Voltage Boosting Technique for Switched Capacitor Based Cascaded H-Bridge Multilevel Inverter

Tala Hemmati; Hossein Khoun Jahan; Yaghoub Ghorbanalizadeh Maralani; Mehran Sabahi; Mehdi Abapour; Frede Blaabjerg

doi:10.1109/PEDSTC49159.2020.9088494

Voltage Boosting Technique for Switched Capacitor Based Cascaded H-Bridge Multilevel Inverter

Tala Hemmati, Hossein Khoun Jahan, Yaghoub Ghorbanalizadeh Maralani, Mehran Sabahi, Mehdi Abapour, Frede Blaabjerg

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

9 Citations (Scopus)

Abstract

Cascaded Multilevel Inverter (CMI) in photovoltaic (PV) systems calls for separated PV modules in each H-bridge cell. In turn, each PV module requires a dc-dc converter to make the MPPT process easier. Thus, the CMI in PV systems requires a complicated control system to control the isolated dc sources. Since the switched capacitor-based CMI (SC-CMI) needs only one dc source, it can be a suitable inverter for PV systems. In this inverter the capacitors are charged through the dc source and a charging circuit. However, the main problem in this inverter is voltage reduction under heavy loads. To tackle the issue, this paper proposes a voltage boosting technique for the SC-CMI with PV systems, which considerably increases the voltage gain. In the proposed system, the capacitors are all charged through one dc source, so only one controlling mechanism is needed to control the dc link. Simulation and experimental outcomes are provided to prove the effectiveness of the suggested circuit.

Original language	English
Title of host publication	Proceedings of the 2020 11th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)
Number of pages	6
Place of Publication	Iran
Publisher	IEEE Press
Publication date	May 2020
Pages	1-6
Article number	9088494
ISBN (Print)	978-1-7281-5850-1
ISBN (Electronic)	978-1-7281-5849-5
DOIs	https://doi.org/10.1109/PEDSTC49159.2020.9088494
Publication status	Published - May 2020
Event	11th Power Electronics, Drive Systems, and Technologies Conference, PEDSTC 2020 - Tehran, Iran, Islamic Republic of Duration: 4 Feb 2020 → 6 Feb 2020

Conference

Conference	11th Power Electronics, Drive Systems, and Technologies Conference, PEDSTC 2020
Country/Territory	Iran, Islamic Republic of
City	Tehran
Period	04/02/2020 → 06/02/2020

Keywords

Multilevel Inverter
Switched-Capacitor cell
Voltage boosting technique

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10.1109/PEDSTC49159.2020.9088494

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Hemmati, T., Khoun Jahan, H., Maralani, Y. G., Sabahi, M., Abapour, M., & Blaabjerg, F. (2020). Voltage Boosting Technique for Switched Capacitor Based Cascaded H-Bridge Multilevel Inverter. In Proceedings of the 2020 11th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC) (pp. 1-6). Article 9088494 IEEE Press. https://doi.org/10.1109/PEDSTC49159.2020.9088494

@inproceedings{b654975fb143469f8e4431354416f4a9,

title = "Voltage Boosting Technique for Switched Capacitor Based Cascaded H-Bridge Multilevel Inverter",

abstract = "Cascaded Multilevel Inverter (CMI) in photovoltaic (PV) systems calls for separated PV modules in each H-bridge cell. In turn, each PV module requires a dc-dc converter to make the MPPT process easier. Thus, the CMI in PV systems requires a complicated control system to control the isolated dc sources. Since the switched capacitor-based CMI (SC-CMI) needs only one dc source, it can be a suitable inverter for PV systems. In this inverter the capacitors are charged through the dc source and a charging circuit. However, the main problem in this inverter is voltage reduction under heavy loads. To tackle the issue, this paper proposes a voltage boosting technique for the SC-CMI with PV systems, which considerably increases the voltage gain. In the proposed system, the capacitors are all charged through one dc source, so only one controlling mechanism is needed to control the dc link. Simulation and experimental outcomes are provided to prove the effectiveness of the suggested circuit.",

keywords = "Multilevel Inverter, Switched-Capacitor cell, Voltage boosting technique",

author = "Tala Hemmati and {Khoun Jahan}, Hossein and Maralani, {Yaghoub Ghorbanalizadeh} and Mehran Sabahi and Mehdi Abapour and Frede Blaabjerg",

year = "2020",

month = may,

doi = "10.1109/PEDSTC49159.2020.9088494",

language = "English",

isbn = "978-1-7281-5850-1",

pages = "1--6",

booktitle = "Proceedings of the 2020 11th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)",

publisher = "IEEE Press",

note = "11th Power Electronics, Drive Systems, and Technologies Conference, PEDSTC 2020 ; Conference date: 04-02-2020 Through 06-02-2020",

