BSc, MSc (Dist.), PhD

Research Interests:

• Analysis of Dynamic Performance and Robustness of Silicon and SiC Based Power Electronics Converters in Systems

• Modelling and Characterization of MOS Transistors in Modular Multi-level Converters Used in Wind Powered or Hydroelectric High Voltage DC Systems

United Kingdom

PhD Thesis accessible on:

http://wrap.warwick.ac.uk/id/eprint/82110 

Background

Dr Saeed Jahdi has recieved the B.Sc. degree in Electrical Power Engineering from University of Science and Technology in August 2010, the Masters Degree (with Distinction) in Power Systems in April 2012 from City University London while his MSc thesis advisor were Prof. L.L. Lai (Fellow IEEE, Fellow IET) and the degree of PhD in Power Electronics from University of Warwick in 2015 while his PhD advisors were Dr Olayiwola Alatise, Prof Phil Mawby and Prof Li Ran. His PhD scholarship was funded by an EPSRC research grant as a project on development of grid-connected voltage-sourced converters (VSCs) using the new generation of power devices and resulted in 13 direct IEEE pepers from the thesis, inlcuding 6 first-author IEEE transations. Dr Jahdi's current reserach interests are Power Electronics Converters and Devices for Next Generation Power Systems.

Memberships:

IET
IEEE
IEEE Power Electronics Society
IEEE Industrial Electronics Society

Publications (As of 2017):

IEEE Journal Publications:

1- Jahdi, S.; Alatise, O.; Fisher, C.; Ran, L.; Mawby, P., ''An Evaluation of Silicon Carbide Unipolar Technologies for Electric Vehicle Drive-trains," Emerging and Selected Topics in Power Electronics, IEEE Journal of, vol.2, no.3, pp.517-528, Sept. 2014.

2- Jahdi, S.; Alatise, O.; Ran, L.; Mawby, P., ''Accurate Analytical Modeling for Switching Energy of PiN Diodes Reverse Recovery", Industrial Electronics, IEEE Transactions on, vol.62, no.3, pp.1461-1470, March 2015.

3- Jahdi, S.; Alatise, O.; Alexakis, P.; Ran, L.; Mawby, P., ''The Impact of Temperature and Switching Rate on the Dynamic Characteristics of Silicon Carbide Schottky Barrier Diodes and MOSFETs", Industrial Electronics, IEEE Transactions on, vol.62, no.1, pp.163-171, Jan. 2015.

4- Jahdi, S.; Alatise, O.; Ran, L.; Mawby, P., ''Analytical Modelling of Switching Energy of Silicon Carbide Schottky Diodes as Functions of dIDS/dt and Temperature", Power Electronics, IEEE Transactions on, vol.30, no.6, pp.3345-3355, June 2015.

5- Jahdi, S.; Alatise, O.; Fisher, C.; Ran, L.; Mawby, P., ''An Analysis of the Switching Performance and Reliability of Power MOSFETs Body Diodes: A Technology Evaluation", Power Electronics, IEEE Transactions on, vol.30, no.5, pp.2383-2394, May 2015.

6- Jahdi, S.; O. Alatise; J. A. Ortiz Gonzalez; R. Bonyadi; L. Ran and P. Mawby, "Temperature and Switching Rate Dependence of Crosstalk in Si-IGBT and SiC Power Modules," Industrial Electronics, IEEE Transactions on, vol. 63, no. 2, pp. 849-863, Feb. 2016.

7- Alexakis, P.; Alatise, O.; Hu, J.; Jahdi, S.; Ran, L.; Mawby, P., ''Improved Electrothermal Ruggedness in SiC MOSFETs compared with Silicon IGBTs", Electron Device, IEEE Transactions on, vol.61, no.7, pp.2278-2286, July 2014.

8- Bonyadi, R.; Alatise, O.; Jahdi, S.; Hu, J.; Mawby, P., ''Compact Electro-Thermal Reliability Modelling and Experimental Characterisation of Bipolar Latch-up in SiC and CoolMOS Power MOSFETs", Power Electronics, IEEE Transactions on, vol.30, no.12, pp.6978-6992, Dec. 2015.

Peer-Reviewed Journal Publications (Except IEEE):

9- Jahdi, S.; Alatise, O.; Mawby, P.; ''Temperature and dIDS/dt Dependence of the Switching Energy of SiC Schottky Diodes in Clamped Inductive Switching Applications", Materials Science Forum: Silicon Carbide and Related Materials 2013, Vol.778,780, pp. 816,819.

10- Jahdi, S.; Lai, L.; Nankoo, D.; ''Renewable Hybrids Grid-Connection Using Converter Interferences'', International Journal of Sustainable Energy Development (IJSED), Vol.1, no.2, pp. 51-57.

Refereed Conference Publications:

11- S. Jahdi, O. Alatise, J. A. Ortiz Gonzalez, L. Ran and P. A. Mawby, "Comparative Analysis of False Turn-ON in Si-Bipolar and SiC-Unipolar Devices", IEEE Energy Conversion Congress and Exposition (ECCE'15), pp.2239,2246, Montreal, Canada, 20-24 Sep. 2015.

