1. Three-phase DC-Link Multilevel inverter Based DVR for Voltage Sag and Swell Mitigation
2. Three-phase Gamma AC-AC Converter-based DVR for Voltage Sag and Swell Mitigation
Lm
Sb
wa
Lk i
Lk
iL2
VS
Sa
wb
VC
iL1
Sc
iLf + iLk
Lf
iLf
Sd
Cf
+
Vo
-