Smart Grid - ABB COM600 Product Manual

ABB
Grid Automation Controller
COM600
Product version: 4.0

15. Smart Grid

COM600 can be ordered with a fault detec-
tion, fault isolation and load restoration
(FDIR) function suitable for radial distri-
bution networks. The FDIR function gath-
ers data from protection and control IEDs
installed in the radial distribution networks
and substations and automatically runs
a fault detection, fault isolation and load
restoration (FDIR) algorithm using the Logic
Processor of COM600. The FDIR function
continuously updates the network status
by receiving switch status and load signals
from the IEDs.
Recloser
GridShield
COM600
RER620 RER620 RER620
REF615
RER620
REF615
Recloser
GridShield
(NC = normally closed, NO = normally open)
Fig. 11 Fault detection, fault isolation and load restoration in radial distribution networks
When a fault occurs in the network, the FDIR
function locates the fault based on switch
open and trip information received from the
IED of the affected feeder. Further, the FDIR
analyzes the network and if the fault is found,
the FDIR function isolates the fault from the
network. When the fault is isolated the FDRIR
function tries to restore supply to the healthy
part of the network without overloading the
switches or power sources. After the fault has
been cleared and the return to normal com-
mand has been given the FDIR function sends
commands to the IEDs to restore the network
to the normal pre-fault condition.
Recloser
GridShield
Load
(NC)
RER620
Communication
RER620
(NC)
Load
Recloser
GridShield
Pole mounted switch
disconnector
Load
(NC) (NC)
RER620
RER620
RER620
(NC) (NC)
Load
Pole mounted switch
disconnector
1MRS756764 D
Load
(NO)
Recloser
GridShield
Load
13