Abstract: An exemplary aspect of this disclosure relates to a charging system comprising a first battery; a photovoltaic array; a battery management system configured to cause a photovoltaic switchgear to open and close, wherein the high voltage switchgear is configured to receive power from the first battery at the same time the first battery receives power from the photovoltaic array through the photovoltaic switchgear; a junction including the photovoltaic switchgear; and a high voltage switchgear, wherein the first battery is configured to receive power from the photovoltaic array when the photovoltaic switchgear is closed.

Abstract: An apparatus and method for converting DC voltage across positive and negative DC buses to three phase AC voltages on first, second and third AC output lines, the method comprising the steps of providing first and second three phase inverters that include a first subset of inverter switches and a second subset of inverter switches, respectively, linking a first choke in series with the first three phase inverter between the positive and negative DC buses and the AC output lines, linking a second choke in series with the second three phase inverter between the positive and negative DC buses and the AC output lines and synchronously controlling the first and second inverter switch subsets so that switching of first and second inverter switch subsets is substantially synchronized among the three phases.