Power decoupling with autonomous reference generation for single-phase differential inverters

Wenli Yao, Xiaobin Zhang, Xiongfei Wang, Yi Tang, Poh Chiang Loh, Frede Blaabjerg

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

14 Citations (Scopus)

Abstract

The second-harmonic power ripple in single-phase inverter may introduce the issue of low reliability and low power density. In order to replace the bulky dc-link capacitor, an alternative approach is to use active power decoupling so that the ripple power can be diverted into other energy storages. However, the performance of existing active power decoupling methods depends heavily on certain control references, which unfortunately are parameter dependent. In this paper an autonomous reference generation technique is proposed for single phase differential inverter without relying on the system parameters. A unified average switching model is firstly derived for Buck, Buck-Boost and Boost differential inverter, which is apparently have nonlinear characteristics. Then, dual-loop cascading control and a feedback linearization method is employed to design the inner- and outer loop controllers, which are used for realizing an improved power decoupling control, capacitor voltage and inductor current regulation. By substituting the corresponding parameter into unified model, the proposed control loop can be applied to different inverter types (Buck, Buck-Boost and Boost). Finally, detailed laboratory prototype experimental results have been done to verify the effectiveness of this power decoupling method.
Original languageEnglish
Title of host publicationProceedings of the 2015 17th European Conference on Power Electronics and Applications (EPE'15 ECCE-Europe)
Number of pages10
PublisherIEEE Press
Publication dateSep 2015
Pages1-10
Article number7311675
ISBN (Print)978-907581522-1
DOIs
Publication statusPublished - Sep 2015
Event17th European Conference on Power Electronics and Applications, EPE-ECCE Europe 2015 - Centre International de Conférence Genève (CICG), 17 rue Varembé CH . 1211 Genève 20, Geneva, Switzerland
Duration: 8 Sep 201510 Sep 2015

Conference

Conference17th European Conference on Power Electronics and Applications, EPE-ECCE Europe 2015
LocationCentre International de Conférence Genève (CICG), 17 rue Varembé CH . 1211 Genève 20
CountrySwitzerland
CityGeneva
Period08/09/201510/09/2015

Fingerprint

Capacitors
Feedback linearization
Power control
Energy storage
Controllers
Electric potential

Keywords

  • Active power decoupling
  • Differential inverter
  • Unified average model
  • Feedback linearization
  • Power control

Cite this

Yao, W., Zhang, X., Wang, X., Tang, Y., Loh, P. C., & Blaabjerg, F. (2015). Power decoupling with autonomous reference generation for single-phase differential inverters. In Proceedings of the 2015 17th European Conference on Power Electronics and Applications (EPE'15 ECCE-Europe) (pp. 1-10). [7311675] IEEE Press. https://doi.org/10.1109/EPE.2015.7311675
Yao, Wenli ; Zhang, Xiaobin ; Wang, Xiongfei ; Tang, Yi ; Loh, Poh Chiang ; Blaabjerg, Frede. / Power decoupling with autonomous reference generation for single-phase differential inverters. Proceedings of the 2015 17th European Conference on Power Electronics and Applications (EPE'15 ECCE-Europe). IEEE Press, 2015. pp. 1-10
@inproceedings{5bee99d6016042549758d35c6130cd31,
title = "Power decoupling with autonomous reference generation for single-phase differential inverters",
abstract = "The second-harmonic power ripple in single-phase inverter may introduce the issue of low reliability and low power density. In order to replace the bulky dc-link capacitor, an alternative approach is to use active power decoupling so that the ripple power can be diverted into other energy storages. However, the performance of existing active power decoupling methods depends heavily on certain control references, which unfortunately are parameter dependent. In this paper an autonomous reference generation technique is proposed for single phase differential inverter without relying on the system parameters. A unified average switching model is firstly derived for Buck, Buck-Boost and Boost differential inverter, which is apparently have nonlinear characteristics. Then, dual-loop cascading control and a feedback linearization method is employed to design the inner- and outer loop controllers, which are used for realizing an improved power decoupling control, capacitor voltage and inductor current regulation. By substituting the corresponding parameter into unified model, the proposed control loop can be applied to different inverter types (Buck, Buck-Boost and Boost). Finally, detailed laboratory prototype experimental results have been done to verify the effectiveness of this power decoupling method.",
keywords = "Active power decoupling, Differential inverter, Unified average model, Feedback linearization, Power control",
author = "Wenli Yao and Xiaobin Zhang and Xiongfei Wang and Yi Tang and Loh, {Poh Chiang} and Frede Blaabjerg",
year = "2015",
month = "9",
doi = "10.1109/EPE.2015.7311675",
language = "English",
isbn = "978-907581522-1",
pages = "1--10",
booktitle = "Proceedings of the 2015 17th European Conference on Power Electronics and Applications (EPE'15 ECCE-Europe)",
publisher = "IEEE Press",

