DC-link voltages balance method for single-phase NPC inverter operating with reactive power compensation

Marco Fajardo; Julio Viola; Jose Manuel Aller; Flavio Quizhpi

doi:10.1109/COBEP/SPEC44138.2019.9065792

DC-link voltages balance method for single-phase NPC inverter operating with reactive power compensation

Marco Fajardo
, Julio Viola
, Jose Manuel Aller
, Flavio Quizhpi

Research Group in Energy (GIE)

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

5 Scopus citations

Abstract

Neutral point clamped (NPC) are one of the most used topologies for inverters in photovoltaic (PV) applications due to several operative advantages. The same hardware used for DC/AC conversion can be exploited to add reactive power compensation capabilities. In absence of PV generation (i.e. night hours) the DC link voltage have to be controlled by injecting or extracting active power to or from the DC link capacitors. While this technique is widely used in active power filters (APF) based on H-bridge inverters, the use of NPC inverters imposes a restriction due to potential imbalances in the voltages of DC-link capacitors, produced by DC components in the current of nonlinear loads being compensated. In this paper an analysis of DC currents effect is presented and an enabling method to allow reactive power compensation with single-phase NPC inverters is proposed and tested.

Original language	English
Title of host publication	2019 IEEE 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference, COBEP/SPEC 2019
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781728141800
DOIs	https://doi.org/10.1109/COBEP/SPEC44138.2019.9065792
State	Published - Dec 2019
Event	15th IEEE Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference, COBEP/SPEC 2019 - Santos, Brazil Duration: 1 Dec 2019 → 4 Dec 2019

Publication series

Name	2019 IEEE 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference, COBEP/SPEC 2019

Conference

Conference	15th IEEE Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference, COBEP/SPEC 2019
Country/Territory	Brazil
City	Santos
Period	1/12/19 → 4/12/19

Bibliographical note

Publisher Copyright:
© 2019 IEEE.

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

active power filter
grid connected inverter
neutral point clamped
reactive power compensation
single-phase systems

CACES Knowledge Areas

317A Electricity and Energy

Access to Document

10.1109/COBEP/SPEC44138.2019.9065792

Cite this

Fajardo, M., Viola, J., Aller, J. M., & Quizhpi, F. (2019). DC-link voltages balance method for single-phase NPC inverter operating with reactive power compensation. In 2019 IEEE 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference, COBEP/SPEC 2019 Article 9065792 (2019 IEEE 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference, COBEP/SPEC 2019). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/COBEP/SPEC44138.2019.9065792

Fajardo, Marco ; Viola, Julio ; Aller, Jose Manuel et al. / DC-link voltages balance method for single-phase NPC inverter operating with reactive power compensation. 2019 IEEE 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference, COBEP/SPEC 2019. Institute of Electrical and Electronics Engineers Inc., 2019. (2019 IEEE 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference, COBEP/SPEC 2019).

@inproceedings{5a673b6c4a1f4653904ebdf3071ae1f2,

title = "DC-link voltages balance method for single-phase NPC inverter operating with reactive power compensation",

abstract = "Neutral point clamped (NPC) are one of the most used topologies for inverters in photovoltaic (PV) applications due to several operative advantages. The same hardware used for DC/AC conversion can be exploited to add reactive power compensation capabilities. In absence of PV generation (i.e. night hours) the DC link voltage have to be controlled by injecting or extracting active power to or from the DC link capacitors. While this technique is widely used in active power filters (APF) based on H-bridge inverters, the use of NPC inverters imposes a restriction due to potential imbalances in the voltages of DC-link capacitors, produced by DC components in the current of nonlinear loads being compensated. In this paper an analysis of DC currents effect is presented and an enabling method to allow reactive power compensation with single-phase NPC inverters is proposed and tested.",

keywords = "active power filter, grid connected inverter, neutral point clamped, reactive power compensation, single-phase systems",

author = "Marco Fajardo and Julio Viola and Aller, \{Jose Manuel\} and Flavio Quizhpi",

note = "Publisher Copyright: {\textcopyright} 2019 IEEE.; 15th IEEE Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference, COBEP/SPEC 2019 ; Conference date: 01-12-2019 Through 04-12-2019",

year = "2019",

month = dec,

doi = "10.1109/COBEP/SPEC44138.2019.9065792",

language = "English",

series = "2019 IEEE 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference, COBEP/SPEC 2019",

