Power Systems ARTS

News & publications

Papers

Journal and conference papers on voltage stability by the people behind PS ARTS, from the early analysis of voltage collapse to the measurement-based indices running in control centres today.

Core papers

The papers behind the NLI and RLI

The method, its validation against a real incident, and its implementation at the Hellenic national control centre. The relay-based index is also protected by patent GR 1009503 B.

  1. Implementation of Real-Time, PMU-Based, Long-Term Voltage Stability Monitoring

    P. Mandoulidis, V. Nikolaidis, C. Vournas

    PAC World Conference, Athens, 2024

  2. PMU Applications for Voltage Stability Monitoring and Oscillation Analysis

    C. Vournas, P. Mandoulidis, O. Darmis, S. Chountasis, S. Tsakiris, G. Korres

    CIGRE Paris Session 2024, 2024

  3. Validation of Voltage Instability Detection and Control Using a Real Power System Incident

    C. Lambrou, P. Mandoulidis, C. Vournas

    Energies, vol. 14, no. 21, pp. 7165, 2021

  4. A PMU-based real-time estimation of voltage stability and margin

    P. Mandoulidis, C. Vournas

    Electric Power Systems Research, vol. 178, 106008, 2020

  5. Combining Transmission Line Protection with Voltage Stability Monitoring

    V. Nikolaidis, P. Mandoulidis, C. Vournas

    2018 Power Systems Computation Conference (PSCC), pp. 1-7, 2018

  6. On-Line Voltage Stability Monitoring

    C. Vournas, P. Mandoulidis

    2018 IEEE International Symposium on Circuits and Systems (ISCAS), pp. 1-5, 2018

  7. Voltage Stability Monitoring From a Transmission Bus PMU

    C. Vournas, C. Lambrou, P. Mandoulidis

    IEEE Transactions on Power Systems, vol. 32, no. 4, pp. 3266-3274, 2017

All papers

Voltage stability, year by year

71 papers, 1993–2026. Team members in bold. Each title opens the paper at its publisher.

2026

  1. A review of overvoltage instability mechanisms

    C. Vournas, T. Van Cutsem

    Sustainable Energy, Grids and Networks, vol. 47, 102475

  2. On overvoltage instability

    C. Vournas, T. Van Cutsem

    Electric Power Systems Research, in press

2025

  1. A Wide-Area System Protection Scheme to Avoid Undesired Zone-3 Distance Relay Trips causing Voltage Collapse

    V. Alexopoulou, V. Nikolaidis

    2025 60th International Universities Power Engineering Conference (UPEC), pp. 1-6

