Member

PhD, Power Electronics and Electric Drives, University of Coimbra, Coimbra, Portugal, 2012.
E. E. Diploma, Energy, University of Coimbra, Coimbra, Portugal, 2007.
Estima, J. O.; Gyftakis, K. N.: ''Voltage-Source Inverter-Fed Drives''; Diagnosis and Fault Tolerance of Electrical Machines, Power Electronics and Drives, A. J. M. Cardoso (Editor), , 7-76 pp., IET - The Institution of Engineering and Technology (978-1-78561-531-3), London, UK, 2018.
Matos, D. M. B.; Estima, J. O.; Cardoso, A. J. M.: ''Fault Analysis of Three-Level NPC Inverters in Synchronous Reluctance Motor Drives''; Technological Innovation for Cyber-Physical Systems, Luís M. Camarinha-Matos, António J. Falcão, Nazanin Vafaei and Shirin Najdi (Editor), , 206-216 pp., Springer International Publishing (978-3-319-31164-7), Cham, Switzerland, 2016.
Estima, J. O.; Cardoso, A. J. M.: ''Comparison of Different Modulation Strategies Applied to PMSM Drives Under Inverter Fault Conditions''; Technological Innovation for Sustainability, Luís M. Camarinha-Matos (Editor), , 493-501 pp., Springer (978-3-642-19169-5), Boston, USA, 2011.
Jlassi, I.; Estima, J. O.; El Khil, S. K.; Bellaaj, N. M.; Cardoso, A. J. M.: ''A Robust Observer-Based Method for IGBTs and Current Sensors Fault Diagnosis in Voltage-Source Inverters of PMSM Drives''; IEEE Transactions on Industry Applications, Vol. 53, No. 3, pp. 2894-2905, May / June, 2017.
El Khil, S. K.; Jlassi, I.; Estima, J. O.; Bellaaj, N. M.; Cardoso, A. J. M.: ''Current Sensor Fault Detection and Isolation Method for PMSM Drives, Using Average Normalized Currents''; Electronics Letters, Vol. 52, No. 17, pp. 1434-1436, August, 2016.
Jlassi, I.; Estima, J. O.; El Khil, S. K.; Bellaaj, N. M.; Cardoso, A. J. M.: ''Multiple Open-Circuit Faults Diagnosis in Back-to-Back Converters of PMSG Drives for Wind Turbine Systems''; IEEE Transactions on Power Electronics, Vol. 30, No. 5, pp. 2689-2702, May, 2015.
Stabile, A.; Estima, J. O.; Chiara Boccaletti; Cardoso, A. J. M.: ''Converter Power Loss Analysis in a Fault-Tolerant Permanent Magnet Synchronous Motor Drive''; IEEE Transactions on Industrial Electronics, Vol. 62, No. 3, pp. 1984 - 199, March, 2015.
Matos, D. M. B.; Estima, J. O.; Yahia, K.; Cardoso, A. J. M.: ''Modeling and Implementation of MTPA Control Strategy for SynRM Variable Speed Drives''; International Review of Electrical Engineering, Vol. 9, No. 6, pp. 1103-1110, November / December, 2014.
Freire, N. M. A.; Estima, J. O.; Cardoso, A. J. M.: ''A Voltage-Based Approach without Extra Hardware for Open-Circuit Fault Diagnosis in Closed-Loop PWM AC Regenerative Drives''; IEEE Transactions on Industrial Electronics, Vol. 61, No. 9, pp. 4960 - 497, September, 2014.
Henao, H.; Capolino, G.-A.; Fernandez-Cabanas, M.; Filippetti, F.; Bruzzese, C.; Strangas, E.; Pusca, R.; Estima, J. O.; Riera-Guasp, M.; Hedayati-Kia, S.: ''Trends in Fault Diagnosis for Electrical Machines: A Review of Diagnostic Techniques''; IEEE Industrial Electronics Magazine, Vol. 8, No. 2, pp. 31-42, June, 2014.
Marques, J.; Estima, J. O.; Gameiro, N. S.; Cardoso, A. J. M.: ''A New Diagnostic Technique for Real-Time Diagnosis of Power Converter Faults in Switched Reluctance Motor Drives''; IEEE Transactions on Industry Applications, Vol. 50, No. 3, pp. 1854 - 186, May / June, 2014.
Freire, N. M. A.; Estima, J. O.; Cardoso, A. J. M.: ''A New Approach for Current Sensor Fault Diagnosis in PMSG Drives for Wind Energy Conversion Systems''; IEEE Transactions on Industry Applications, Vol. 50, No. 2, pp. 1206-1214, March / April, 2014.
