On the similarity and challenges of multiresonant and iterative learning current controllers for grid converters and why the disturbance feedforward matters

• Autorzy: Ufnalski B. , Grzesiak L M. , Kaszewski A. , Galecki A.

Identyfikatory

DOI

10.15199/48.2018.05.07

Warianty tytułu

PL

O podobieństwach i wyzwaniach regulatorów wielorezonansowych i regulatorów z uczeniem iteracyjnym dla przekształtników sieciowych oraz dlaczego sprzężenie w przód ma znaczenie

• Języki publikacji: EN

Abstrakty

EN

There are two main techniques to solve the reference tracking problem for repetitive references and under repetitive disturbances, namely multiresonant (a.k.a. multioscillatory) controllers and iterative learning controllers. Nevertheless, neither of the approaches is a definitive winner, which is to be demonstrated herein. Both have their strengths, weaknesses and challenges. A grid-tie converter will be the case study here. The goal is to draw or inject sinusoidal currents under distorted grid voltage conditions. The supporting feedforward controller will be addressed within the context of the discussed repetitive control task. The case will be illustrated using numerical simulations. Our main goal is to make practitioners familiar with the relationships between these two control methods.

PL

Istnieją dwia główne sposoby rozwiązywania zadania regulacji nadążnej dla powtarzalnego sygnału zadanego w obecności powtarzalnego zakłócenia, jest to zastosowanie regulatorów wielorezonansowych (zwanych też wielooscylacyjnymi) oraz regulatorów z uczeniem iteracyjnym. Jednak żadnego z tych rozwiązań nie można uznać za jednoznacznie lepsze, co zostanie tutaj pokazane. Oba cechują zarówno mocne strony, jak i pewne słabci oraz wyzwania implementacyjne. Przekształtnik sieciowy posłuży tutaj za przykład. Celem jest pobieranie lub oddawanie sinusoidalnego prądu sieci pomimo odkształconego napięcia. Omówione zostanie również sprzężenie w przód od zakłócenia w kontekście zadania sterowania powtarzalnego. Zagadnienie zostanie zilustrowane przy użyciu symulacji komputerowych. Naszym głównym celem jest pokazanie praktykom związków pomiędzy tymi dwiema metodami sterowania.

Słowa kluczowe

EN

repetitive control; iterative learning control; multiresonant controller; grid converter; disturbance feedforward

PL

sterowanie powtarzalne; sterowanie z uczeniem powtarzalnym; regulator wielorezonansowy; przekształtnik sieciowy; sprzężenie w przód od zakłócenia

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2018
• Tom: R. 94, nr 5
• Strony: 38--46
• Opis fizyczny: Bibliogr. 26 poz., rys., tab., wykr.

Twórcy

autor

Ufnalski B.

• Institute of Control and Industrial Electronics, Faculty of Electrical Engineering, Warsaw University of Technology, 75 Koszykowa St., Warsaw 00-662, Poland

autor

Grzesiak L M.

• Institute of Control and Industrial Electronics, Faculty of Electrical Engineering, Warsaw University of Technology, 75 Koszykowa St., Warsaw 00-662, Poland

autor

Kaszewski A.

• Institute of Control and Industrial Electronics, Faculty of Electrical Engineering, Warsaw University of Technology, 75 Koszykowa St., Warsaw 00-662, Poland

autor

Galecki A.

• Institute of Control and Industrial Electronics, Faculty of Electrical Engineering, Warsaw University of Technology, 75 Koszykowa St., Warsaw 00-662, Poland

Bibliografia

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• [2] Nazir R.: Advanced repetitive control of grid converters for power quality improvement under variable frequency conditions, Ph.D. Dissertation, University of Canterbury, Christchurch, New Zealand, 2015.
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• [10] Ufnalski B., Grzesiak L.: Repetitive neurocontroller with disturbance feedforward path active in the pass-to-pass direction for a VSI inverter with an output LC filter, Bulletin of the Polish Academy of Sciences – Technical Sciences, PAN, vol. 64, no. 1, pp. 115–125, 2016.
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• [14] Galecki A., Michalczuk M., Kaszewski A., Ufnalski B., Grzesiak L.: Multi-oscillatory current control with anti-windup for grid-connected VSCs operated under distorted grid voltage conditions, European Power Electronics (EPE’17 ECCE Europe) Conference, Warsaw, 2017.
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• [19] Nazir R.: Taylor series expansion based repetitive controllers for power converters, subject to fractional delays, Control Engineering Practice, vol. 64, pp. 140–147, 2017.
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• [22] Yang Y., Zhou K., Blaabjerg F.: Frequency adaptability of harmonics controllers for grid-interfaced converters, International Journal of Control, 90:1, 3–14, 2017.
• [23] Wang X., Blaabjerg F., Loh P. C.: Design-oriented analysis of resonance damping and harmonic compensation for LCL filtered voltage source converters, International Power Electronics Conference (IPEC – ECCE ASIA), pp. 216-223, 2014.
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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).