An Improved Nonlinear Droop Control Method Applied to DC Microgrid

Fan Li; Shengrong Zhuo; Yigeng Huangfu; Xiaopeng Wang; Shaolin Song; Ziyu Gan

doi:10.1109/IAS54024.2023.10407011

An Improved Nonlinear Droop Control Method Applied to DC Microgrid

Fan Li
, Shengrong Zhuo
, Yigeng Huangfu
, Xiaopeng Wang
, Shaolin Song
, Ziyu Gan

School of Automation

Northwestern Polytechnical University Xian

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

2 Scopus citations

Abstract

Droop control can achieve load sharing among paralleled sources in DC microgrid. But pursuing high allocation accuracy will cause a voltage variation on the bus. To face the trade-off between better current sharing accuracy and slighter voltage variation in traditional linear droop control method, an improved nonlinear droop control method was proposed in this paper. Aiming at the limitation of existing nonlinear droop method, which is low current sharing accuracy in light load, the proposed fitting curve combined linear and nonlinear droop curves. With both linear and nonlinear properties, it can improve the performance of nonlinear control method especially in light load. The simulation was carried out in Matlab/Simulink, and the superiority of this method was verified.

Original language	English
Title of host publication	2023 IEEE Industry Applications Society Annual Meeting, IAS 2023
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9798350320169
DOIs	https://doi.org/10.1109/IAS54024.2023.10407011
State	Published - 2023
Event	2023 IEEE Industry Applications Society Annual Meeting, IAS 2023 - Nashville, United States Duration: 29 Oct 2023 → 2 Nov 2023

Publication series

Name	2023 IEEE Industry Applications Society Annual Meeting, IAS 2023

Conference

Conference	2023 IEEE Industry Applications Society Annual Meeting, IAS 2023
Country/Territory	United States
City	Nashville
Period	29/10/23 → 2/11/23

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

curve fitting
DC microgrid
droop control
load sharing
nonlinear

Access to Document

10.1109/IAS54024.2023.10407011

Cite this

Li, F., Zhuo, S., Huangfu, Y., Wang, X., Song, S., & Gan, Z. (2023). An Improved Nonlinear Droop Control Method Applied to DC Microgrid. In 2023 IEEE Industry Applications Society Annual Meeting, IAS 2023 (2023 IEEE Industry Applications Society Annual Meeting, IAS 2023). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IAS54024.2023.10407011

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title = "An Improved Nonlinear Droop Control Method Applied to DC Microgrid",

abstract = "Droop control can achieve load sharing among paralleled sources in DC microgrid. But pursuing high allocation accuracy will cause a voltage variation on the bus. To face the trade-off between better current sharing accuracy and slighter voltage variation in traditional linear droop control method, an improved nonlinear droop control method was proposed in this paper. Aiming at the limitation of existing nonlinear droop method, which is low current sharing accuracy in light load, the proposed fitting curve combined linear and nonlinear droop curves. With both linear and nonlinear properties, it can improve the performance of nonlinear control method especially in light load. The simulation was carried out in Matlab/Simulink, and the superiority of this method was verified.",

keywords = "curve fitting, DC microgrid, droop control, load sharing, nonlinear",

author = "Fan Li and Shengrong Zhuo and Yigeng Huangfu and Xiaopeng Wang and Shaolin Song and Ziyu Gan",

note = "Publisher Copyright: {\textcopyright} 2023 IEEE.; 2023 IEEE Industry Applications Society Annual Meeting, IAS 2023 ; Conference date: 29-10-2023 Through 02-11-2023",

year = "2023",

doi = "10.1109/IAS54024.2023.10407011",

language = "英语",

series = "2023 IEEE Industry Applications Society Annual Meeting, IAS 2023",

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

booktitle = "2023 IEEE Industry Applications Society Annual Meeting, IAS 2023",

}

Li, F, Zhuo, S, Huangfu, Y, Wang, X, Song, S & Gan, Z 2023, An Improved Nonlinear Droop Control Method Applied to DC Microgrid. in 2023 IEEE Industry Applications Society Annual Meeting, IAS 2023. 2023 IEEE Industry Applications Society Annual Meeting, IAS 2023, Institute of Electrical and Electronics Engineers Inc., 2023 IEEE Industry Applications Society Annual Meeting, IAS 2023, Nashville, United States, 29/10/23. https://doi.org/10.1109/IAS54024.2023.10407011

An Improved Nonlinear Droop Control Method Applied to DC Microgrid. / Li, Fan; Zhuo, Shengrong; Huangfu, Yigeng et al.
2023 IEEE Industry Applications Society Annual Meeting, IAS 2023. Institute of Electrical and Electronics Engineers Inc., 2023. (2023 IEEE Industry Applications Society Annual Meeting, IAS 2023).

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

TY - GEN

T1 - An Improved Nonlinear Droop Control Method Applied to DC Microgrid

AU - Li, Fan

AU - Zhuo, Shengrong

AU - Huangfu, Yigeng

AU - Wang, Xiaopeng

AU - Song, Shaolin

AU - Gan, Ziyu

PY - 2023

Y1 - 2023

N2 - Droop control can achieve load sharing among paralleled sources in DC microgrid. But pursuing high allocation accuracy will cause a voltage variation on the bus. To face the trade-off between better current sharing accuracy and slighter voltage variation in traditional linear droop control method, an improved nonlinear droop control method was proposed in this paper. Aiming at the limitation of existing nonlinear droop method, which is low current sharing accuracy in light load, the proposed fitting curve combined linear and nonlinear droop curves. With both linear and nonlinear properties, it can improve the performance of nonlinear control method especially in light load. The simulation was carried out in Matlab/Simulink, and the superiority of this method was verified.

AB - Droop control can achieve load sharing among paralleled sources in DC microgrid. But pursuing high allocation accuracy will cause a voltage variation on the bus. To face the trade-off between better current sharing accuracy and slighter voltage variation in traditional linear droop control method, an improved nonlinear droop control method was proposed in this paper. Aiming at the limitation of existing nonlinear droop method, which is low current sharing accuracy in light load, the proposed fitting curve combined linear and nonlinear droop curves. With both linear and nonlinear properties, it can improve the performance of nonlinear control method especially in light load. The simulation was carried out in Matlab/Simulink, and the superiority of this method was verified.

KW - curve fitting

KW - DC microgrid

KW - droop control

KW - load sharing

KW - nonlinear

UR - https://www.scopus.com/pages/publications/85186118965

U2 - 10.1109/IAS54024.2023.10407011

DO - 10.1109/IAS54024.2023.10407011

M3 - 会议稿件

AN - SCOPUS:85186118965

T3 - 2023 IEEE Industry Applications Society Annual Meeting, IAS 2023

BT - 2023 IEEE Industry Applications Society Annual Meeting, IAS 2023

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2023 IEEE Industry Applications Society Annual Meeting, IAS 2023

Y2 - 29 October 2023 through 2 November 2023

ER -

An Improved Nonlinear Droop Control Method Applied to DC Microgrid

Abstract

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UN SDGs

Keywords

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