Freire, N. M. A.; Estima, J. O.; Cardoso, A. J. M.: ''A Fault-Tolerant Direct Controlled PMSG Drive for Wind Energy Conversion Systems''; Acta Electrotechnica et Informatica, Vol. 61, No. 2, pp. 821-834, February, 2014.
Freire, N. M. A.; Estima, J. O.; Cardoso, A. J. M.: ''Open-Circuit Fault Diagnosis in PMSG Drives for Wind Turbine Applications''; IEEE Transactions on Industrial Electronics, Vol. 60, No. 9, pp. 3957-3967, September, 2013.
Estima, J. O.; Cardoso, A. J. M.: ''A New Algorithm for Real-Time Multiple Open-Circuit Fault Diagnosis in Voltage-Fed PWM Motor Drives by the Reference Current Errors''; IEEE Transactions on Industrial Electronics, Vol. 60, No. 8, pp. 3496 - 350, August, 2013.
Estima, J. O.; Cardoso, A. J. M.: ''Efficiency Analysis of Drive Train Topologies Applied to Electric/Hybrid Vehicles''; IEEE Transactions on Vehicular Technology, Vol. 61, No. 3, pp. 1021-1031, March, 2012.
Freire, N. M. A.; Estima, J. O.; Cardoso, A. J. M.: ''A Comparative Analysis of PMSG Drives Based on Vector Control and Direct Control Techniques for Wind Turbine Applications''; Electrical Review, Vol. 88, No. 1a, pp. 184 - 187, January, 2012.
Estima, J. O.; Cardoso, A. J. M.: ''A New Approach for Real-Time Multiple Open-Circuit Fault Diagnosis in Voltage Source Inverters''; IEEE Transactions on Industry Applications, Vol. 47, No. 6, pp. 2487-2494, November / December, 2011.
Bento, F. J. F.; Estima, J. O.; Cardoso, A. J. M.: ''Performance Evaluation of Three Variable Speed AC Motor Drives under Different Load Profiles''; International Conference on Industrial Engineering, Applications and Manufacturing, Moscow, Russian Federation, pp. 1-6, May, 2018.
Bento, F. J. F.; Estima, J. O.; Cardoso, A. J. M.: ''Performance Comparison of Three Different AC Variable Speed Motor Drives''; International Conference on Energy Efficiency in Motor Driven Systems, Rome, Italy, pp. 746-758, September, 2017.
El Khil, S. K.; Jlassi, I.; Estima, J. O.; Bellaaj, N. M.; Cardoso, A. J. M.: ''Detection and Isolation of Open-Switch and Current Sensor Faults in PMSM Drives, Through Stator Current Analysis''; International Symposium on Electromagnetic Fields in Mechatronics, Electrical and Electronic Engineering, Tinos, Greece, pp. 373-379, August / September, 2017.
Gómez, M.; Ribeiro, E. F. F.; Estima, J. O.; Chiara Boccaletti; Cardoso, A. J. M.: ''Development of an Effective MPPT Method Suitable to a Stand-Alone, Low-Cost Wind Turbine System''; Annual Conference of the IEEE Industrial Electronics Society, Firenze, Italy, pp. 5550-5555, October, 2016.
Matos, D. M. B.; Estima, J. O.; Cardoso, A. J. M.: ''Performance of a Synchronous Reluctance Motor Drive with a Fault-Tolerant Three-Level Neutral Point Clamped Inverter''; International Conference on Electrical Machines, Lausanne, Switzerland, pp. 1152-1159, September, 2016.
Elsayed, W. M.; Estima, J. O.; Chiara Boccaletti; Cardoso, A. J. M.: ''Energy Management Strategy of a Propulsion System with Supercapacitors for Electric and Hybrid Vehicles''; IEEE International Conference on Power Electronics and Motion Control, Varna, Bulgaria, pp. 1210-1215, September, 2016.
Matos, D. M. B.; Estima, J. O.; Cardoso, A. J. M.: ''Performance Evaluation of Synchronous Reluctance Motor Drives Under Inverter Fault Conditions''; IEEE International Symposium on Diagnostics for Electrical Machines, Power Electronics & Drives, Guarda, Portugal, pp. 448-454, September, 2015.
Estima, J. O.; Cardoso, A. J. M.: ''Thermal Evaluation of Different Drive Train Topologies for Electric/Hybrid Vehicles''; International Conference on Electrical Machines, Berlin, Germany, pp. 8, September, 2014.
