Impedance Stability Analysis and Enhancement Strategies for Photovoltaic-Storage Microgrids

Zhengtong Yang; Jinyu Wang; Wenxin Yi; Lei Chen; Haoran Wang; Bobo Zhang; Zhijie Li; Jiapeng Xu

doi:10.1109/CEEPE69795.2026.11552288

Impedance Stability Analysis and Enhancement Strategies for Photovoltaic-Storage Microgrids

Zhengtong Yang
, Jinyu Wang
, Wenxin Yi
, Lei Chen
, Haoran Wang
, Bobo Zhang
, Zhijie Li
, Jiapeng Xu

School of Electrical Engineering
Ltd.

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

Abstract

With the rapid development of distributed power sources and energy storage integration, the power supply reliability of distribution networks has become a prominent issue. It is urgent to fully utilize the adjustable resources and controllable equipment of the active distribution network to improve the power supply reliability of the distribution network. Distribution substations powered by power electronic converters face severe instability risks due to their low inertia, weak damping characteristics, and lack of frequency and voltage support from large power grids. This paper first establishes an impedance model for distribution substations operating independently when disconnected from the grid, and analyzes the impact of system parameters on system stability based on the established model. Then, based on the analysis results, a method to enhance stability by reshaping the converter impedance characteristics is proposed. Finally, the analysis results and improvement strategy are verified through simulations in MATLAB/SIMULINK.

Original language	English
Title of host publication	2026 9th International Conference on Energy, Electrical and Power Engineering, CEEPE 2026
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	1494-1499
Number of pages	6
ISBN (Electronic)	9798331550295
DOIs	https://doi.org/10.1109/CEEPE69795.2026.11552288
State	Published - 2026
Externally published	Yes
Event	9th International Conference on Energy, Electrical and Power Engineering, CEEPE 2026 - Nanjing, China Duration: 17 Apr 2026 → 19 Apr 2026

Publication series

Name	2026 9th International Conference on Energy, Electrical and Power Engineering, CEEPE 2026

Conference

Conference	9th International Conference on Energy, Electrical and Power Engineering, CEEPE 2026
Country/Territory	China
City	Nanjing
Period	17/04/26 → 19/04/26

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

harmonic linearization
impedance remodeling
impedance stability
isolated microgrid

Access to Document

10.1109/CEEPE69795.2026.11552288

Cite this

Yang, Z., Wang, J., Yi, W., Chen, L., Wang, H., Zhang, B., Li, Z., & Xu, J. (2026). Impedance Stability Analysis and Enhancement Strategies for Photovoltaic-Storage Microgrids. In 2026 9th International Conference on Energy, Electrical and Power Engineering, CEEPE 2026 (pp. 1494-1499). (2026 9th International Conference on Energy, Electrical and Power Engineering, CEEPE 2026). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/CEEPE69795.2026.11552288

Yang, Zhengtong ; Wang, Jinyu ; Yi, Wenxin et al. / Impedance Stability Analysis and Enhancement Strategies for Photovoltaic-Storage Microgrids. 2026 9th International Conference on Energy, Electrical and Power Engineering, CEEPE 2026. Institute of Electrical and Electronics Engineers Inc., 2026. pp. 1494-1499 (2026 9th International Conference on Energy, Electrical and Power Engineering, CEEPE 2026).

@inproceedings{97abe74ee2e74f31bc798a8f583870db,

title = "Impedance Stability Analysis and Enhancement Strategies for Photovoltaic-Storage Microgrids",

abstract = "With the rapid development of distributed power sources and energy storage integration, the power supply reliability of distribution networks has become a prominent issue. It is urgent to fully utilize the adjustable resources and controllable equipment of the active distribution network to improve the power supply reliability of the distribution network. Distribution substations powered by power electronic converters face severe instability risks due to their low inertia, weak damping characteristics, and lack of frequency and voltage support from large power grids. This paper first establishes an impedance model for distribution substations operating independently when disconnected from the grid, and analyzes the impact of system parameters on system stability based on the established model. Then, based on the analysis results, a method to enhance stability by reshaping the converter impedance characteristics is proposed. Finally, the analysis results and improvement strategy are verified through simulations in MATLAB/SIMULINK.",

keywords = "harmonic linearization, impedance remodeling, impedance stability, isolated microgrid",

author = "Zhengtong Yang and Jinyu Wang and Wenxin Yi and Lei Chen and Haoran Wang and Bobo Zhang and Zhijie Li and Jiapeng Xu",

note = "Publisher Copyright: {\textcopyright} 2026 IEEE.; 9th International Conference on Energy, Electrical and Power Engineering, CEEPE 2026 ; Conference date: 17-04-2026 Through 19-04-2026",

year = "2026",

doi = "10.1109/CEEPE69795.2026.11552288",

language = "英语",

series = "2026 9th International Conference on Energy, Electrical and Power Engineering, CEEPE 2026",

