Antisurge Control Application for Packaged Compressor ... · antisurge and performance control,...
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Main components • Industrial PLC • Operator display • PC based configuration tool • Serial interfacing to DCS Two invariant coordinate systems • Reduced head (h r ) versus reduced flow (q r ) • Compression ratio (RC) versus reduced flow (q r ) Calculated variables • Invariant coordinate values are used for control; the ACA foresees in calculation of the compressor engineering variables for display purposes to the operator Four lines of protection • Surge detect line • Open loop response line • Surge control line • Predictive control line Feed forward control • Interactions between multiple antisurge control loops or between antisurge control loop and a performance control loop for increased stability at process disturbances Sequencing • Automatic loading and unloading of a compressor in conjunction with its companion performance controller Projected flow algorithm • Enables running without a functioning flow transmitter or even without a flow measurement Compressor performance deviation alarming • Expected and actual performance are compared and alarmed in case diverging Fallback strategies • Continued and stabilized compressor running when one or more of the measurements used for protection fail Control solutions to the Oil & Gas, Chemical and Petrochemical industries world wide Control-Care’s Antisurge Control Application (ACA), designed for packaged 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). The entire Control-Care compressor control scheme can include antisurge and performance control, load balancing optimization, parametric diagnostics and ESD system interfacing. Alarms and events • Time stamped alarm and event reporting for signaling and troubleshooting purposes Sequence of event history on control system hardware, time stamped • Standard (x) points* history in stand alone mode Critical event (such as a compressor surge) back-up on control system platform • High resolution recording of critical parameters, (x) minutes* prior and (y) minutes* after the event User friendly application configurator • Upper screen provides for loop configuration settings • Lower screen shows dedicated loop’s contribution to overall output Surge tester • Straight forward surge validation and testing • Fully automatic configuration of tested surge points • Easy interfacing for surge line modifications • Password protected user level access Application control functions are selectable • Customize each application individually by enabling or disabling site specific functionality (no programming) Configuration tool • Hardware platform independent • Compressor maps • Faceplate • Automated surge line testing and validation *) Quantity is configurable Antisurge Control Application for Packaged Compressor Units (PCU) Control-Care BV Kabelweg 37 • 1014 BA Amsterdam • The Netherlands T +31 (0)20 6376 801 • F +31 (0)20 6362 780 www.control-care.com • info@control-care.com De Steiger 215 • 1351 AW Almere • The Netherlands T. +31(0) 36 531 4014 • www.dgfg.nl • sales@dgfg.nl
Transcript of Antisurge Control Application for Packaged Compressor ... · antisurge and performance control,...
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]
