Low-voltage ride-through capability of full-row connected cascaded H-bridge converters

Hossein Dehghani Tafti; Ali Iftekhar Maswood; Georgios Konstantinou; Josep Pou; Christopher D. Townsend

doi:10.1109/TENCON.2016.7848152

Low-voltage ride-through capability of full-row connected cascaded H-bridge converters

Hossein Dehghani Tafti, Ali Iftekhar Maswood, Georgios Konstantinou, Josep Pou, Christopher D. Townsend

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

7 Citations (Scopus)

Abstract

The full-row connection of dc-links provides an alternative configuration for the cascaded H-bridge (CHB) converter in large-scale grid-connected photovoltaic systems. In each stage, a single PV string is connected to all phases through isolated dc/dc converters. The per-phase power imbalance issue and second-harmonic voltage of the dc-link capacitors are alleviated by using this topology. This paper studies the low-voltage ride-through (LVRT) capability of the HB inverter with full-row connection in a grid-connected photovoltaic power plant (GCPVPP). A control algorithm is implemented for the isolated dc/dc converters which balances the capacitor voltages during voltage sags and reduces the second-harmonic voltage ripple of the dc-link capacitors. The performance of the grid-connected HB inverter with LVRT capability is investigated on a 3-MVA single-row, three-level CHB converter for the GCPVPP connected to a 6.6 kV grid.

Original language	English
Title of host publication	Proceedings of the 2016 IEEE Region 10 Conference, TENCON 2016
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	984-987
Number of pages	4
ISBN (Electronic)	9781509025961
DOIs	https://doi.org/10.1109/TENCON.2016.7848152
Publication status	Published - Feb 8 2017
Externally published	Yes
Event	2016 IEEE Region 10 Conference, TENCON 2016 - Singapore, Singapore Duration: Nov 22 2016 → Nov 25 2016

Publication series

Name	IEEE Region 10 Annual International Conference, Proceedings/TENCON
ISSN (Print)	2159-3442
ISSN (Electronic)	2159-3450

Conference

Conference	2016 IEEE Region 10 Conference, TENCON 2016
Country/Territory	Singapore
City	Singapore
Period	11/22/16 → 11/25/16

Bibliographical note

Publisher Copyright:
© 2016 IEEE.

ASJC Scopus Subject Areas

Computer Science Applications
Electrical and Electronic Engineering

Keywords

active/reactive power injection
full-row connected cascaded H-bridge (CHB) converter
low-voltage ride-through (LVRT)
multilevel converter
Photovoltaic systems
unbalanced voltage sag

UN SDGs

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

Access to Document

10.1109/TENCON.2016.7848152

Cite this

Tafti, H. D., Maswood, A. I., Konstantinou, G., Pou, J., & Townsend, C. D. (2017). Low-voltage ride-through capability of full-row connected cascaded H-bridge converters. In Proceedings of the 2016 IEEE Region 10 Conference, TENCON 2016 (pp. 984-987). Article 7848152 (IEEE Region 10 Annual International Conference, Proceedings/TENCON). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/TENCON.2016.7848152

Tafti, Hossein Dehghani ; Maswood, Ali Iftekhar ; Konstantinou, Georgios et al. / Low-voltage ride-through capability of full-row connected cascaded H-bridge converters. Proceedings of the 2016 IEEE Region 10 Conference, TENCON 2016. Institute of Electrical and Electronics Engineers Inc., 2017. pp. 984-987 (IEEE Region 10 Annual International Conference, Proceedings/TENCON).

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abstract = "The full-row connection of dc-links provides an alternative configuration for the cascaded H-bridge (CHB) converter in large-scale grid-connected photovoltaic systems. In each stage, a single PV string is connected to all phases through isolated dc/dc converters. The per-phase power imbalance issue and second-harmonic voltage of the dc-link capacitors are alleviated by using this topology. This paper studies the low-voltage ride-through (LVRT) capability of the HB inverter with full-row connection in a grid-connected photovoltaic power plant (GCPVPP). A control algorithm is implemented for the isolated dc/dc converters which balances the capacitor voltages during voltage sags and reduces the second-harmonic voltage ripple of the dc-link capacitors. The performance of the grid-connected HB inverter with LVRT capability is investigated on a 3-MVA single-row, three-level CHB converter for the GCPVPP connected to a 6.6 kV grid.",

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Tafti, HD, Maswood, AI, Konstantinou, G, Pou, J & Townsend, CD 2017, Low-voltage ride-through capability of full-row connected cascaded H-bridge converters. in Proceedings of the 2016 IEEE Region 10 Conference, TENCON 2016., 7848152, IEEE Region 10 Annual International Conference, Proceedings/TENCON, Institute of Electrical and Electronics Engineers Inc., pp. 984-987, 2016 IEEE Region 10 Conference, TENCON 2016, Singapore, Singapore, 11/22/16. https://doi.org/10.1109/TENCON.2016.7848152

Low-voltage ride-through capability of full-row connected cascaded H-bridge converters. / Tafti, Hossein Dehghani; Maswood, Ali Iftekhar; Konstantinou, Georgios et al.
Proceedings of the 2016 IEEE Region 10 Conference, TENCON 2016. Institute of Electrical and Electronics Engineers Inc., 2017. p. 984-987 7848152 (IEEE Region 10 Annual International Conference, Proceedings/TENCON).

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

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Tafti HD, Maswood AI, Konstantinou G, Pou J, Townsend CD. Low-voltage ride-through capability of full-row connected cascaded H-bridge converters. In Proceedings of the 2016 IEEE Region 10 Conference, TENCON 2016. Institute of Electrical and Electronics Engineers Inc. 2017. p. 984-987. 7848152. (IEEE Region 10 Annual International Conference, Proceedings/TENCON). doi: 10.1109/TENCON.2016.7848152

Low-voltage ride-through capability of full-row connected cascaded H-bridge converters

Abstract

Publication series

Conference

Bibliographical note

ASJC Scopus Subject Areas

Keywords

UN SDGs

Access to Document

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