A traction system comprising: a DC bus; an energy storage device coupled to the DC bus via a first voltage converter assembly; a first voltage converter comprising a first plurality of phase legs (84,86,88) coupled to the DC bus; a second voltage converter comprising a second plurality of phase legs (102, 104) coupled to the DC bus; a first electromechanical device coupled to the first voltage converter, the first electromechanical device comprising a plurality of windings coupled to an output of respective phase legs of the first plurality of phase legs (84, 86, 88) of the first voltage converter; a second electromechanical device comprising a plurality of windings coupled to an output of respective phase legs of the second plurality of phase legs (102, 104) of the second voltage converter; a first switch coupled between the first electromechanical device and the energy storage device; a second switch coupled between the second electromechanical device and the energy storage device; and a controller configured to control the first and second switches (112,116) and the first and second voltage converters (70, 92); in which the controller is configured to: control operation of the first voltage converter assembly and respective phase legs of the plurality of phase legs (84, 86, 88, 102, 104) so that the respective phase legs in cooperation with respective windings of the windings (91, 107) of the first and second electromechanical device (90,106) form a plurality of DC/DC converters which enable charging of the energy storage device from an external charging source via the DC bus and the plurality of DC/DC converters; and control the first switch and the second switch and the voltage converter assemblies such that a phase leg of the first voltage converter and a winding of the first electromechanical device form a first DC/DC converter, and a phase leg of the second voltage converter and a winding of the second electromechanical device form a second DC/DC converter. a DC bus; an energy storage device coupled to the DC bus via a first voltage converter assembly; a first voltage converter comprising a first plurality of phase legs (84,86,88) coupled to the DC bus; a second voltage converter comprising a second plurality of phase legs (102, 104) coupled to the DC bus; a first electromechanical device coupled to the first voltage converter, the first electromechanical device comprising a plurality of windings coupled to an output of respective phase legs of the first plurality of phase legs (84, 86, 88) of the first voltage converter; a second electromechanical device comprising a plurality of windings coupled to an output of respective phase legs of the second plurality of phase legs (102, 104) of the second voltage converter; a first switch coupled between the first electromechanical device and the energy storage device; a second switch coupled between the second electromechanical device and the energy storage device; and a controller configured to control the first and second switches (112,116) and the first and second voltage converters (70, 92); in which the controller is configured to: control operation of the first voltage converter assembly and respective phase legs of the plurality of phase legs (84, 86, 88, 102, 104) so that the respective phase legs in cooperation with respective windings of the windings (91, 107) of the first and second electromechanical device (90,106) form a plurality of DC/DC converters which enable charging of the energy storage device from an external charging source via the DC bus and the plurality of DC/DC converters; and control the first switch and the second switch and the voltage converter assemblies such that a phase leg of the first voltage converter and a winding of the first electromechanical device form a first DC/DC converter, and a phase leg of the second voltage converter and a winding of the second electromechanical device form a second DC/DC converter. control operation of the first voltage converter assembly and respective phase legs of the plurality of phase legs (84, 86, 88, 102, 104) so that the respective phase legs in cooperation with respective windings of the windings (91, 107) of the first and second electromechanical device (90,106) form a plurality of DC/DC converters which enable charging of the energy storage device from an external charging source via the DC bus and the plurality of DC/DC converters; and control the first switch and the second switch and the voltage converter assemblies such that a phase leg of the first voltage converter and a winding of the first electromechanical device form a first DC/DC converter, and a phase leg of the second voltage converter and a winding of the second electromechanical device form a second DC/DC converter.