Delta-CHB STATCOM with reduced energy storage requirements based on third harmonic injection

Dayane Do Carmo Mendonca; Joao Marcus Soares Callegari; Allan Fagner Cupertino; Heverton Augusto Pereira; Seleme Isaac Seleme Junior; Remus Teodorescu

doi:10.1109/COBEP53665.2021.9684088

Delta-CHB STATCOM with reduced energy storage requirements based on third harmonic injection

Dayane Do Carmo Mendonca, Joao Marcus Soares Callegari, Allan Fagner Cupertino, Heverton Augusto Pereira, Seleme Isaac Seleme Junior, Remus Teodorescu

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

2 Citations (Scopus)

Abstract

The delta connected cascade H-Bridge converter (Delta-HUB) has emerged as an interesting topology for STATCOM applications. A drawback of this topology is the low-frequency ripple in the sub module voltage that leads to high energy storage requirements. Due to the inherent characteristic of Delta-HUB topology, the zero sequence components present in the circulating current do not flow into the grid. This work aims to explore the third harmonic circulating current injection to minimize energy storage requirements, since this method changes the shape of the capacitor voltage waveform. Initially, the expression of the sum of the capacitor voltages is analytically derived. Then, the third harmonic injection is evaluated based on 17 MVA/13.8 kV Delta-HUB case study with 24 cells per cluster. Also, the methodology was evaluated with an experimental setup based on 500 VA/220 V submodule. The results indicate a reduction in the capacitor voltage ripple of 26.64% and 62.10%, when the converter is injecting and absorbing nominal reactive power from the grid, respectively.

Original language	English
Title of host publication	2021 Brazilian Power Electronics Conference, COBEP 2021
Publisher	IEEE
Publication date	2021
Article number	9684088
ISBN (Print)	978-1-6654-2130-0
ISBN (Electronic)	978-1-6654-2129-4
DOIs	https://doi.org/10.1109/COBEP53665.2021.9684088
Publication status	Published - 2021
Event	16th Brazilian Power Electronics Conference, COBEP 2021 - Joao Pessoa, Brazil Duration: 7 Nov 2021 → 10 Nov 2021

Conference

Conference	16th Brazilian Power Electronics Conference, COBEP 2021
Country/Territory	Brazil
City	Joao Pessoa
Period	07/11/2021 → 10/11/2021
Sponsor	Alsol, CNPq, et al., Keysight, Rota2030 Linha V FUNDEP, Semikron

Series	Brazilian Power Electronics Conference and Southern Power Electronics Conference (COBEP/SPEC)
ISSN	2643-9778

Bibliographical note

Funding Information:
This study was supported in part by the Coordenac¸ão de Aperfeic¸oamento de Pessoal de Nível Superior - Brazil (CAPES) - Finance Code 001, in part by CNPq and part by FAPEMIG.

Publisher Copyright:
© 2021 IEEE.

Keywords

capacitor voltage
circulating current
Delta-HUB
energy storage requirements
STATCOM
third harmonic

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10.1109/COBEP53665.2021.9684088

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Cite this

@inproceedings{7dde1bd3b9ef477b95de2d9eadb6bbda,

title = "Delta-CHB STATCOM with reduced energy storage requirements based on third harmonic injection",

abstract = "The delta connected cascade H-Bridge converter (Delta-HUB) has emerged as an interesting topology for STATCOM applications. A drawback of this topology is the low-frequency ripple in the sub module voltage that leads to high energy storage requirements. Due to the inherent characteristic of Delta-HUB topology, the zero sequence components present in the circulating current do not flow into the grid. This work aims to explore the third harmonic circulating current injection to minimize energy storage requirements, since this method changes the shape of the capacitor voltage waveform. Initially, the expression of the sum of the capacitor voltages is analytically derived. Then, the third harmonic injection is evaluated based on 17 MVA/13.8 kV Delta-HUB case study with 24 cells per cluster. Also, the methodology was evaluated with an experimental setup based on 500 VA/220 V submodule. The results indicate a reduction in the capacitor voltage ripple of 26.64% and 62.10%, when the converter is injecting and absorbing nominal reactive power from the grid, respectively.",

keywords = "capacitor voltage, circulating current, Delta-HUB, energy storage requirements, STATCOM, third harmonic",

author = "{Carmo Mendonca}, {Dayane Do} and {Soares Callegari}, {Joao Marcus} and Cupertino, {Allan Fagner} and Pereira, {Heverton Augusto} and {Seleme Junior}, {Seleme Isaac} and Remus Teodorescu",

note = "Funding Information: This study was supported in part by the Coordenac¸{\~a}o de Aperfeic¸oamento de Pessoal de N{\'i}vel Superior - Brazil (CAPES) - Finance Code 001, in part by CNPq and part by FAPEMIG. Publisher Copyright: {\textcopyright} 2021 IEEE.; 16th Brazilian Power Electronics Conference, COBEP 2021 ; Conference date: 07-11-2021 Through 10-11-2021",

year = "2021",

doi = "10.1109/COBEP53665.2021.9684088",

language = "English",

isbn = "978-1-6654-2130-0",

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Carmo Mendonca, DD, Soares Callegari, JM, Cupertino, AF, Pereira, HA, Seleme Junior, SI & Teodorescu, R 2021, Delta-CHB STATCOM with reduced energy storage requirements based on third harmonic injection. in 2021 Brazilian Power Electronics Conference, COBEP 2021., 9684088, IEEE, Brazilian Power Electronics Conference and Southern Power Electronics Conference (COBEP/SPEC), 16th Brazilian Power Electronics Conference, COBEP 2021, Joao Pessoa, Brazil, 07/11/2021. https://doi.org/10.1109/COBEP53665.2021.9684088

