor devices to fail [46].…”