Methods and apparatus for controlling current in an electrical machine

摘要

A control system (40) for determining electric currents for an electrical machine is provided. The control system (40) includes at least one real power current demand signal functional logic block configured to modulate a real power current demand signal (114) within a first band and modulate a reactive power current demand signal (112) within a second band, wherein the first band is greater than the second band, at least one reactive power current functional logic block configured to modulate a reactive power current demand signal within a third band and modulate a real power current demand signal within a fourth band, wherein the third band is greater than the fourth band, and at least one selection mechanism configured to select at least one of the real power current demand signal functional logic block and the reactive power current demand signal functional logic block.