Fig. 19

Waveform of phase A voltage at PCC and three-phase grid-connected current under different grid frequencies. (a) The grid frequency is 49.5 Hz. (b) The grid frequency is 50.5 Hz.

Waveform of phase A voltage at PCC and three-phase grid-connected current under different grid frequencies. (a) The grid frequency is 49.5 Hz. (b) The grid frequency is 50.5 Hz.