Nonlinear control design for voltage source converters in weak AC grids

Javad Khazaei; Zhenghong Tu; Arash Asrari; Wenxin Liu

doi:10.1109/TPEC48276.2020.9042558

Nonlinear control design for voltage source converters in weak AC grids

Javad Khazaei
, Zhenghong Tu
, Arash Asrari
, Wenxin Liu

School of Science, Engineering & Technology (Harrisburg)

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

4 Scopus citations

Abstract

Massive integration of converter-based renewable energy sources into power systems through weak AC grid has become a dilemma in recent years. This paper investigates the design of a robust nonlinear multi-input-multi-output (MIMO) controller for voltage source converters (VSCs) connected to weak AC grids. Feedback linearization method is used to find the controller equations and design the inputs to regulate the active power and output voltage of the converter. With this approach, the controller is designed in a way that the grid impedance impact on the stability of the converter system is significantly reduced. The robustness of the proposed controller is evaluated using time-domain simulations of a grid-connected VSC enhanced with the nonlinear controller in various case studies. The results illustrate a significant improvement compared to existing approaches.

Original language	English (US)
Title of host publication	2020 IEEE Texas Power and Energy Conference, TPEC 2020
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781728144368
DOIs	https://doi.org/10.1109/TPEC48276.2020.9042558
State	Published - Feb 2020
Event	2020 IEEE Texas Power and Energy Conference, TPEC 2020 - College Station, United States Duration: Feb 6 2020 → Feb 7 2020

Publication series

Name	2020 IEEE Texas Power and Energy Conference, TPEC 2020

Conference

Conference	2020 IEEE Texas Power and Energy Conference, TPEC 2020
Country/Territory	United States
City	College Station
Period	2/6/20 → 2/7/20

UN SDGs

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

SDG 7 Affordable and Clean Energy

All Science Journal Classification (ASJC) codes

Computer Networks and Communications
Energy Engineering and Power Technology
Electrical and Electronic Engineering
Safety, Risk, Reliability and Quality

Access to Document

10.1109/TPEC48276.2020.9042558

Cite this

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title = "Nonlinear control design for voltage source converters in weak AC grids",

abstract = "Massive integration of converter-based renewable energy sources into power systems through weak AC grid has become a dilemma in recent years. This paper investigates the design of a robust nonlinear multi-input-multi-output (MIMO) controller for voltage source converters (VSCs) connected to weak AC grids. Feedback linearization method is used to find the controller equations and design the inputs to regulate the active power and output voltage of the converter. With this approach, the controller is designed in a way that the grid impedance impact on the stability of the converter system is significantly reduced. The robustness of the proposed controller is evaluated using time-domain simulations of a grid-connected VSC enhanced with the nonlinear controller in various case studies. The results illustrate a significant improvement compared to existing approaches.",

author = "Javad Khazaei and Zhenghong Tu and Arash Asrari and Wenxin Liu",

note = "Publisher Copyright: {\textcopyright} 2020 IEEE.; 2020 IEEE Texas Power and Energy Conference, TPEC 2020 ; Conference date: 06-02-2020 Through 07-02-2020",

year = "2020",

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doi = "10.1109/TPEC48276.2020.9042558",

language = "English (US)",

series = "2020 IEEE Texas Power and Energy Conference, TPEC 2020",

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

booktitle = "2020 IEEE Texas Power and Energy Conference, TPEC 2020",

address = "United States",

}

Khazaei, J, Tu, Z, Asrari, A & Liu, W 2020, Nonlinear control design for voltage source converters in weak AC grids. in 2020 IEEE Texas Power and Energy Conference, TPEC 2020., 9042558, 2020 IEEE Texas Power and Energy Conference, TPEC 2020, Institute of Electrical and Electronics Engineers Inc., 2020 IEEE Texas Power and Energy Conference, TPEC 2020, College Station, United States, 2/6/20. https://doi.org/10.1109/TPEC48276.2020.9042558

Nonlinear control design for voltage source converters in weak AC grids. / Khazaei, Javad; Tu, Zhenghong; Asrari, Arash et al.
2020 IEEE Texas Power and Energy Conference, TPEC 2020. Institute of Electrical and Electronics Engineers Inc., 2020. 9042558 (2020 IEEE Texas Power and Energy Conference, TPEC 2020).

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

TY - GEN

T1 - Nonlinear control design for voltage source converters in weak AC grids

AU - Khazaei, Javad

AU - Tu, Zhenghong

AU - Asrari, Arash

AU - Liu, Wenxin

PY - 2020/2

Y1 - 2020/2

N2 - Massive integration of converter-based renewable energy sources into power systems through weak AC grid has become a dilemma in recent years. This paper investigates the design of a robust nonlinear multi-input-multi-output (MIMO) controller for voltage source converters (VSCs) connected to weak AC grids. Feedback linearization method is used to find the controller equations and design the inputs to regulate the active power and output voltage of the converter. With this approach, the controller is designed in a way that the grid impedance impact on the stability of the converter system is significantly reduced. The robustness of the proposed controller is evaluated using time-domain simulations of a grid-connected VSC enhanced with the nonlinear controller in various case studies. The results illustrate a significant improvement compared to existing approaches.

AB - Massive integration of converter-based renewable energy sources into power systems through weak AC grid has become a dilemma in recent years. This paper investigates the design of a robust nonlinear multi-input-multi-output (MIMO) controller for voltage source converters (VSCs) connected to weak AC grids. Feedback linearization method is used to find the controller equations and design the inputs to regulate the active power and output voltage of the converter. With this approach, the controller is designed in a way that the grid impedance impact on the stability of the converter system is significantly reduced. The robustness of the proposed controller is evaluated using time-domain simulations of a grid-connected VSC enhanced with the nonlinear controller in various case studies. The results illustrate a significant improvement compared to existing approaches.

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U2 - 10.1109/TPEC48276.2020.9042558

DO - 10.1109/TPEC48276.2020.9042558

M3 - Conference contribution

AN - SCOPUS:85083075371

T3 - 2020 IEEE Texas Power and Energy Conference, TPEC 2020

BT - 2020 IEEE Texas Power and Energy Conference, TPEC 2020

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2020 IEEE Texas Power and Energy Conference, TPEC 2020

Y2 - 6 February 2020 through 7 February 2020

ER -

Nonlinear control design for voltage source converters in weak AC grids

Abstract

Publication series

Conference

UN SDGs

All Science Journal Classification (ASJC) codes

Access to Document

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