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Items where Author is "Karaagac, Ulas"

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Number of items: 67.

B

Belqorchi, A., Karaagac, U., Mahseredjian, J., & Kamwa, I. (2019). Standstill Frequency Response Test and Validation of a Large Hydrogenerator. IEEE Transactions on Power Systems, 34(3), 2261-2269. External link

C

Chang, Y., Mahseredjian, J., Kocar, I., & Karaagac, U. (2022, June). Analytical characterization of DFIG response to asymmetrical voltage dips for efficient design [Paper]. 22nd Power Systems Computation Conference (PSCC 2022), Porto, Portugal (7 pages). Published in Electric Power Systems Research, 211. External link

Chang, Y., Zhao, M., Kocar, I., & Karaagac, U. (2022, September). Transient Analysis and Control Solutions for DFIG-based Wind Turbine Generators to Improve FRT Performance under Asymmetrical Faults [Paper]. 9th International Conference on Power Electronics Systems and Applications (PESA 2022), Hong Kong, Hong Kong (6 pages). External link

Chang, Y., Kocar, I., Hu, J., Karaagac, U., Chan, K. W., & Mahseredjian, J. (2021). Coordinated Control of DFIG Converters to Comply with Reactive Current Requirements in Emerging Grid Codes. Journal of Modern Power Systems and Clean Energy, 12 pages. External link

Cai, L., Yin, H., Lan, Y., Lan, T., Wu, X., Karaagac, U., Mahseredjian, J., Eckel, H.-G., & Weber, H. (2020, July). Analysis of impact of harmonic disturbances on the mechanical system of wind turbine [Paper]. 21st IFAC World Congress 2020, Berlin, Germany. Published in IFAC-PapersOnLine, 53(2). External link

Cetindag, B., Kocar, I., Gueye, A., & Karaagac, U. (2017). Modeling of Step Voltage Regulators in Multiphase Load Flow Solution of Distribution Systems Using Newton's Method and Augmented Nodal Analysis. Electric Power Components and Systems, 45(15), 1667-1677. External link

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Farantatos, E., Karaagac, U., Saad, H., & Mahseredjian, J. (2013, August). Short-circuit current contribution of converter interfaced wind turbines and the impact on system protection [Paper]. IREP Symposium on Bulk Power System Dynamics and Control (IREP 2013), Rethymno, Greece. External link

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Ghafouri, M., Karaagac, U., Mahseredjian, J., Kocar, I., & Lei, M. (2023). Design of a robust and practicable SSI damping controller using H∞ technique for series compensated DFIG-based wind farms. Energy Reports, 9, 647-655. External link

Ghafouri, M., Karaagac, U., Kocar, I., Xu, Z., & Farantatos, E. (2021). Analysis and mitigation of the communication delay impacts on wind farm central SSI damping controller. IEEE Access, 9, 105641-105650. Available

Ghafouri, M., Karaagac, U., Karimi, H., & Mahseredjian, J. (2019). Robust subsynchronous interaction damping controller for DFIG-based wind farms. Journal of Modern Power Systems and Clean Energy, 7(6), 1663-1674. Available

Ghafouri, M., Karaagac, U., Mahseredjian, J., & Karimi, H. (2019). SSCI damping controller design for series compensated DFIG based wind parks considering implementation challenges. IEEE Transactions on Power Systems, 34(4), 2644-2653. External link

Ghafouri, M., Karaagac, U., Karimi, H., Jensen, S., Mahseredjian, J., & Faried, S. O. (2017). An LQR Controller for Damping of Subsynchronous Interaction in DFIG-Based Wind Farms. IEEE Transactions on Power Systems, 32(6), 4934-4942. External link

Gras, H., Mahseredjian, J., Rutovic, E., Karaagac, U., Haddadi, A., Saad, O., Kocar, I., & El-Akoum, A. (2017, June). A new hierarchical approach for modeling protection systems in EMT-type software [Paper]. International Conference on Power Systems Transients (IPST 2017), Seoul, Republic of Korea (6 pages). External link

Ghafouri, M., Karaagac, U., Karimi, H., & Mahseredjian, J. (2016, July). Sub synchronous resonance dapming in DFIG-based wind farms using optimal control [Paper]. IEEE Power and Energy Society General Meeting (PESGM 2016), Boston, MA (5 pages). External link

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Hassani, R., Mahseredjian, J., Tshibungu, T., & Karaagac, U. (2022, June). Evaluation of time-domain and phasor-domain methods for power system transients [Paper]. 22nd Power Systems Computation Conference (PSCC 2022), Porto, Portugal (8 pages). Published in Electric Power Systems Research, 212. External link

Haddadi, A., Farantatos, E., Kocar, I., & Karaagac, U. (2021). Impact of Inverter Based Resources on System Protection. Energies, 14(4), 1050 (21 pages). External link

