ELECTRICAL POWER SYSTEM

The disclosure relates to an electrical power system for connecting an electrical machine to first and second DC networks operating at different voltages. Example embodiments include an electrical power system (500) comprising: an electrical machine (502) having first and second pluralities of windings (503a, 503b); a first AC:DC power electronics converter (501a) connected to the first plurality of windings (503a); a second AC:DC power electronics converter (501b) connected to the second plurality of windings (503b); a switching controller (504) configured to provide switching signals to the first and second AC:DC power electronics converters (501a, 501b) to provide a first DC supply (505a) at a DC side of the first AC:DC power electronics converter (501a) and a second DC supply (505b) at a DC side of the second AC:DC power electronics converter (501b), wherein the windings of the first plurality of windings (503a) are connected to the first AC:DC power electronics converter (501a) in a star configuration and the windings of the second plurality of windings (503b) are connected to the second power electronics converter (501b) in a delta configuration.