Review of overvoltage and resonance problems and reduction of in a DTC-controlled five-level flying capacitor drive

• Autorzy: Arasteh M. , Rahmati A. , Farhangi S. , Abrishamifar A.

Warianty tytułu

PL

Problem przepięć i rezonansów w wielopoziomowych napędach typu DTC ze sterowaną pojemnością

• Języki publikacji: EN

Abstrakty

EN

The overvoltage and resonance problems that cause early defects in the stator winding insulation are well known in the low voltage drives. This paper investigates these problems the medium voltage drives and offers the necessary measures to prevent these problems in a DTCcontrolled five-level flying capacitor drive. With properly designed switching tables and using a fixed switching frequency, occurrence of overvoltage is prevented. Also, using a fixed switching frequency of occurrence of resonance is prevented. Simulation results and implementing a 3kVA samples using direct torque control strategy has been presented confirming the proposed solutions.

PL

Problemy przepięć i rezonansów powodujących uszkodzenia izolacji stojana są dobrze znanym problemem napędów niskonapięciowych. W artykule zbada no podobne zjawiska występujące w napędach średniego napięcia i zaproponowano metody zapobiegania tym problemom na przykładzie pięciopoziomowego napędu ze sterowaną pojemnością. Dzięki prawidłowemu zaprojektowaniu systemu przełączania zapobiega się przepięciom. Rezultaty symulacji i zastosowanie w układzie 3 kVA potwierdziły założenia pracy.

Słowa kluczowe

EN

voltage reflection; resonance phenomena; flying capacitor inverter

PL

przepięcia; rezonans

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2011
• Tom: R. 87, nr 2
• Strony: 269--275
• Opis fizyczny: Bibliogr. 43 poz., rys., tab.

Twórcy

autor

Arasteh M.

autor

Rahmati A.

autor

Farhangi S.

autor

Abrishamifar A.

• School of Electrical Engineering, Iran University of Science and Technology, Narmak, Teheran, Iran,

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