gefran TPD32-EV-500 series - Flux; if Curve Tuning (Flux; if Curve); Others Tuning

—————— TPD32-EV ——————
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5.3.7 Others tuning
Flux / if curve tuning (Flux / if curve)
Thefunctionofthiscurveistomodeltherealuxofthemotor.Theuxmodelallowsthecontroloftorque
currenttobetterrelatetotorque.Thegurebelowdescribestherelationbetweenuxanduxcurrentincondi-
tionsofFlux /if curve denedandnotdened.
note! Theeldcurrent(previoussection)andtheoutputvoltagetunings(nextsection)mustbecarried
outwhenaVoltagecontrolisrequired,whethertherelevantuxcurvehasbeendenedornot.
Thetuningsscaleisthefollowing:
- Field current regulator
- Flux/ if curve tuning (Flux / if curve)
- Voltage regulator in the eld converter
40% 50% 70% 90% 100%
50% Motor nom flux
I field cnst 90
I field cnst 70
I field cnst 40
Flux cur rent
Flux reference
100%
Curve A
Curve B
Figure 5.3.7.1: Curve convertion flux/current
Example:
A- Withthedefaultsettingoftheconverter,therewillbealinearcharacteristic(CurveA)oftheuxcurrent
(Flux current)whentheparameterFlux reference changes.
 Then:
Flux current max / Flux reference=100%Flux current / Flux reference=Motornomux
Flux current max / Flux reference=50%Flux current / Flux reference=50%ofMotornomux
B- Carryingoutthetuningoftheuxcurve(seebelowtuningprocedure)theresultwillbeemphasizedby
curveB.ThevaluesofFlux currentwillfollowacharacteristicdeterminedbytherealuxpercentageFlux
reference,necessarytodeterminatethecirculationofthateldcurrentfortheconnectedsystem.