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

booktitle = "2019 IEEE 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference, COBEP/SPEC 2019",

address = "United States",

}

Fajardo, M, Viola, J, Aller, JM & Quizhpi, F 2019, DC-link voltages balance method for single-phase NPC inverter operating with reactive power compensation. in 2019 IEEE 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference, COBEP/SPEC 2019., 9065792, 2019 IEEE 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference, COBEP/SPEC 2019, Institute of Electrical and Electronics Engineers Inc., 15th IEEE Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference, COBEP/SPEC 2019, Santos, Brazil, 1/12/19. https://doi.org/10.1109/COBEP/SPEC44138.2019.9065792

DC-link voltages balance method for single-phase NPC inverter operating with reactive power compensation. / Fajardo, Marco; Viola, Julio; Aller, Jose Manuel et al.
2019 IEEE 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference, COBEP/SPEC 2019. Institute of Electrical and Electronics Engineers Inc., 2019. 9065792 (2019 IEEE 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference, COBEP/SPEC 2019).

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

TY - GEN

T1 - DC-link voltages balance method for single-phase NPC inverter operating with reactive power compensation

AU - Fajardo, Marco

AU - Viola, Julio

AU - Aller, Jose Manuel

AU - Quizhpi, Flavio

PY - 2019/12

Y1 - 2019/12

N2 - Neutral point clamped (NPC) are one of the most used topologies for inverters in photovoltaic (PV) applications due to several operative advantages. The same hardware used for DC/AC conversion can be exploited to add reactive power compensation capabilities. In absence of PV generation (i.e. night hours) the DC link voltage have to be controlled by injecting or extracting active power to or from the DC link capacitors. While this technique is widely used in active power filters (APF) based on H-bridge inverters, the use of NPC inverters imposes a restriction due to potential imbalances in the voltages of DC-link capacitors, produced by DC components in the current of nonlinear loads being compensated. In this paper an analysis of DC currents effect is presented and an enabling method to allow reactive power compensation with single-phase NPC inverters is proposed and tested.

AB - Neutral point clamped (NPC) are one of the most used topologies for inverters in photovoltaic (PV) applications due to several operative advantages. The same hardware used for DC/AC conversion can be exploited to add reactive power compensation capabilities. In absence of PV generation (i.e. night hours) the DC link voltage have to be controlled by injecting or extracting active power to or from the DC link capacitors. While this technique is widely used in active power filters (APF) based on H-bridge inverters, the use of NPC inverters imposes a restriction due to potential imbalances in the voltages of DC-link capacitors, produced by DC components in the current of nonlinear loads being compensated. In this paper an analysis of DC currents effect is presented and an enabling method to allow reactive power compensation with single-phase NPC inverters is proposed and tested.

KW - active power filter

KW - grid connected inverter

KW - neutral point clamped

KW - reactive power compensation

KW - single-phase systems

UR - https://www.scopus.com/pages/publications/85084927609

U2 - 10.1109/COBEP/SPEC44138.2019.9065792

DO - 10.1109/COBEP/SPEC44138.2019.9065792

M3 - Conference contribution

AN - SCOPUS:85084927609

T3 - 2019 IEEE 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference, COBEP/SPEC 2019

BT - 2019 IEEE 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference, COBEP/SPEC 2019

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 15th IEEE Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference, COBEP/SPEC 2019

Y2 - 1 December 2019 through 4 December 2019

ER -

Fajardo M, Viola J, Aller JM , Quizhpi F. DC-link voltages balance method for single-phase NPC inverter operating with reactive power compensation. In 2019 IEEE 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference, COBEP/SPEC 2019. Institute of Electrical and Electronics Engineers Inc. 2019. 9065792. (2019 IEEE 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference, COBEP/SPEC 2019). doi: 10.1109/COBEP/SPEC44138.2019.9065792

DC-link voltages balance method for single-phase NPC inverter operating with reactive power compensation

Abstract

Publication series

Conference

Bibliographical note

UN SDGs

Keywords

CACES Knowledge Areas

Access to Document

Other files and links

Fingerprint

Cite this