Impedance-Based Sensitivity-Criterion for Grid-Connected Three-Phase Inverters

Tommi Reinikka; Tomi Roinila; Roni Luhtala; Tuomas Messo

doi:10.1109/ECCE.2018.8557967

Impedance-Based Sensitivity-Criterion for Grid-Connected Three-Phase Inverters

Tommi Reinikka
, Tomi Roinila
, Roni Luhtala
, Tuomas Messo

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

2 Citations (Scopus)

Abstract

Utilization of renewable energy sources such as solar and wind power requires affordable, reliable and efficient methods for grid connection. Most often, grid-parallel inverters are applied. As the number of inverter-connected resources in the power grid increases, they start to have a significant effect on the dynamics of the power system. The inverters have been shown to produce harmonic oscillations. To avoid producing or amplifying the harmonic content in the power grid currents and voltages, sensitivity of the inverter against external distortion should be analyzed. This paper provides a method for sensitivity analysis of the inverter. The sensitivity is analyzed by applying a forbidden region in the complex plane, which is based on the maximum-peak criterion that is often applied in the field of control engineering. The system is defined to have robust stability if the minor-loop gain formed by the inverter output impedance and the grid impedance stays out from the forbidden region.

Original language	English
Title of host publication	The 10th Annual IEEE Energy Conversion Congress and Exposition (ECCE 2018)
Subtitle of host publication	September 23-27, 2018, Portland, Oregon, USA
Publisher	IEEE
Pages	4173-4178
Number of pages	6
ISBN (Electronic)	978-1-4799-7312-5
DOIs	https://doi.org/10.1109/ECCE.2018.8557967
Publication status	Published - 12 Apr 2018
Publication type	A4 Article in conference proceedings
Event	IEEE Energy Conversion Congress and Exposition - Portland, United States Duration: 23 Sept 2018 → 27 Sept 2018

Publication series

Name
ISSN (Electronic)	2329-3748

Conference

Conference	IEEE Energy Conversion Congress and Exposition
Country/Territory	United States
City	Portland
Period	23/09/18 → 27/09/18

UN SDGs

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

SDG 7 Affordable and Clean Energy

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Publication forum level 1

Access to Document

10.1109/ECCE.2018.8557967

Cite this

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title = "Impedance-Based Sensitivity-Criterion for Grid-Connected Three-Phase Inverters",

abstract = "Utilization of renewable energy sources such as solar and wind power requires affordable, reliable and efficient methods for grid connection. Most often, grid-parallel inverters are applied. As the number of inverter-connected resources in the power grid increases, they start to have a significant effect on the dynamics of the power system. The inverters have been shown to produce harmonic oscillations. To avoid producing or amplifying the harmonic content in the power grid currents and voltages, sensitivity of the inverter against external distortion should be analyzed. This paper provides a method for sensitivity analysis of the inverter. The sensitivity is analyzed by applying a forbidden region in the complex plane, which is based on the maximum-peak criterion that is often applied in the field of control engineering. The system is defined to have robust stability if the minor-loop gain formed by the inverter output impedance and the grid impedance stays out from the forbidden region.",

author = "Tommi Reinikka and Tomi Roinila and Roni Luhtala and Tuomas Messo",

note = "jufoid=57394; IEEE Energy Conversion Congress and Exposition ; Conference date: 23-09-2018 Through 27-09-2018",

year = "2018",

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doi = "10.1109/ECCE.2018.8557967",

language = "English",

publisher = "IEEE",

pages = "4173--4178",

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Reinikka, T, Roinila, T, Luhtala, R & Messo, T 2018, Impedance-Based Sensitivity-Criterion for Grid-Connected Three-Phase Inverters. in The 10th Annual IEEE Energy Conversion Congress and Exposition (ECCE 2018): September 23-27, 2018, Portland, Oregon, USA . IEEE, pp. 4173-4178, IEEE Energy Conversion Congress and Exposition, Portland, United States, 23/09/18. https://doi.org/10.1109/ECCE.2018.8557967

Impedance-Based Sensitivity-Criterion for Grid-Connected Three-Phase Inverters. / Reinikka, Tommi; Roinila, Tomi; Luhtala, Roni et al.
The 10th Annual IEEE Energy Conversion Congress and Exposition (ECCE 2018): September 23-27, 2018, Portland, Oregon, USA . IEEE, 2018. p. 4173-4178.

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

TY - GEN

T1 - Impedance-Based Sensitivity-Criterion for Grid-Connected Three-Phase Inverters

AU - Reinikka, Tommi

AU - Roinila, Tomi

AU - Luhtala, Roni

AU - Messo, Tuomas

N1 - jufoid=57394

PY - 2018/4/12

Y1 - 2018/4/12

N2 - Utilization of renewable energy sources such as solar and wind power requires affordable, reliable and efficient methods for grid connection. Most often, grid-parallel inverters are applied. As the number of inverter-connected resources in the power grid increases, they start to have a significant effect on the dynamics of the power system. The inverters have been shown to produce harmonic oscillations. To avoid producing or amplifying the harmonic content in the power grid currents and voltages, sensitivity of the inverter against external distortion should be analyzed. This paper provides a method for sensitivity analysis of the inverter. The sensitivity is analyzed by applying a forbidden region in the complex plane, which is based on the maximum-peak criterion that is often applied in the field of control engineering. The system is defined to have robust stability if the minor-loop gain formed by the inverter output impedance and the grid impedance stays out from the forbidden region.

AB - Utilization of renewable energy sources such as solar and wind power requires affordable, reliable and efficient methods for grid connection. Most often, grid-parallel inverters are applied. As the number of inverter-connected resources in the power grid increases, they start to have a significant effect on the dynamics of the power system. The inverters have been shown to produce harmonic oscillations. To avoid producing or amplifying the harmonic content in the power grid currents and voltages, sensitivity of the inverter against external distortion should be analyzed. This paper provides a method for sensitivity analysis of the inverter. The sensitivity is analyzed by applying a forbidden region in the complex plane, which is based on the maximum-peak criterion that is often applied in the field of control engineering. The system is defined to have robust stability if the minor-loop gain formed by the inverter output impedance and the grid impedance stays out from the forbidden region.

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M3 - Conference contribution

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BT - The 10th Annual IEEE Energy Conversion Congress and Exposition (ECCE 2018)

PB - IEEE

T2 - IEEE Energy Conversion Congress and Exposition

Y2 - 23 September 2018 through 27 September 2018

ER -

Impedance-Based Sensitivity-Criterion for Grid-Connected Three-Phase Inverters

Abstract

Publication series

Conference

UN SDGs

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