Enhanced voltage regulation of AC microgrids with electric springs

Yufei He; Minghao Wang; Zhao Xu

doi:10.1109/APEC.2019.8722149

Enhanced voltage regulation of AC microgrids with electric springs

Yufei He
, Minghao Wang
, Zhao Xu

The Hong Kong Polytechnic University

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

6 Citations (Scopus)

Abstract

Intermittent renewable generations can induce voltage instability issues in terms of (i) AC bus voltage variations and (ii) voltage flickers in AC microgrids, which deteriorate the power quality of the critical loads. To address this, the electric springs with capacitive energy storages can be applied to regulate the bus voltages at the points of common coupling (PCCs). In this paper, a novel control method is proposed to enhance the voltage regulation performances of the ES in AC microgrids. The controller is designed to achieve the concurrent compensations of bus voltage variations and voltage flickers. The steady-state model of an ES associated with a non-critical load (NCL) is analytically derived. The design of the controller as well as the small-signal analysis is provided. The experiments and simulations have been performed on a scaled-down 110 V AC microgrid. The results have verified that the proposed control method can effectively realize the aforementioned functionalities.

Original language	English
Title of host publication	34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	534-539
Number of pages	6
ISBN (Electronic)	9781538683309
DOIs	https://doi.org/10.1109/APEC.2019.8722149
Publication status	Published - 24 May 2019
Event	34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019 - Anaheim, United States Duration: 17 Mar 2019 → 21 Mar 2019

Publication series

Name	Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
Volume	2019-March

Conference

Conference	34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019
Country/Territory	United States
City	Anaheim
Period	17/03/19 → 21/03/19

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

AC microgrid
Electric springs
Hybrid control
Smart load

ASJC Scopus subject areas

Electrical and Electronic Engineering

More information

10.1109/APEC.2019.8722149

Cite this

He, Y., Wang, M., & Xu, Z. (2019). Enhanced voltage regulation of AC microgrids with electric springs. In 34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019 (pp. 534-539). Article 8722149 (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC; Vol. 2019-March). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APEC.2019.8722149

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abstract = "Intermittent renewable generations can induce voltage instability issues in terms of (i) AC bus voltage variations and (ii) voltage flickers in AC microgrids, which deteriorate the power quality of the critical loads. To address this, the electric springs with capacitive energy storages can be applied to regulate the bus voltages at the points of common coupling (PCCs). In this paper, a novel control method is proposed to enhance the voltage regulation performances of the ES in AC microgrids. The controller is designed to achieve the concurrent compensations of bus voltage variations and voltage flickers. The steady-state model of an ES associated with a non-critical load (NCL) is analytically derived. The design of the controller as well as the small-signal analysis is provided. The experiments and simulations have been performed on a scaled-down 110 V AC microgrid. The results have verified that the proposed control method can effectively realize the aforementioned functionalities.",

keywords = "AC microgrid, Electric springs, Hybrid control, Smart load",

author = "Yufei He and Minghao Wang and Zhao Xu",

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language = "English",

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publisher = "Institute of Electrical and Electronics Engineers Inc.",

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He, Y, Wang, M & Xu, Z 2019, Enhanced voltage regulation of AC microgrids with electric springs. in 34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019., 8722149, Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC, vol. 2019-March, Institute of Electrical and Electronics Engineers Inc., pp. 534-539, 34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019, Anaheim, United States, 17/03/19. https://doi.org/10.1109/APEC.2019.8722149

Enhanced voltage regulation of AC microgrids with electric springs. / He, Yufei; Wang, Minghao; Xu, Zhao.
34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019. Institute of Electrical and Electronics Engineers Inc., 2019. p. 534-539 8722149 (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC; Vol. 2019-March).

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

TY - GEN

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AU - He, Yufei

AU - Wang, Minghao

AU - Xu, Zhao

PY - 2019/5/24

Y1 - 2019/5/24

N2 - Intermittent renewable generations can induce voltage instability issues in terms of (i) AC bus voltage variations and (ii) voltage flickers in AC microgrids, which deteriorate the power quality of the critical loads. To address this, the electric springs with capacitive energy storages can be applied to regulate the bus voltages at the points of common coupling (PCCs). In this paper, a novel control method is proposed to enhance the voltage regulation performances of the ES in AC microgrids. The controller is designed to achieve the concurrent compensations of bus voltage variations and voltage flickers. The steady-state model of an ES associated with a non-critical load (NCL) is analytically derived. The design of the controller as well as the small-signal analysis is provided. The experiments and simulations have been performed on a scaled-down 110 V AC microgrid. The results have verified that the proposed control method can effectively realize the aforementioned functionalities.

AB - Intermittent renewable generations can induce voltage instability issues in terms of (i) AC bus voltage variations and (ii) voltage flickers in AC microgrids, which deteriorate the power quality of the critical loads. To address this, the electric springs with capacitive energy storages can be applied to regulate the bus voltages at the points of common coupling (PCCs). In this paper, a novel control method is proposed to enhance the voltage regulation performances of the ES in AC microgrids. The controller is designed to achieve the concurrent compensations of bus voltage variations and voltage flickers. The steady-state model of an ES associated with a non-critical load (NCL) is analytically derived. The design of the controller as well as the small-signal analysis is provided. The experiments and simulations have been performed on a scaled-down 110 V AC microgrid. The results have verified that the proposed control method can effectively realize the aforementioned functionalities.

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KW - Electric springs

KW - Hybrid control

KW - Smart load

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He Y, Wang M, Xu Z. Enhanced voltage regulation of AC microgrids with electric springs. In 34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019. Institute of Electrical and Electronics Engineers Inc. 2019. p. 534-539. 8722149. (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC). doi: 10.1109/APEC.2019.8722149

Enhanced voltage regulation of AC microgrids with electric springs

Abstract

Publication series

Conference

UN SDGs

Keywords

ASJC Scopus subject areas

More information

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