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Francisco De Leon

Associate Professor Electrical Engineering

    1991 …2020

    Research output per year

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    Research Output

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    2014

    Accurate measurement of the air-core inductance of iron-core transformers with a non-ideal low-power rectifier

    De Leon, F., Jazebi, S. & Farazmand, A., Feb 2014, In : IEEE Transactions on Power Delivery. 29, 1, p. 294-296 3 p., 6668958.

    Research output: Contribution to journalArticle

    Analysis, modeling, and simulation of the phase-hop condition in transformers: The largest inrush currents

    Farazmand, A., De León, F., Zhang, K. & Jazebi, S., Aug 2014, In : IEEE Transactions on Power Delivery. 29, 4, p. 1918-1926 9 p., 6742628.

    Research output: Contribution to journalArticle

    Calculation of cable thermal rating considering non-isothermal earth surface

    Purushothaman, S., de León, F. & Terracciano, M., Jul 1 2014, In : IET Generation, Transmission and Distribution. 8, 7, p. 1354-1361 8 p.

    Research output: Contribution to journalArticle

    Energy and economic impacts of the application of CVR in heavily meshed secondary distribution networks

    Sandraz, J. P. A., Macwan, R., Diaz-Aguiló, M., McClelland, J., De León, F., Czarkowski, D. & Comack, C., Aug 2014, In : IEEE Transactions on Power Delivery. 29, 4, p. 1692-1700 9 p., 6748103.

    Research output: Contribution to journalArticle

    Experimental determination of the ZIP coefficients for modern residential, commercial, and industrial loads

    Bokhari, A., Alkan, A., Dogan, R., Diaz-Aguilo, M., De Leon, F., Czarkowski, D., Zabar, Z., Birenbaum, L., Noel, A. & Uosef, R. E., Jun 2014, In : IEEE Transactions on Power Delivery. 29, 3, p. 1372-1381 10 p., 6648709.

    Research output: Contribution to journalArticle

    Improved computation of core inductance for fast transient analysis of transformers

    Gómez, P., De León, F. & Espino-Cortés, F. P., Aug 2014, In : IEEE Transactions on Power Delivery. 29, 4, p. 2034-2036 3 p., 6842673.

    Research output: Contribution to journalArticle

    Ladder-type soil model for dynamic thermal rating applicable to real-time operation of underground power cables

    Diaz-Aguilo, M., De Leon, F., Jazebi, S. & Terracciano, M., Nov 2014, In : IEEE Power and Energy Technology Systems Journal. 1, p. 21-30

    Research output: Contribution to journalArticle

    Leakage inductance design of toroidal transformers by sector winding

    De León, F., Purushothaman, S. & Qaseer, L., 2014, In : IEEE Transactions on Power Electronics. 29, 1, p. 473-480 8 p., 6473895.

    Research output: Contribution to journalArticle

    Thermal analysis of power cables in free air: Evaluation and improvement of the IEC standard ampacity calculations

    Sedaghat, A. & De Leon, F., Oct 1 2014, In : IEEE Transactions on Power Delivery. 29, 5, p. 2306-2314 9 p., 6716093.

    Research output: Contribution to journalArticle

    Transformer leakage flux models for electromagnetic transients: Critical review and validation of a new model

    Lambert, M., Martinez-Duro, M., Mahseredjian, J., De Leon, F. & Sirois, F., Oct 1 2014, In : IEEE Transactions on Power Delivery. 29, 5, p. 2180-2188 9 p., 6766808.

    Research output: Contribution to journalArticle

    2013

    A comparative study on π and T equivalent models for the analysis of transformer ferroresonance

    Jazebi, S., Farazmand, A., Murali, B. P. & De León, F., 2013, In : IEEE Transactions on Power Delivery. 28, 1, p. 526-528 3 p., 6355646.

    Research output: Contribution to journalArticle

    Closed-form computation of electromagnetic fields in induction motors

    De León, F. & Purushothaman, S., 2013, In : International Journal of Power and Energy Systems. 33, 2, p. 62-70 9 p.