Haddadi, A., Zhao, M., Kocar, I., Karaagac, U., Chan, K. W., & Farantatos, E. (2021). Impact of Inverter-Based Resources on Negative Sequence Quantities-Based Protection Elements. IEEE Transactions on Power Delivery, 36(1), 289-298. External link

Haddadi, A., Kocar, I., Mahseredjian, J., Karaagac, U., & Farantatos, E. (2020, June). Negative sequence quantities-based protection under inverter-based resources – Challenges and impact of the German grid code [Paper]. 21st Power Systems Computation Conference (PSCC 2020) (6 pages). Published in Electric Power Systems Research, 188. External link

Haddadi, A., Kocar, I., Mahseredjian, J., Karaagac, U., & Farantatos, E. (2020, August). Performance of phase comparison line protection under inverter-based resources and impact of the german grid code [Paper]. 2020 IEEE Power and Energy Society General Meeting (PESGM 2020), Montréal, Qc, Canada (5 pages). External link

Haddadi, A., Kocar, I., Kauffmann, T., Karaagac, U., Farantatos, E., & Mahseredjian, J. (2019). Field validation of generic wind park models using fault records. Journal of Modern Power Systems and Clean Energy, 7(4), 826-836. Available

Haddadi, A., Kocar, I., Karaagac, U., Gras, H., & Farantatos, E. (2019). Impact of Wind Generation on Power Swing Protection. IEEE Transactions on Power Delivery, 34(3), 1118-1128. External link

Haddadi, A., Cai, M., Karaagac, U., & Mahseredjian, J. (2019, June). Power system test cases for EMT-type simulation studies [Paper]. International Conference on Power Systems Transients (IPST 2019), Perpignan, France (6 pages). External link

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Jacobs, K., Seyedi, Y., Meng, L., Karaagac, U., & Mahseredjian, J. (2023). A comparative study on frequency scanning techniques for stability assessment in power systems incorporating wind parks. Electric Power Systems Research, 220, 8 pages. External link

Javid, Z., Karaagac, U., & Kocar, I. (2022). Improved Laplacian Matrix based power flow solver for DC distribution networks. Energy Reports, 8(S8), 528-537. External link

Javid, Z., Karaagac, U., Kocar, I., & Chan, K. W. (2021). Laplacian matrix-based power flow formulation for LVDC grids with radial and meshed configurations. Energies, 14(7), 21 pages. Available

K

Karaagac, U., Kocar, I., Mahseredjian, J., Cai, L., & Javid, Z. (2021, June). STATCOM integration into a DFIG-based wind park for reactive power compensation and its impact on wind park high voltage ride-through capability [Paper]. International Conference on Power Systems Transients (IPST 2021), Belo Horizonte, Brazil (8 pages). Published in Electric Power Systems Research, 199. External link

Karaagac, U., Mahseredjian, J., Gagnon, R., Gras, H., Saad, H., Cai, L., Kocar, I., Haddadi, A., Farantatos, E., Bu, S., Chan, K., & Wang, L. (2020, August). A Generic EMT-Type Model for Wind Parks with Permanent Magnet Synchronous Generator Full Size Converter Wind Turbines [Paper]. IEEE Power & Energy Society General Meeting (PESGM 2020), Montréal, Québec (1 page). External link

Karaagac, U., Mahseredjian, J., Gagnon, R., Gras, H., Saad, H., Cai, L., Kocar, I., Haddadi, A., Farantatos, E., Bu, S., Chan, K. W., & Wang, L. (2019). A generic EMT-type model for wind parks with permanent magnet synchronous generator full size converter wind turbines. IEEE Power and Energy Technology Systems Journal, 6(3), 131-141. External link

Kauffmann, T., Karaagac, U., Kocar, I., Jensen, S., Farantatos, E., Haddadi, A., & Mahseredjian, J. (2019). Short-Circuit Model for Type-IV Wind Turbine Generators with Decoupled Sequence Control. IEEE Transactions on Power Delivery, 34(5), 1998-2007. External link

Kocar, I., Karaagac, U., Mahseredjian, J., & Cetindag, B. (2018). Multiphase load-flow solution and initialization of induction machines. IEEE Transactions on Power Systems, 33(2), 1650-1658. External link

Kocar, I., Karaagac, U., Mahseredjian, J., & Cetindag, B. B. (2018, August). Multiphase Load-flow Solution and Initialization of Induction Machines [Abstract]. IEEE Power & Energy Society General Meeting (PESGM 2018), Portland, OR, USA (1 page). External link

Karaagac, U., Mahseredjian, J., Jensen, S., Gagnon, R., Fecteau, M., & Kocar, I. (2018). Safe operation of DFIG based wind parks in series compensated systems. IEEE Transactions on Power Delivery, 33(2), 709-718. External link