2024

  1. Emergency control measures against long term voltage instability

    V. Alexopoulou, V. Nikolaidis

    IET Conference Proceedings, vol. 2024, no. 1, pp. 51-55

  2. Implementation of Real-Time, PMU-Based, Long-Term Voltage Stability Monitoring

    P. Mandoulidis, V. Nikolaidis, C. Vournas

    PAC World Conference, Athens

  3. Methods to mitigate voltage-rise issues in transmission systems

    P. Mandoulidis, V. Lampropoulos, C. Vournas, M. Karystianos, G. Christoforidis, A. Neris, Y. Kabouris

    Electric Power Systems Research, vol. 236, 110888

  4. PMU Applications for Voltage Stability Monitoring and Oscillation Analysis

    C. Vournas, P. Mandoulidis, O. Darmis, S. Chountasis, S. Tsakiris, G. Korres

    CIGRE Paris Session 2024

2023

  1. Effect of RES current injection requirements on Voltage Stability Margin

    G. Prionistis, P. Mandoulidis, C. Vournas

    2023 IEEE PES Innovative Smart Grid Technologies Europe (ISGT EUROPE), pp. 1-5

2022

  1. An optimization framework for voltage stability support from active distribution networks

    G. Prionistis, C. Vournas

    Electric Power Systems Research, vol. 211, 108569

  2. Overview, comparison, and extension of emergency controls against voltage instability using Inverter-Based Generators

    P. Mandoulidis, G. Chaspierre, C. Vournas, T. Van Cutsem

    Sustainable Energy, Grids and Networks, vol. 31, 100710

2021

  1. Coordinated Countermeasures Against Overvoltage Instability in Autonomous Power Systems

    C. Vournas, V. Nikolaidis, G. I. Tsourakis

    IEEE Transactions on Power Delivery, vol. 36, no. 6, pp. 3329-3338

  2. Definition and Classification of Power System Stability – Revisited & Extended

    N. Hatziargyriou, J. Milanovic, C. Rahmann … C. Vournas et al.

    IEEE Transactions on Power Systems, vol. 36, no. 4, pp. 3271-3281

  3. Impact of converter interfaced generators on power system long-term voltage stability monitoring and control

    P. Mandoulidis, T. Souxes, C. Vournas

    Electric Power Systems Research, vol. 199, 107438

  4. Loss-of-Equilibrium Power System Instability Induced by Converter Operation

    T. Souxes, P. Mandoulidis, C. Vournas

    2021 IEEE Madrid PowerTech, pp. 1-6

  5. Power System Voltage Stability

    C. Vournas

    Encyclopedia of Systems and Control, pp. 1756-1761

  6. Validation of Voltage Instability Detection and Control Using a Real Power System Incident

    C. Lambrou, P. Mandoulidis, C. Vournas

    Energies, vol. 14, no. 21, pp. 7165

  7. Voltage stability support offered by active distribution networks

    G. Prionistis, T. Souxes, C. Vournas

    Electric Power Systems Research, vol. 190, 106728

2020

  1. A PMU-based real-time estimation of voltage stability and margin

    P. Mandoulidis, C. Vournas

    Electric Power Systems Research, vol. 178, 106008

  2. Enhanced Wind Power Plant Control Strategy During Stressed Voltage Conditions

    M. Sarkar, T. Souxes, A. D. Hansen, P. E. Sorensen, C. Vournas

    IEEE Access, vol. 8, pp. 120025-120035

  3. Test Systems for Voltage Stability Studies

    T. Van Cutsem, M. Glavic, W. Rosehart … C. Vournas et al.

    IEEE Transactions on Power Systems, vol. 35, no. 5, pp. 4078-4087

  4. Use of Synthetic Wind Power Time Series for Long-term Voltage Stability Analysis

    I. M. Granitsas, T. Souxes, C. Vournas, M. J. Koivisto, M. Sarkar, P. E. Sorensen

    2020 International Conference on Probabilistic Methods Applied to Power Systems (PMAPS), pp. 1-6

2019

  1. Detailed vs. Aggregate Wind Farm representation for Transmission System Voltage Stability Support

    T. Souxes, A. Parasidis, C. Vournas

    2019 IEEE Milan PowerTech, pp. 1-6

  2. Effect of stochasticity on voltage stability support provided by wind farms: Application to the Hellenic interconnected system

    T. Souxes, I. Granitsas, C. Vournas

    Electric Power Systems Research, vol. 170, pp. 48-56

2018

  1. Combining Transmission Line Protection with Voltage Stability Monitoring

    V. Nikolaidis, P. Mandoulidis, C. Vournas

    2018 Power Systems Computation Conference (PSCC), pp. 1-7

  2. On-Line Voltage Stability Monitoring

    C. Vournas, P. Mandoulidis

    2018 IEEE International Symposium on Circuits and Systems (ISCAS), pp. 1-5

2017

  1. Local identification of voltage instability from load tap changer response

    T. Weckesser, L. Papangelis, C. Vournas, T. Van Cutsem

    Sustainable Energy, Grids and Networks, vol. 9, pp. 95-103

  2. Transmission support using Wind Farm controls during voltage stability emergencies

    C. Vournas, I. Anagnostopoulos, T. Souxes

    Control Engineering Practice, vol. 59, pp. 100-110

  3. Voltage stability monitoring from a transmission bus PMU

    C. Vournas, C. Lambrou, P. Mandoulidis

    2017 IEEE Manchester PowerTech, pp. 1-1

  4. Voltage Stability Monitoring From a Transmission Bus PMU

    C. Vournas, C. Lambrou, P. Mandoulidis

    IEEE Transactions on Power Systems, vol. 32, no. 4, pp. 3266-3274

2016

  1. Application of local autonomous protection against voltage instability to IEEE test system

    C. Vournas, C. Lambrou, M. Kanatas

    2016 IEEE Power and Energy Society General Meeting (PESGM), pp. 1-1

  2. Application of Local Autonomous Protection Against Voltage Instability to IEEE Test System

    C. Vournas, C. Lambrou, M. Kanatas

    IEEE Transactions on Power Systems, vol. 31, no. 4, pp. 3300-3308

2015

  1. Distributed reactive support and voltage stability limits: The example of Peloponnese in the Hellenic Interconnected System

