A New 5-level Grid-Connected Transformerless Inverter with Eliminating Leakage Current

Bagher Karami; Xu Yang; Mehdi Samizadeh; Wenjie Chen; Majid Kamranian; Alaaeldin Hassan; Mohamad Abou Houran

doi:10.1109/IPEMC-ECCEAsia48364.2020.9367920

A New 5-level Grid-Connected Transformerless Inverter with Eliminating Leakage Current

Bagher Karami
, Xu Yang
, Mehdi Samizadeh
, Wenjie Chen
, Majid Kamranian
, Alaaeldin Hassan
, Mohamad Abou Houran

Xi’an iaotong University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Scopus citations

Abstract

This paper proposes a novel single-phase transformerless 5-level inverter for grid-connected photovoltaic (PV) system. The main advantages of the proposed inverter are 1) By direct connecting the neutral point of the grid to the negative terminal of the PV, this inverter can eliminate the leakage current; 2) It can boost the input voltage; 3) It does not suffer from the current spike. 4) This inverter has an excellent capacity to conduct the reverse current as well as an acceptable output waveform spectrum. The first stage of the proposed circuit consists of two inductance, which makes a boost or buck-boost converter in each half-cycle. Therefore, the capacitor of the converter circuit can be used as the virtual dc source in the inverter stage, which decreases the size and cost of the proposed inverter. Some simulation results by using MATLAB/SIMULINK software are shown to demonstrate the efficacy of the proposed circuit.

Original language	English
Title of host publication	2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	454-459
Number of pages	6
ISBN (Electronic)	9781728153018
DOIs	https://doi.org/10.1109/IPEMC-ECCEAsia48364.2020.9367920
State	Published - 29 Nov 2020
Externally published	Yes
Event	9th IEEE International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia - Nanjing, China Duration: 29 Nov 2020 → 2 Dec 2020

Publication series

Name	2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia

Conference

Conference	9th IEEE International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia
Country/Territory	China
City	Nanjing
Period	29/11/20 → 2/12/20

Keywords

Multilevel inverter
SPWM modulation technique
common mode voltage
leakage current
switched capacitor

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1109/IPEMC-ECCEAsia48364.2020.9367920

Cite this

Karami, B., Yang, X., Samizadeh, M., Chen, W., Kamranian, M., Hassan, A., & Houran, M. A. (2020). A New 5-level Grid-Connected Transformerless Inverter with Eliminating Leakage Current. In 2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia (pp. 454-459). Article 9367920 (2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IPEMC-ECCEAsia48364.2020.9367920

Karami, Bagher ; Yang, Xu ; Samizadeh, Mehdi et al. / A New 5-level Grid-Connected Transformerless Inverter with Eliminating Leakage Current. 2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia. Institute of Electrical and Electronics Engineers Inc., 2020. pp. 454-459 (2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia).

@inproceedings{61664af702e74f31a7c94e1b35bd733a,

title = "A New 5-level Grid-Connected Transformerless Inverter with Eliminating Leakage Current",

abstract = "This paper proposes a novel single-phase transformerless 5-level inverter for grid-connected photovoltaic (PV) system. The main advantages of the proposed inverter are 1) By direct connecting the neutral point of the grid to the negative terminal of the PV, this inverter can eliminate the leakage current; 2) It can boost the input voltage; 3) It does not suffer from the current spike. 4) This inverter has an excellent capacity to conduct the reverse current as well as an acceptable output waveform spectrum. The first stage of the proposed circuit consists of two inductance, which makes a boost or buck-boost converter in each half-cycle. Therefore, the capacitor of the converter circuit can be used as the virtual dc source in the inverter stage, which decreases the size and cost of the proposed inverter. Some simulation results by using MATLAB/SIMULINK software are shown to demonstrate the efficacy of the proposed circuit.",

keywords = "Multilevel inverter, SPWM modulation technique, common mode voltage, leakage current, switched capacitor",

author = "Bagher Karami and Xu Yang and Mehdi Samizadeh and Wenjie Chen and Majid Kamranian and Alaaeldin Hassan and Houran, \{Mohamad Abou\}",

note = "Publisher Copyright: {\textcopyright} 2020 IEEE.; 9th IEEE International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia ; Conference date: 29-11-2020 Through 02-12-2020",

year = "2020",

month = nov,

day = "29",

doi = "10.1109/IPEMC-ECCEAsia48364.2020.9367920",

language = "英语",

series = "2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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}