Karaagac, U., Mahseredjian, J., Jensen, S., Gagnon, R., Fecteau, M., & Kocar, I. (2018, August). Safe operation of DFIG based wind parks in series compensated systems [Paper]. IEEE Power & Energy Society General Meeting (PESGM 2018), Portland, Oregon, USA. External link

Kauffmann, T., Karaagac, U., Kocar, I., Jensen, S., Mahseredjian, J., & Farantatos, E. (2017). An Accurate Type III Wind Turbine Generator Short Circuit Model for Protection Applications. IEEE Transactions on Power Delivery, 32(6), 2370-2379. External link

Kauffmann, T., Karaagac, U., Kocar, I., Jensen, S., Mahseredjian, J., & Farantatos, E. (2017, July). An accurate type III wind turbine generator short circuit model for protection applications [Abstract]. IEEE Power & Energy Society General Meeting (PESGM 2017), Chicago, Illinois, USA (1 page). External link

Karaagac, U., Mahseredjian, J., Cai, L., & Saad, H. (2017, July). Offshore wind farm modeling accuracy and efficiency in MMC-based multi-terminal HVDC connection [Abstract]. IEEE Power & Energy Society General Meeting (PESGM 2017), Chicago, Illinois, USA (1 page). External link

Karaagac, U., Mahseredjian, J., Cai, L., & Saad, H. (2016). Offshore Wind Farm Modeling Accuracy and Efficiency in MMC-Based Multi-Terminal HVDC Connection. IEEE Transactions on Power Delivery, 32(2), 617-627. External link

Karaagac, U., Mahseredjian, J., Kocar, I., Soykan, G., & Saad, O. (2016). Partial refactorization based machine modeling techniques for electromagnetic transients. IEEE Transactions on Power Delivery, 31(5), 2370-2378. External link

Kauffmann, T., Karaagac, U., Kocar, I., Gras, H., Mahseredjian, J., Cetindag, B., & Farantatos, E. (2015, July). Phasor domain modeling of Type III wind turbine generator for protection studies [Paper]. IEEE Power and Energy Society General Meeting (PESGM 2015), Denver, CO, United states (5 pages). External link

Karaagac, U., Kauffmann, T., Kocar, I., Gras, H., Mahseredjian, J., Cetindag, B., & Farantatos, E. (2015, July). Phasor domain modeling of type-IV wind turbine generator for protection studies [Paper]. IEEE Power and Energy Society General Meeting (PESGM 2015), Denver, CO, United states (5 pages). External link

Karaagac, U., Faried, S. O., Mahseredjian, J., & Edris, A.-A. (2014). Coordinated control of wind energy conversion systems for mitigating subsynchronous interaction in DFIG-based wind farms. IEEE Transactions on Smart Grid, 5(5), 2440-2449. External link

Kocar, I., Mahseredjian, J., Karaagac, U., Soykan, G., & Saad, O. (2014). Multiphase load-flow solution for large-scale distribution systems using MANA. IEEE Transactions on Power Delivery, 29(2), 908-915. External link

Karaagac, U., Mahseredjian, J., Saad, H., Jensen, S., & Cai, L. (2013, July). Examination of Fault-Ride-Through methods for off-shore wind farms with VSC-based multi-therminal HVDC [Paper]. International Conference on Power Systems Transients (IPST 2013), Vancouver, BC, Canada (6 pages). External link

Karaagac, U., Gras, H., Mahseredjian, J., El-Akoum, A., & Legrand, X. (2013, July). Synchronous machine exciter circuit model in a simultaneous field winding interface [Paper]. IEEE Power and Energy Society General Meeting (PESGM 2013), Vancouver, BC, Canada (5 pages). External link

Karaagac, U. (2011). Synchronous Machine Modeling Precision and Efficiency in Electromagnetic Transients [Ph.D. thesis, École Polytechnique de Montréal]. Available

Karaagac, U., Mahseredjian, J., & Saad, O. (2011). An efficient synchronous machine model for electromagnetic transients. IEEE Transactions on Power Delivery, 26(4), 2456-2465. External link

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Meng, L., Karaagac, U., Ghafouri, M., Stepanov, A. B., Mahseredjian, J., Chan, K., & Kocar, I. (2023). A New Control Interaction Phenomenon in Large-Scale Type-4 Wind Park. IEEE Access, 11, 11 pages. Available

Meng, L., Karaagac, U., & Jacobs, K. (2023). A new sequence domain EMT-level multi-input multi-output frequency scanning method for inverter based resources. Electric Power Systems Research, 220, 7 pages. External link

Meng, L., Karaagac, U., Ghafouri, M., Stepanov, A., & Mahseredjian, J. (2023). A new stationary frame multi-input multi-output EMT-level frequency scanning method for inverter based resources. Energy Reports, 9, 748-756. External link

