A Communication-less Secondary Voltage Control Based on Small-AC-Signal Injection for DC Microgrids

Pu Zhao; Zeng Liu; Qing Wang; Jinjun Liu

doi:10.1109/ECCE50734.2022.9947746

A Communication-less Secondary Voltage Control Based on Small-AC-Signal Injection for DC Microgrids

Pu Zhao
, Zeng Liu
, Qing Wang
, Jinjun Liu

School of Electrical Engineering

Xi'an Jiaotong University

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

3 Scopus citations

Abstract

In an islanded DC microgrid composed of droop-controlled parallel distributed generators, the DC bus voltage endures derivation as load changes. Several secondary voltage control (SVC) methods have been proposed to compensate for bus voltage derivation, divided into centralized and distributed SVC methods. However, the existing SVC methods have many limitations, including low reliability, high system complexity, poor bus voltage regulation, and sometimes even weakened load sharing performance under primary droop control. In this paper, a small-AC-signal (SACS)-injection-based SVC method in a communication-less manner is proposed to overcome these deficiencies. Firstly, the proposed SACS-injection-based SVC method is explained in detail. Then, comprehensive design procedures for essential control parameters are provided via the steady-state and dynamic analysis of the system. Finally, experiment and simulation results demonstrate the effectiveness and advantages of the proposed SACS-injection-based SVC method.

Original language	English
Title of host publication	2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781728193878
DOIs	https://doi.org/10.1109/ECCE50734.2022.9947746
State	Published - 2022
Event	2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022 - Detroit, United States Duration: 9 Oct 2022 → 13 Oct 2022

Publication series

Name	2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022

Conference

Conference	2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022
Country/Territory	United States
City	Detroit
Period	9/10/22 → 13/10/22

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

DC microgrids
secondary voltage control
small-AC-signal-injection-based

Access to Document

10.1109/ECCE50734.2022.9947746

Cite this

Zhao, P., Liu, Z., Wang, Q., & Liu, J. (2022). A Communication-less Secondary Voltage Control Based on Small-AC-Signal Injection for DC Microgrids. In 2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022 (2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ECCE50734.2022.9947746

@inproceedings{d5d49c41283c44bfb15328f46704721f,

title = "A Communication-less Secondary Voltage Control Based on Small-AC-Signal Injection for DC Microgrids",

abstract = "In an islanded DC microgrid composed of droop-controlled parallel distributed generators, the DC bus voltage endures derivation as load changes. Several secondary voltage control (SVC) methods have been proposed to compensate for bus voltage derivation, divided into centralized and distributed SVC methods. However, the existing SVC methods have many limitations, including low reliability, high system complexity, poor bus voltage regulation, and sometimes even weakened load sharing performance under primary droop control. In this paper, a small-AC-signal (SACS)-injection-based SVC method in a communication-less manner is proposed to overcome these deficiencies. Firstly, the proposed SACS-injection-based SVC method is explained in detail. Then, comprehensive design procedures for essential control parameters are provided via the steady-state and dynamic analysis of the system. Finally, experiment and simulation results demonstrate the effectiveness and advantages of the proposed SACS-injection-based SVC method.",

keywords = "DC microgrids, secondary voltage control, small-AC-signal-injection-based",

author = "Pu Zhao and Zeng Liu and Qing Wang and Jinjun Liu",

note = "Publisher Copyright: {\textcopyright} 2022 IEEE.; 2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022 ; Conference date: 09-10-2022 Through 13-10-2022",

year = "2022",

doi = "10.1109/ECCE50734.2022.9947746",

language = "英语",

series = "2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022",

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

booktitle = "2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022",

}

Zhao, P, Liu, Z, Wang, Q & Liu, J 2022, A Communication-less Secondary Voltage Control Based on Small-AC-Signal Injection for DC Microgrids. in 2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022. 2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022, Institute of Electrical and Electronics Engineers Inc., 2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022, Detroit, United States, 9/10/22. https://doi.org/10.1109/ECCE50734.2022.9947746

A Communication-less Secondary Voltage Control Based on Small-AC-Signal Injection for DC Microgrids. / Zhao, Pu; Liu, Zeng; Wang, Qing et al.
2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022. Institute of Electrical and Electronics Engineers Inc., 2022. (2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022).

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

TY - GEN

T1 - A Communication-less Secondary Voltage Control Based on Small-AC-Signal Injection for DC Microgrids

AU - Zhao, Pu

AU - Liu, Zeng

AU - Wang, Qing

AU - Liu, Jinjun

PY - 2022

Y1 - 2022

N2 - In an islanded DC microgrid composed of droop-controlled parallel distributed generators, the DC bus voltage endures derivation as load changes. Several secondary voltage control (SVC) methods have been proposed to compensate for bus voltage derivation, divided into centralized and distributed SVC methods. However, the existing SVC methods have many limitations, including low reliability, high system complexity, poor bus voltage regulation, and sometimes even weakened load sharing performance under primary droop control. In this paper, a small-AC-signal (SACS)-injection-based SVC method in a communication-less manner is proposed to overcome these deficiencies. Firstly, the proposed SACS-injection-based SVC method is explained in detail. Then, comprehensive design procedures for essential control parameters are provided via the steady-state and dynamic analysis of the system. Finally, experiment and simulation results demonstrate the effectiveness and advantages of the proposed SACS-injection-based SVC method.

AB - In an islanded DC microgrid composed of droop-controlled parallel distributed generators, the DC bus voltage endures derivation as load changes. Several secondary voltage control (SVC) methods have been proposed to compensate for bus voltage derivation, divided into centralized and distributed SVC methods. However, the existing SVC methods have many limitations, including low reliability, high system complexity, poor bus voltage regulation, and sometimes even weakened load sharing performance under primary droop control. In this paper, a small-AC-signal (SACS)-injection-based SVC method in a communication-less manner is proposed to overcome these deficiencies. Firstly, the proposed SACS-injection-based SVC method is explained in detail. Then, comprehensive design procedures for essential control parameters are provided via the steady-state and dynamic analysis of the system. Finally, experiment and simulation results demonstrate the effectiveness and advantages of the proposed SACS-injection-based SVC method.

KW - DC microgrids

KW - secondary voltage control

KW - small-AC-signal-injection-based

UR - https://www.scopus.com/pages/publications/85144044149

U2 - 10.1109/ECCE50734.2022.9947746

DO - 10.1109/ECCE50734.2022.9947746

M3 - 会议稿件

AN - SCOPUS:85144044149

T3 - 2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022

BT - 2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022

Y2 - 9 October 2022 through 13 October 2022

ER -

A Communication-less Secondary Voltage Control Based on Small-AC-Signal Injection for DC Microgrids

Abstract

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UN SDGs

Keywords

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