    C. Vournas, C. Lambrou, I. Anagnostopoulos, G. Christoforidis, J. Kabouris

    2015 IEEE Power & Energy Society General Meeting, pp. 1-5

  2. Use of Wind Farm Converter Controls for Transmission System Support under Voltage Stability Emergencies

    C. Vournas, I. Anagnostopoulos

    IFAC-PapersOnLine, vol. 48, no. 30, pp. 72-77

2014

  1. Adjusting third zone distance protection to avoid voltage collapse

    V. Nikolaidis, N. Savvopoulos, A. S. Safigianni, C. Vournas

    2014 Power Systems Computation Conference, pp. 1-7

  2. Emergency Monitoring and Corrective Control of Voltage Instability

    T. Van Cutsem, C. Vournas

    Real-Time Stability in Power Systems, 2nd ed., Springer, pp. 279-304

  3. Online Voltage Security Assessment

    C. Vournas, T. Van Cutsem

    Real-Time Stability in Power Systems, 2nd ed., Springer, pp. 305-333

2013

  1. Voltage stability monitoring and control studies in the Hellenic interconnected system

    C. Lambrou, C. Vournas, G. Christoforidis, J. Kambouris

    2013 IEEE Grenoble Conference, pp. 1-6

2012

  1. Investigation of alternative methods for distribution voltage control: Impact on maximum loadability

    C. Vournas, P. Christoforidis

    IFAC Proceedings Volumes, vol. 45, no. 21, pp. 7-13

2011

  1. Effect of Load Restoration on an Integrated Autonomous Protection System Against Voltage Instability

    P. Mandoulidis, C. Lambrou, C. Vournas

    2011 IEEE Trondheim PowerTech, pp. 1-8

  2. Local voltage instability monitoring and protection in the presence of self-restoring loads and two-level LTCs

    C. Lambrou, P. Mandoulidis, C. Vournas

    2011 IEEE Power and Energy Society General Meeting, pp. 1-9

2010

  1. An integrated autonomous protection system against voltage instability based on Load Tap Changers

    C. Vournas, C. Lambrou, M. Glavic, T. Van Cutsem

    2010 IREP Symposium Bulk Power System Dynamics and Control - VIII (IREP), pp. 1-14

  2. Overview of local identification of emergency and protection against voltage collapse

    C. Vournas, C. Lambrou

    7th Mediterranean Conference and Exhibition on Power Generation, Transmission, Distribution and Energy Conversion (MedPower 2010), pp. 250-250

2008

  1. Design Strategies for Load-Shedding Schemes Against Voltage Collapse in the Hellenic System

    V. Nikolaidis, C. Vournas

    IEEE Transactions on Power Systems, vol. 23, no. 2, pp. 582-591

  2. Local Identification of Voltage Emergency Situations

    C. Vournas, T. Van Cutsem

    IEEE Transactions on Power Systems, vol. 23, no. 3, pp. 1239-1248

  3. Online Voltage Security Assessment in the Hellenic Interconnected System

    C. Vournas, G. Christoforidis, T. Van Cutsem

    Real‐Time Stability Assessment in Modern Power System Control Centers, pp. 249-278

  4. Problems and solutions for local identification of voltage instability and emergency control

    C. Vournas, N. G. Sakellaridis

    2008 IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century, pp. 1-7

2007

  1. Automatic Load Shedding Schemes against Voltage Instability in the Hellenic System

    V. Nikolaidis, C. Vournas, G. A. Fotopoulos, G. P. Christoforidis, E. Kalfaoglou, A. Koronides

    2007 IEEE Power Engineering Society General Meeting, pp. 1-7

  2. Emergency Voltage Stability Controls: an Overview

    T. Van Cutsem, C. Vournas

    2007 IEEE Power Engineering Society General Meeting, pp. 1-10

2006

  1. Induction Machine Short-term Voltage Stability and Protection Measures

    C. Vournas, E. Potamianakis

    2006 IEEE PES Power Systems Conference and Exposition, pp. 993-998

  2. Investigating Power System Stability Limits

    C. Vournas, N. Sakellaridis, M. Karystianos, N. G. Maratos

    2006 IEEE International Symposium on Circuits and Systems, pp. 726-729

  3. Short-Term Voltage Instability: Effects on Synchronous and Induction Machines

    E. G. Potamianakis, C. Vournas

    IEEE Transactions on Power Systems, vol. 21, no. 2, pp. 791-798

2005

  1. Application of real-time voltage security assessment to the Hellenic interconnected system

    T. Van Cutsem, J. Kabouris, G. Christoforidis, C. Vournas

    IEE Proceedings - Generation, Transmission and Distribution, vol. 152, no. 1, pp. 123

