Stability Analysis and Controller Synthesis for Digital Single-Loop Voltage-Controlled Inverters

Xiongfei Wang; Poh Chiang Loh; Frede Blaabjerg

doi:10.1109/APEC.2016.7468144

Stability Analysis and Controller Synthesis for Digital Single-Loop Voltage-Controlled Inverters

Xiongfei Wang, Poh Chiang Loh, Frede Blaabjerg

AAU Energy

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

4 Citations (Scopus)

Abstract

This paper analyzes first the stability of single-loop digital voltage control scheme for the LC-filtered voltage source inverters. It turns out that the phase lag, caused by the time delay of digital control system and by the use of integral controller, can stabilize the voltage loop without damping of LC-filter resonance. The stability regions are then identified with alternative voltage controller synthesized. For further widening the stability region, an active damping approach is proposed and co-designed with the voltage controller in the discrete z-domain. Simulations and experimental results of both 50-Hz and 400-Hz systems validate the theoretical analyses and the performance of the approach.

Original language	English
Title of host publication	Proceedings of the 31st Annual IEEE Applied Power Electronics Conference and Exposition (APEC)
Number of pages	8
Publisher	IEEE
Publication date	Mar 2016
Pages	2011-2018
ISBN (Print)	978-1-4673-8393-6 , 978-1-4673-9551-9
ISBN (Electronic)	978-1-4673-9550-2
DOIs	https://doi.org/10.1109/APEC.2016.7468144
Publication status	Published - Mar 2016
Event	2016 IEEE Applied Power Electronics Conference and Exposition (APEC) - Long Beach Convention and Entertainment Center, Long Beach, United States Duration: 20 Mar 2016 → 24 Mar 2016 http://www.ieee.org/conferences_events/conferences/conferencedetails/index.html?Conf_ID=32616

Conference

Conference	2016 IEEE Applied Power Electronics Conference and Exposition (APEC)
Location	Long Beach Convention and Entertainment Center
Country/Territory	United States
City	Long Beach
Period	20/03/2016 → 24/03/2016
Internet address	http://www.ieee.org/conferences_events/conferences/conferencedetails/index.html?Conf_ID=32616

Keywords

Time delay
Stability
Voltage-controlled inverters
LC-filter resonance

Access to Document

10.1109/APEC.2016.7468144

AUB Link

Search for the material in Aalborg University Library's search engine

HARMONY: HARMONY - Harmonic identification, mitigation and control in power electronics based power systems
Blaabjerg, F., Bak, C. L., Wang, X., Beres, R. N., Kwon, J., Gui, Y., Yoon, C. & Ebrahimzadeh, E.
European Research Counsil
01/02/2013 → 28/02/2018
Project: Research

Cite this

@inproceedings{48db14f3293847878e508185fdfe4473,

title = "Stability Analysis and Controller Synthesis for Digital Single-Loop Voltage-Controlled Inverters",

abstract = "This paper analyzes first the stability of single-loop digital voltage control scheme for the LC-filtered voltage source inverters. It turns out that the phase lag, caused by the time delay of digital control system and by the use of integral controller, can stabilize the voltage loop without damping of LC-filter resonance. The stability regions are then identified with alternative voltage controller synthesized. For further widening the stability region, an active damping approach is proposed and co-designed with the voltage controller in the discrete z-domain. Simulations and experimental results of both 50-Hz and 400-Hz systems validate the theoretical analyses and the performance of the approach.",

keywords = "Time delay, Stability, Voltage-controlled inverters, LC-filter resonance",

author = "Xiongfei Wang and Loh, {Poh Chiang} and Frede Blaabjerg",

year = "2016",

month = mar,

doi = "10.1109/APEC.2016.7468144",

language = "English",

isbn = "978-1-4673-8393-6 ",

pages = "2011--2018",

booktitle = "Proceedings of the 31st Annual IEEE Applied Power Electronics Conference and Exposition (APEC)",

publisher = "IEEE",

address = "United States",

note = "2016 IEEE Applied Power Electronics Conference and Exposition (APEC) ; Conference date: 20-03-2016 Through 24-03-2016",

url = "http://www.ieee.org/conferences_events/conferences/conferencedetails/index.html?Conf_ID=32616",

}

Wang, X, Loh, PC & Blaabjerg, F 2016, Stability Analysis and Controller Synthesis for Digital Single-Loop Voltage-Controlled Inverters. in Proceedings of the 31st Annual IEEE Applied Power Electronics Conference and Exposition (APEC). IEEE, pp. 2011-2018, 2016 IEEE Applied Power Electronics Conference and Exposition (APEC), Long Beach, United States, 20/03/2016. https://doi.org/10.1109/APEC.2016.7468144

Stability Analysis and Controller Synthesis for Digital Single-Loop Voltage-Controlled Inverters. / Wang, Xiongfei; Loh, Poh Chiang; Blaabjerg, Frede.
Proceedings of the 31st Annual IEEE Applied Power Electronics Conference and Exposition (APEC). IEEE, 2016. p. 2011-2018.

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

TY - GEN

T1 - Stability Analysis and Controller Synthesis for Digital Single-Loop Voltage-Controlled Inverters

AU - Wang, Xiongfei

AU - Loh, Poh Chiang

AU - Blaabjerg, Frede

PY - 2016/3

Y1 - 2016/3

N2 - This paper analyzes first the stability of single-loop digital voltage control scheme for the LC-filtered voltage source inverters. It turns out that the phase lag, caused by the time delay of digital control system and by the use of integral controller, can stabilize the voltage loop without damping of LC-filter resonance. The stability regions are then identified with alternative voltage controller synthesized. For further widening the stability region, an active damping approach is proposed and co-designed with the voltage controller in the discrete z-domain. Simulations and experimental results of both 50-Hz and 400-Hz systems validate the theoretical analyses and the performance of the approach.

AB - This paper analyzes first the stability of single-loop digital voltage control scheme for the LC-filtered voltage source inverters. It turns out that the phase lag, caused by the time delay of digital control system and by the use of integral controller, can stabilize the voltage loop without damping of LC-filter resonance. The stability regions are then identified with alternative voltage controller synthesized. For further widening the stability region, an active damping approach is proposed and co-designed with the voltage controller in the discrete z-domain. Simulations and experimental results of both 50-Hz and 400-Hz systems validate the theoretical analyses and the performance of the approach.

KW - Time delay

KW - Stability

KW - Voltage-controlled inverters

KW - LC-filter resonance

U2 - 10.1109/APEC.2016.7468144

DO - 10.1109/APEC.2016.7468144

M3 - Article in proceeding

SN - 978-1-4673-8393-6

SN - 978-1-4673-9551-9

SP - 2011

EP - 2018

BT - Proceedings of the 31st Annual IEEE Applied Power Electronics Conference and Exposition (APEC)

PB - IEEE

T2 - 2016 IEEE Applied Power Electronics Conference and Exposition (APEC)

Y2 - 20 March 2016 through 24 March 2016

ER -

Stability Analysis and Controller Synthesis for Digital Single-Loop Voltage-Controlled Inverters

Abstract

Conference

Keywords

Access to Document

AUB Link

Fingerprint

Projects

HARMONY: HARMONY - Harmonic identification, mitigation and control in power electronics based power systems

Cite this