Hjörtur Johannsson

According to our database, Hjörtur Johannsson authored at least 20 papers between 2012 and 2023.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of four.

2023

Stochastic Quantum Power Flow for Risk Assessment in Power Systems.

Brynjar Sævarsson, Hjörtur Jóhannsson, Spyros Chatzivasileiadis

CoRR, 2023

Quantum Amplitude Estimation for Probabilistic Methods in Power Systems.

Emilie Jong, Brynjar Sævarsson, Hjörtur Jóhannsson, Spyros Chatzivasileiadis

CoRR, 2023

2022

Quantum Computing for Power Flow Algorithms: Testing on real Quantum Computers.

Brynjar Sævarsson, Spyros Chatzivasileiadis, Hjörtur Jóhannsson, Jacob Østergaard

CoRR, 2022

2021

Achieving increased Phasor POD performance by introducing a Control-Input Model.

Hallvar Haugdal, Kjetil Uhlen, Hjörtur Jóhannsson

CoRR, 2021

2020

Impact of Reduced Synchronous Machine Capacity on Damping and Phase of Inter-Area Oscillations.

Daniel Müller, Hjörtur Jóhannsson, Kjetil Uhlen

Proceedings of the IEEE PES Innovative Smart Grid Technologies Europe, 2020

Estimation of Oscillatory Mode Activity from PMU Measurements.

Hallvar Haugdal, Kjetil Uhlen, Daniel Müller, Hjörtur Jóhannsson

Proceedings of the IEEE PES Innovative Smart Grid Technologies Europe, 2020

2019

Binary Search and Fit Algorithm for Improved Voltage Stability Boundary Monitoring.

Christina Hildebrandt Lüthje Jørgensen, Bahtiyar Can Karatas, Hjörtur Jóhannsson, Stefan Sommer

Proceedings of the 2019 IEEE PES Innovative Smart Grid Technologies Europe, 2019

2018

Improved Voltage Stability Boundary Monitoring by Accounting for Variations in Thevenin Voltage Magnitude.

Bahtiyar Can Karatas, Hjörtur Johannsson, Arne Hejde Nielsen

Proceedings of the 2018 IEEE PES Innovative Smart Grid Technologies Conference Europe, 2018

2017

Super-Positioning of Voltage Sources for Fast Assessment of Wide-Area Thévenin Equivalents.

Jakob Glarbo Møller, Hjörtur Johannsson, Jacob Østergaard

IEEE Trans. Smart Grid, 2017

2015

Convex relaxation of power dispatch for voltage stability improvement.

Andreas S. Pedersen, Mogens Blanke, Hjörtur Johannsson

Proceedings of the 2015 IEEE Conference on Control Applications, 2015

2014

SOSPO-SP: Secure Operation of Sustainable Power Systems Simulation Platform for Real-Time System State Evaluation and Control.

Hugo Morais, Pieter Vancraeyveld, Allan Henning Birger Pedersen, Morten Lind, Hjörtur Johannsson, Jacob Østergaard

IEEE Trans. Ind. Informatics, 2014

Sensitivity based assessment of transient voltage sags caused by rotor swings.

Tilman Weckesser, Hjörtur Johannsson, Jacob Østergaard, Thierry Van Cutsem

Proceedings of the 2014 Power Systems Computation Conference, 2014

2013

Influence of current limitation on voltage stability with Voltage Sourced Converter HVDC.

Lorenzo Zeni, Hjörtur Johannsson, Anca Daniela Hansen, Poul Ejnar Sørensen, Bo Hesselbaek, Philip C. Kjaer

Proceedings of the 4th IEEE PES Innovative Smart Grid Technologies Europe, 2013

An implementation and test platform for wide area stability assessment methods.

Martin Lindholm Wittrock, Hjörtur Johannsson, Rodrigo Garcia-Valle

Proceedings of the 4th IEEE PES Innovative Smart Grid Technologies Europe, 2013

Suitability of voltage stability study methods for real-time assessment.

Angel Perez, Hjörtur Johannsson, Pieter Vancraeyveld, Jacob Østergaard

Proceedings of the 4th IEEE PES Innovative Smart Grid Technologies Europe, 2013

System security assessment in real-time using synchrophasor measurements.

Hjörtur Johannsson, Markus Wache

Proceedings of the 4th IEEE PES Innovative Smart Grid Technologies Europe, 2013

Fast assessment of the effect of preventive wide area emergency control.

Evgenia Dmitrova, Hjörtur Johannsson, Arne Hejde Nielsen

Proceedings of the 4th IEEE PES Innovative Smart Grid Technologies Europe, 2013

Real-time thevenin impedance computation.

Stefan Sommer, Hjörtur Johannsson

Proceedings of the IEEE PES Innovative Smart Grid Technologies Conference, 2013

2012

Investigation of the adaptability of transient stability assessment methods to real-time operation.

Tilman Weckesser, Hjörtur Johannsson, Stefan Sommer, Jacob Østergaard

Proceedings of the 3rd IEEE PES Innovative Smart Grid Technologies Europe, 2012

Assessment of the impact that individual voltage source has on a generator's stability.

Evgenia Dmitrova, Hjörtur Johannsson, Arne Hejde Nielsen

Proceedings of the IEEE Asian Solid State Circuits Conference, 2012