A Three-Phase Constant Common-Mode Voltage Inverter With Triple Voltage Boost for Transformerless Photovoltaic System

A Three-Phase Constant Common-Mode Voltage Inverter With Triple Voltage Boost for Transformerless Photovoltaic System

This paper introduces a new three-phase two-level inverter based on the switched-capacitor voltage multiplier. By adding a voltage multiplier network at the DC side of the traditional three-phase inverter topology, the DC-link voltage of the introduced inverter is stepped up to triple of the input v...

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Main Authors: Tan-Tai Tran, Minh-Khai Nguyen, Van-Quang-Binh Ngo, Huu-Nhan Nguyen, Truong-Duy Duong, Young-Cheol Lim, Joon-Ho Choi
Format: Article
Language:English
Published: IEEE 2020-01-01
Series:IEEE Access
Subjects:
Three-phase inverter
transformerless PV system
common-mode voltage
leakage current
switched-capacitor network
Online Access:https://ieeexplore.ieee.org/document/9193908/
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spelling doaj-ec27da85cf104d71ad8205703fef32772021-03-30T03:27:35ZengIEEEIEEE Access2169-35362020-01-01816669216670210.1109/ACCESS.2020.30231729193908A Three-Phase Constant Common-Mode Voltage Inverter With Triple Voltage Boost for Transformerless Photovoltaic SystemTan-Tai Tran0https://orcid.org/0000-0002-4138-0287Minh-Khai Nguyen1https://orcid.org/0000-0003-1774-0817Van-Quang-Binh Ngo2https://orcid.org/0000-0001-5635-8691Huu-Nhan Nguyen3https://orcid.org/0000-0002-0626-239XTruong-Duy Duong4https://orcid.org/0000-0001-8192-9513Young-Cheol Lim5https://orcid.org/0000-0001-7016-3452Joon-Ho Choi6https://orcid.org/0000-0002-0258-1369Department of Electrical Engineering, Chonnam National University, Gwangju, South KoreaDepartment of Electrical and Computer Engineering, Wayne State University, Detroit, MI, USAInstitute of Research and Development, Duy Tan University, Da Nang, VietnamDepartment of Electrical Engineering, Chonnam National University, Gwangju, South KoreaDepartment of Electrical Engineering, Chonnam National University, Gwangju, South KoreaDepartment of Electrical Engineering, Chonnam National University, Gwangju, South KoreaDepartment of Electrical Engineering, Chonnam National University, Gwangju, South KoreaThis paper introduces a new three-phase two-level inverter based on the switched-capacitor voltage multiplier. By adding a voltage multiplier network at the DC side of the traditional three-phase inverter topology, the DC-link voltage of the introduced inverter is stepped up to triple of the input voltage. Compared to the existing solutions, the common-mode voltage of the introduced topology is kept constant. Moreover, the voltage stress across additional semiconductor components is the same as one-third of DC-link voltage. Operating principles, mathematical analysis, circuit analysis, and pulse-width modulation (PWM) method based on the Boolean logic function for introduced inverter are presented. A comparison of the introduced inverter with other inverter topologies is also reported. The simulation results are shown to verify the introduced three-phase triple voltage boost inverter. Besides that, a laboratory-built prototype is developed based on a DSP F280049C microcontroller and the corresponding experimental tests are provided to prove the introduced inverter.https://ieeexplore.ieee.org/document/9193908/Three-phase invertertransformerless PV systemcommon-mode voltageleakage currentswitched-capacitor network
collection DOAJ
language English
format Article
sources DOAJ
author Tan-Tai Tran
Minh-Khai Nguyen
Van-Quang-Binh Ngo
Huu-Nhan Nguyen
Truong-Duy Duong
Young-Cheol Lim
Joon-Ho Choi
spellingShingle Tan-Tai Tran
Minh-Khai Nguyen
Van-Quang-Binh Ngo
Huu-Nhan Nguyen
Truong-Duy Duong
Young-Cheol Lim
Joon-Ho Choi
A Three-Phase Constant Common-Mode Voltage Inverter With Triple Voltage Boost for Transformerless Photovoltaic System
IEEE Access
Three-phase inverter
transformerless PV system
common-mode voltage
leakage current
switched-capacitor network
author_facet Tan-Tai Tran
Minh-Khai Nguyen
Van-Quang-Binh Ngo
Huu-Nhan Nguyen
Truong-Duy Duong
Young-Cheol Lim
Joon-Ho Choi
author_sort Tan-Tai Tran
title A Three-Phase Constant Common-Mode Voltage Inverter With Triple Voltage Boost for Transformerless Photovoltaic System
title_short A Three-Phase Constant Common-Mode Voltage Inverter With Triple Voltage Boost for Transformerless Photovoltaic System
title_full A Three-Phase Constant Common-Mode Voltage Inverter With Triple Voltage Boost for Transformerless Photovoltaic System
title_fullStr A Three-Phase Constant Common-Mode Voltage Inverter With Triple Voltage Boost for Transformerless Photovoltaic System
title_full_unstemmed A Three-Phase Constant Common-Mode Voltage Inverter With Triple Voltage Boost for Transformerless Photovoltaic System
title_sort three-phase constant common-mode voltage inverter with triple voltage boost for transformerless photovoltaic system
publisher IEEE
series IEEE Access
issn 2169-3536
publishDate 2020-01-01
description This paper introduces a new three-phase two-level inverter based on the switched-capacitor voltage multiplier. By adding a voltage multiplier network at the DC side of the traditional three-phase inverter topology, the DC-link voltage of the introduced inverter is stepped up to triple of the input voltage. Compared to the existing solutions, the common-mode voltage of the introduced topology is kept constant. Moreover, the voltage stress across additional semiconductor components is the same as one-third of DC-link voltage. Operating principles, mathematical analysis, circuit analysis, and pulse-width modulation (PWM) method based on the Boolean logic function for introduced inverter are presented. A comparison of the introduced inverter with other inverter topologies is also reported. The simulation results are shown to verify the introduced three-phase triple voltage boost inverter. Besides that, a laboratory-built prototype is developed based on a DSP F280049C microcontroller and the corresponding experimental tests are provided to prove the introduced inverter.
topic Three-phase inverter
transformerless PV system
common-mode voltage
leakage current
switched-capacitor network
url https://ieeexplore.ieee.org/document/9193908/
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