    Research output: Contribution to journalArticle

    Development of data translators for interfacing power-flow programs with EMTP-type programs: Challenges and lessons learned

    De León, F., Czarkowski, D., Spitsa, V., Martinez, J. A., Noda, T., Iravani, R., Wang, X., Davoudi, A., Chang, G. W., Mehrizi-Sani, A. & Kocar, I., 2013, In : IEEE Transactions on Power Delivery. 28, 2, p. 1192-1201 10 p., 6449395.

    Research output: Contribution to journalArticle

    Duality-synthesized circuit for eddy current effects in transformer windings

    Jazebi, S., De Leon, F. & Vahidi, B., 2013, In : IEEE Transactions on Power Delivery. 28, 2, p. 1063-1072 10 p., 6466411.

    Research output: Contribution to journalArticle

    Dual reversible transformer model for the calculation of low-frequency transients

    Jazebi, S., De Leon, F., Farazmand, A. & Deswal, D., 2013, In : IEEE Transactions on Power Delivery. 28, 4, p. 2509-2517 9 p., 6555934.

    Research output: Contribution to journalArticle

    Field-validated load model for the analysis of CVR in distribution secondary networks: Energy conservation

    Diaz-Aguilo, M., Sandraz, J., Macwan, R., De Leon, F., Czarkowski, D., Comack, C. & Wang, D., 2013, In : IEEE Transactions on Power Delivery. 28, 4, p. 2428-2436 9 p., 6563172.

    Research output: Contribution to journalArticle

    Improvement of a method to compute the inductance matrix of multilayer transformer windings for very fast transients

    Gomez, P., De Leon, F. & Espino-Cortes, F. P., 2013, In : IEEE Transactions on Power Delivery. 28, 2, p. 1245-1246 2 p., 6479714.

    Research output: Contribution to journalArticle

    Long duration overvoltages due to current backfeeding in secondary networks

    Salcedo, R., Ran, X., De Leon, F., Czarkowski, D. & Spitsa, V., 2013, In : IEEE Transactions on Power Delivery. 28, 4, p. 2500-2508 9 p., 6579778.

    Research output: Contribution to journalArticle

    Parametric study of losses in cross-bonded cables: Conductors transposed versus conductors nontransposed

    Moghe, P. & De Leon, F., 2013, In : IEEE Transactions on Power Delivery. 28, 4, p. 2273-2281 9 p., 6570550.

    Research output: Contribution to journalArticle

    Validated transient heat-transfer model for underground transformer in rectangular vault

    Sandraz, J., De Leon, F. & Cultrera, J., 2013, In : IEEE Transactions on Power Delivery. 28, 3, p. 1770-1778 9 p., 6516999.

    Research output: Contribution to journalArticle

    2012

    AC power theory from poynting theorem: Identification of the power components of magnetic saturating and hysteretic circuits

    De León, F., Qaseer, L. & Cohen, J., 2012, In : IEEE Transactions on Power Delivery. 27, 3, p. 1548-1556 9 p., 6178032.

    Research output: Contribution to journalArticle

    Analysis of voltage profile problems due to the penetration of distributed generation in low-voltage secondary distribution networks

    Chen, P. C., Salcedo, R., Zhu, Q., De Leon, F., Czarkowski, D., Jiang, Z. P., Spitsa, V., Zabar, Z. & Uosef, R. E., 2012, In : IEEE Transactions on Power Delivery. 27, 4, p. 2020-2028 9 p., 6298062.

    Research output: Contribution to journalArticle

    Closed-form analysis of squirrel-cage induction motors with anisotropic modeling of stator and rotor

    Qaseer, L., Purushothaman, S. & De León, F., 2012, In : IEEE Transactions on Energy Conversion. 27, 3, p. 553-560 8 p., 6198879.

    Research output: Contribution to journalArticle

    Comparing the T and \pi equivalent circuits for the calculation of transformer inrush currents

    De Leon, F., Farazmand, A. & Joseph, P., 2012, In : IEEE Transactions on Power Delivery. 27, 4, p. 2390-2398 9 p., 6287619.

