Dynamic active power sharing in a resistive microgrid

Augustine M. Egwebe; Megdad Fazeli; Petar Igic; Paul Holland

doi:10.1109/EFEA.2016.7748790

Dynamic active power sharing in a resistive microgrid

Augustine M. Egwebe
, Megdad Fazeli
, Petar Igic
, Paul Holland

Swansea University

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

Abstract

This paper explores the use of a dynamic virtual impedance approach to load sharing as an alternative to the more generic droop load sharing scheme for low-voltage islanded micro-grids. The approach is based on taking advantage of the power decoupling capability of the virtual impedance scheme to facilitate appropriate load sharing based on the available generation capacity of distributed generation (DG) units. The proposed scheme identifies the DC operating zone of the photovoltaic inverter-based unit as irradiance levels change and conditions the virtual impedance loop for an efficient load sharing based on available generation. This dynamic approach allows taking into account the rating, output impedance and voltage limits of each unit. The proposed scheme provides energy saving; since energy demand from a local auxiliary generator is reduced. Results from the proposed dynamic scheme were tested on a P-f/Q-V droop, in the presence of virtual impedance, and results were compared with the conventional-static virtual impedance loading method. The proposed method is validated using MATLAB/SIMULINK simulations.

Original language	English
Title of host publication	4th International Symposium on Environment Friendly Energies and Applications, EFEA 2016
Editors	Krishna Busawon, Aleksandar Nikolic, Goran Jankes, Alireza Maheri
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781509007486
DOIs	https://doi.org/10.1109/EFEA.2016.7748790
Publication status	Published - 18 Nov 2016
Externally published	Yes
Event	4th International Symposium on Environment Friendly Energies and Applications, EFEA 2016 - Belgrade, Serbia Duration: 14 Sept 2016 → 16 Sept 2016

Publication series

Name	4th International Symposium on Environment Friendly Energies and Applications, EFEA 2016

Conference

Conference	4th International Symposium on Environment Friendly Energies and Applications, EFEA 2016
Country/Territory	Serbia
City	Belgrade
Period	14/09/16 → 16/09/16

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Distributed Generation
Microgrids
Photovoltaic
Renewable Sources
Virtual Impedance

ASJC Scopus subject areas

Energy Engineering and Power Technology
Renewable Energy, Sustainability and the Environment

Access to Document

10.1109/EFEA.2016.7748790

Cite this

Egwebe, A. M., Fazeli, M., Igic, P., & Holland, P. (2016). Dynamic active power sharing in a resistive microgrid. In K. Busawon, A. Nikolic, G. Jankes, & A. Maheri (Eds.), 4th International Symposium on Environment Friendly Energies and Applications, EFEA 2016 Article 7748790 (4th International Symposium on Environment Friendly Energies and Applications, EFEA 2016). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/EFEA.2016.7748790

Dynamic active power sharing in a resistive microgrid. / Egwebe, Augustine M.; Fazeli, Megdad; Igic, Petar et al.
4th International Symposium on Environment Friendly Energies and Applications, EFEA 2016. ed. / Krishna Busawon; Aleksandar Nikolic; Goran Jankes; Alireza Maheri. Institute of Electrical and Electronics Engineers Inc., 2016. 7748790 (4th International Symposium on Environment Friendly Energies and Applications, EFEA 2016).

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

Egwebe, AM, Fazeli, M, Igic, P & Holland, P 2016, Dynamic active power sharing in a resistive microgrid. in K Busawon, A Nikolic, G Jankes & A Maheri (eds), 4th International Symposium on Environment Friendly Energies and Applications, EFEA 2016., 7748790, 4th International Symposium on Environment Friendly Energies and Applications, EFEA 2016, Institute of Electrical and Electronics Engineers Inc., 4th International Symposium on Environment Friendly Energies and Applications, EFEA 2016, Belgrade, Serbia, 14/09/16. https://doi.org/10.1109/EFEA.2016.7748790

Egwebe AM, Fazeli M, Igic P, Holland P. Dynamic active power sharing in a resistive microgrid. In Busawon K, Nikolic A, Jankes G, Maheri A, editors, 4th International Symposium on Environment Friendly Energies and Applications, EFEA 2016. Institute of Electrical and Electronics Engineers Inc. 2016. 7748790. (4th International Symposium on Environment Friendly Energies and Applications, EFEA 2016). doi: 10.1109/EFEA.2016.7748790

