Predictive Current Control of a Simplified Three-Level Neutral-Point Clamped Inverter

A three-level neutral point clamped (3L-NPC) inverter is built with a larger number of semiconductor devices. Therefore, predictive current control (PCC) of 3L-NPC faces two issues regarding the reliability and computational cost. To overcome the problem, this paper presents predictive current contr...

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Bibliographic Details
Published in2019 3rd International Conference on Electrical, Computer & Telecommunication Engineering (ICECTE) pp. 280 - 283
Main Authors Hossain, Md. Anwer, Tariquzzaman, Md, Podder, Amit Kumer, Hossain Sabbir, Md. Shahadath, Habibullah, Md
Format Conference Proceeding
LanguageEnglish
Published IEEE 26.12.2019
Subjects
Capacitors
Computational burden
Computational modeling
Inverters
Load modeling
Mathematical model
Multilevel inverter
Neural-point clamped inverter
Predictive control
Switches
Voltage control
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Summary:A three-level neutral point clamped (3L-NPC) inverter is built with a larger number of semiconductor devices. Therefore, predictive current control (PCC) of 3L-NPC faces two issues regarding the reliability and computational cost. To overcome the problem, this paper presents predictive current control of a three-level simplified neutral-point clamped (3L-SNPC) inverter. Due to having the simplicity of adding a newer constraint in the cost function, the capacitor voltages of NPC inverter are perfectly balanced. Simulation results indicate that the proposed PCC based SNPC inverter yields similar performance as obtained with the conventional 3L-NPC. However, the SNPC inverter requires eight less number of semiconductor devices, which enhances the reliability and reduces the computational burden of the proposed system. In comparison to conventional 3L-NPC, the computational burden is reduced by 27.78%.
DOI:10.1109/ICECTE48615.2019.9303549