On-line dynamic security assessment in power systems

The fraction of electricity generated from renewable energy technologies utilizing non-controllable and on forecast accuracy depending sources (e.g. wind and solar radiation) is increasing. This will make today’s tools for stability assessment, which depend on extensive off-line computations, insufficient. Phasor measurement units (PMUs) can provide synchronized wide-area measurements in real time, which forms a basis for development of new methods for online monitoring of the system conditions.

The PhD project is part of the SOSPO project and its objective is to develop a method, which utilizes those synchronized measurements to dynamically evaluate the stability of the power system in case of facing a severe perturbation, e.g. a loss of a generation unit. The method analyses the ability of the power system to survive the transient system response as well as its capability to reach a new stable steady-state operating point.

The project outcome will improve the system state awareness of the operator and may provide supporting information to identify efficient control actions to improve the stability condition.

Project co-funded by the Danish Council for Strategic Research  I  To be completed: 2014 

Publikationer rss feed

2025
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Energy Crisis in 2022: When consumers discovered their flexibility and the consequences for modeling consumption

Bak, Bjarke S. ; Eriksen, Michael L. ; Bindner, Henrik W. ; Weckesser, Tilman
part of: Proceedings of 2025 IEEE Kiel PowerTech, 2025
Presented at:
2025 IEEE PES Power Tech Conference

Type: Article in proceedings (Peer reviewed)

Status: Published     |    Year: 2025     |    DOI: https://doi.org/10.1109/PowerTech59965.2025.11180721

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Impact of Evolving EV Charging Profiles on Distribution Grid Reinforcement: A Case Study

Weckesser, Tilman ; Skalyga, Mikhail ; Bjerregaard, Casper
part of: Proceedings of 2024 IEEE PES Innovative Smart Grid Technologies Europe (ISGT EUROPE), 2025
Presented at:
IEEE PES Innovative Smart Grid Technologies Europe 2024

Type: Article in proceedings (Peer reviewed)

Status: Published     |    Year: 2025     |    DOI: https://doi.org/10.1109/ISGTEUROPE62998.2024.10863431

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Impact of limited information on estimating aggregated electric vehicle loading: A distribution system operator perspective

Cheilas, Damianos ; Bindner, Henrik W. ; Weckesser, Tilman
in: Sustainable Energy, Grids and Networks, vol: 44

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2025     |    DOI: https://doi.org/10.1016/j.segan.2025.102012

 

Investigating the benefit of flexibility services in distribution grids under uncertainty

Cheilas, Damianos ; Bindner, Henrik W. ; Weckesser, Tilman
in: Sustainable Energy, Grids and Networks, vol: 41

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2025     |    DOI: https://doi.org/10.1016/j.segan.2024.101582

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Navigating Grid Challenges: Voltage-Reactive Power Control in the Integration of Power-to-X Facilities

Riofrio, Jonathan ; You, Shi ; Weckesser, Tilman
part of: Proceedings of 2024 IEEE PES Innovative Smart Grid Technologies Europe (ISGT EUROPE), 2025
Presented at:
IEEE PES Innovative Smart Grid Technologies Europe 2024

Type: Article in proceedings (Peer reviewed)

Status: Published     |    Year: 2025     |    DOI: https://doi.org/10.1109/ISGTEUROPE62998.2024.10863080

 

Scaling Digital Real-Time Models of Alkaline Electrolyzers for Power Grid Integration

Trujillo, Jonathan Riofrio ; Prabakar, Kumaraguru ; Jain, Rishabh ; You, Shi ; Weckesser, Tilman ; Hammond, Steve
part of: Proceedings of IEEE PES ISGT Europe 2025, 2025
Presented at:
IEEE PES ISGT Europe 2025

Type: Article in proceedings (Peer reviewed)

Status: Accepted/In press     |    Year: 2025

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Which electric vehicle users are flexible and price responsive? Uncovering user types in Denmark

Chatzouli, Margarita ; Weckesser, Tilman ; Yousefi, Ghaffar ; Thingvad, Malthe ; Calearo, Lisa ; Marinelli, Mattia ; Ziras, Charalampos
in: Energy Research and Social Science, vol: 127

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2025     |    DOI: https://doi.org/10.1016/j.erss.2025.104240

2024
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A Framework for Assessing the Participation of Aggregated Flexible Loads in Power Markets

Tajalli, Seyede Zahra ; Weckesser, Tilman ; Bindner, Henrik W.
part of: Proceedings of 2024 IEEE Power & Energy Society Innovative Smart Grid Technologies Conference (ISGT), 2024
Presented at:
2024 Conference on Innovative Smart Grid Technologies, North America

Type: Article in proceedings (Peer reviewed)

Status: Published     |    Year: 2024     |    DOI: https://doi.org/10.1109/ISGT59692.2024.10454245

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An empirical analysis of electric vehicle charging behavior based on real Danish residential charging data

Ziras, Charalampos ; Thingvad, Malthe ; Fog, Torben ; Yousefi, Ghaffar ; Weckesser, Tilman
in: Electric Power Systems Research, vol: 234

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2024     |    DOI: https://doi.org/10.1016/j.epsr.2024.110556

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Cost minimization of a hybrid PV-to-methanol plant through participation in reserve markets: A Danish case study

Andreae, Elisabeth ; Johnsen, Andrea Gloppen ; Reinert, Rolvur ; Mortensen, Mathias Holbæk ; Weckesser, Tilman
in: International Journal of Hydrogen Energy, vol: 68, pages: 190-201

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2024     |    DOI: https://doi.org/10.1016/j.ijhydene.2024.04.158


https://www.cee.elektro.dtu.dk/research/phd-projects/completed-phd-projects/11-15/2014-on-line-dynamic-security-assessment-in-power-systems
15 DECEMBER 2025