Small signal modeling and stability analysis on parallel photovoltaic inverters in microgrid

Hongpeng Liu; Lele Yu; Hui Wu; Guihua Liu; Wei Wang

doi:10.1109/ECCE.2015.7310190

Small signal modeling and stability analysis on parallel photovoltaic inverters in microgrid

Hongpeng Liu
, Lele Yu
, Hui Wu
, Guihua Liu
, Wei Wang

Harbin Institute of Technology

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

6 Scopus citations

Abstract

A small-signal model based on droop control and utilized in microgrid of photovoltaic (PV) inverters is designed in this paper. The parallel-inverter system composed of two 1kVA PV inverters with no communication line is built on the basis of small-signal model. The influence of droop coefficients on the system stability and dynamic response ability is analyzed by utilizing root locus analysis in Matlab. Through the analysis, proper droop coefficients are designed to suppress the circulating current and guarantee the system stable operation. Simulation and experimental results validate the correctness and feasibility of the small-signal model and choice of droop coefficients.

Original language	English
Title of host publication	2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	3754-3759
Number of pages	6
ISBN (Electronic)	9781467371506
DOIs	https://doi.org/10.1109/ECCE.2015.7310190
State	Published - 27 Oct 2015
Externally published	Yes
Event	7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015 - Montreal, Canada Duration: 20 Sep 2015 → 24 Sep 2015

Publication series

Name	2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015

Conference

Conference	7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015
Country/Territory	Canada
City	Montreal
Period	20/09/15 → 24/09/15

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

droop control
parallel inverterst
small-signal model
stability analysis

Access to Document

10.1109/ECCE.2015.7310190

Cite this

Liu, H., Yu, L., Wu, H., Liu, G., & Wang, W. (2015). Small signal modeling and stability analysis on parallel photovoltaic inverters in microgrid. In 2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015 (pp. 3754-3759). Article 7310190 (2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ECCE.2015.7310190

@inproceedings{7a824ba852bb441bb856eba5010aed86,

title = "Small signal modeling and stability analysis on parallel photovoltaic inverters in microgrid",

abstract = "A small-signal model based on droop control and utilized in microgrid of photovoltaic (PV) inverters is designed in this paper. The parallel-inverter system composed of two 1kVA PV inverters with no communication line is built on the basis of small-signal model. The influence of droop coefficients on the system stability and dynamic response ability is analyzed by utilizing root locus analysis in Matlab. Through the analysis, proper droop coefficients are designed to suppress the circulating current and guarantee the system stable operation. Simulation and experimental results validate the correctness and feasibility of the small-signal model and choice of droop coefficients.",

keywords = "droop control, parallel inverterst, small-signal model, stability analysis",

author = "Hongpeng Liu and Lele Yu and Hui Wu and Guihua Liu and Wei Wang",

note = "Publisher Copyright: {\textcopyright} 2015 IEEE.; 7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015 ; Conference date: 20-09-2015 Through 24-09-2015",

year = "2015",

month = oct,

day = "27",

doi = "10.1109/ECCE.2015.7310190",

language = "英语",

series = "2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015",

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

pages = "3754--3759",

booktitle = "2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015",

}

Liu, H, Yu, L, Wu, H, Liu, G & Wang, W 2015, Small signal modeling and stability analysis on parallel photovoltaic inverters in microgrid. in 2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015., 7310190, 2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015, Institute of Electrical and Electronics Engineers Inc., pp. 3754-3759, 7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015, Montreal, Canada, 20/09/15. https://doi.org/10.1109/ECCE.2015.7310190

Small signal modeling and stability analysis on parallel photovoltaic inverters in microgrid. / Liu, Hongpeng; Yu, Lele; Wu, Hui et al.
2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015. Institute of Electrical and Electronics Engineers Inc., 2015. p. 3754-3759 7310190 (2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015).

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

TY - GEN

T1 - Small signal modeling and stability analysis on parallel photovoltaic inverters in microgrid

AU - Liu, Hongpeng

AU - Yu, Lele

AU - Wu, Hui

AU - Liu, Guihua

AU - Wang, Wei

PY - 2015/10/27

Y1 - 2015/10/27

N2 - A small-signal model based on droop control and utilized in microgrid of photovoltaic (PV) inverters is designed in this paper. The parallel-inverter system composed of two 1kVA PV inverters with no communication line is built on the basis of small-signal model. The influence of droop coefficients on the system stability and dynamic response ability is analyzed by utilizing root locus analysis in Matlab. Through the analysis, proper droop coefficients are designed to suppress the circulating current and guarantee the system stable operation. Simulation and experimental results validate the correctness and feasibility of the small-signal model and choice of droop coefficients.

AB - A small-signal model based on droop control and utilized in microgrid of photovoltaic (PV) inverters is designed in this paper. The parallel-inverter system composed of two 1kVA PV inverters with no communication line is built on the basis of small-signal model. The influence of droop coefficients on the system stability and dynamic response ability is analyzed by utilizing root locus analysis in Matlab. Through the analysis, proper droop coefficients are designed to suppress the circulating current and guarantee the system stable operation. Simulation and experimental results validate the correctness and feasibility of the small-signal model and choice of droop coefficients.

KW - droop control

KW - parallel inverterst

KW - small-signal model

KW - stability analysis

UR - https://www.scopus.com/pages/publications/84963612262

U2 - 10.1109/ECCE.2015.7310190

DO - 10.1109/ECCE.2015.7310190

M3 - 会议稿件

AN - SCOPUS:84963612262

T3 - 2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015

SP - 3754

EP - 3759

BT - 2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015

Y2 - 20 September 2015 through 24 September 2015

ER -

Liu H, Yu L, Wu H, Liu G, Wang W. Small signal modeling and stability analysis on parallel photovoltaic inverters in microgrid. In 2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015. Institute of Electrical and Electronics Engineers Inc. 2015. p. 3754-3759. 7310190. (2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015). doi: 10.1109/ECCE.2015.7310190

Small signal modeling and stability analysis on parallel photovoltaic inverters in microgrid

Abstract

Publication series

Conference

UN SDGs

Keywords

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