The system 5 further comprising a control module that controls the current supplied to {HEAD ~ the grid} to be during {TAIL ~ an initial period} of a PF regeneration cycle 
The system 5 further comprising a control module that controls the current supplied to { HEAD ~ the grid } to be during { TAIL ~ an initial period } of a PF regeneration cycle
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH