Research Article

A Grid-Connected Multilevel Current Source Inverter and Its Protection for Grid-Disconnection

Figure 5

Subcircuits of the proposed multilevel CSI. (a) Subcircuit for zero current. (b) Subcircuit for positive current. (c) Subcircuit for double positive current.
575309.fig.005a
(a)
575309.fig.005b
(b)
575309.fig.005c
(c)