Publications

  • • Fatih Ozveren, Omer Usta, "A power based integrated protection scheme for active distribution networks against asymmetrical faults", Electric Power Systems Research, Volume 218, May 2023.

    • O. Usta, F. Ozveren, M. Uzun and C. Gocer, "IEC61850 Based Integrated Directional Power Relaying for the Protection of Microgrids against Unbalanced Fault Conditions", 2021 13th International Conference on Electrical and Electronics Engineering (ELECO), Bursa, Turkey, Nov. 2021.

    • Behnam Feizifar, Zdenek Muller, Omer Usta, "A New Algorithm for Detecting Failure to Clear Mode of Circuit Breakers Using Fundamental Frequency Component of Voltage Signals", IEEE Transactions on Power Delivery, Vol. 35, No. 2, pp. 794-801, April 2020.

    • Behnam Feizifar, Zdenek Muller, Gaeth Fandi, Omer Usta, "A Collective Condition Monitoring Algorithm for On-Load Tap-Changers", 2019 IEEE International Conference on Environment and Electrical Engineering, pp. 1-6, Jun. 2019.

    • Behnam Feizifar, Omer Usta, "Failure Detection of On-Load Tap-Changers Using a New Power-Based Algorithm", Arabian Journal for Science and Engineering, Vol. 44, No. 8, pp. 6967-6976, Aug. 2019.

    • Behnam Feizifar, Omer Usta, "A New Arc-Based Model and Condition Monitoring Algorithm for On-Load Tap-Changers", Electric Power Systems Research, Vol. 167, pp. 58-70, Feb. 2019.

    • Behnam Feizifar, Omer Usta, "A Novel Arcing Power-Based Algorithm for Condition Monitoring of Electrical Wear of Circuit Breaker Contacts", IEEE Transactions on Power Delivery, Vol. 34, No. 3, pp. 1060-1068, Jun. 2019.

    • Behnam Feizifar, Omer Usta, "Condition Monitoring of Circuit Breakers: Current Status and Future Trends", IEEE Int. Conf. on Environment and Electrical Eng., Milan, Italy, Jun. 6-9, EEEIC 2017.

    • Behnam Feizifar, Omer Usta, "Condition Monitoring of Circuit Breakers Using Arc Models and Failure Detection Algorithm", IEEE Int. Conf. on Smart Grid and Cities, Istanbul, Turkey, Apr. 19-21, ICSG 2017.

    • Berkin Kara, Fatih Ozveren, Omer Usta, "Protection of active distribution systems using differential relay", 2016 National Conference on Electrical, Electronics and Biomedical Engineering (ELECO), Bursa, Turkey, Dec. 1, 2016.

    • Behnam Feizifar, Omer Usta, Mahmoud Reza Haghifam, "Impact of Distributed Generation on Transient-Based Fault Location Techniques in Distribution Networks", IEEJ Transaction on Electrical and Electronic Eng., The Institute of Electrical Engineers of Japan, Vol. 10, No. 3, May 2015.

    • Maleki, H.; Khederzadeh, M.; Asgharian, V.; Usta, O., "Managing Microgrid Power Generation By Using Back To Back Voltage Source Convertor". IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT-Europe), 2014.

    • O Dag, C Ucak, O Usta, " Harmonic Source Location And Meter Placement Optimization By Impedance Network Approach", Journal of Electrical Engineering March, Volume 94, Issue 1, pp 1-10, 2012.

    • O Ozgonenel, Irfan Guney, O Usta, H Dirik, "A Novel Three-Phase Transformer Hysteresis Model In MATLABTM Simulink", Turk. J. Elec. Eng. & Comp. Sci., 20, pp. 479-492, 2012.

    • Yumak, K.; Usta, O. "A Controversial Issue: Power Components in Non-sinusoidal Single-Phase Systems". 7th International Conference on Electrical and Electronics Engineering (ELECO), 2011.

    • E Kilic, O Ozgonenel, O Usta, "PCA Based Protection Algorithm for Transformer Internal Faults", Turkish Journal of Electrical Engineering and Computer Sciences, Vol. 17, No. 2, pp.125-142, 2009.

    • Ozgonenel, O.; Dirik, H.; Guney, I.; Usta, O., "A new transformer hysteresis model in MATLABT Simulink".PowerTech, 2009 IEEE Bucharest, 2009.

    • O. Usta, M. H. Musa, M. Bayrak, M.A. Redfern, M.A. Redfern, "A New Relaying Algorithm to Detect Loss of Excitation of Synchronous", Turkish Journal of Electrical Engineering and Computer Sciences, Vol. 15, No. 3, pp. 339-349, 2007.

