A simple on-line adaption for indirect field orientation of an induction machine

Rowan, T.M.; Kerkman, R.J.; Leggate, D.

doi:10.1109/28.85488

Cited by 160 publications

(53 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Closeness to a saddle-node bifurcation tends to deteriorate the system's performance and efficiency. Furthermore, much larger degrees of tuning are likely to temporarily occur when adaptive techniques (like [31]) are employed, reaching the region where multiple equilibria are present. Thus, the results also have practical implications regarding the stability analysis and the design of adaptive IFOC drives.…”

Section: Discussionmentioning

confidence: 99%

Robustness margins for indirect field-oriented control of induction motors

Bazanella

Reginatto

2000

IEEE Trans. Automat. Contr.

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 99%

Robustness margins for indirect field-oriented control of induction motors

Bazanella

Reginatto

2000

IEEE Trans. Automat. Contr.

View full text Add to dashboard Cite

“…The flux estimator computes the feedback quantitiesψ ds andψ qr which are compared with the corresponding references. Although the control system shown in Figure 2 exhibits similarities to a model reference adaptive control (MRAC) [11], it differs from the MRAC because the reference quantities are predetermined, but not calculated with respect to the machine model.…”

Section: Formulation Of Estimation Modelsmentioning

confidence: 99%

“…Among various estimation models for on-line adaption of the rotor flux reference frame discussed in [11], the selected one has the highest sensitivity to the reference frame detuning at low-load conditions. In (20), as it was the case for estimation model (19), an estimation of the stator resistance and the transient inductance is supposed to be performed by means of the standstill tests.…”

Section: Formulation Of Estimation Modelsmentioning

confidence: 99%

Magnetization Curve Identification of Vector-Controlled Induction Motor at Low-Load Conditions

Terzić

Despalatović

Slutej³

2012

Automatika

View full text Add to dashboard Cite

Original scientific paperIn many drives the induction motor torque is transferred to the load through complex mechanical connections which produce an initial load. In such cases, to identify the magnetization curve by the no-load test it is necessary to decouple the motor from the transfer gear what is expensively and time-consuming. In an attempt to avoid the motor mechanical decoupling in the case of hoist crane systems, in this paper a method is proposed for the magnetization curve identification of the indirect rotor flux oriented (IRFO) induction machine at low-load conditions. Two flux controllers with estimated feedback quantities are added to the basic structure of the IRFO control drive. One of these controllers is used to control desired operating point on the magnetization curve and the other for on-line adaption of the reference frame position. The proposed algorithm is implemented in a commercial drive as a part of the self-commissioning module. Afterward, the magnetization curve of the 22 kW induction motor was identified and compared with the one obtained by the no-load test. The method sensitivity to the load torque and the transient inductance has also been considered. Key words: Induction motors, Magnetization curve, Parameter estimation, Vector controlOdredivanje krivulje magnetiziranja vektorski upravljanog asinkronog motora kod malih opterećenja. Brojni su primjeri pogona u kojima se moment asinkronog stroja prenosi na radni mehanizam preko mehaničkih reduktora koji mogu predstavljati značajno opterećenje motoru i u režimu neopterećenog pogona. Da bi se u takvim slučajevima odredila krivulja magnetiziranja iz pokusa praznog hoda nužno je odspojiti motor od reduktora što je skupo i vremenski zahtjevno. U pokušaju da se izbjegne mehaničko odspajanje motora kod dizaličnih sustava, u ovom je radu predložena metoda za odredivanje krivulje magnetizranja vektorski upravljanog asinkronog motora kod malih iznosa opterećenja. Dva regulatora ulančenog toka s estimiranim veličinama u granama povratne veze dodani su osnovnoj strukturi vektorski upravljanog pogona. Jedan od regulatora koristi se za upravljanje željenom radnom točkom na krivulji magnetiziranja dok se drugi koristi za podešavanje referentnog položaja vektora toka rotora. Predloženi algoritam implementiran je u komercijalnom uredaju kao jedan od samopodešavajućih modula koji se koriste prilikom puštanja u rad pogona. Nakon toga je opisanim postupkom odredena krivulja magnetiziranja 22 kW asinkronog motora i usporedena s krivuljom dobivenom iz klasičnog pokusa praznog hoda. Takoder je razmotrena i osjetljivost metode na iznos momenta opterećenja i tranzijentnog induktiviteta.

show abstract

“…There is always a machine model (MM) in the center of every FOC based control method which is the base point of the control proceedings [4,5]. MM is used to simulate the real machine and in order to have proper simulation which follows well the behavior of the real machine it is essential to have a MM with the correct parameters.…”

Section: Introductionmentioning

confidence: 99%

Model Reference Adaptive System for the Online Rotor Resistance Estimation in the Slip-Ring Machine Based Test-bench

Égető

Farkas

2018

Period. Polytech. Elec. Eng. Comp. Sci.

View full text Add to dashboard Cite

Motor control algorithms with high dynamics are generally based on two basic approach field oriented control (FOC) and direct torque control (DTC). The idea of the first one is to decompose the stator current based on the rotor flux, the second one controls the torque based on the stator flux. Therefore, the FOC is very sensitive to the parameter accuracy regarding the drive performance. That is why it is crucial to verify the parameter identification in the real environment. On the other hand, the parameter sensitivity of DTC is much smaller since the stator flux estimation requires only the knowledge of the stator resistance. The article focuses on the verification of rotor resistance identification in the FOC based drive system by means of the slip ring machine based test bench. The recommended procedure calculates the torque based on the stator current and flux to implement model reference adaptive system for online rotor resistance estimation without signal injection.

show abstract

A simple on-line adaption for indirect field orientation of an induction machine

Cited by 160 publications

References 8 publications

Robustness margins for indirect field-oriented control of induction motors

Robustness margins for indirect field-oriented control of induction motors

Magnetization Curve Identification of Vector-Controlled Induction Motor at Low-Load Conditions

Model Reference Adaptive System for the Online Rotor Resistance Estimation in the Slip-Ring Machine Based Test-bench

Contact Info

Product

Resources

About