}

Hemmati, T, Khoun Jahan, H, Maralani, YG, Sabahi, M, Abapour, M & Blaabjerg, F 2020, Voltage Boosting Technique for Switched Capacitor Based Cascaded H-Bridge Multilevel Inverter. in Proceedings of the 2020 11th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)., 9088494, IEEE Press, Iran, pp. 1-6, 11th Power Electronics, Drive Systems, and Technologies Conference, PEDSTC 2020, Tehran, Iran, Islamic Republic of, 04/02/2020. https://doi.org/10.1109/PEDSTC49159.2020.9088494

Voltage Boosting Technique for Switched Capacitor Based Cascaded H-Bridge Multilevel Inverter. / Hemmati, Tala; Khoun Jahan, Hossein; Maralani, Yaghoub Ghorbanalizadeh et al.
Proceedings of the 2020 11th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC). Iran: IEEE Press, 2020. p. 1-6 9088494.

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

TY - GEN

T1 - Voltage Boosting Technique for Switched Capacitor Based Cascaded H-Bridge Multilevel Inverter

AU - Hemmati, Tala

AU - Khoun Jahan, Hossein

AU - Maralani, Yaghoub Ghorbanalizadeh

AU - Sabahi, Mehran

AU - Abapour, Mehdi

AU - Blaabjerg, Frede

PY - 2020/5

Y1 - 2020/5

N2 - Cascaded Multilevel Inverter (CMI) in photovoltaic (PV) systems calls for separated PV modules in each H-bridge cell. In turn, each PV module requires a dc-dc converter to make the MPPT process easier. Thus, the CMI in PV systems requires a complicated control system to control the isolated dc sources. Since the switched capacitor-based CMI (SC-CMI) needs only one dc source, it can be a suitable inverter for PV systems. In this inverter the capacitors are charged through the dc source and a charging circuit. However, the main problem in this inverter is voltage reduction under heavy loads. To tackle the issue, this paper proposes a voltage boosting technique for the SC-CMI with PV systems, which considerably increases the voltage gain. In the proposed system, the capacitors are all charged through one dc source, so only one controlling mechanism is needed to control the dc link. Simulation and experimental outcomes are provided to prove the effectiveness of the suggested circuit.

AB - Cascaded Multilevel Inverter (CMI) in photovoltaic (PV) systems calls for separated PV modules in each H-bridge cell. In turn, each PV module requires a dc-dc converter to make the MPPT process easier. Thus, the CMI in PV systems requires a complicated control system to control the isolated dc sources. Since the switched capacitor-based CMI (SC-CMI) needs only one dc source, it can be a suitable inverter for PV systems. In this inverter the capacitors are charged through the dc source and a charging circuit. However, the main problem in this inverter is voltage reduction under heavy loads. To tackle the issue, this paper proposes a voltage boosting technique for the SC-CMI with PV systems, which considerably increases the voltage gain. In the proposed system, the capacitors are all charged through one dc source, so only one controlling mechanism is needed to control the dc link. Simulation and experimental outcomes are provided to prove the effectiveness of the suggested circuit.

KW - Multilevel Inverter

KW - Switched-Capacitor cell

KW - Voltage boosting technique

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U2 - 10.1109/PEDSTC49159.2020.9088494

DO - 10.1109/PEDSTC49159.2020.9088494

M3 - Article in proceeding

SN - 978-1-7281-5850-1

SP - 1

EP - 6

BT - Proceedings of the 2020 11th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)

PB - IEEE Press

CY - Iran

T2 - 11th Power Electronics, Drive Systems, and Technologies Conference, PEDSTC 2020

Y2 - 4 February 2020 through 6 February 2020

ER -

Voltage Boosting Technique for Switched Capacitor Based Cascaded H-Bridge Multilevel Inverter

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