Finite-StatePredictiveTorqueControl(FS-PTC)isexperimentallyinvestigatedbasedondifferentonline-
optimizationmethodsbyusingatwo-levelvoltagesourceinverterforaninductionmachine.Thecalculation
timeandtheswitchingfrequenciesareimportantresearch pointsforFS-PTCindustrial applications.Long-step
FS-PTCmethodsareexpectedtoimprovetheperformanceofthesystem.However,thecalculationtimewill
increaseexponentiallywiththeincreaseofthepredictionhorizon.AreducedswitchingfrequencyPTC(RSF-
PTC) methodbyconsideringthereductions oftheswitchingfrequencyandthecalculationtimeistested.Based
on thisalgorithm,anextendedpredictionhorizonisproposedandverified onacommontestbench.Atorque-
bandbasedPTC(TB-PTC)methodisproposed anddiscussedinthispaper. TheTB-PTCmethodpre-calculates
thetorqueerrorbetweenthepredictedtorqueandthetorquereference.Theoptimizationmethodfocuseson
the flux errorandtheswitchingfrequencyforswitchingstateswhichconstrainthetorqueerrorwithinthe
torque-band.TheconventionalFS-PTCmethod,theRSF-PTCmethodwithone-stepandtwo-stephorizonsand
the TB-PTCmethodaredevelopedandexperimentallycomparedinthiswork.Theresultsconfirm that
conventionalFS-PTC,RSF-PTCandTB-PTCmethodscanworkwellinthefullspeedrange.Whentheswitching
frequenciesandthecalculationeffortaretakenintoconsideration,theRSF-PTCalgorithmshowsthebetter
performance.However,theconventionalFS-PTCmethodandtheTB-PTCmethodhavebettercurrent
performance.
«
Finite-StatePredictiveTorqueControl(FS-PTC)isexperimentallyinvestigatedbasedondifferentonline-
optimizationmethodsbyusingatwo-levelvoltagesourceinverterforaninductionmachine.Thecalculation
timeandtheswitchingfrequenciesareimportantresearch pointsforFS-PTCindustrial applications.Long-step
FS-PTCmethodsareexpectedtoimprovetheperformanceofthesystem.However,thecalculationtimewill
increaseexponentiallywiththeincreaseofthepredictionhorizon.AreducedswitchingfrequencyPTC(RSF-
PTC) methodbyconsideri...
»