Yahia, K.; Estima, J. O.; Cardoso, A. J. M.: ''Modeling Synchronous Reluctance Motors Including Saturation, Iron Losses and Mechanical Losses''; International Symposium on Power Electronics, Electrical Drives, Automation and Motion, Ischia, Italy, pp. 595-600, June, 2014.
Estima, J. O.; Cardoso, A. J. M.: ''Efficiency Analysis of Synchronous Reluctance Motors''; International Conference on Engineering, Covilhã, Portugal, pp. 9, November, 2013.
Estima, J. O.; Cardoso, A. J. M.: ''Super Premium Synchronous Reluctance Motor Evaluation''; International Conference on Energy Efficiency in Motor Driven Systems, Rio de Janeiro, Brazil, pp. 10, October, 2013.
Drif, M.; Drif, Ma.; Estima, J. O.; Cardoso, A. J. M.: ''The Use of the Stator Instantaneous Complex Apparent Impedance Signature Analysis for Discriminating Stator Winding Faults and Supply Voltage Unbalance in Three-Phase Induction Motors''; IEEE Energy Conversion Congress and Exposition, Denver, USA, pp. 4403-4411, September, 2013.
Drif, M.; Estima, J. O.; Cardoso, A. J. M.: ''The Use of the Stator Instantaneous Complex Apparent Impedance Signature Analysis for Discriminating Stator Winding Faults and Supply Voltage Unbalance in Three-Phase Induction Motors''; IEEE Energy Conversion Congress and Exposition, Denver, USA, pp. 4403-4411, September, 2013.
Estima, J. O.; Freire, N. M. A.; Cardoso, A. J. M.: ''Recent Advances in Fault Diagnosis by Park's Vector Approach''; IEEE Workshop on Electrical Machines Design, Control and Diagnosis, Paris, France, pp. 10, March, 2013.
Marques, J.; Estima, J. O.; Gameiro, N. S.; Cardoso, A. J. M.: ''A New Diagnostic Technique for Real-Time Diagnosis of Power Converter Faults in Switched Reluctance Motor Drives''; Applied Power Electronics Conference and Exposition, Long Beach, USA, pp. 1192-1198, March, 2013.
Freire, N. M. A.; Estima, J. O.; Cardoso, A. J. M.: ''A New Approach for Current Sensor Fault Diagnosis in PMSG Drives for Wind Energy Conversion Systems''; IEEE Energy Conversion Congress and Exposition, Raleigh, USA, pp. 2083-2090, September, 2012.
Drif, M.; Estima, J. O.; Cardoso, A. J. M.: ''Discriminating Rotor Cage Faults and Mechanical Load Oscillations in Three-Phase Induction Motors by the Stator Instantaneous Complex Apparent Impedance''; IEEE Energy Conversion Congress and Exposition, Raleigh, USA, pp. 3024-3031, September, 2012.
Freire, N. M. A.; Estima, J. O.; Cardoso, A. J. M.: ''A Voltage-Based Approach for Open-Circuit Fault Diagnosis in Voltage-Fed SVM Motor Drives Without Extra Hardware''; International Conference on Electrical Machines, Marseille, France, pp. 2378-2383, September, 2012.
Estima, J. O.; Cardoso, A. J. M.: ''Fast Fault Detection, Isolation and Reconfiguration in Fault-Tolerant Permanent Magnet Synchronous Motor Drives''; IEEE Energy Conversion Congress and Exposition, Raleigh, USA, pp. 3617-3624, September, 2012.
Estima, J. O.; Cardoso, A. J. M.: ''Efficiency Evaluation of Fault-Tolerant Operating Strategies Applied to Three-Phase Permanent Magnet Synchronous Motor Drives''; International Conference on Electrical Machines, Marseille, France, pp. 2411-2417, September, 2012.
Estima, J. O.; Cardoso, A. J. M.: ''Single Power Switch Open-Circuit Fault Diagnosis in Voltage-Fed PWM Motor Drives by the Reference Current Errors''; IEEE International Symposium on Diagnostics for Electrical Machines, Power Electronics & Drives, Bologna, Italy, pp. 8, September, 2011.
Freire, N. M. A.; Estima, J. O.; Cardoso, A. J. M.: ''Multiple Open-Circuit Fault Diagnosis in Voltage-Fed PWM Motor Drives Using the Current Park’s Vector Phase and the Currents Polarity''; IEEE International Symposium on Diagnostics for Electrical Machines, Power Electronics & Drives, Bologna, Italy, pp. 8, September, 2011.
