A New Step-up Voltage Balancing Circuit for Neutral-Point-Clamped Multilevel Inverter

Amir Taghvaie; Md Enamul Haque; Sajeeb Saha; Md Apel Mahmud

doi:10.1109/PEDES.2018.8707464

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A New Step-up Voltage Balancing Circuit for Neutral-Point-Clamped Multilevel Inverter

Conference paper

Peer reviewed

A New Step-up Voltage Balancing Circuit for Neutral-Point-Clamped Multilevel Inverter

Amir Taghvaie, Md Enamul Haque, Sajeeb Saha and Md Apel Mahmud

2018 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES), pp.1-6

IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES), 2018 (Chennai, India, 18-Dec-2018–21-Dec-2018)

Institute of Electrical and Electronics Engineers

2018

DOI: https://doi.org/10.1109/PEDES.2018.8707464

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Abstract

balancing network

multilevel inverter

carrier-based

switched-capacitor

clamps

voltage control

MATLAB

DC source

This paper introduces a new voltage balancing circuit for Neutral-Point-Clamped (NPC) Multilevel Inverter (MLI). The proposed circuit consists of switched-capacitors network which can easily balance the NPC-MLI by using proper switching state in carrier-based Pulse Width Modulation (CB-PWM) technique. This new voltage balancing network is readily extendable for using at higher-levels (e.g. 4, 5, 6 ...)that facilitate the balancing problem in NPC-MLIs. Moreover, one of the most important features of the proposed balancing network is that it uses only one DC source at the input and can increase the input dc voltage to a higher level at the output without using any magnetic elements. This let the converter operate with the capability of boosting the input at the required output voltage with the ability of self-balancing. The simulation by using MATLAB/Simpower System and experiment set up of the proposed system has been conducted for three-phase four-level NPC-MLI which confirm the ability of the proposed circuit to balance the capacitor voltages properly.

Details

Title: A New Step-up Voltage Balancing Circuit for Neutral-Point-Clamped Multilevel Inverter
Authors: Amir Taghvaie (Author) - Deakin University
Md Enamul Haque (Author) - Deakin University
Sajeeb Saha (Author) - Deakin University
Md Apel Mahmud (Author) - Deakin University
Publication details: 2018 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES), pp.1-6
Conference details: IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES), 2018 (Chennai, India, 18-Dec-2018–21-Dec-2018)
Publisher: Institute of Electrical and Electronics Engineers
Date published: 2018
DOI: 10.1109/PEDES.2018.8707464
ISBN: 9781538693162
Organisation Unit: University of the Sunshine Coast, Queensland; School of Science, Technology and Engineering
Language: English
Record Identifier: 99532306402621
Output Type: Conference paper

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