Lessons learned from grid restoration and islanded operation tests with hydropower plants

Darko Brankovic; Dominik Manuel Grall; Herwig Renner; Robert Schuerhuber; Andreas Abart; Jürgen Pasker

Lessons learned from grid restoration and islanded operation tests with hydropower plants

Darko Brankovic^*
, Dominik Manuel Grall^*
, Herwig Renner
, Robert Schuerhuber
, Andreas Abart
, Jürgen Pasker

^*Corresponding author for this work

Institute of Electrical Power Systems (4320)

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

Abstract

Sufficient preparation for a possible blackout scenario is fundamental for a secure power supply. Therefore real tests are essential in addition to calculation-based preparatory measures for grid restoration. This paper summarizes the effects and outcomes of two field test scenarios of grid restoration using hydropower plants. Further, the calculation results and the most important findings with a focus on load-frequency response are discussed. The two tests involve a grid restoration of a 110 kV grid with transmission lines of a total length in the range of 100 km ... 200 km. The tests took place in different locations in Austria and different load types were involved, such as large induction motors, synchronous motors, and converter loads. At the end of the analyses, an index is defined for different turbine types, describing the relationship between the rotational energy and the maximum frequency deviation for instantaneous load steps. The Turbine Type Performance Index (TTPI) enables the estimation of maximum frequency deviation in an island grid.

Original language	English
Title of host publication	Transformation der Stromversorgung – Netzregelung und Systemführung; 15. ETG/GMA-Fachtagung, Netzregelung und Systemführung“
Publisher	VDE
Pages	126 - 132
ISBN (Electronic)	978-3-8007-6292-7
Publication status	Published - 17 Mar 2025
Event	ETG/GMA Netzregelung und Systemführung 2024 - Hanns-Seidel-Stiftung Konferenzzentrum München, München, Germany Duration: 17 Sept 2024 → 18 Sept 2024 https://www.vde.com/de/veranstaltungen/info?id=22261&type=vde%7Cvdb

Conference

Conference	ETG/GMA Netzregelung und Systemführung 2024
Country/Territory	Germany
City	München
Period	17/09/24 → 18/09/24
Internet address	https://www.vde.com/de/veranstaltungen/info?id=22261&type=vde%7Cvdb

Keywords

Island operation
grid restoration
hydropower plants
blackout
stability
frequency load response
TTPI

Fields of Expertise

Sustainable Systems

Access to Document

https://ieeexplore.ieee.org/abstract/document/10926725/metrics#metrics

Cite this

Brankovic, D., Grall, D. M., Renner, H., Schuerhuber, R., Abart, A., & Pasker, J. (2025). Lessons learned from grid restoration and islanded operation tests with hydropower plants. In Transformation der Stromversorgung – Netzregelung und Systemführung; 15. ETG/GMA-Fachtagung, Netzregelung und Systemführung“ (pp. 126 - 132). VDE. https://ieeexplore.ieee.org/abstract/document/10926725/metrics#metrics

Lessons learned from grid restoration and islanded operation tests with hydropower plants. / Brankovic, Darko ; Grall, Dominik Manuel ; Renner, Herwig et al.
Transformation der Stromversorgung – Netzregelung und Systemführung; 15. ETG/GMA-Fachtagung, Netzregelung und Systemführung“. VDE, 2025. p. 126 - 132.

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

Brankovic, D , Grall, DM , Renner, H , Schuerhuber, R, Abart, A & Pasker, J 2025, Lessons learned from grid restoration and islanded operation tests with hydropower plants. in Transformation der Stromversorgung – Netzregelung und Systemführung; 15. ETG/GMA-Fachtagung, Netzregelung und Systemführung“. VDE, pp. 126 - 132, ETG/GMA Netzregelung und Systemführung 2024, München, Germany, 17/09/24. <https://ieeexplore.ieee.org/abstract/document/10926725/metrics#metrics>

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title = "Lessons learned from grid restoration and islanded operation tests with hydropower plants",

abstract = "Sufficient preparation for a possible blackout scenario is fundamental for a secure power supply. Therefore real tests are essential in addition to calculation-based preparatory measures for grid restoration. This paper summarizes the effects and outcomes of two field test scenarios of grid restoration using hydropower plants. Further, the calculation results and the most important findings with a focus on load-frequency response are discussed. The two tests involve a grid restoration of a 110 kV grid with transmission lines of a total length in the range of 100 km ... 200 km. The tests took place in different locations in Austria and different load types were involved, such as large induction motors, synchronous motors, and converter loads. At the end of the analyses, an index is defined for different turbine types, describing the relationship between the rotational energy and the maximum frequency deviation for instantaneous load steps. The Turbine Type Performance Index (TTPI) enables the estimation of maximum frequency deviation in an island grid.",

keywords = "Island operation, grid restoration, hydropower plants, blackout, stability, frequency load response, TTPI",

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T1 - Lessons learned from grid restoration and islanded operation tests with hydropower plants

AU - Brankovic, Darko

AU - Grall, Dominik Manuel

AU - Renner, Herwig

AU - Schuerhuber, Robert

AU - Abart, Andreas

AU - Pasker, Jürgen

PY - 2025/3/17

Y1 - 2025/3/17

N2 - Sufficient preparation for a possible blackout scenario is fundamental for a secure power supply. Therefore real tests are essential in addition to calculation-based preparatory measures for grid restoration. This paper summarizes the effects and outcomes of two field test scenarios of grid restoration using hydropower plants. Further, the calculation results and the most important findings with a focus on load-frequency response are discussed. The two tests involve a grid restoration of a 110 kV grid with transmission lines of a total length in the range of 100 km ... 200 km. The tests took place in different locations in Austria and different load types were involved, such as large induction motors, synchronous motors, and converter loads. At the end of the analyses, an index is defined for different turbine types, describing the relationship between the rotational energy and the maximum frequency deviation for instantaneous load steps. The Turbine Type Performance Index (TTPI) enables the estimation of maximum frequency deviation in an island grid.

AB - Sufficient preparation for a possible blackout scenario is fundamental for a secure power supply. Therefore real tests are essential in addition to calculation-based preparatory measures for grid restoration. This paper summarizes the effects and outcomes of two field test scenarios of grid restoration using hydropower plants. Further, the calculation results and the most important findings with a focus on load-frequency response are discussed. The two tests involve a grid restoration of a 110 kV grid with transmission lines of a total length in the range of 100 km ... 200 km. The tests took place in different locations in Austria and different load types were involved, such as large induction motors, synchronous motors, and converter loads. At the end of the analyses, an index is defined for different turbine types, describing the relationship between the rotational energy and the maximum frequency deviation for instantaneous load steps. The Turbine Type Performance Index (TTPI) enables the estimation of maximum frequency deviation in an island grid.

KW - Island operation

KW - grid restoration

KW - hydropower plants

KW - blackout

KW - stability

KW - frequency load response

KW - TTPI

M3 - Conference paper

SP - 126

EP - 132

BT - Transformation der Stromversorgung – Netzregelung und Systemführung; 15. ETG/GMA-Fachtagung, Netzregelung und Systemführung“

PB - VDE

T2 - ETG/GMA Netzregelung und Systemführung 2024

Y2 - 17 September 2024 through 18 September 2024

ER -

Lessons learned from grid restoration and islanded operation tests with hydropower plants

Abstract

Conference

Keywords

Fields of Expertise

Access to Document

Fingerprint

Cite this