Modeling of 81-level inverter based on a novel control technique

• Autorzy: Al-Badrani Harith , Antar Rakan Khalil , Saleh Asef A

Identyfikatory

DOI

0.15199/48.2022.03.13

Warianty tytułu

PL

Modelowanie 81-poziomowego falownika w oparciu o nowatorską technikę sterowania

• Języki publikacji: EN

Abstrakty

EN

Multilevel cascaded inverters using the similar DC source values are applied with limited total harmonic distortion (THD). This paper presents multilevel inverter with unequal DC voltage source values and less power switching devices to get different output voltages with different levels. Single-phase four H-bridge inverter cells with DC voltage values of Vdc, 3Vdc, 9Vdc and 27Vdc are adopted and modelled by MATLAB program with resistive and inductive loads. A new control technique, modified absolute sinusoidal PWM (MASPWM), is designed and employed to drive the switching devices of the multilevel inverter to catch output inverter voltage with levels from 3-level to 81-level. That means, it has the ability to get voltage with any required level. Simulation results indicate that the THD magnitudes of the AC current and voltage are changed form 22% and 13.3% to 1.55% and 0.79% for 5-level to 81-level, respectively.

PL

Wielopoziomowe falowniki kaskadowe wykorzystujące podobne wartości źródła prądu stałego są stosowane z ograniczonym całkowitym zniekształceniem harmonicznym (THD). W artykule przedstawiono wielopoziomowy falownik o nierównych wartościach źródła napięcia stałego i mniejszej liczbie urządzeń przełączających moc w celu uzyskania różnych napięć wyjściowych o różnych poziomach. Jednofazowe cztery ogniwa inwertorowe z mostkiem H o wartościach napięcia stałego Vdc, 3Vdc, 9Vdc i 27Vdc są przyjęte i modelowane przez program MATLAB z obciążeniami rezystancyjnymi i indukcyjnymi. Nowa technika sterowania, zmodyfikowana bezwzględna sinusoidalna PWM (MASPWM), została zaprojektowana i zastosowana do sterowania urządzeniami przełączającymi wielopoziomowego falownika w celu wychwycenia wyjściowego napięcia falownika o poziomach od 3-poziomowego do 81-poziomowego. Oznacza to, że ma możliwość uzyskania napięcia na dowolnym wymaganym poziomie. Wyniki symulacji wskazują, że wartości THD prądu i napięcia AC zmieniają się odpowiednio z 22% i 13,3% do 1,55% i 0,79% dla poziomu 5-poziomowego do 81-poziomowego

Słowa kluczowe

EN

multilevel cascaded H-bridge inverter; MASPWM; 81-level; unequal DC voltage source

PL

przekształtnik wielopoziomowy; MASPWM; przekształtnik 81-poziomowy

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2022
• Tom: R. 98, nr 3
• Strony: 54--59
• Opis fizyczny: Bibliogr. 31 poz., rys.

Twórcy

autor

Al-Badrani Harith

• Ninevah University, Mosul, Iraq

• https://orcid.org/0000-0001-6478-2417

autor

Antar Rakan Khalil

• Northern Technical University, Iraq

• https://orcid.org/0000-0001-8203-8579

autor

Saleh Asef A

• Northern Technical University, Iraq

• https://orcid.org/0000-0002-5235-2767

Bibliografia

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