Design of PI controllers for a grid-connected VSC based on optimal disturbance rejection

Wesam Taha; Abdul R. Beig; Igor Boiko

doi:10.1109/IECON.2015.7392386

Design of PI controllers for a grid-connected VSC based on optimal disturbance rejection

Wesam Taha, Abdul R. Beig, Igor Boiko

Electrical Engineering

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

10 Scopus citations

Abstract

Voltage source converter (VSC) plays a major role in the AC/DC interconnection. Its control stands as a significant issue as it determines the stability and performance of the system. Therefore, utilization of a control algorithm that can robustly reject disturbances is highly appreciated. This paper proposes a new approach for PI-parameters selection, used in the decoupled dq-vector control scheme, based on first-order-plus-time-delay (FOPTD) models, for which analytical formulas for optimal controller design/tuning can be obtained. Furthermore, a non-linear optimization algorithm is developed in order to achieve the optimum disturbance rejection in terms of minimizing the integral time absolute of the error (ITAE) performance index. The cost function employs a weighted-sum criterion for two sources of disturbances, namely AC input voltage fluctuation and load disturbances, which may affect the regulated voltage. Simulation results demonstrate a very similar system performance using the FOPTD tuning parameters compared to the optimum ones where both yield a robust system against disturbances. The obtained results are also verified experimentally.

Original language	British English
Title of host publication	IECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	1954-1959
Number of pages	6
ISBN (Electronic)	9781479917624
DOIs	https://doi.org/10.1109/IECON.2015.7392386
State	Published - 2015
Event	41st Annual Conference of the IEEE Industrial Electronics Society, IECON 2015 - Yokohama, Japan Duration: 9 Nov 2015 → 12 Nov 2015

Publication series

Name	IECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society

Conference

Conference	41st Annual Conference of the IEEE Industrial Electronics Society, IECON 2015
Country/Territory	Japan
City	Yokohama
Period	9/11/15 → 12/11/15

Keywords

AC-DC power converters
optimal control
optimization
power conversion
power quality
vector control
voltage source converter

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10.1109/IECON.2015.7392386

Cite this

Taha, W., Beig, A. R., & Boiko, I. (2015). Design of PI controllers for a grid-connected VSC based on optimal disturbance rejection. In IECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society (pp. 1954-1959). Article 7392386 (IECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IECON.2015.7392386

Taha, Wesam ; Beig, Abdul R. ; Boiko, Igor. / Design of PI controllers for a grid-connected VSC based on optimal disturbance rejection. IECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society. Institute of Electrical and Electronics Engineers Inc., 2015. pp. 1954-1959 (IECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society).

@inproceedings{21d1eb93199f4ad59fe76de4b915a309,

title = "Design of PI controllers for a grid-connected VSC based on optimal disturbance rejection",

abstract = "Voltage source converter (VSC) plays a major role in the AC/DC interconnection. Its control stands as a significant issue as it determines the stability and performance of the system. Therefore, utilization of a control algorithm that can robustly reject disturbances is highly appreciated. This paper proposes a new approach for PI-parameters selection, used in the decoupled dq-vector control scheme, based on first-order-plus-time-delay (FOPTD) models, for which analytical formulas for optimal controller design/tuning can be obtained. Furthermore, a non-linear optimization algorithm is developed in order to achieve the optimum disturbance rejection in terms of minimizing the integral time absolute of the error (ITAE) performance index. The cost function employs a weighted-sum criterion for two sources of disturbances, namely AC input voltage fluctuation and load disturbances, which may affect the regulated voltage. Simulation results demonstrate a very similar system performance using the FOPTD tuning parameters compared to the optimum ones where both yield a robust system against disturbances. The obtained results are also verified experimentally.",

keywords = "AC-DC power converters, optimal control, optimization, power conversion, power quality, vector control, voltage source converter",

author = "Wesam Taha and Beig, {Abdul R.} and Igor Boiko",

note = "Publisher Copyright: {\textcopyright} 2015 IEEE.; 41st Annual Conference of the IEEE Industrial Electronics Society, IECON 2015 ; Conference date: 09-11-2015 Through 12-11-2015",

year = "2015",

doi = "10.1109/IECON.2015.7392386",

language = "British English",

series = "IECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society",

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

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Taha, W, Beig, AR & Boiko, I 2015, Design of PI controllers for a grid-connected VSC based on optimal disturbance rejection. in IECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society., 7392386, IECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society, Institute of Electrical and Electronics Engineers Inc., pp. 1954-1959, 41st Annual Conference of the IEEE Industrial Electronics Society, IECON 2015, Yokohama, Japan, 9/11/15. https://doi.org/10.1109/IECON.2015.7392386

Design of PI controllers for a grid-connected VSC based on optimal disturbance rejection. / Taha, Wesam; Beig, Abdul R.; Boiko, Igor.
IECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society. Institute of Electrical and Electronics Engineers Inc., 2015. p. 1954-1959 7392386 (IECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society).

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

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AU - Beig, Abdul R.

AU - Boiko, Igor

PY - 2015

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N2 - Voltage source converter (VSC) plays a major role in the AC/DC interconnection. Its control stands as a significant issue as it determines the stability and performance of the system. Therefore, utilization of a control algorithm that can robustly reject disturbances is highly appreciated. This paper proposes a new approach for PI-parameters selection, used in the decoupled dq-vector control scheme, based on first-order-plus-time-delay (FOPTD) models, for which analytical formulas for optimal controller design/tuning can be obtained. Furthermore, a non-linear optimization algorithm is developed in order to achieve the optimum disturbance rejection in terms of minimizing the integral time absolute of the error (ITAE) performance index. The cost function employs a weighted-sum criterion for two sources of disturbances, namely AC input voltage fluctuation and load disturbances, which may affect the regulated voltage. Simulation results demonstrate a very similar system performance using the FOPTD tuning parameters compared to the optimum ones where both yield a robust system against disturbances. The obtained results are also verified experimentally.

AB - Voltage source converter (VSC) plays a major role in the AC/DC interconnection. Its control stands as a significant issue as it determines the stability and performance of the system. Therefore, utilization of a control algorithm that can robustly reject disturbances is highly appreciated. This paper proposes a new approach for PI-parameters selection, used in the decoupled dq-vector control scheme, based on first-order-plus-time-delay (FOPTD) models, for which analytical formulas for optimal controller design/tuning can be obtained. Furthermore, a non-linear optimization algorithm is developed in order to achieve the optimum disturbance rejection in terms of minimizing the integral time absolute of the error (ITAE) performance index. The cost function employs a weighted-sum criterion for two sources of disturbances, namely AC input voltage fluctuation and load disturbances, which may affect the regulated voltage. Simulation results demonstrate a very similar system performance using the FOPTD tuning parameters compared to the optimum ones where both yield a robust system against disturbances. The obtained results are also verified experimentally.

KW - AC-DC power converters

KW - optimal control

KW - optimization

KW - power conversion

KW - power quality

KW - vector control

KW - voltage source converter

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BT - IECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 41st Annual Conference of the IEEE Industrial Electronics Society, IECON 2015

Y2 - 9 November 2015 through 12 November 2015

ER -

Taha W, Beig AR , Boiko I. Design of PI controllers for a grid-connected VSC based on optimal disturbance rejection. In IECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society. Institute of Electrical and Electronics Engineers Inc. 2015. p. 1954-1959. 7392386. (IECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society). doi: 10.1109/IECON.2015.7392386

Design of PI controllers for a grid-connected VSC based on optimal disturbance rejection

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Keywords

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