Cascaded H-bridge multilevel converter multistring topology for large scale photovoltaic systems

S. Rivera, S. Kouro, B. Wu, J. I. Leon, J. Rodríiguez, L. G. Franquelo

Resultado de la investigación: Conference contribution

152 Citas (Scopus)

Resumen

Large scale grid connected photovoltaic (PV) energy conversion systems have reached the megawatt level. This imposes new challenges on existing grid interface converter topologies and opens new opportunities to be explored. In this paper a new medium voltage multilevel-multistring configuration is introduced based on a three-phase cascaded H-bridge (CHB) converter and multiple string dc-dc converters. The proposed configuration enables a large increase of the total capacity of the PV system, while improving power quality and efficiency. The converter structure is very flexible and modular since it decouples the grid converter from the PV string converter, which allows to accomplish independent control goals. The main challenge of the proposed configuration is to handle the inherent power imbalances that occur not only between the different cells of one phase of the converter but also between the three phases. The control strategy to deal with these imbalances is also introduced in this paper. Simulation results of a 7-level CHB for a multistring PV system are presented to validate the proposed topology and control method.

Idioma originalEnglish
Título de la publicación alojadaProceedings - ISIE 2011
Subtítulo de la publicación alojada2011 IEEE International Symposium on Industrial Electronics
Páginas1837-1844
Número de páginas8
DOI
EstadoPublished - 2011
Evento2011 IEEE International Symposium on Industrial Electronics, ISIE 2011 - Gdansk, Poland
Duración: 27 jun 201130 jun 2011

Other

Other2011 IEEE International Symposium on Industrial Electronics, ISIE 2011
PaísPoland
CiudadGdansk
Período27/06/1130/06/11

Huella dactilar

Topology
Power quality
Energy conversion
Electric potential

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Industrial and Manufacturing Engineering

Citar esto

Rivera, S., Kouro, S., Wu, B., Leon, J. I., Rodríiguez, J., & Franquelo, L. G. (2011). Cascaded H-bridge multilevel converter multistring topology for large scale photovoltaic systems. En Proceedings - ISIE 2011: 2011 IEEE International Symposium on Industrial Electronics (pp. 1837-1844). [5984437] https://doi.org/10.1109/ISIE.2011.5984437
Rivera, S. ; Kouro, S. ; Wu, B. ; Leon, J. I. ; Rodríiguez, J. ; Franquelo, L. G. / Cascaded H-bridge multilevel converter multistring topology for large scale photovoltaic systems. Proceedings - ISIE 2011: 2011 IEEE International Symposium on Industrial Electronics. 2011. pp. 1837-1844
@inproceedings{3cad5ac75ef04d06a8e5882f08148e0e,
title = "Cascaded H-bridge multilevel converter multistring topology for large scale photovoltaic systems",
abstract = "Large scale grid connected photovoltaic (PV) energy conversion systems have reached the megawatt level. This imposes new challenges on existing grid interface converter topologies and opens new opportunities to be explored. In this paper a new medium voltage multilevel-multistring configuration is introduced based on a three-phase cascaded H-bridge (CHB) converter and multiple string dc-dc converters. The proposed configuration enables a large increase of the total capacity of the PV system, while improving power quality and efficiency. The converter structure is very flexible and modular since it decouples the grid converter from the PV string converter, which allows to accomplish independent control goals. The main challenge of the proposed configuration is to handle the inherent power imbalances that occur not only between the different cells of one phase of the converter but also between the three phases. The control strategy to deal with these imbalances is also introduced in this paper. Simulation results of a 7-level CHB for a multistring PV system are presented to validate the proposed topology and control method.",
author = "S. Rivera and S. Kouro and B. Wu and Leon, {J. I.} and J. Rodr{\'i}iguez and Franquelo, {L. G.}",
year = "2011",
doi = "10.1109/ISIE.2011.5984437",
language = "English",
isbn = "9781424493128",
pages = "1837--1844",
booktitle = "Proceedings - ISIE 2011",

}

Rivera, S, Kouro, S, Wu, B, Leon, JI, Rodríiguez, J & Franquelo, LG 2011, Cascaded H-bridge multilevel converter multistring topology for large scale photovoltaic systems. En Proceedings - ISIE 2011: 2011 IEEE International Symposium on Industrial Electronics., 5984437, pp. 1837-1844, 2011 IEEE International Symposium on Industrial Electronics, ISIE 2011, Gdansk, Poland, 27/06/11. https://doi.org/10.1109/ISIE.2011.5984437

Cascaded H-bridge multilevel converter multistring topology for large scale photovoltaic systems. / Rivera, S.; Kouro, S.; Wu, B.; Leon, J. I.; Rodríiguez, J.; Franquelo, L. G.

Proceedings - ISIE 2011: 2011 IEEE International Symposium on Industrial Electronics. 2011. p. 1837-1844 5984437.

Resultado de la investigación: Conference contribution

TY - GEN

T1 - Cascaded H-bridge multilevel converter multistring topology for large scale photovoltaic systems

AU - Rivera, S.

AU - Kouro, S.

AU - Wu, B.

AU - Leon, J. I.

AU - Rodríiguez, J.

AU - Franquelo, L. G.

PY - 2011

Y1 - 2011

N2 - Large scale grid connected photovoltaic (PV) energy conversion systems have reached the megawatt level. This imposes new challenges on existing grid interface converter topologies and opens new opportunities to be explored. In this paper a new medium voltage multilevel-multistring configuration is introduced based on a three-phase cascaded H-bridge (CHB) converter and multiple string dc-dc converters. The proposed configuration enables a large increase of the total capacity of the PV system, while improving power quality and efficiency. The converter structure is very flexible and modular since it decouples the grid converter from the PV string converter, which allows to accomplish independent control goals. The main challenge of the proposed configuration is to handle the inherent power imbalances that occur not only between the different cells of one phase of the converter but also between the three phases. The control strategy to deal with these imbalances is also introduced in this paper. Simulation results of a 7-level CHB for a multistring PV system are presented to validate the proposed topology and control method.

AB - Large scale grid connected photovoltaic (PV) energy conversion systems have reached the megawatt level. This imposes new challenges on existing grid interface converter topologies and opens new opportunities to be explored. In this paper a new medium voltage multilevel-multistring configuration is introduced based on a three-phase cascaded H-bridge (CHB) converter and multiple string dc-dc converters. The proposed configuration enables a large increase of the total capacity of the PV system, while improving power quality and efficiency. The converter structure is very flexible and modular since it decouples the grid converter from the PV string converter, which allows to accomplish independent control goals. The main challenge of the proposed configuration is to handle the inherent power imbalances that occur not only between the different cells of one phase of the converter but also between the three phases. The control strategy to deal with these imbalances is also introduced in this paper. Simulation results of a 7-level CHB for a multistring PV system are presented to validate the proposed topology and control method.

UR - http://www.scopus.com/inward/record.url?scp=80052843071&partnerID=8YFLogxK

U2 - 10.1109/ISIE.2011.5984437

DO - 10.1109/ISIE.2011.5984437

M3 - Conference contribution

AN - SCOPUS:80052843071

SN - 9781424493128

SP - 1837

EP - 1844

BT - Proceedings - ISIE 2011

ER -

Rivera S, Kouro S, Wu B, Leon JI, Rodríiguez J, Franquelo LG. Cascaded H-bridge multilevel converter multistring topology for large scale photovoltaic systems. En Proceedings - ISIE 2011: 2011 IEEE International Symposium on Industrial Electronics. 2011. p. 1837-1844. 5984437 https://doi.org/10.1109/ISIE.2011.5984437