Karami, B, Yang, X, Samizadeh, M, Chen, W, Kamranian, M, Hassan, A & Houran, MA 2020, A New 5-level Grid-Connected Transformerless Inverter with Eliminating Leakage Current. in 2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia., 9367920, 2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia, Institute of Electrical and Electronics Engineers Inc., pp. 454-459, 9th IEEE International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia, Nanjing, China, 29/11/20. https://doi.org/10.1109/IPEMC-ECCEAsia48364.2020.9367920

A New 5-level Grid-Connected Transformerless Inverter with Eliminating Leakage Current. / Karami, Bagher; Yang, Xu; Samizadeh, Mehdi et al.
2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia. Institute of Electrical and Electronics Engineers Inc., 2020. p. 454-459 9367920 (2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

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AU - Karami, Bagher

AU - Yang, Xu

AU - Samizadeh, Mehdi

AU - Chen, Wenjie

AU - Kamranian, Majid

AU - Hassan, Alaaeldin

AU - Houran, Mohamad Abou

PY - 2020/11/29

Y1 - 2020/11/29

N2 - This paper proposes a novel single-phase transformerless 5-level inverter for grid-connected photovoltaic (PV) system. The main advantages of the proposed inverter are 1) By direct connecting the neutral point of the grid to the negative terminal of the PV, this inverter can eliminate the leakage current; 2) It can boost the input voltage; 3) It does not suffer from the current spike. 4) This inverter has an excellent capacity to conduct the reverse current as well as an acceptable output waveform spectrum. The first stage of the proposed circuit consists of two inductance, which makes a boost or buck-boost converter in each half-cycle. Therefore, the capacitor of the converter circuit can be used as the virtual dc source in the inverter stage, which decreases the size and cost of the proposed inverter. Some simulation results by using MATLAB/SIMULINK software are shown to demonstrate the efficacy of the proposed circuit.

AB - This paper proposes a novel single-phase transformerless 5-level inverter for grid-connected photovoltaic (PV) system. The main advantages of the proposed inverter are 1) By direct connecting the neutral point of the grid to the negative terminal of the PV, this inverter can eliminate the leakage current; 2) It can boost the input voltage; 3) It does not suffer from the current spike. 4) This inverter has an excellent capacity to conduct the reverse current as well as an acceptable output waveform spectrum. The first stage of the proposed circuit consists of two inductance, which makes a boost or buck-boost converter in each half-cycle. Therefore, the capacitor of the converter circuit can be used as the virtual dc source in the inverter stage, which decreases the size and cost of the proposed inverter. Some simulation results by using MATLAB/SIMULINK software are shown to demonstrate the efficacy of the proposed circuit.

KW - Multilevel inverter

KW - SPWM modulation technique

KW - common mode voltage

KW - leakage current

KW - switched capacitor

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DO - 10.1109/IPEMC-ECCEAsia48364.2020.9367920

M3 - 会议稿件

AN - SCOPUS:85103208029

T3 - 2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia

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BT - 2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 9th IEEE International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia

Y2 - 29 November 2020 through 2 December 2020

ER -

Karami B, Yang X, Samizadeh M, Chen W, Kamranian M, Hassan A et al. A New 5-level Grid-Connected Transformerless Inverter with Eliminating Leakage Current. In 2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia. Institute of Electrical and Electronics Engineers Inc. 2020. p. 454-459. 9367920. (2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia). doi: 10.1109/IPEMC-ECCEAsia48364.2020.9367920

A New 5-level Grid-Connected Transformerless Inverter with Eliminating Leakage Current

Abstract

Publication series

Conference

Keywords

UN SDGs

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