An Improved Double Closed Loop Control Strategy for Air Plasma Cutting Converter

• Autorzy: Liu B. , Duan S. , Li X.

Warianty tytułu

PL

Ulepszona strategia sterowania konwertera do cięcia plazmowego

• Języki publikacji: EN

Abstrakty

EN

A double closed loop control strategy composed of inner voltage-loop and external current-loop with a current-reference feedforward link was proposed based on the output characteristic of an air plasma cutting converter(APCC) with non-contact arc ignition. An equivalent mathematical model of the APCC was presented and a controller was designed via frequency domain analysis. Experiments verified that the proposed control strategy showed excellent dynamic and static performance, which significantly improved the arc ignition and the robustness against load disturbance.

PL

Przedstawiono strategię sterowania konwertera do cięcia plazmowego z podwójną pętlą złożoną z wewnętrznej pętli napięcia i zewnętrznej prądowej. Przedstawiono model matematyczny i projekt z analizą w domenie częstotliwości. Obiekt sprawdzono eksperymentalnie.

Słowa kluczowe

EN

air plasma cutting converter; double closed loop; phase-shift full-bridge; arc ignition process

PL

cięcie plazmowe; podwójna pętla sterowania; zapłon łuku

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2012
• Tom: R. 88, nr 2
• Strony: 278--282
• Opis fizyczny: Bibliogr. 14 poz., rys., tab., wykr.

Twórcy

autor

Liu B.

autor

Duan S.

autor

Li X.

• Huazhong University of Science and Technology, P.R.China,

Bibliografia

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