12- S. Jahdi, O. Alatise, J. A. Ortiz Gonzalez, P. Gammon, L. Ran and P. A. Mawby, "Investigation of Parasitic Turn-ON in Silicon IGBT and SiC MOSFET Devices", IEEE Power Electronics and Applications (EPE'15-ECCE Europe), 17th European Conference, Geneva, Switzerland, 8-10 Sep. 2015.

13- Bonyadi, R.; Alatise, O.; Jahdi, S.; Gonzalez, J.O.; Ran, L.; Mawby, P.A., "Physics based Modelling and Experimental Charachtrization of Parasitic Turn-on in IGBTs", IEEE Power Electronics and Applications (EPE’15-ECCE Europe), 17th European Conference, Geneva, Switzerland, 8-10 Sep 2015.

14- Jahdi, S.; Alatise, O.; Alexakis, P.; Li Ran; Mawby, P., "Electrothermal modeling and characterization of SiC Schottky and silicon PiN diodes switching transients," IEEE Energy Conversion Congress and Exposition (ECCE'14), pp.2817-2823, 14-18 Sept. 2014.

15- Jahdi, S.; Alatise, O.; Mawby, P., "Modeling of turn-OFF transient energy in IGBT controlled silicon PiN diodes," IEEE Power Electronics and Applications (EPE'14-ECCE Europe), 2014 16th European Conference on, pp.1-9, 26-28 Aug. 2014.

16- Bonyadi, R.; Alatise, O.; Jahdi, S.; Gonzalez, J.O.; Ran, L.; Mawby, P.A., "Modeling of temperature dependent parasitic gate turn-on in silicon IGBTs," IEEE Power Electronics and ECCE Asia (ICPE-ECCE Asia), 2015 9th International Conference on, pp.560-566, 1-5 June 2015.

17- Alexakis, P.; Alatise, O.; Hu, J.; Jahdi, S.; Gonzalez, J.O.; Ran, L.; Mawby, P.A., "Analysis of power device failure under avalanche mode Conduction," IEEE Power Electronics and ECCE Asia (ICPE-ECCE Asia), 2015 9th International Conference on, pp.1833-1839, 1-5 June 2015.

18- Bonyadi, R.; Alatise, O.; Jahdi, S.; Hu, J.; Evans, L.; Mawby, P.A., "Investigating the reliability of SiC MOSFET body diodes using Fourier series modelling," IEEE Energy Conversion Congress and Exposition (ECCE), pp.443-448, 14-18 Sept. 2014.

19- Jahdi, S.; Alatise, O.; Mawby, P., ''Temperature and dIDS/dt Dependence of the Switching Energy of SiC Schottky Diodes in Clamped Inductive Switching Applications'', Inetrnational Silcion Carbide and Related Materials Conference, ICSCRM 2013, Vols.778,780, pp. 816,819, 2013.

20- H. Chen, P. M. Gammon, V.A. Shah, C.A. Fisher, C. Chan, Jahdi, S., D.P. Hamilton, M. R. Jennings, M. Myronov, D. R. Leadley, P. A. Mawby, "Cryogenic Characterization of Commercial SiC Power MOSFETs", Materials Science Forum, Vols. 821-823, pp. 777-780, 2015.

21- Jahdi, S.; Alatise, O.; Mawby, P., ''The Impact of Silicon Carbide Technology on Grid-connected Distributed Energy Resources", Innovative Smart Grid Technologies Europe (ISGT EUROPE), 2013 4th IEEE/PES, pp.1-5, 6-9 Oct. 2013.

22- Jahdi, S.; Alatise, O.; Mawby, P., ''On the Performance of Voltage Source Converters based on Silicon Carbide Technology", Telecommunications Energy Conference (INTELEC), 2013 IEEE 35th International, pp.1,6, 13-17 Oct. 2013.

23- Jahdi, S.; Lai, L., ''Affects of TCSC usages on Distance protection and Voltage profile of a system", Telecommunications Energy Conference (INTELEC), 2011 IEEE 33rd International, 9-13 Oct. 2011.

24- Jahdi, S.; Lai, L., "DC-DC converters application in fuel-cell stack grid integration," Electrical Power Quality and Utilisation (EPQU), 2011 11th International Conference on, 17-19 Oct. 2011.

25- Jahdi, S.; Lai, L.; Nankoo, D., ''Grid Integration of Wind-Solar Hybrid Renewables Using AC/DC Converters as DG Power Sources", Sustainable Technologies (WCST), 2011 World Congress on, pp.171,177, 7-10 Nov. 2011.

26- Jahdi, S.; Etemadian, A.; Lai, L., ''Voltage profile stability analysis of radial distribution power systems in presence of DGs," Electrical Power Quality and Utilisation (EPQU), 2011 11th International Conference, pp.1,6, 17-19 Oct. 2011.

27- Jahdi, S.; Lai, L., ''DG islanding operation detection methods in combination of harmonics protection schemes," Innovative Smart Grid Technologies (ISGT Europe), 2011 2nd IEEE PES International Conference and Exhibition on, pp.1,8, 5-7 Dec. 2011.

28- Jahdi, S.; Etemadian, A.; Lai, L., ''DG modeling and compensation methods in distribution load flow analysis and voltage profile recovery," Electrical Power Quality and Utilisation (EPQU), 2011 11th International Conference on , pp.1,6, 17-19 Oct. 2011.