    Research output: Contribution to journalArticle

    Equivalent circuit for the leakage inductance of multiwinding transformers: Unification of terminal and duality models

    Álvarez-Mariño, C., De León, F. & López-Fernández, X. M., Jan 2012, In : IEEE Transactions on Power Delivery. 27, 1, p. 353-361 9 p., 6095353.

    Research output: Contribution to journalArticle

    Heat-transfer model for toroidal transformers

    Purushothaman, S. & De León, F., Apr 2012, In : IEEE Transactions on Power Delivery. 27, 2, p. 813-820 8 p., 6165402.

    Research output: Contribution to journalArticle

    On the transient behavior of large-scale distribution networks during automatic feeder reconfiguration

    Spitsa, V., Ran, X., Salcedo, R., Martinez, J. F., Uosef, R. E., De León, F., Czarkowski, D. & Zabar, Z., 2012, In : IEEE Transactions on Smart Grid. 3, 2, p. 887-896 10 p., 6204243.

    Research output: Contribution to journalArticle

    Optimal distributed voltage regulation for secondary networks with DGs

    Yu, L., Czarkowski, D. & De León, F., 2012, In : IEEE Transactions on Smart Grid. 3, 2, p. 959-967 9 p., 6204238.

    Research output: Contribution to journalArticle

    Thermal analysis of cables in unfilled troughs: Investigation of the IEC standard and a methodical approach for cable rating

    Terracciano, M., Purushothaman, S., De León, F. & Farahani, A. V., 2012, In : IEEE Transactions on Power Delivery. 27, 3, p. 1423-1431 9 p., 6218216.

    Research output: Contribution to journalArticle

    Three-phase time-domain simulation of very large distribution networks

    Spitsa, V., Salcedo, R., Ran, X., Martinez, J. F., Uosef, R. E., De Leon, F., Czarkowski, D. & Zabar, Z., Apr 2012, In : IEEE Transactions on Power Delivery. 27, 2, p. 677-687 11 p., 6134697.

    Research output: Contribution to journalArticle

    UNiversal controller for the interconnection of distributed generators with utility lines at customer level voltages

    Yu, L., Purushothaman, S., Joseph, P., Li, B., Grawitz, T., De Léon, F., Czarkowski, D., Carbonara, J., Sciano, D. & Jolly, M., 2012, In : International Journal of Power and Energy Systems. 32, 3, p. 131-138 8 p.

    Research output: Contribution to journalArticle

    2011

    Accurate and efficient computation of the inductance matrix of transformer windings for the simulation of very fast transients

    Gómez, P. & De León, F., Jul 2011, In : IEEE Transactions on Power Delivery. 26, 3, p. 1423-1431 9 p., 5711008.

    Research output: Contribution to journalArticle

    Circuito equivalente de un transformador con regulación

    Translated title of the contribution: Equivalent circuit of a regulating transformerMartínez-Velasco, J. A. & de León, F., Jun 2011, In : Ingeniare. 19, 1, p. 93-109 17 p.

    Research output: Contribution to journalArticle

    Open Access

    Combined field and circuit theories in squirrel-cage induction motors based on micro-T circuit model

    Qaseer, L., De León, F. & Purushothaman, S., Jul 2011, In : Applied Computational Electromagnetics Society Journal. 26, 7, p. 551-560 10 p.

    Research output: Contribution to journalArticle

    Design formulas for the leakage inductance of toroidal distribution transformers

    Hernanádez, I., De León, F. & Gómez, P., Oct 2011, In : IEEE Transactions on Power Delivery. 26, 4, p. 2197-2204 8 p., 5936135.

    Research output: Contribution to journalArticle

    Effects of conductor counter-transposition on the positive-sequence impedance and losses of cross-bonded cables

    De Léon, F., Márquez-Asensio, M. L. & Álvarez-Cordero, G., Jul 2011, In : IEEE Transactions on Power Delivery. 26, 3, p. 2060-2063 4 p., 5872034.

