Modeling, Oscillation Analysis and Distributed Stabilization Control of Autonomous PV-based Microgrids

Zhuoli Zhao; Jindian Xie; Shaoqing Gong; Xi Luo; Yuewu Wang; Chun Sing Lai; Ping Yang; Loi Lei Lai; Josep M. Guerrero

doi:10.17775/CSEEJPES.2021.07570

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Modeling, Oscillation Analysis and Distributed Stabilization Control of Autonomous PV-based Microgrids

Regular Papers | 更新时间：2026-10-15

- Modeling, Oscillation Analysis and Distributed Stabilization Control of Autonomous PV-based Microgrids
- CSEE Journal of Power and Energy Systems Vol. 9, Issue 3, Pages: 921-936(2023)
- 作者机构：
  
  1. Department of Electrical Engineering, School of Automation, Guangdong University of Technology,Guangzhou,China
  2. School of Automation, Guangxi University of Science and Technology,Liuzhou,China
  3. Department of Electronic and Electrical Engineering, Brunel University London,London,UK
  4. Key Laboratory of Clean Energy Technology of Guangdong Province, South China University of Technology,Guangzhou,China
  5. Department of Energy Technology, Aalborg University, Aalborg,Denmark
- 作者简介：
- 基金信息：
- DOI：10.17775/CSEEJPES.2021.07570
  CLC：
- Published：01 May 2023
- 稿件说明：
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Zhuoli Zhao, Jindian Xie, Shaoqing Gong, et al. Modeling, Oscillation Analysis and Distributed Stabilization Control of Autonomous PV-based Microgrids[J]. CSEE Journal of Power and Energy Systems, 2023, 9(3): 921-936.
DOI：

Zhuoli Zhao, Jindian Xie, Shaoqing Gong, et al. Modeling, Oscillation Analysis and Distributed Stabilization Control of Autonomous PV-based Microgrids[J]. CSEE Journal of Power and Energy Systems, 2023, 9(3): 921-936. DOI： 10.17775/CSEEJPES.2021.07570.

摘要

Abstract

Driven by rising energy demand and the goal of carbon neutrality

renewable energy generations (REGs)

especially photovoltaic (PV) generations

are widely used in the urban power energy systems. While the intelligent control of microgrids (MG) brings economic and efficient operation

its potential stability problem cannot be ignored. To date

most of the research on modeling

analyzing and enhancing the stability of MG usually assume the DC-link as an ideal voltage source. However

this practice of ignoring the dynamics of DC-link may omit the latent oscillation phenomena of autonomous PV-based MG. First

this paper establishes a complete dynamic model of autonomous PV-based MG including PV panels and DC-link. Different from previous conclusions of idealizing DC-link dynamics

participation factor analysis finds the potential impact of DC-link dynamics on system dynamic performance

and different influence factors including critical control parameters and non-linear <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$V-I$ output characteristic of PV array are considered to further reveal oscillation mechanisms. Second

based on the average consensus algorithm

a distributed stabilization controller with strong robustness is proposed to enhance stability of the PV-based MG

which does not affect the steady-state performance of the system. Finally

the correctness of all theoretical analysis and the effectiveness of the proposed controller are verified by time domain simulation and hardware-in-loop tests.

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