Egwebe, Augustine M. ; Fazeli, Megdad ; Igic, Petar et al. / Dynamic active power sharing in a resistive microgrid. 4th International Symposium on Environment Friendly Energies and Applications, EFEA 2016. editor / Krishna Busawon ; Aleksandar Nikolic ; Goran Jankes ; Alireza Maheri. Institute of Electrical and Electronics Engineers Inc., 2016. (4th International Symposium on Environment Friendly Energies and Applications, EFEA 2016).

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abstract = "This paper explores the use of a dynamic virtual impedance approach to load sharing as an alternative to the more generic droop load sharing scheme for low-voltage islanded micro-grids. The approach is based on taking advantage of the power decoupling capability of the virtual impedance scheme to facilitate appropriate load sharing based on the available generation capacity of distributed generation (DG) units. The proposed scheme identifies the DC operating zone of the photovoltaic inverter-based unit as irradiance levels change and conditions the virtual impedance loop for an efficient load sharing based on available generation. This dynamic approach allows taking into account the rating, output impedance and voltage limits of each unit. The proposed scheme provides energy saving; since energy demand from a local auxiliary generator is reduced. Results from the proposed dynamic scheme were tested on a P-f/Q-V droop, in the presence of virtual impedance, and results were compared with the conventional-static virtual impedance loading method. The proposed method is validated using MATLAB/SIMULINK simulations.",

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AU - Egwebe, Augustine M.

AU - Fazeli, Megdad

AU - Igic, Petar

AU - Holland, Paul

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Y1 - 2016/11/18

N2 - This paper explores the use of a dynamic virtual impedance approach to load sharing as an alternative to the more generic droop load sharing scheme for low-voltage islanded micro-grids. The approach is based on taking advantage of the power decoupling capability of the virtual impedance scheme to facilitate appropriate load sharing based on the available generation capacity of distributed generation (DG) units. The proposed scheme identifies the DC operating zone of the photovoltaic inverter-based unit as irradiance levels change and conditions the virtual impedance loop for an efficient load sharing based on available generation. This dynamic approach allows taking into account the rating, output impedance and voltage limits of each unit. The proposed scheme provides energy saving; since energy demand from a local auxiliary generator is reduced. Results from the proposed dynamic scheme were tested on a P-f/Q-V droop, in the presence of virtual impedance, and results were compared with the conventional-static virtual impedance loading method. The proposed method is validated using MATLAB/SIMULINK simulations.

AB - This paper explores the use of a dynamic virtual impedance approach to load sharing as an alternative to the more generic droop load sharing scheme for low-voltage islanded micro-grids. The approach is based on taking advantage of the power decoupling capability of the virtual impedance scheme to facilitate appropriate load sharing based on the available generation capacity of distributed generation (DG) units. The proposed scheme identifies the DC operating zone of the photovoltaic inverter-based unit as irradiance levels change and conditions the virtual impedance loop for an efficient load sharing based on available generation. This dynamic approach allows taking into account the rating, output impedance and voltage limits of each unit. The proposed scheme provides energy saving; since energy demand from a local auxiliary generator is reduced. Results from the proposed dynamic scheme were tested on a P-f/Q-V droop, in the presence of virtual impedance, and results were compared with the conventional-static virtual impedance loading method. The proposed method is validated using MATLAB/SIMULINK simulations.

KW - Distributed Generation

KW - Microgrids

KW - Photovoltaic

KW - Renewable Sources

KW - Virtual Impedance

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A2 - Busawon, Krishna

A2 - Nikolic, Aleksandar

A2 - Jankes, Goran

A2 - Maheri, Alireza

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 4th International Symposium on Environment Friendly Energies and Applications, EFEA 2016

Y2 - 14 September 2016 through 16 September 2016

ER -

Dynamic active power sharing in a resistive microgrid

Abstract

Publication series

Conference

UN SDGs

Keywords

ASJC Scopus subject areas

Access to Document

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Cite this