Ming, C., Mahseredjian, J., Karaagac, U., El-Akoum, A., & Xiaopeng, F. (2019). Functional mock-up interface based parallel multistep approach with signal correction for electromagnetic transients simulations. IEEE Transactions on Power Systems, 34(3), 2482-2484. External link

Mahseredjian, J., Karaagac, U., Dennetière, S., & Saad, H. (2015). Simulation of electromagnetic transients with EMTP-RV. In Numerical Analysis of Power System Transients and Dynamics (103-34). External link

Mahseredjian, J., Kocar, I., & Karaagac, U. (2014). Solution Techniques for Electromagnetic Transients in Power Systems. In Transient Analysis of Power Systems: Solution Techniques, Tools and Applications (9-38). External link

Mahseredjian, J., Dufour, C., Karaagac, U., & Bélanger, J. (2011, June). Simulation of power system transients using state-space grouping through nodal analysis [Paper]. International Conference on Power Systems Transients (IPST 2011), Delft, Netherlands (7 pages). External link

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Rashidirad, N., Mahseredjian, J., Kocar, I., Karaagac, U., & Saad, O. (2023, July). MANA-based load-flow solution for islanded AC microgrids [Paper]. IEEE Power & Energy Society General Meeting (PESGM 2023), Orlando, FL, USA (1 page). External link

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Seyedi, Y., Karaagac, U., Mahseredjian, J., Haddadi, A., Jacobs, K., & Karimi, H. (2022). Detailed modeling of inverter-based resources. In Advances in Power System Modelling, Control and Stability Analysis (175-203). External link

Seyedi, Y., Mahseredjian, J., Karimi, H., Karaagac, U., & Schwanka Trevisan, A. (2022, June). Fast detection of SSR conditions for wind parks in series-compensated transmission systems [Paper]. 22nd Power Systems Computation Conference (PSCC 2022), Porto, Portugal (7 pages). Published in Electric Power Systems Research, 211. External link

Seyedi, Y., Mahseredjian, J., Karimi, H., Karaagac, U., & Trevisan, A. S. (2022). Fast detection of SSR for wind parks connected to series-compensated transmission systems. Electric Power Systems Research, 211, 6 pages. External link

Seyedi, Y., Karaagac, U., Mahseredjian, J., & Karimi, H. (2022). Scanning methods for stability analysis of inverter-based resources. In Advances in Power System Modelling, Control and Stability Analysis (2nd ed., 663-94). External link

Stepanov, A., Mahseredjian, J., Karaagac, U., & Saad, H. (2021). Adaptive Modular Multilevel Converter Model for Electromagnetic Transient Simulations. IEEE Transactions on Power Delivery, 36(2), 803-813. External link

Stepanov, A., Mahseredjian, J., Karaagac, U., & Saad, H. (2021, July). Adaptive Modular Multilevel Converter Model for Electromagnetic Transient Simulations [Paper]. 2021 IEEE Power and Energy Society General Meeting (PESGM 2021), Washington, D.C., USA (1 page). External link

Stepanov, A., Saad, H., Karaagac, U., & Mahseredjian, J. (2021). Spurious power and its elimination in modular multilevel converter models. Electric Power Systems Research, 190, 9 pages. External link

Stepanov, A., Saad, H., Karaagac, U., & Mahseredjian, J. (2020). Spurious Power Losses in Modular Multilevel Converter Arm Equivalent Model. IEEE Transactions on Power Delivery, 35(1), 205-213. External link

Stepanov, A., Saad, H., Karaagac, U., & Mahseredjian, J. (2020, August). Spurious Power Losses in Modular Multilevel Converter Arm Equivalent Model [Paper]. IEEE Power & Energy Society General Meeting (PESGM 2020), Montréal, Québec (1 page). External link

Stepanov, A., Saad, H., Karaagac, U., & Mahseredjian, J. (2019). Initialization of Modular Multilevel Converter Models for the Simulation of Electromagnetic Transients. IEEE Transactions on Power Delivery, 34(1), 290-300. External link

Stepanov, A., Saad, H., Karaagac, U., & Mahseredjian, J. (2019, June). Spurious power generation in arm equivalent model variants of modular multilevel converter [Paper]. International Conference on Power Systems Transients (IPST 2019), Perpignan, France (6 pages). External link

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Xue, T., Karaagac, U., Kocar, I., Vavdareh, M. B., & Ghafouri, M. (2023, December). Machine Learning Basics and Potential Applications in Power Systems [Paper]. 4th International Conference on Electrical, Communication and Computer Engineering (ICECCE 2023), Dubai, United arab emirates (7 pages). External link

Xue, T., Karaagac, U., Xue, H., & Mahseredjian, J. (2023). Re-examination of small-signal instability in weak grid-connected voltage source converters. Electric Power Systems Research, 223, 7 pages. External link

List generated on: Sat Jun 22 17:25:55 2024 EDT