Active And Reactive Power Control Modes In Mint; Power Management - ComAp IG-NT Reference Manual

6) If total load increases and selected LoadRes strt is no more fulfilled, after a Next start del next ready
gen-set with the highest priority (lowest priority number) is started and synchronized to the bus.
7) If load decreases and selected LoadRes stp is exceeded, after a Next stop del the running gen-set with
the lowest priority is unloaded, got off line, cooled and stopped.
8) Complete gen-sets group stops when binary input SYS START/STOP opens. If the input MCB
FEEDBACK is closed (gen-sets are in parallel to mains) controllers softly transfer the load to the mains.
When gen-set is unloaded (see GCB open level or GCB open del) opens the output GCB
CLOSE/OPEN.
9) The Running hours balancing or Load demand engines swap can be activated in power management.
H
INT
Controller does not respond to GCB ON/OFF , STOP, START buttons and corresponding remote
InteliMonitor or Modbus commands in AUT mode.
Set Basic setting: FltRes GoToMAN = ENABLED to avoid automatic engine start when pressing FAULT
nd
RESET after any 2 level alarm (Shutdown, Slow stop, Breaker Open&Cooldown).

Active and Reactive Power control modes in MINT

System Base load
Gen-set group is controlled on constant (or adjustable) power. The Baseload value can by changed by
setpoint or via analog input.
Important setpoints: ProcessControl: #SysLdCtrlPtM = BASELOAD; #SysBaseload; SysBaseLdMode.
Local Baseload
Selected gen-set from island or mains parallel running group can be loaded to constant LocalBaseload
value. This engine is taken out from Load sharing and Power management. LocalBaseload value is reduced
only when common group (actual) load is lower than this value. The gen-sets in the group will try to match
their LocalBaseloads (when more than one) based on their controller addresses, so the first limited would be
the one with the highest CAN address. I.e. this function will switch-off automatically in one or more
controllers if there is not enough load to cover all the requested LocalBaseloads.
Important setpoints: ProcessControl: LocalBaseload.
System Base power factor
Gen-set group is controlled in mains parallel to keep a constant (or adjustable) power factor.
Important setpoints: ProcessControl: #SysPFCtrlPtM = BASEPF; #SysPwrFactor.
Import-Export
Gen-set group is controlled to keep constant (or adjustable) Import or Export value. The external controller
InteliMains NT must be connected on the CAN2 to control gen-set group kW I/E.
Important setpoints: ProcessControl: #SysLdCtrlPtM = LDSHARING.
Import/Export power factor
Gen-set group is controlled to keep constant (or adjustable) Import or Export power factor.
Important setpoints: ProcessControl: #SysLdCtrlPtM = VSHARING. The external InteliMains NT controller
must be connected on the CAN2 to control gen-set group PF I/E.

Power management

Automatic gen-set start / stop function based on load changes and/or Running hours or Engine size.
Following functions are available:
Power management in kW
Guarantees adjustable load reserve (load step) in kW. Suitable for load demand-based optimization.
Activation: Pwr management:#Pwr mgmt mode = ABS (kW)
Inteli NT MINT, SW Version 3.0, ©ComAp –May 2013
IGS-NT-MINT-3.0 Reference Guide.PDF
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