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

pages = "1494--1499",

booktitle = "2026 9th International Conference on Energy, Electrical and Power Engineering, CEEPE 2026",

}

Yang, Z, Wang, J, Yi, W, Chen, L, Wang, H, Zhang, B, Li, Z & Xu, J 2026, Impedance Stability Analysis and Enhancement Strategies for Photovoltaic-Storage Microgrids. in 2026 9th International Conference on Energy, Electrical and Power Engineering, CEEPE 2026. 2026 9th International Conference on Energy, Electrical and Power Engineering, CEEPE 2026, Institute of Electrical and Electronics Engineers Inc., pp. 1494-1499, 9th International Conference on Energy, Electrical and Power Engineering, CEEPE 2026, Nanjing, China, 17/04/26. https://doi.org/10.1109/CEEPE69795.2026.11552288

Impedance Stability Analysis and Enhancement Strategies for Photovoltaic-Storage Microgrids. / Yang, Zhengtong; Wang, Jinyu; Yi, Wenxin et al.
2026 9th International Conference on Energy, Electrical and Power Engineering, CEEPE 2026. Institute of Electrical and Electronics Engineers Inc., 2026. p. 1494-1499 (2026 9th International Conference on Energy, Electrical and Power Engineering, CEEPE 2026).

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

TY - GEN

T1 - Impedance Stability Analysis and Enhancement Strategies for Photovoltaic-Storage Microgrids

AU - Yang, Zhengtong

AU - Wang, Jinyu

AU - Yi, Wenxin

AU - Chen, Lei

AU - Wang, Haoran

AU - Zhang, Bobo

AU - Li, Zhijie

AU - Xu, Jiapeng

PY - 2026

Y1 - 2026

N2 - With the rapid development of distributed power sources and energy storage integration, the power supply reliability of distribution networks has become a prominent issue. It is urgent to fully utilize the adjustable resources and controllable equipment of the active distribution network to improve the power supply reliability of the distribution network. Distribution substations powered by power electronic converters face severe instability risks due to their low inertia, weak damping characteristics, and lack of frequency and voltage support from large power grids. This paper first establishes an impedance model for distribution substations operating independently when disconnected from the grid, and analyzes the impact of system parameters on system stability based on the established model. Then, based on the analysis results, a method to enhance stability by reshaping the converter impedance characteristics is proposed. Finally, the analysis results and improvement strategy are verified through simulations in MATLAB/SIMULINK.

AB - With the rapid development of distributed power sources and energy storage integration, the power supply reliability of distribution networks has become a prominent issue. It is urgent to fully utilize the adjustable resources and controllable equipment of the active distribution network to improve the power supply reliability of the distribution network. Distribution substations powered by power electronic converters face severe instability risks due to their low inertia, weak damping characteristics, and lack of frequency and voltage support from large power grids. This paper first establishes an impedance model for distribution substations operating independently when disconnected from the grid, and analyzes the impact of system parameters on system stability based on the established model. Then, based on the analysis results, a method to enhance stability by reshaping the converter impedance characteristics is proposed. Finally, the analysis results and improvement strategy are verified through simulations in MATLAB/SIMULINK.

KW - harmonic linearization

KW - impedance remodeling

KW - impedance stability

KW - isolated microgrid

UR - https://www.scopus.com/pages/publications/105042781176

U2 - 10.1109/CEEPE69795.2026.11552288

DO - 10.1109/CEEPE69795.2026.11552288

M3 - 会议稿件

AN - SCOPUS:105042781176

T3 - 2026 9th International Conference on Energy, Electrical and Power Engineering, CEEPE 2026

SP - 1494

EP - 1499

BT - 2026 9th International Conference on Energy, Electrical and Power Engineering, CEEPE 2026

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 9th International Conference on Energy, Electrical and Power Engineering, CEEPE 2026

Y2 - 17 April 2026 through 19 April 2026

ER -

Yang Z, Wang J, Yi W, Chen L, Wang H, Zhang B et al. Impedance Stability Analysis and Enhancement Strategies for Photovoltaic-Storage Microgrids. In 2026 9th International Conference on Energy, Electrical and Power Engineering, CEEPE 2026. Institute of Electrical and Electronics Engineers Inc. 2026. p. 1494-1499. (2026 9th International Conference on Energy, Electrical and Power Engineering, CEEPE 2026). doi: 10.1109/CEEPE69795.2026.11552288

Impedance Stability Analysis and Enhancement Strategies for Photovoltaic-Storage Microgrids

Abstract

Publication series

Conference

UN SDGs

Keywords

Access to Document

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