Grid-voltage sensorless control of a converter under unbalanced conditions: On the design of a state observer

Jarno Kukkola; Marko Hinkkanen

doi:10.1109/ECCE.2016.7855134

Grid-voltage sensorless control of a converter under unbalanced conditions: On the design of a state observer

Jarno Kukkola
, Marko Hinkkanen

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

1 Citation (Scopus)

342 Downloads (Pure)

Abstract

This paper deals with grid-voltage sensorless synchronization and control under unbalanced grid conditions. A three-phase grid-connected converter equipped with an LCL filter is considered, and no other signals than the converter currents and the DC-link voltage are measured for control. An augmented adaptive state observer is proposed for estimation of the positive- and negative-sequence components of the grid voltage. The proposed observer is tested as a part of a sensorless control system. Experimental results show that the proposed method works well even in highly unbalanced grid conditions.

Original language	English
Title of host publication	IEEE Energy Conversion Congress and Exposition (ECCE 2016)
Place of Publication	Milwaukee, WI
Publisher	IEEE
Number of pages	8
ISBN (Print)	978-1-5090-0737-0
DOIs	https://doi.org/10.1109/ECCE.2016.7855134
Publication status	Published - 18 Sept 2016
MoE publication type	A4 Conference publication
Event	IEEE Energy Conversion Congress and Exposition - Milwaukee, United States Duration: 18 Sept 2016 → 22 Sept 2016 Conference number: 8

Publication series

Name	IEEE Energy Conversion Congress & Exposition
Publisher	IEEE
ISSN (Print)	2329-3721
ISSN (Electronic)	2329-3748

Conference

Conference	IEEE Energy Conversion Congress and Exposition
Abbreviated title	ECCE
Country/Territory	United States
City	Milwaukee
Period	18/09/2016 → 22/09/2016

Keywords

active front-end rectifier
grid-voltage sag
LCL filter
line-voltage sensorless
small-signal linearization

Access to Document

10.1109/ECCE.2016.7855134

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Accepted author manuscript, 694 KB

Cite this

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title = "Grid-voltage sensorless control of a converter under unbalanced conditions: On the design of a state observer",

abstract = "This paper deals with grid-voltage sensorless synchronization and control under unbalanced grid conditions. A three-phase grid-connected converter equipped with an LCL filter is considered, and no other signals than the converter currents and the DC-link voltage are measured for control. An augmented adaptive state observer is proposed for estimation of the positive- and negative-sequence components of the grid voltage. The proposed observer is tested as a part of a sensorless control system. Experimental results show that the proposed method works well even in highly unbalanced grid conditions.",

keywords = "active front-end rectifier, grid-voltage sag, LCL filter, line-voltage sensorless, small-signal linearization",

author = "Jarno Kukkola and Marko Hinkkanen",

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doi = "10.1109/ECCE.2016.7855134",

language = "English",

isbn = "978-1-5090-0737-0",

series = "IEEE Energy Conversion Congress \& Exposition",

publisher = "IEEE",

booktitle = "IEEE Energy Conversion Congress and Exposition (ECCE 2016)",

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note = "IEEE Energy Conversion Congress and Exposition, ECCE ; Conference date: 18-09-2016 Through 22-09-2016",

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Kukkola, J & Hinkkanen, M 2016, Grid-voltage sensorless control of a converter under unbalanced conditions: On the design of a state observer. in IEEE Energy Conversion Congress and Exposition (ECCE 2016). IEEE Energy Conversion Congress & Exposition, IEEE, Milwaukee, WI, IEEE Energy Conversion Congress and Exposition, Milwaukee, United States, 18/09/2016. https://doi.org/10.1109/ECCE.2016.7855134

Grid-voltage sensorless control of a converter under unbalanced conditions: On the design of a state observer. / Kukkola, Jarno; Hinkkanen, Marko.
IEEE Energy Conversion Congress and Exposition (ECCE 2016). Milwaukee, WI: IEEE, 2016. (IEEE Energy Conversion Congress & Exposition).

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

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AU - Hinkkanen, Marko

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Y1 - 2016/9/18

N2 - This paper deals with grid-voltage sensorless synchronization and control under unbalanced grid conditions. A three-phase grid-connected converter equipped with an LCL filter is considered, and no other signals than the converter currents and the DC-link voltage are measured for control. An augmented adaptive state observer is proposed for estimation of the positive- and negative-sequence components of the grid voltage. The proposed observer is tested as a part of a sensorless control system. Experimental results show that the proposed method works well even in highly unbalanced grid conditions.

AB - This paper deals with grid-voltage sensorless synchronization and control under unbalanced grid conditions. A three-phase grid-connected converter equipped with an LCL filter is considered, and no other signals than the converter currents and the DC-link voltage are measured for control. An augmented adaptive state observer is proposed for estimation of the positive- and negative-sequence components of the grid voltage. The proposed observer is tested as a part of a sensorless control system. Experimental results show that the proposed method works well even in highly unbalanced grid conditions.

KW - active front-end rectifier

KW - grid-voltage sag

KW - LCL filter

KW - line-voltage sensorless

KW - small-signal linearization

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DO - 10.1109/ECCE.2016.7855134

M3 - Conference article in proceedings

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T3 - IEEE Energy Conversion Congress & Exposition

BT - IEEE Energy Conversion Congress and Exposition (ECCE 2016)

PB - IEEE

CY - Milwaukee, WI

T2 - IEEE Energy Conversion Congress and Exposition

Y2 - 18 September 2016 through 22 September 2016

ER -

Grid-voltage sensorless control of a converter under unbalanced conditions: On the design of a state observer

Abstract

Publication series

Conference

Keywords

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