TaiJi PID
TaiJi PIDA Comprehensive Closed-Loop Tuning Solution
F E AT U R E S & B E N E F I T S
• OptimizemultiplePIDcontrollers
simultaneouslyinaclosedloop
• Enabletuningthroughnon-
disruptiveclosed-looptesting
• Increaseplantproductivity
whilereducingdowntimeand
maintenancecosts
• Decreasevariabilityand
operatingcosts
C H A L L E N G E S
Efficiencyandprofitabilityarecriticaltoaplant,andinanenvironmentwhere
thousandsofregulatorycontrolloopsburdenoverwhelmedcontrolengineers
andtechnicians,plantresourcesneedamethodofmanagingandtuningloops
withoutcompromisingproductivity.
Therearehundreds,eventhousandsofregulatorycontrolloopsacrossallplantareas,
allwhichmaybecorrelated,basedontheselectionoftheirtuningparameters.
Unavoidably,theperformanceofthesecontrolassetsdeterioratesovertimeand
impactstheprocessperformance.
Thesheernumberofthesecriticalassets,coupledwithdiminishingpersonnel
expertise,makesdiagnosingproblemsandsettingprioritiesbasedoneconomic
impactextremelychallenging.Assetsbelievedtobecriticalreceivepriority
whileothers“run-to-failure”,precipitatingcontrolproblemsinassociatedassets
anddegradingplantperformance.Asaresult,maintenanceofcontrolassetsis
reactiveratherthanpredictiveorcondition-based.
Changesinvariablessuchasplantratesandenergycostsalsoaffectthe
performanceofplantcontrols.Assetsthatperformedwellunderonesetof
conditionsmayrequirere-tuninginordertoprovideoptimalresultsunder
another.Theabilitytotuneloopsinaclosed-loopenvironment,withoutplacing
potentiallypoorlytunedloopsinmanualisessentialinreducingmaintenance
time,andsettingprioritiestoeffectivelydealwithproblemsthatwillhavethe
mostsignificantimpactonplantperformanceandprofitability.
O P T I M I Z E M U LT I P L E P I D C O N T R O L L E R S
S I M U LTA N E O U S LY I N C L O S E D L O O P
TaiJiPIDisanintuitivePIDLoopTuningandOptimizationapplicationthat
eliminatestheguessworkincontroltuningandloopoptimizationbyallowing
youtotunehigh-performancecontrollerswithoutbreakingopenloopsormaking
manualadjustments.TaiJiPIDisPoweredbyMatrikon,whichrepresentsvendor
neutrality.Thisproductworkswiththird-partycontrolsystemsandapplications.
Itistheonlytuningproductinthemarketthatleveragesuniversalconnectivity
toenabletuningthroughnon-disruptiveclosed-looptestingunderanycondition.
Couplingclosed-looptestingandidentificationtechnologywithamodel-based
tuningapproach,TaiJiPIDusesasingleplatformtotest,tune,andtrend
multipleloopssimultaneously.
TaiJimakesclosedlooptestingeffectiveandsaferbyensuringthesizeofthesteps
issmallrelativetotheprocessoperatingpoint.TaiJiPIDcanalsocarryouttestingin
open-loopconditionstraditionallywheretherearenocontrol-loopscurrently.
A Comprehensive Closed Loop Tuning Solution
TaiJi PID
Benefits Throughout the
Enterprise• Improvedcontrolperformance
acrossallplantsites
• Loweradoptioncostthroughasingle,
bestpracticessolution,suitablefor
allregulatorycontrolplatforms
• Minimizeimpactofcontrolasset
degradationthroughcondition-
basedmaintenance
• Increasedefficiencyandprofitability
Benefits for Operations• Opportunityforincreasedplant
throughput
• Reductionsinprocessvariability
• Improvedproductquality
• Improvedyields
• Reductionsinenergyconsumption
• Reducedcostandimproved
effectivenessthroughcondition-
basedmaintenance
Benefits for Maintenance• Asingletuningtool,suitableforall
regulatorycontrolplatforms
• Lessintrusive,closed-looptuning
methodology,makinglooptuning
easierandmoreeffective
• Automatedtestingcapabilities,
reducingmanpowerrequirements
TA I J I P I D M E T H O D O LO G Y
Aclosed-loopmethodologythatincreasesplantproductivity,whilereducingdowntimeandmaintenancecosts.
I M AG E / G R A P H I C
Automated Closed Loop
Testing• Testunderclosed-loopconditions
• Testmultipleloopssimultaneously
–leadstosignificanttimesavings
• Asafeapproachtosteptesting
Closed Loop Modeling• Usingclosed-loopdata
• Developaccurateopen-loop
modelsfromclosed-loopdata
• Useoperatingdatawherethereis
sufficientinformation
• Modelgradedquantitativelyfrom
A→D
Tuning and Simulation• Tunequicklyusingtheestimated
open-loopmodels
• Simulateserverandloadrejection
responses
• Carryoutrobustnessanalysis
• Compareagainstcurrenttuning
I M AG E / G R A P H I C I M AG E / G R A P H I C
Wehaveusedothertuningtoolsinthepast,butwithTaiJiPID,wehavereachedacontrollevelthathasneverbeenreachedbefore.Ouroperatorsarenowmoreavailable.Thisisarevolutionarytool.
FrancoisTremblaySupervisor&Planner,
ElectricalandInstrumentationXstrataRaglanMine
D E C R E AS E D VA R I A B I L I T Y A N D O P E RAT I N G C O ST S
TheeasyimplementationofTaiJiPIDtranslatestooverallimprovedoperabilityandstabilityoftheprocess,providingbenefits
throughreductioninoff-specproduction,operatingcostsandproductvariability,aswellasimprovedproductionrates.
Honeywell Process Solutions
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LovelaceRoad,SouthernIndustrialEstateBracknell,Berkshire,EnglandRG128WD
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www.honeywell.com/ps
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and application independent.
For More Information
FormoreinformationaboutControlPerformanceMonitor,visitourwebsitewww.honeywell.com/psorcontactyourHoneywellaccountmanager.
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I M AG E / G R A P H I C
BR 762June 2011© 2011 Honeywell International Inc.