Estima, J. O.; Cardoso, A. J. M.: ''A Fault-Tolerant Permanent Magnet Synchronous Motor Drive with Integrated Voltage Source Inverter Open-Circuit Faults Diagnosis''; European Conference on Power Electronics and Applications, Birmingham, UK, pp. 10, August / September, 2011.
Freire, N. M. A.; Estima, J. O.; Cardoso, A. J. M.: ''Comparison of PMSG Drives Based on Vector Control and Direct Control Techniques for Wind Turbine Applications''; Portuguese-Spanish Conference on Electrical Engineering, Ponta Delgada, Portugal, pp. 6, June / July, 2011.
Freire, N. M. A.; Estima, J. O.; Cardoso, A. J. M.: ''Comparison of Distinct Modulation Techniques Applied to PMSG Drives for Wind Turbine Applications Under Faulty Operating Conditions''; International Conference on Clean Electrical Power, Ischia, Italy, pp. 63-68, June, 2011.
Freire, N. M. A.; Estima, J. O.; Cardoso, A. J. M.: ''Converters Fault-Diagnosis in PMSG Drives for Wind Turbine Applications''; Annual Conference of the IEEE Industrial Electronics Society, Phoenix, USA, pp. 6, November, 2010.
Estima, J. O.; Cardoso, A. J. M.: ''Performance Analysis of a PMSM Drive for Hybrid Electric Vehicles''; International Conference on Power Electronics Machines and Drives, Rome, Italy, pp. 1-6, September, 2010.
Estima, J. O.; Cardoso, A. J. M.: ''A New Approach for Real-Time Multiple Open-Circuit Fault Diagnosis in Voltage Source Inverters''; IEEE Energy Conversion Congress and Exposition, Atlanta, USA, pp. 8, September, 2010.
Estima, J. O.; Cardoso, A. J. M.: ''A Novel Diagnostic Method for Single Power Switch Open-Circuit Faults in Voltage-Fed PWM Motor Drives''; International Symposium on Power Electronics, Electrical Drives, Automation and Motion, Pisa, Italy, pp. 535-540, June, 2010.
Estima, J. O.; Fernandes, J. L. J.; Cardoso, A. J. M.: ''Faulty Operation Analysis of Permanent Magnet Synchronous Generator Drives for Wind Turbine Applications''; International Conference on Power Electronics Machines and Drives, Brighton, UK, pp. 6, April, 2010.
Estima, J. O.; Cardoso, A. J. M.: ''Performance Evaluation of DTC-SVM Permanent Magnet Synchronous Motor Drives Under Inverter Fault Conditions''; International Conference on Power Electronics Machines and Drives, Porto, Portugal, pp. 1228-1233, November, 2009.
Estima, J. O.; Cardoso, A. J. M.: ''Impact of Inverter Faults in the Overall Performance of Permanent Magnet Synchronous Motor Drives''; IEEE International Electric Machines and Drives Conference, Miami, USA, pp. 1319-1325, May, 2009.
Estima, J. O.; Cardoso, A. J. M.: ''Performance Analysis of Permanent Magnet Synchronous Motor Drives Under Inverter Fault Conditions''; International Conference on Electrical Machines, Vilamoura, Portugal, pp. 1-6, September, 2008.
Estima, J. O.; Cardoso, A. J. M.: ''The Occurrence of Faults in Permanent Magnet Synchronous Motor Drives and its Effects on the Power Supply Quality''; International Conference on Renewable Energies and Power Quality, Santander, Spain, pp. 1-6, March, 2008.
Estima, J. O.; Cardoso, A. J. M.; Mendes, A. M. S.: ''Simulação de um Accionamento Baseado num Motor Síncrono de Ímanes Permanentes''; Portuguese-Spanish Conference on Electrical Engineering, Funchal, Portugal, pp. 1-6, July, 2007.
Estima, J. O.; Cardoso, A. J. M.; Mendes, A. M. S.: ''Simulation of a Permanent Magnet Synchronous Motor Drive with Voltage Source Inverter Fault Diagnosis''; International Congress on Condition Monitoring and Diagnostic Engineering Management, Faro, Portugal, pp. 587-595, June, 2007.
Madeiras, A. J. C., ''Flywheels as a Storage Device in Electric/Hybrid Vehicles'', Supervisor: Cardoso, A. J. M., Co-Supervisor: Estima, J. O., University of Beira Interior, Portugal, 2015.
Estima, J. O., ''Development and Analysis of Permanent Magnet Synchronous Motor Drives with Fully Integrated Inverter Fault-Tolerant Capabilities'', Supervisor: Cardoso, A. J. M., University of Coimbra, Portugal, 2012.