Adaptive interval type2 fuzzy hysteresis-band current-controlled active power filter for power quality improvement

• Autorzy: Jajarmi H. R. I. , Mohamed A. , Shareef H. , Subiyanto

Warianty tytułu

PL

Adaptacyjny filtr aktywny do poprawy jakości mocy bazujący na sterownku histerezowym fuzzy logic

• Języki publikacji: EN

Abstrakty

EN

This paper presents a novel adaptive hysteresis current control based on interval type2 fuzzy logic for active power filter to eliminate harmonics and compensate for reactive power. A new method to generate reference compensating current for the fundamental active current component is also proposed using the recursive discrete Fourier transform. The switching frequency of the conventional fixed hysteresis band (HB) control during the fundamental period is varied; thus causing harmonic ripple of the load current. This problem can be solved using adaptive HB control strategy. In this study, a fuzzy logic controller is used for base control because of its advantages over other adaptive HB techniques, such as mathematical simplicity, ease in adding heuristic knowledge, and robust changes in system operating conditions. An interval type2 fuzzy-adaptive HB technique is utilized for the current control to enhance the switching signals produced by the voltage source inverter. Based on the supply voltage and the slope of the reference current, this controller changes the hysteresis bandwidth. To control the DC capacitor voltage, an interval type2 fuzzy logic based controller is developed. Simulation results of the shunt active power filter with an interval type2 fuzzy adaptive HB current controller are examined and compared with the conventional controller. The results verify the effectiveness of the proposed controller in reducing total harmonic distortion from 21.03% to 2.12% and reactive power from 2616 Var to 6.28Var.

PL

Zaprezentowano nową metodę adaptacyjnego sterowanie prądem w celu eliminacji harmonicznych i kompensacji mocy biernej. Wykorzystano aktywny filtr bazujący na logice rozmytej typu 2. Stosuje się adaptacyjne histerezowe sterowanie w celu poprawy sygnału przełączania wytwarzanego przez przekształtnik napięciowy. Sterownik zmienia szerokość histerezy bazując na wartości napięcia zasilaniam i szybkości zmian pradu. Zmniejszono zawartość harm onicznych z 21% do 2 % i moc bierna z 2616 Var do 6,3 VAR.

Słowa kluczowe

EN

active power filter; Fourier transform; interval; power quality conditioner

PL

kompensacja mocy biernej; filtr aktywny; logika rozmyta

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2014
• Tom: R. 90, nr 9
• Strony: 140--145
• Opis fizyczny: Bibliogr. 22 poz., rys., tab., wykr.

Twórcy

autor

Jajarmi H. R. I.

• Department of Electrical, Electronic and Systems Engineering, University Kebangsaan Malaysia (UKM), 43600 Bangi, Selangor, Malaysia

autor

Mohamed A.

• Department of Electrical, Electronic and Systems Engineering, University Kebangsaan Malaysia (UKM), 43600 Bangi, Selangor, Malaysia

autor

Shareef H.

• Department of Electrical, Electronic and Systems Engineering, University Kebangsaan Malaysia (UKM), 43600 Bangi, Selangor, Malaysia

autor

Subiyanto

• Department of Electrical, Electronic and Systems Engineering, University Kebangsaan Malaysia (UKM), 43600 Bangi, Selangor, Malaysia

Bibliografia

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