wherein where cov(t) is a weight coefficient that depends on: said DC-link capacitor voltage Vdc(t), a nominal DC-link voltage (Vdcnom), and a predetermined high-voltage limit (Vhigh). Preferably, said active voltage limiter unit is further configured to determine a negative fraction of correction to be applied according to an empirical saturated-cubic equation: Preferably, said active voltage limiter unit is further configured to determine unconstrained axis-wise corrections as a fraction of the maximum correction by the following equation: Preferably, said active voltage limiter unit is further configured to determine constrained axis-wise current corrections by applying the following saturation and correction equations