An Observer-Based Finite Control Set Model Predictive Control for Three-Phase Power Converters

Figure 4

The negative impacts caused by filtering-resulted time delay on FCS-MPC.

(a) Time delay depends on the cut-off frequency (1-order low-pass filter)

(b) The input current waveforms (3.0 A/div) with cut-off frequency 1 kHz (upper figure) and 20 kHz (lower figure), respectively