2004

  1. Comparison and combination of emergency control methods for voltage stability

    C. Vournas, A. Metsiou, M. Kotlida, V. Nikolaidis, M. Karystianos

    IEEE Power Engineering Society General Meeting, 2004., pp. 1799-1804 Vol.2

  2. Investigation of short-term voltage stability problems and countermeasures

    C. Vournas, E. G. Potamianakis

    IEEE PES Power Systems Conference and Exposition, 2004., pp. 1067-1073

  3. Load Tap Changers in Emergency and Preventive Voltage Stability Control

    C. Vournas, M. Karystianos

    IEEE Transactions on Power Systems, vol. 19, no. 1, pp. 492-498

2003

  1. On-line voltage security assessment of the hellenic interconnected system

    C. Vournas, G. A. Manos, J. Kabouris, G. Christoforidis, G. Hasse, T. Van Cutsem

    2003 IEEE Bologna Power Tech Conference Proceedings,, vol. 3, pp. 372-379

  2. On-line VSA and emergency voltage controls for the hellenic interconnected system

    C. Vournas, M. Karystianos

    2003 IEEE Power Engineering Society General Meeting (IEEE Cat. No.03CH37491), pp. 2024-2029

2002

  1. On the role of LTCs in emergency and preventive voltage stability control

    C. Vournas

    2002 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.02CH37309), vol. 2, pp. 854-859

2001

  1. Emergency tap-blocking to prevent voltage collapse

    C. Vournas, G. A. Manos

    2001 IEEE Porto Power Tech Proceedings (Cat. No.01EX502), vol. vol.2, pp. 5

  2. Interruptible load as a competitor to local generation for preserving voltage security

    C. Vournas

    2001 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.01CH37194), vol. 1, pp. 236-240

2000

  1. Analysis of a voltage instability incident in the Greek power system

    C. Vournas, G. A. Manos, J. Kabouris, T. Van Cutsem

    2000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077), vol. 2, pp. 1483-1488

  2. Voltage security considerations in an open power market

    J. Kabouris, C. Vournas, S. Efstathiou, G. A. Manos, G. C. Contaxis

    DRPT2000. International Conference on Electric Utility Deregulation and Restructuring and Power Technologies. Proceedings (Cat. No.00EX382), pp. 278-283

1998

  1. Modelling of stalling motors during voltage stability studies

    C. Vournas, G. A. Manos

    IEEE Transactions on Power Systems, vol. 13, no. 3, pp. 775-781

  2. Voltage Stability of Electric Power Systems

    T. Van Cutsem, C. Vournas

    Book, Springer

1996

  1. Relationships between voltage and angle stability of power systems

    C. Vournas, P. W. Sauer, M. A. Pai

    International Journal of Electrical Power & Energy Systems, vol. 18, no. 8, pp. 493-500

  2. The effect of automatic voltage regulation on the bifurcation evolution in power systems

    C. Vournas, M. A. Pai, P. W. Sauer

    IEEE Transactions on Power Systems, vol. 11, no. 4, pp. 1683-1688

  3. Voltage stability analysis in transient and mid-term time scales

    T. Van Cutsem, C. Vournas

    IEEE Transactions on Power Systems, vol. 11, no. 1, pp. 146-154

1995

  1. Time-scale decomposition in voltage stability analysis of power systems

    C. Vournas, P. W. Sauer, M. A. Pai

    Proceedings of 1995 34th IEEE Conference on Decision and Control, vol. 4, pp. 3459-3464

  2. Voltage stability and controllability indices for multimachine power systems

    C. Vournas

    IEEE Transactions on Power Systems, vol. 10, no. 3, pp. 1183-1194

1993

  1. An Overview of Dynamic Phenomena Related to Voltage Collapse

    C. Vournas, G. Manos

    Proceedings. Joint International Power Conference Athens Power Tech,, vol. 1, pp. 471-476

  2. Voltage stability as affected by static load characteristics

    C. Vournas, N. D. Krassas

    IEE Proceedings C Generation, Transmission and Distribution, vol. 140, no. 3, pp. 221

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