Droop control method for load share and voltage regulation in high-voltage microgrids

When the line impedance is considered in the microgrid, the accuracy of load sharing will decrease. In this paper, the impact of line impedance on the accuracy of load sharing is analyzed. A robust droop control for a highvoltage microgrid is proposed based on the signal detection on the high-voltag...

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Main Authors: Zhikang Shuai, Shanglin Mo, Jun Wang, Z. John Shen, Wei Tian, Yan Feng
Format: Article
Language:English
Published: IEEE 2016-01-01
Series:Journal of Modern Power Systems and Clean Energy
Subjects:
Online Access:https://ieeexplore.ieee.org/document/8939512/
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author Zhikang Shuai
Shanglin Mo
Jun Wang
Z. John Shen
Wei Tian
Yan Feng
author_facet Zhikang Shuai
Shanglin Mo
Jun Wang
Z. John Shen
Wei Tian
Yan Feng
author_sort Zhikang Shuai
collection DOAJ
description When the line impedance is considered in the microgrid, the accuracy of load sharing will decrease. In this paper, the impact of line impedance on the accuracy of load sharing is analyzed. A robust droop control for a highvoltage microgrid is proposed based on the signal detection on the high-voltage side of the coupling transformer. For a high-voltage microgrid, the equivalent impedance of coupling transformer connecting distributed generator with the grid is usually the dominate factor. Compared with the conventional droop control strategy, the proposed control method in this paper detects the feedback signal from the high-voltage side of the coupling transformer. The impact of line impedance on the load sharing accuracy can be mitigated significantly. The proposed droop control only changes the detection point of the feedback signal, thus it is easy to be implemented. The PSCAD/EMTDC simulation results show the effectiveness of the proposed robust droop control concept in load sharing and voltage regulation with highly accuracy.
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spelling doaj.art-8c91f29fa3924ad2a5b37b6ab4590f742022-12-21T21:24:57ZengIEEEJournal of Modern Power Systems and Clean Energy2196-54202016-01-0141768610.1007/s40565-015-0176-18939512Droop control method for load share and voltage regulation in high-voltage microgridsZhikang Shuai0Shanglin Mo1Jun Wang2Z. John Shen3Wei Tian4Yan Feng5National Power Transformation and Control Engineering Technology Research Center, Hunan University,Changsha,China,410082National Power Transformation and Control Engineering Technology Research Center, Hunan University,Changsha,China,410082National Power Transformation and Control Engineering Technology Research Center, Hunan University,Changsha,China,410082Electrical and Computer Engineering, Illinois Institute of Technology,Chicago,IL,USA,60616Electrical and Computer Engineering, Illinois Institute of Technology,Chicago,IL,USA,60616National Power Transformation and Control Engineering Technology Research Center, Hunan University,Changsha,China,410082When the line impedance is considered in the microgrid, the accuracy of load sharing will decrease. In this paper, the impact of line impedance on the accuracy of load sharing is analyzed. A robust droop control for a highvoltage microgrid is proposed based on the signal detection on the high-voltage side of the coupling transformer. For a high-voltage microgrid, the equivalent impedance of coupling transformer connecting distributed generator with the grid is usually the dominate factor. Compared with the conventional droop control strategy, the proposed control method in this paper detects the feedback signal from the high-voltage side of the coupling transformer. The impact of line impedance on the load sharing accuracy can be mitigated significantly. The proposed droop control only changes the detection point of the feedback signal, thus it is easy to be implemented. The PSCAD/EMTDC simulation results show the effectiveness of the proposed robust droop control concept in load sharing and voltage regulation with highly accuracy.https://ieeexplore.ieee.org/document/8939512/MicrogridHigh-voltageCoupling transformerDroop controlAccreted load sharingVoltage regulation
spellingShingle Zhikang Shuai
Shanglin Mo
Jun Wang
Z. John Shen
Wei Tian
Yan Feng
Droop control method for load share and voltage regulation in high-voltage microgrids
Journal of Modern Power Systems and Clean Energy
Microgrid
High-voltage
Coupling transformer
Droop control
Accreted load sharing
Voltage regulation
title Droop control method for load share and voltage regulation in high-voltage microgrids
title_full Droop control method for load share and voltage regulation in high-voltage microgrids
title_fullStr Droop control method for load share and voltage regulation in high-voltage microgrids
title_full_unstemmed Droop control method for load share and voltage regulation in high-voltage microgrids
title_short Droop control method for load share and voltage regulation in high-voltage microgrids
title_sort droop control method for load share and voltage regulation in high voltage microgrids
topic Microgrid
High-voltage
Coupling transformer
Droop control
Accreted load sharing
Voltage regulation
url https://ieeexplore.ieee.org/document/8939512/
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AT shanglinmo droopcontrolmethodforloadshareandvoltageregulationinhighvoltagemicrogrids
AT junwang droopcontrolmethodforloadshareandvoltageregulationinhighvoltagemicrogrids
AT zjohnshen droopcontrolmethodforloadshareandvoltageregulationinhighvoltagemicrogrids
AT weitian droopcontrolmethodforloadshareandvoltageregulationinhighvoltagemicrogrids
AT yanfeng droopcontrolmethodforloadshareandvoltageregulationinhighvoltagemicrogrids