Current Control of Grid Converters Connected with Series AC Capacitor

Xiongfei Wang; Frede Blaabjerg; Poh Chiang Loh; Ying Pang

doi:10.1109/APEC.2015.7104591

Current Control of Grid Converters Connected with Series AC Capacitor

Xiongfei Wang, Frede Blaabjerg, Poh Chiang Loh, Ying Pang

AAU Energy

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

3 Citations (Scopus)

840 Downloads (Pure)

Abstract

The series ac capacitor has recently been used with the transformerless grid-connected converters in the distribution power grids. The capacitive characteristic of the resulting series LC filter restricts the use of conventional synchronous integral or stationary resonant current controllers. Thus this paper proposes a fourth-order resonant controller in the stationary frame, which guarantees a zero steady-state current tracking error for the grid converters with series LC filter. This method is then implemented in a three-phase experimental system for verification, where the current harmonics below the LC filter resonance frequency are effectively eliminated. Experimental results confirm the validity of the proposed current control scheme.

Original language	English
Title of host publication	Proceedings of the 30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015
Number of pages	7
Publisher	IEEE Press
Publication date	Mar 2015
Pages	1800-1806
ISBN (Print)	978-1-4799-6735-3
DOIs	https://doi.org/10.1109/APEC.2015.7104591
Publication status	Published - Mar 2015
Event	30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015 - Charlotte, United States Duration: 15 Mar 2015 → 19 Mar 2015

Conference

Conference	30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015
Country/Territory	United States
City	Charlotte
Period	15/03/2015 → 19/03/2015

Series	I E E E Applied Power Electronics Conference and Exposition. Conference Proceedings
ISSN	1048-2334

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10.1109/APEC.2015.7104591

Current Control of Grid Converters Connected with Series AC CapacitorSubmitted manuscript, 1.72 MB

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HARMONY: HARMONY - Harmonic identification, mitigation and control in power electronics based power systems
Blaabjerg, F., Bak, C. L., Wang, X., Beres, R. N., Kwon, J., Gui, Y., Yoon, C. & Ebrahimzadeh, E.
European Research Counsil
01/02/2013 → 28/02/2018
Project: Research

Cite this

@inproceedings{56fa0965769a43778f9663b6ac54fa54,

title = "Current Control of Grid Converters Connected with Series AC Capacitor",

abstract = "The series ac capacitor has recently been used with the transformerless grid-connected converters in the distribution power grids. The capacitive characteristic of the resulting series LC filter restricts the use of conventional synchronous integral or stationary resonant current controllers. Thus this paper proposes a fourth-order resonant controller in the stationary frame, which guarantees a zero steady-state current tracking error for the grid converters with series LC filter. This method is then implemented in a three-phase experimental system for verification, where the current harmonics below the LC filter resonance frequency are effectively eliminated. Experimental results confirm the validity of the proposed current control scheme.",

author = "Xiongfei Wang and Frede Blaabjerg and Loh, {Poh Chiang} and Ying Pang",

year = "2015",

month = mar,

doi = "10.1109/APEC.2015.7104591",

language = "English",

isbn = "978-1-4799-6735-3",

series = "I E E E Applied Power Electronics Conference and Exposition. Conference Proceedings",

publisher = "IEEE Press",

pages = "1800--1806",

booktitle = "Proceedings of the 30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015",

note = "30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015, IEEE APEC 2015 ; Conference date: 15-03-2015 Through 19-03-2015",

}

Wang, X , Blaabjerg, F, Loh, PC & Pang, Y 2015, Current Control of Grid Converters Connected with Series AC Capacitor. in Proceedings of the 30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015. IEEE Press, I E E E Applied Power Electronics Conference and Exposition. Conference Proceedings, pp. 1800-1806, 30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015, Charlotte, United States, 15/03/2015. https://doi.org/10.1109/APEC.2015.7104591

Current Control of Grid Converters Connected with Series AC Capacitor. / Wang, Xiongfei ; Blaabjerg, Frede; Loh, Poh Chiang et al.
Proceedings of the 30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015. IEEE Press, 2015. p. 1800-1806 (I E E E Applied Power Electronics Conference and Exposition. Conference Proceedings).

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

TY - GEN

T1 - Current Control of Grid Converters Connected with Series AC Capacitor

AU - Wang, Xiongfei

AU - Blaabjerg, Frede

AU - Loh, Poh Chiang

AU - Pang, Ying

PY - 2015/3

Y1 - 2015/3

N2 - The series ac capacitor has recently been used with the transformerless grid-connected converters in the distribution power grids. The capacitive characteristic of the resulting series LC filter restricts the use of conventional synchronous integral or stationary resonant current controllers. Thus this paper proposes a fourth-order resonant controller in the stationary frame, which guarantees a zero steady-state current tracking error for the grid converters with series LC filter. This method is then implemented in a three-phase experimental system for verification, where the current harmonics below the LC filter resonance frequency are effectively eliminated. Experimental results confirm the validity of the proposed current control scheme.

AB - The series ac capacitor has recently been used with the transformerless grid-connected converters in the distribution power grids. The capacitive characteristic of the resulting series LC filter restricts the use of conventional synchronous integral or stationary resonant current controllers. Thus this paper proposes a fourth-order resonant controller in the stationary frame, which guarantees a zero steady-state current tracking error for the grid converters with series LC filter. This method is then implemented in a three-phase experimental system for verification, where the current harmonics below the LC filter resonance frequency are effectively eliminated. Experimental results confirm the validity of the proposed current control scheme.

U2 - 10.1109/APEC.2015.7104591

DO - 10.1109/APEC.2015.7104591

M3 - Article in proceeding

SN - 978-1-4799-6735-3

T3 - I E E E Applied Power Electronics Conference and Exposition. Conference Proceedings

SP - 1800

EP - 1806

BT - Proceedings of the 30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015

PB - IEEE Press

T2 - 30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015

Y2 - 15 March 2015 through 19 March 2015

ER -

Current Control of Grid Converters Connected with Series AC Capacitor

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Projects

HARMONY: HARMONY - Harmonic identification, mitigation and control in power electronics based power systems

Cite this