    • I Genc, and O Usta, "'Impact of Distributed Generators on the Oscillatory Stability of Interconnected Power Systems'', Turkish Journal of Electrical Engineering and Computer Sciences, Volume.17, Issue.2, pp.125-142, 2, Vol. 13, No. 1, pp. 149-160, 2005.

    • O. Usta, M Bayrak, MA Redfern, "A New Digital Relay for Generator Protection against Asymmetrical Faults", IEEE Transaction on Power Delivery, Vol. 17, No. 1, pp. 54-59, 2002.

    • Redfern, M.A.; Rusek, B.; Usta, O. "A Novel Numeric Relay Algorithm For Extracting Negative Phase Sequence Quantities From Three-Phase Measurements". IEEE Power Engineering Society Summer Meeting, 2002.

    • Usta, O.; Bayrak, M.; Ozdemir, M., "A New Digital Relay To Provide Protection Against Unbalanced Fault Conditions". Seventh International Conference on (IEE) Developments in Power System Protection, 2001.

    • Usta, O.; Bayrak, M.; Redfern, M. A., "A New Digital Relay for Generator Protection against Asymmetrical Faults" IEEE PES Power Engineering Review, IEEE Journals & Magazines, Vol. 21, Issue. 11, 2001.

    • O Usta, M Bayrak, "A New Power Based Digital Algorithm for Generator Protection", IEEE Power Engineering Review (Power Delivery), Vol. 20, No. 2, s. 49-52, Feb. 2000.

    • Usta, O.; Bayrak, M.; Redfern, M.A.; Musa, M.H, "Microprocessor-based out-of-phase reclosing protection for nonutility generation units". International Conference on Electric Power Engineering, PowerTech Budapest 99, 1999.

    • Usta, O.; Redfern, M.A.; Bayrak, M., "Data Communications For Power System Relaying". 9th Mediterranean Electrotechnical Conference, MELECON 98, 1998.

    • Redfern, M.A.; Barrett, J.I.; Usta, O., "A New Loss Of Grid Protection Based On Power Measurements". Sixth International Conference on Developments in Power System Protection, 1997.

    • Usta O., Kaypmaz A., Gul O., "Application of Diakoptics to Power System Analysis", Bulletin of the Technical University of Istanbul, Vol.49, No.3-4, pp. 389-401, 1996.

    • Usta, O.; Redfern, M.A.; Tarkan, N.; Erdogan, Z., "Analysis of out of phase reclosing required for the protection of dispersed storage and generation units". 8th Mediterranean Electrotechnical Conference. MELECON '96, 1996.

    • MA Redfern, J Barrett, O Usta, "A New Microprocessor Based Islanding Protection Algorithm for Dispersed Storage and Generation Units", IEEE Transaction on Power Delivery., Vol. 10, No. 3, pp. 1249-1254, 1995.

    • Usta, O.; Redfern, M.A.; Barrett, J.I., "Protection of dispersed storage and generation units against islanding". 7th Mediterranean Electrotechnical Conference Proceedings, 1994.

    • Kaypmaz, A.; Tokad, Y.; Usta, O. " Diakoptics-a parallel processing approach for the analysis of large-scale power systems". 7th Mediterranean Electrotechnical Conference Proceedings, 1994.

    • M A Redfern, O Usta, G Fielding, E P Walker, "A Power Based Algorithm to Provide Loss of Grid Protection for Embedded Generation", IEE (IET) Proceedings on Generation, Transmission and Distribution, Vol. 141, No. 6, pp. 640-646, Dec. 1994.

    • MA Redfern, O Usta, G Fielding, " Protection Against Loss of Utility Grid Supply for a Dispersed Storage and Generation Unit", IEEE Trans. on Power Delivery ,Vol. 8, No. 3, pp. 948-954, Jul. 1993.

    • Redfern, M.A.; Barrett, J.I.; Usta, O.; Yip, T., "A new microprocessor based loss of grid protection for embedded generation". 2nd International Conference on Advances in Power System Control, Operation and Management, APSCOM-93. 1993.

    • Redfern, M.A.; Usta, O.; Barrett, J.I.; Fielding, G., "A new digital relay for loss of grid to protect embedded generation". The Fifth International conference on Developments in Power System Protection, 1993.

    • Redfern, M.A.; Usta, O.; Barrett, J.I., "Loss of grid protection for an embedded generator".IEE Colloquium on Effective Response of a Public Electricity Network to Independent Generators, 1993.