Grid-tied converter operated under unbalanced and distorted grid voltage conditions

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

Identyfikatory

DOI

10.24425/bpasts.2020.133109

• Języki publikacji: EN

Abstrakty

EN

The paper presents a three-phase grid-tied converter operated under unbalanced and distorted grid voltage conditions, using a multi-oscillatory current controller to provide high quality phase currents. The aim of this study is to introduce a systematic design of the current control loop. A distinctive feature of the proposed method is that the designer needs to define the required response and the disturbance characteristic, rather than usually unintuitive coefficients of controllers. Most common approach to tuning a state-feedback controller use linear-quadratic regulator (LQR) technique or pole-placement method. The tuning process for those methods usually comes down to guessing several parameters. For more complex systems including multi-oscillatory terms, control system tuning is unintuitive and cannot be effectively done by trial and error method. This paper proposes particle swarm optimization to find the optimal weights in a cost function for the LQR procedure. Complete settings for optimization procedure and numerical model are presented. Our goal here is to demonstrate an original design workflow. The proposed method has been verified in experimental study at a 10 kW laboratory setup.

Słowa kluczowe

EN

grid tied converter; AC/DC converter; current controller; resonant controller; PSO; particle swarm optimization

• Wydawca: Polska Akademia Nauk, Wydział IV Nauk Technicznych
• Czasopismo: Bulletin of the Polish Academy of Sciences. Technical Sciences
• Rocznik: 2020
• Tom: Vol. 68, nr 2
• Strony: 389--398
• Opis fizyczny: Bibliogr. 52 poz., rys., tab.

Twórcy

autor

Gałecki A.

• Warsaw University of Technology, ul. Koszykowa 75, 00-662 Warsaw, Poland

autor

Michalczuk M.

• Warsaw University of Technology, ul. Koszykowa 75, 00-662 Warsaw, Poland

autor

Kaszewski A.

• Warsaw University of Technology, ul. Koszykowa 75, 00-662 Warsaw, Poland

autor

Ufnalski B.

• Warsaw University of Technology, ul. Koszykowa 75, 00-662 Warsaw, Poland

autor

Grzesiak L. M.

• Warsaw University of Technology, ul. Koszykowa 75, 00-662 Warsaw, Poland

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Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).