    Research output: Contribution to journalArticle

    Eliminating subsynchronous oscillations with an induction machine damping unit (IMDU)

    Purushothaman, S. & De León, F., Feb 2011, In : IEEE Transactions on Power Systems. 26, 1, p. 225-232 8 p., 5463045.

    Research output: Contribution to journalArticle

    Impulse-response analysis of toroidal core distribution transformers for dielectric design

    Gómez, P., De León, F. & Hernández, I. A., Apr 2011, In : IEEE Transactions on Power Delivery. 26, 2, p. 1231-1238 8 p., 5645726.

    Research output: Contribution to journalArticle

    Mitigation of inrush currents in network transformers by reducing the residual flux with an ultra-low-frequency power source

    Kovan, B., De Leon, F., Czarkowski, D., Zabar, Z. & Birenbaum, L., Jul 2011, In : IEEE Transactions on Power Delivery. 26, 3, p. 1563-1570 8 p., 5706392.

    Research output: Contribution to journalArticle

    Tools for analysis and design of distributed resources-Part II: Tools for planning, analysis and design of distribution networks with distributed resources

    Martinez, J. A., De Léon, F., Mehrizi-Sani, A., Nehrir, M. H., Wang, C. & Dinavahi, V., Jul 2011, In : IEEE Transactions on Power Delivery. 26, 3, p. 1653-1662 10 p., 5741003.

    Research output: Contribution to journalArticle

    2010

    A robust multiphase power flow for general distribution networks

    Dilek, M., De León, F., Broadwater, R. & Lee, S., May 2010, In : IEEE Transactions on Power Systems. 25, 2, p. 760-768 9 p., 5371874.

    Research output: Contribution to journalArticle

    Modelling transformer core joints using Gaussian models for the magnetic flux density and permeability

    Hernández, I., De León, F., Cañedo, J. M. & Olivares-Galván, J. C., Nov 2010, In : IET Electric Power Applications. 4, 9, p. 761-771 11 p.

    Research output: Contribution to journalArticle

    Selection of copper against aluminium windings for distribution transformers

    Olivares-Galván, J. C., De León, F., Georgilakis, P. S. & Escarela-Pérez, R., Jul 2010, In : IET Electric Power Applications. 4, 6, p. 474-485 12 p., IEPAAN000004000006000474000001.

    Research output: Contribution to journalArticle

    Separation of core losses in distribution transformers using experimental methods

    Olivares-Galvan, J. C., Escarela-Perez, R., De León, F., Campero-Littlewood, E. & Aviles Cruz, C., Dec 2010, In : Canadian Journal of Electrical and Computer Engineering. 35, 1, p. 33-39 7 p.

    Research output: Contribution to journalArticle

    2009

    Dual three-winding transformer equivalent circuit matching leakage measurements

    de Leòn, F. & Martinez, J. A., 2009, In : IEEE Transactions on Power Delivery. 24, 1, p. 160-168 9 p.

    Research output: Contribution to journalArticle

    Simulation tools for analysis and design of distribution networks with distributed energy resources

    Martinez, J. A., De Leon, F. & Dinavahi, V., 2009, In : Electrical Power and Utilisation Journal. XV, 1, p. 33-50

    Research output: Contribution to journalArticle

    2008

    Effects of backfilling on cable ampacity analyzed with the finite element method

    de León, F. & Anders, G. J., Apr 2008, In : IEEE Transactions on Power Delivery. 23, 2, p. 537-543 7 p.

    Research output: Contribution to journalArticle

    Unbalanced multiphase load-flow using a positive-sequence load-flow program

    Peralta, J. A., de León, F. & Mahseredjian, J., May 2008, In : IEEE Transactions on Power Systems. 23, 2, p. 469-476 8 p.

    Research output: Contribution to journalArticle

    2004

    2D finite-element determination of tank wall losses in pad-mounted transformers

    Olivares, J. C., Escarela-Perez, R., Kulkarni, S. V., De León, F. & Venegas-Vega, M. A., Oct 2004, In : Electric Power Systems Research. 71, 2, p. 179-185 7 p.

    Research output: Contribution to journalArticle