Virtual Synchronous Generator Control of VSC-HVDC System Based on MMC of Hybrid Topology

Figure 6

DC short-circuit fault simulation waveform. (a) Waveforms of DC voltage and current. (b) Reference and feedback of inner dq-axis current loop. (c) Sum of arm capacitor voltages of converter lower arms. (d) Lower arm current of converter.

(a)

(b)

(c)

(d)