ComAp IG-NT Reference Manual page 16

N :
OTE
Core power management is still fully functional.
Priority setpoints are not actually changed. Virtual values are used. If changing of priority setpoints is
required, they need to be changed and RHE needs to disabled and enabled again for the changes to take
place
Different sized engines (Load demand) swap (LDS)
Up to three running engines (priorities) can be swapped based on load demand (e.g. one "small" engine may
run on "small" load and swaps to another one, "big" engine that runs when load increases). This function is
availatible only in combination with absolute power management.
Activation: Pwr management:#PriorAutoSwap = LD DEMAND SWAP
Important setpoints: #PwrBandContr1, #PwrBandContr2, #PwrBandContr3, #PwrBandContr4,
#PwrBandChngDlUp, #PwrBandChngDlDn, Load reserve setpoints (depending on selected load reserve
set), Priority ctrl, Control group.
Basic settings:
Contr. Addr = 4
Pwr management:
#PriorAutoSwap = LD DEMAND SWAP
Priority ctrl = MASTER
#PwrBandContr1 = 1
#PwrBandContr2 = 2
#PwrBandContr3 = 2+3
#PwrBandChngDlUp = 10s
#PwrBandChngDlDn = 10s
Control group = COMMON
E :
XAMPLE
In this example the system is shown in previous figure. InteliMains assumes the role of master in priority
swapping and swappes priority of the engines based on user defined power bands. In power band 1, gen-set
with CAN address 1 will be running, in power band 2, gen-set with CAN address 2 will be running and in
power band 3, gen-sets with address 2 and 3 will be running.
Power bands are changed up if:
(Nominal power of all gen-sets in a particular band - Total generated power by gen-sets in power
or down if:
(Nominal power of all gen-sets in next lower band - Total generated power by gen-sets in power
Power management using control groups
When a Bus-tie separates the gen-set groups, they can operate separately (power management, load
control, mode of function etc.). When G
by InteliMains with lower CAN address only.
Inteli NT MINT, SW Version 3.0, ©ComAp –May 2013
IGS-NT-MINT-3.0 Reference Guide.PDF
InteliMains
G1
CAN
Basic settings:
Contr. Addr = 1
Pwr management:
#PriorAutoSwap = LD DEMAND SWAP
Priority ctrl = SLAVE
#PwrBandContr1 = 1
#PwrBandContr2 = 2
#PwrBandContr3 = 2+3
#PwrBandChngDlUp = 10s
#PwrBandChngDlDn = 10s
Control group = COMMON
Figure: Load Demand Swapping example
management) < Reserve for start
management) > Reserve for stop
L is active, all the gen-sets in according groups are controlled
ROUP INK
G2
Basic settings:
Contr. Addr = 2
Pwr management:
#PriorAutoSwap = LD DEMAND SWAP
Priority ctrl = SLAVE
#PwrBandContr1 = 1
#PwrBandContr2 = 2
#PwrBandContr3 = 2+3
#PwrBandChngDlUp = 10s
#PwrBandChngDlDn = 10s
Control group = COMMON
G3
Basic settings:
Contr. Addr = 3
Pwr management:
#PriorAutoSwap = LD DEMAND SWAP
Priority ctrl = SLAVE
#PwrBandContr1 = 1
#PwrBandContr2 = 2
#PwrBandContr3 = 2+3
#PwrBandChngDlUp = 10s
#PwrBandChngDlDn = 10s
Control group = COMMON
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