Optimal interleaving angle determination in multi paralleled converters considering the DC current ripple and grid Current THD

L. Bede; G. Gohil; T. Kerekes; R. Teodorescu

doi:10.1109/ICPE.2015.7167932

Optimal interleaving angle determination in multi paralleled converters considering the DC current ripple and grid Current THD

L. Bede, G. Gohil, T. Kerekes, R. Teodorescu

AAU Energy

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

19 Citations (Scopus)

381 Downloads (Pure)

Abstract

A typical application for parallel connected converters is in multi megawatt wind turbine systems. Manipulating the interleaving angle between the Pulse Width Modulated (PWM) carrier waves of each converter can result in reduced grid and DC link current ripple, thus the passive components from the DC link and grid filter can be minimized. In previous studies the optimization of the interleaving angle for either the grid current Total Harmonic Distortion (THD) or the DC link current ripple has been made. In this study a compromise is made in order to maintain a THD of the grid current in a level that complies with the standards, while in the DC link the current ripple is reduced. The dependency of the grid current THD and the DC link current ripple on the interleaving angle were determined by simulations. The results were also validated on a hardware setup.

Original language	English
Title of host publication	Proceedings of the 2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia)
Number of pages	8
Publisher	IEEE Press
Publication date	Jun 2015
Pages	1195-1202
DOIs	https://doi.org/10.1109/ICPE.2015.7167932
Publication status	Published - Jun 2015
Event	9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia 2015) - Seoul, Korea, Republic of Duration: 1 Jun 2015 → 5 Jun 2015

Conference

Conference	9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia 2015)
Country/Territory	Korea, Republic of
City	Seoul
Period	01/06/2015 → 05/06/2015

Keywords

PWM power convertors
Harmonic distortion
Optimisation
Power conversion harmonics
Power grids
Wind turbines
DC current ripple
PWM carrier waves
Grid current THD
Grid current total harmonic distortion
Multiparalleled converter
Parallel connected converters
Pulse width modulated carrier waves
Wind turbine systems
Capacitors
Inductors
Power conversion
Power harmonic filters
Pulse width modulation
Optimal interleaving angle
Parallel converters
Renewable energy

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Cite this

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title = "Optimal interleaving angle determination in multi paralleled converters considering the DC current ripple and grid Current THD",

abstract = "A typical application for parallel connected converters is in multi megawatt wind turbine systems. Manipulating the interleaving angle between the Pulse Width Modulated (PWM) carrier waves of each converter can result in reduced grid and DC link current ripple, thus the passive components from the DC link and grid filter can be minimized. In previous studies the optimization of the interleaving angle for either the grid current Total Harmonic Distortion (THD) or the DC link current ripple has been made. In this study a compromise is made in order to maintain a THD of the grid current in a level that complies with the standards, while in the DC link the current ripple is reduced. The dependency of the grid current THD and the DC link current ripple on the interleaving angle were determined by simulations. The results were also validated on a hardware setup.",

keywords = "PWM power convertors, Harmonic distortion, Optimisation, Power conversion harmonics, Power grids, Wind turbines, DC current ripple, PWM carrier waves, Grid current THD, Grid current total harmonic distortion, Multiparalleled converter, Parallel connected converters, Pulse width modulated carrier waves, Wind turbine systems, Capacitors, Inductors, Power conversion, Power harmonic filters, Pulse width modulation, Optimal interleaving angle, Parallel converters, Renewable energy",

author = "L. Bede and G. Gohil and T. Kerekes and R. Teodorescu",

year = "2015",

month = jun,

doi = "10.1109/ICPE.2015.7167932",

language = "English",

pages = "1195--1202",

booktitle = "Proceedings of the 2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia)",

publisher = "IEEE Press",

note = "9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia 2015) ; Conference date: 01-06-2015 Through 05-06-2015",

}

Bede, L, Gohil, G, Kerekes, T & Teodorescu, R 2015, Optimal interleaving angle determination in multi paralleled converters considering the DC current ripple and grid Current THD. in Proceedings of the 2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia). IEEE Press, pp. 1195-1202, 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia 2015), Seoul, Korea, Republic of, 01/06/2015. https://doi.org/10.1109/ICPE.2015.7167932

Optimal interleaving angle determination in multi paralleled converters considering the DC current ripple and grid Current THD. / Bede, L.; Gohil, G.; Kerekes, T. et al.
Proceedings of the 2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia). IEEE Press, 2015. p. 1195-1202.

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

TY - GEN

T1 - Optimal interleaving angle determination in multi paralleled converters considering the DC current ripple and grid Current THD

AU - Bede, L.

AU - Gohil, G.

AU - Kerekes, T.

AU - Teodorescu, R.

PY - 2015/6

Y1 - 2015/6

N2 - A typical application for parallel connected converters is in multi megawatt wind turbine systems. Manipulating the interleaving angle between the Pulse Width Modulated (PWM) carrier waves of each converter can result in reduced grid and DC link current ripple, thus the passive components from the DC link and grid filter can be minimized. In previous studies the optimization of the interleaving angle for either the grid current Total Harmonic Distortion (THD) or the DC link current ripple has been made. In this study a compromise is made in order to maintain a THD of the grid current in a level that complies with the standards, while in the DC link the current ripple is reduced. The dependency of the grid current THD and the DC link current ripple on the interleaving angle were determined by simulations. The results were also validated on a hardware setup.

AB - A typical application for parallel connected converters is in multi megawatt wind turbine systems. Manipulating the interleaving angle between the Pulse Width Modulated (PWM) carrier waves of each converter can result in reduced grid and DC link current ripple, thus the passive components from the DC link and grid filter can be minimized. In previous studies the optimization of the interleaving angle for either the grid current Total Harmonic Distortion (THD) or the DC link current ripple has been made. In this study a compromise is made in order to maintain a THD of the grid current in a level that complies with the standards, while in the DC link the current ripple is reduced. The dependency of the grid current THD and the DC link current ripple on the interleaving angle were determined by simulations. The results were also validated on a hardware setup.

KW - PWM power convertors

KW - Harmonic distortion

KW - Optimisation

KW - Power conversion harmonics

KW - Power grids

KW - Wind turbines

KW - DC current ripple

KW - PWM carrier waves

KW - Grid current THD

KW - Grid current total harmonic distortion

KW - Multiparalleled converter

KW - Parallel connected converters

KW - Pulse width modulated carrier waves

KW - Wind turbine systems

KW - Capacitors

KW - Inductors

KW - Power conversion

KW - Power harmonic filters

KW - Pulse width modulation

KW - Optimal interleaving angle

KW - Parallel converters

KW - Renewable energy

U2 - 10.1109/ICPE.2015.7167932

DO - 10.1109/ICPE.2015.7167932

M3 - Article in proceeding

SP - 1195

EP - 1202

BT - Proceedings of the 2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia)

PB - IEEE Press

T2 - 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia 2015)

Y2 - 1 June 2015 through 5 June 2015

ER -

Optimal interleaving angle determination in multi paralleled converters considering the DC current ripple and grid Current THD

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