}

Yao, W, Zhang, X, Wang, X, Tang, Y, Loh, PC & Blaabjerg, F 2015, Power decoupling with autonomous reference generation for single-phase differential inverters. in Proceedings of the 2015 17th European Conference on Power Electronics and Applications (EPE'15 ECCE-Europe)., 7311675, IEEE Press, pp. 1-10, 17th European Conference on Power Electronics and Applications, EPE-ECCE Europe 2015, Geneva, Switzerland, 08/09/2015. https://doi.org/10.1109/EPE.2015.7311675

Power decoupling with autonomous reference generation for single-phase differential inverters. / Yao, Wenli; Zhang, Xiaobin; Wang, Xiongfei; Tang, Yi; Loh, Poh Chiang; Blaabjerg, Frede.

Proceedings of the 2015 17th European Conference on Power Electronics and Applications (EPE'15 ECCE-Europe). IEEE Press, 2015. p. 1-10 7311675.

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

TY - GEN

T1 - Power decoupling with autonomous reference generation for single-phase differential inverters

AU - Yao, Wenli

AU - Zhang, Xiaobin

AU - Wang, Xiongfei

AU - Tang, Yi

AU - Loh, Poh Chiang

AU - Blaabjerg, Frede

PY - 2015/9

Y1 - 2015/9

N2 - The second-harmonic power ripple in single-phase inverter may introduce the issue of low reliability and low power density. In order to replace the bulky dc-link capacitor, an alternative approach is to use active power decoupling so that the ripple power can be diverted into other energy storages. However, the performance of existing active power decoupling methods depends heavily on certain control references, which unfortunately are parameter dependent. In this paper an autonomous reference generation technique is proposed for single phase differential inverter without relying on the system parameters. A unified average switching model is firstly derived for Buck, Buck-Boost and Boost differential inverter, which is apparently have nonlinear characteristics. Then, dual-loop cascading control and a feedback linearization method is employed to design the inner- and outer loop controllers, which are used for realizing an improved power decoupling control, capacitor voltage and inductor current regulation. By substituting the corresponding parameter into unified model, the proposed control loop can be applied to different inverter types (Buck, Buck-Boost and Boost). Finally, detailed laboratory prototype experimental results have been done to verify the effectiveness of this power decoupling method.

AB - The second-harmonic power ripple in single-phase inverter may introduce the issue of low reliability and low power density. In order to replace the bulky dc-link capacitor, an alternative approach is to use active power decoupling so that the ripple power can be diverted into other energy storages. However, the performance of existing active power decoupling methods depends heavily on certain control references, which unfortunately are parameter dependent. In this paper an autonomous reference generation technique is proposed for single phase differential inverter without relying on the system parameters. A unified average switching model is firstly derived for Buck, Buck-Boost and Boost differential inverter, which is apparently have nonlinear characteristics. Then, dual-loop cascading control and a feedback linearization method is employed to design the inner- and outer loop controllers, which are used for realizing an improved power decoupling control, capacitor voltage and inductor current regulation. By substituting the corresponding parameter into unified model, the proposed control loop can be applied to different inverter types (Buck, Buck-Boost and Boost). Finally, detailed laboratory prototype experimental results have been done to verify the effectiveness of this power decoupling method.

KW - Active power decoupling

KW - Differential inverter

KW - Unified average model

KW - Feedback linearization

KW - Power control

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-84965050354&origin=inward&txGid=0

U2 - 10.1109/EPE.2015.7311675

DO - 10.1109/EPE.2015.7311675

M3 - Article in proceeding

SN - 978-907581522-1

SP - 1

EP - 10

BT - Proceedings of the 2015 17th European Conference on Power Electronics and Applications (EPE'15 ECCE-Europe)

PB - IEEE Press

ER -

Yao W, Zhang X, Wang X, Tang Y, Loh PC, Blaabjerg F. Power decoupling with autonomous reference generation for single-phase differential inverters. In Proceedings of the 2015 17th European Conference on Power Electronics and Applications (EPE'15 ECCE-Europe). IEEE Press. 2015. p. 1-10. 7311675 https://doi.org/10.1109/EPE.2015.7311675