METHOD FOR ACTUATING A MULTI-PHASE MACHINE

摘要

The invention relates to a method for actuating a multi-phase machine that is connected to a battery, said machine having a DC link that is provided with a DC link capacitor, phase windings, and for each phase a high side switch and a low side switch. A control unit controls the switches associated with the individual phases, in such a way that sinusoidal phase currents are pre-defined, that at least one phase current is activated at any point in each actuation cycle and that a fixed, pulsed actuation model exists for each actuation cycle, in which model the actuation widths of the actuation signals associated with the phases are constant. The actuation pulses that are associated with the individual phases are pre-defined in such a way that the DC link current that occurs is minimised.