Improved low voltage ride-through performance of single-phase power converters using hybrid grid synchronization

Animesh Sahoo; Jayashri Ravishankar; Mihai Ciobotaru; Sanjeevikumar Padmanaban

doi:10.1109/IECON43393.2020.9254513

Improved low voltage ride-through performance of single-phase power converters using hybrid grid synchronization

Animesh Sahoo, Jayashri Ravishankar, Mihai Ciobotaru, Sanjeevikumar Padmanaban

School of Engineering

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

Abstract

Loss of synchronization (LOS) in case of synchronous reference frame based phase-locked loop (SRFPLL) affects the low voltage ride-through performance of grid-connected power converters. To avoid this issue, this paper proposes a hybrid grid synchronization technique that includes two frequency and two phase-angle estimators. It uses the frequency and phase-angle estimation by the SRFPLL during normal grid operation and switches to the arctangent based phase-angle and corresponding frequency estimation in the αβ-frame during grid faults. To avoid sudden mode transfer between these estimators a common transition algorithm is proposed as well, which is controlled by the phase-angle difference between them. The proposed hybrid grid synchronization transition is implemented in the frequency dependent proportional and resonant current controller of the converter. The controller is run with the low voltage ride-through strategy during the faults. It is observed that the converter having the proposed grid synchronization technique provides robust current controller performance as the fast tracking of grid current on the fault inception and recovery.

Original language	English
Title of host publication	Proceedings IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society
Place of Publication	Piscataway, NJ
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	3685-3690
Number of pages	6
ISBN (Electronic)	9781728154145, 9781728154138
ISBN (Print)	9781728154152
DOIs	https://doi.org/10.1109/IECON43393.2020.9254513
Publication status	Published - 2020
Event	46th Annual Conference of the IEEE Industrial Electronics Society, IECON 2020 - Virtual, Singapore, Singapore Duration: 19 Oct 2020 → 21 Oct 2020

Publication series

Name
ISSN (Print)	1553-572X
ISSN (Electronic)	2577-1647

Conference

Conference	46th Annual Conference of the IEEE Industrial Electronics Society, IECON 2020
Country/Territory	Singapore
City	Virtual, Singapore
Period	19/10/20 → 21/10/20

Keywords

Phase-locked loop
Hybrid grid synchronization
SRF-PLL
Arctangent
Low voltage ride-through
Grid faults
Phase-angle jump

Access to Document

10.1109/IECON43393.2020.9254513

Cite this

Sahoo, A., Ravishankar, J., Ciobotaru, M., & Padmanaban, S. (2020). Improved low voltage ride-through performance of single-phase power converters using hybrid grid synchronization. In Proceedings IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society (pp. 3685-3690). Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/IECON43393.2020.9254513

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title = "Improved low voltage ride-through performance of single-phase power converters using hybrid grid synchronization",

abstract = "Loss of synchronization (LOS) in case of synchronous reference frame based phase-locked loop (SRFPLL) affects the low voltage ride-through performance of grid-connected power converters. To avoid this issue, this paper proposes a hybrid grid synchronization technique that includes two frequency and two phase-angle estimators. It uses the frequency and phase-angle estimation by the SRFPLL during normal grid operation and switches to the arctangent based phase-angle and corresponding frequency estimation in the αβ-frame during grid faults. To avoid sudden mode transfer between these estimators a common transition algorithm is proposed as well, which is controlled by the phase-angle difference between them. The proposed hybrid grid synchronization transition is implemented in the frequency dependent proportional and resonant current controller of the converter. The controller is run with the low voltage ride-through strategy during the faults. It is observed that the converter having the proposed grid synchronization technique provides robust current controller performance as the fast tracking of grid current on the fault inception and recovery.",

keywords = "Phase-locked loop, Hybrid grid synchronization, SRF-PLL, Arctangent, Low voltage ride-through, Grid faults, Phase-angle jump",

author = "Animesh Sahoo and Jayashri Ravishankar and Mihai Ciobotaru and Sanjeevikumar Padmanaban",

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doi = "10.1109/IECON43393.2020.9254513",

language = "English",

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pages = "3685--3690",

booktitle = "Proceedings IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society",

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note = "46th Annual Conference of the IEEE Industrial Electronics Society, IECON 2020 ; Conference date: 19-10-2020 Through 21-10-2020",

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Sahoo, A, Ravishankar, J, Ciobotaru, M & Padmanaban, S 2020, Improved low voltage ride-through performance of single-phase power converters using hybrid grid synchronization. in Proceedings IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society. Institute of Electrical and Electronics Engineers (IEEE), Piscataway, NJ, pp. 3685-3690, 46th Annual Conference of the IEEE Industrial Electronics Society, IECON 2020, Virtual, Singapore, Singapore, 19/10/20. https://doi.org/10.1109/IECON43393.2020.9254513

Improved low voltage ride-through performance of single-phase power converters using hybrid grid synchronization. / Sahoo, Animesh; Ravishankar, Jayashri; Ciobotaru, Mihai et al.
Proceedings IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society. Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE), 2020. p. 3685-3690.

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

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AU - Ciobotaru, Mihai

AU - Padmanaban, Sanjeevikumar

PY - 2020

Y1 - 2020

N2 - Loss of synchronization (LOS) in case of synchronous reference frame based phase-locked loop (SRFPLL) affects the low voltage ride-through performance of grid-connected power converters. To avoid this issue, this paper proposes a hybrid grid synchronization technique that includes two frequency and two phase-angle estimators. It uses the frequency and phase-angle estimation by the SRFPLL during normal grid operation and switches to the arctangent based phase-angle and corresponding frequency estimation in the αβ-frame during grid faults. To avoid sudden mode transfer between these estimators a common transition algorithm is proposed as well, which is controlled by the phase-angle difference between them. The proposed hybrid grid synchronization transition is implemented in the frequency dependent proportional and resonant current controller of the converter. The controller is run with the low voltage ride-through strategy during the faults. It is observed that the converter having the proposed grid synchronization technique provides robust current controller performance as the fast tracking of grid current on the fault inception and recovery.

AB - Loss of synchronization (LOS) in case of synchronous reference frame based phase-locked loop (SRFPLL) affects the low voltage ride-through performance of grid-connected power converters. To avoid this issue, this paper proposes a hybrid grid synchronization technique that includes two frequency and two phase-angle estimators. It uses the frequency and phase-angle estimation by the SRFPLL during normal grid operation and switches to the arctangent based phase-angle and corresponding frequency estimation in the αβ-frame during grid faults. To avoid sudden mode transfer between these estimators a common transition algorithm is proposed as well, which is controlled by the phase-angle difference between them. The proposed hybrid grid synchronization transition is implemented in the frequency dependent proportional and resonant current controller of the converter. The controller is run with the low voltage ride-through strategy during the faults. It is observed that the converter having the proposed grid synchronization technique provides robust current controller performance as the fast tracking of grid current on the fault inception and recovery.

KW - Phase-locked loop

KW - Hybrid grid synchronization

KW - SRF-PLL

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Y2 - 19 October 2020 through 21 October 2020

ER -

Sahoo A, Ravishankar J, Ciobotaru M, Padmanaban S. Improved low voltage ride-through performance of single-phase power converters using hybrid grid synchronization. In Proceedings IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society. Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE). 2020. p. 3685-3690 doi: 10.1109/IECON43393.2020.9254513

Improved low voltage ride-through performance of single-phase power converters using hybrid grid synchronization

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Keywords

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