Delta-CHB STATCOM with reduced energy storage requirements based on third harmonic injection. / Carmo Mendonca, Dayane Do; Soares Callegari, Joao Marcus; Cupertino, Allan Fagner et al.
2021 Brazilian Power Electronics Conference, COBEP 2021. IEEE, 2021. 9684088 (Brazilian Power Electronics Conference and Southern Power Electronics Conference (COBEP/SPEC)).

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

TY - GEN

T1 - Delta-CHB STATCOM with reduced energy storage requirements based on third harmonic injection

AU - Carmo Mendonca, Dayane Do

AU - Soares Callegari, Joao Marcus

AU - Cupertino, Allan Fagner

AU - Pereira, Heverton Augusto

AU - Seleme Junior, Seleme Isaac

AU - Teodorescu, Remus

N1 - Funding Information: This study was supported in part by the Coordenac¸ão de Aperfeic¸oamento de Pessoal de Nível Superior - Brazil (CAPES) - Finance Code 001, in part by CNPq and part by FAPEMIG. Publisher Copyright: © 2021 IEEE.

PY - 2021

Y1 - 2021

N2 - The delta connected cascade H-Bridge converter (Delta-HUB) has emerged as an interesting topology for STATCOM applications. A drawback of this topology is the low-frequency ripple in the sub module voltage that leads to high energy storage requirements. Due to the inherent characteristic of Delta-HUB topology, the zero sequence components present in the circulating current do not flow into the grid. This work aims to explore the third harmonic circulating current injection to minimize energy storage requirements, since this method changes the shape of the capacitor voltage waveform. Initially, the expression of the sum of the capacitor voltages is analytically derived. Then, the third harmonic injection is evaluated based on 17 MVA/13.8 kV Delta-HUB case study with 24 cells per cluster. Also, the methodology was evaluated with an experimental setup based on 500 VA/220 V submodule. The results indicate a reduction in the capacitor voltage ripple of 26.64% and 62.10%, when the converter is injecting and absorbing nominal reactive power from the grid, respectively.

AB - The delta connected cascade H-Bridge converter (Delta-HUB) has emerged as an interesting topology for STATCOM applications. A drawback of this topology is the low-frequency ripple in the sub module voltage that leads to high energy storage requirements. Due to the inherent characteristic of Delta-HUB topology, the zero sequence components present in the circulating current do not flow into the grid. This work aims to explore the third harmonic circulating current injection to minimize energy storage requirements, since this method changes the shape of the capacitor voltage waveform. Initially, the expression of the sum of the capacitor voltages is analytically derived. Then, the third harmonic injection is evaluated based on 17 MVA/13.8 kV Delta-HUB case study with 24 cells per cluster. Also, the methodology was evaluated with an experimental setup based on 500 VA/220 V submodule. The results indicate a reduction in the capacitor voltage ripple of 26.64% and 62.10%, when the converter is injecting and absorbing nominal reactive power from the grid, respectively.

KW - capacitor voltage

KW - circulating current

KW - Delta-HUB

KW - energy storage requirements

KW - STATCOM

KW - third harmonic

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U2 - 10.1109/COBEP53665.2021.9684088

DO - 10.1109/COBEP53665.2021.9684088

M3 - Article in proceeding

AN - SCOPUS:85125734772

SN - 978-1-6654-2130-0

T3 - Brazilian Power Electronics Conference and Southern Power Electronics Conference (COBEP/SPEC)

BT - 2021 Brazilian Power Electronics Conference, COBEP 2021

PB - IEEE

T2 - 16th Brazilian Power Electronics Conference, COBEP 2021

Y2 - 7 November 2021 through 10 November 2021

ER -

Carmo Mendonca DD, Soares Callegari JM, Cupertino AF, Pereira HA, Seleme Junior SI, Teodorescu R. Delta-CHB STATCOM with reduced energy storage requirements based on third harmonic injection. In 2021 Brazilian Power Electronics Conference, COBEP 2021. IEEE. 2021. 9684088. (Brazilian Power Electronics Conference and Southern Power Electronics Conference (COBEP/SPEC)). doi: 10.1109/COBEP53665.2021.9684088

Delta-CHB STATCOM with reduced energy storage requirements based on third harmonic injection

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Bibliographical note

Keywords

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