Main components• IndustrialPLC• Operatordisplay• PCbasedconfigurationtool• SerialinterfacingtoDCS
Two invariant coordinate systems• Reducedhead(hr)versus reducedflow(qr)• Compressionratio(RC)versus reducedflow(qr)
Calculated variables• Invariantcoordinatevaluesare usedforcontrol;theACAforesees incalculationofthecompressor engineeringvariablesfordisplay purposestotheoperator
Four lines of protection• Surgedetectline• Openloopresponseline• Surgecontrolline• Predictivecontrolline
Feed forward control• Interactionsbetweenmultiple antisurgecontrolloopsorbetween antisurgecontrolloopanda performancecontrolloopfor increasedstabilityatprocess disturbances
Sequencing• Automaticloadingandunloadingof acompressorinconjunctionwithits companionperformancecontroller
Projected flow algorithm• Enablesrunningwithouta functioningflowtransmitteror evenwithoutaflowmeasurement
Compressor performance deviation alarming• Expectedandactualperformance arecomparedandalarmedin casediverging
Fallback strategies• Continuedandstabilizedcompressor runningwhenoneormoreofthe measurementsusedforprotectionfail
Control solutions to the Oil & Gas, Chemical and Petrochemical industries world wideControl-Care’s Antisurge ControlApplication (ACA), designed forpackaged compressor units, protects the compressor from surge efficiently and reliably. An elegant and affordable solution for packaged compressor units using Honeywell’s Control Edge product family.Control-Care’s method of accurately defining the surge line over a wide range of changing process conditions allows setting of the control line for optimum surge protection without unnecessary recycling or blow-off, compatible with industry standard API672 (AIR).
TheentireControl-Carecompressorcontrolschemecanincludeantisurgeandperformancecontrol,loadbalancingoptimization,parametricdiagnosticsandESDsysteminterfacing.
Alarms and events• Timestampedalarmandevent reportingforsignalingand troubleshootingpurposes
Sequence of event history on control system hardware, time stamped• Standard(x)points*historyin standalonemode
Critical event (such as a compressor surge) back-up on control system platform• Highresolutionrecordingofcritical parameters,(x)minutes* priorand(y)minutes*aftertheevent
User friendly application configurator• Upperscreenprovidesforloop configurationsettings• Lowerscreenshowsdedicated loop’scontributiontooverall output
Surge tester• Straightforwardsurgevalidation andtesting• Fullyautomaticconfiguration oftestedsurgepoints• Easyinterfacingforsurgeline modifications• Passwordprotecteduser levelaccess
Application control functions are selectable • Customizeeachapplication individuallybyenablingor disablingsitespecific functionality(noprogramming)
Configuration tool• Hardwareplatformindependent• Compressormaps• Faceplate• Automatedsurgelinetesting andvalidation
*)Quantityisconfigurable
Antisurge Control Application for Packaged Compressor Units (PCU)
Control-Care BVKabelweg37•1014BAAmsterdam•TheNetherlandsT+31(0)206376801•F+31(0)206362780www.control-care.com•[email protected]
DeSteiger215•1351AWAlmere•TheNetherlandsT.+31(0)365314014•www.dgfg.nl•[email protected]
Top Related