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Electrical Engineering Engineer

Location:
Richardson, Texas, United States
Posted:
February 24, 2018

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Resume:

Education

- University of Texas at Dallas, TX (GPA: 3.8/4) (01/2014-Expected 5/2018)

Ph.D. in Electrical Engineering

- Isfahan University of Technology, Iran (GPA: 17.76/20) (09/2008-02/2011)

M.Sc. in Electrical Engineering

- Azad University, Iran (GPA: 15.40/20) (09/2001- 06/2006)

B.Sc. in Electrical Engineering

Professional Experience

Research Assistant at Power Electronics Lab, University of Texas at Dallas (01/2014- Expected 5/2018)

Ongoing Project:

- Modeling and analysis of torsional and lateral vibrations in induction motor (Sponsored by Schlumberger Company)

. Numerical and analytical modeling of multi-rotor single stator IM applicable in electric submersible pump (ESP);

. A sophisticated mathematical approach to calculate air-gap flux density;

. Eccentricity, torsional and lateral vibrations are modeled using the mathematical technique;

. Based on the analytical and mathematical approach, the harmonic content of stator current under fault conditions

are scrutinized and all tones and harmonics are justified mathematically;

Previous Projects:

- Current Based Fault Diagnosis of PMSMs (Sponsored by Texas Instruments)

- Theoretical and mathematical analysis of faults in PMSMs

. An analytical approach based on partitioned magnetic equivalent circuit (MEC) theory is developed;

. Any fault impact on stator current and back-emf is analyzed mathematically;

. The proposed method is flexible for any motor topology, stator winding configuration and connection;

- Analysis of controller parameter effects on fault diagnosis system

. A mathematical model for PMSMs and field oriented controller is developed;

. The sensitivity of fault related signatures in stator current with respect to the controller coefficient is analyzed;

. To verify the findings experimentally, a new algorithms is developed to measure the amplitude of different

tones in stator current online using the same CPU;

. The algorithm is written in code composer studio V6 and implemented in DSP microcontroller (Piccolo TMS320F28033);

- PMSM Fault Detection Using Flux Gate Sensor(Sponsored by Texas Instruments)

. The effect of various faults on leakage flux around several PM motors is investigated analytically and

experimentally;

. A sophisticated comparison between stator current and leakage flux spectrum is done and it is shown

that the effect of fault on flux waveform is more detectable;

. It is shown that leakage flux spectrum is independent of motor and controller parameters;

. A unique index is introduced for each failure to diagnose the type and severity of fault;

- FOC implementation of PMSM, IPM and IM in continues and discrete mode (Sponsored by Powersim Inc.)

. Three types of motors including PMSM, IPM and IM are simulated in PSIM software and field oriented

control (FOC) strategy is applied to control speed and torque;

. Each motor is simulated in four conditions including continues, discontinues, sensored and sensorless;

- FOC implementation of PMSM using PSIM simcoder(Sponsored by Powersim Inc.)

. A PMSM motor with field oriented control strategy is simulated in PSIM simcoder and the C code is

generated;

. The generated code is tested experimentally;

- MTPA implementation of an IPM in Matlab/Simulink and DSP

. An IPM motor is simulated in Matlab/Simulink and the maximum torque per ampere control strategy is

applied;

. Space vector modulation strategy is used for to control input voltage;

Electrical Engineer at P. Niro Inc. (04/2011- 07/2013)

- Design and Analysis of Permanent Magnet Synchronous Machines

. Design and manufacture a 1kw PMSM motor with low torque ripple and high speed;

. Implement an inverter for the designed motor using ARM microcontroller;

. Design the PCB for the whole control part;

- Design and Manufacture a DC motor drive

. Design all elements base on the rated voltage and current such as DC link capacitor and switches for both

stator and rotor excitations;

. Design the PCB for the whole control part;

Teaching Assistant at Isfahan University of Technology (09/2008- 01/2011)

- Design and Manufacturing of Transverse Flux Permanent Magnet Machine (MSc thesis)

. An analytical magneto-static model for a transverse flux PM machines based on magnetic equivalent

circuit is developed;

. This method is useful for design and analysis of any salient motor;

. A prototype of a transverse flux PM machine is manufactured and tested;

Lecturer at Azad University for Electric Machine courses (Spring 2011)

- Electronic Laboratory;

- Circuit Analysis Laboratory;

Research Interest

- Power Electronics, Digital Power Control and Management;

- Design and Control of Electric Motors & Drives;

- Electric & Hybrid Electric Vehicle Applications;

- Fault Diagnosis & Condition Monitoring of Industrial Components and Energy Conversion Units;

- DSP Based Energy Conversion Systems, Power Electronics and Industry Applications;

- Applications of Modern Control Theory and Signal Processing to Energy Systems and Industrial Processes

Renewable and Smart Energy Systems;

Computer Skills

- Engineering Software: MATLAB/Simulink, MAXWELL3D&2D and RMxprt; Simplorer, Altium Designer;

- Programming languages: MATLAB program language, Code composer studio;

- General Software: Word, Excel, PowerPoint, Visio;

Graduate Courses

- Adjustable Speed Motor Control

- Comprehensive Theory of Electric Machines

- Vector Control of AC Electric Machines

- Power Electronic

- Power System Dynamics

- Power System Analysis

- Reactive Power Control

- Linear System Control

Honors

- Louis Beecherl, Jr. Graduate Fellowship (2017)

- Best Paper Pres. Award, IEEE APEC 2015

- 2016 APEC Student Travel Support

Publications

Journal Publications

- M. Zafarani, T. Goktas and B. Akin, "A Comprehensive Magnet Defect Fault Analysis of Permanent-Magnet Synchronous Motors," in IEEE Transactions on Industry Applications, vol. 52, no. 2, pp. 1331-1339, March-April 2016.

- M. Zafarani, T. Goktas, B. Akin and S. E. Fedigan, "An Investigation of Motor Topology Impacts on Magnet Defect Fault Signatures," in IEEE Transactions on Industrial Electronics, vol. 64, no. 1, pp. 32-42, Jan. 2017.

- M. Zafarani, T. Goktas, B. Akin and S. E. Fedigan, "Modeling and Dynamic Behavior Analysis of Magnet Defect Signatures in Permanent Magnet Synchronous Motors," in IEEE Transactions on Industry Applications, vol. 52, no. 5, pp. 3753-3762, Sept.-Oct. 2016.

- T. Goktas, M. Zafarani and B. Akin, "Discernment of Broken Magnet and Static Eccentricity Faults in Permanent Magnet Synchronous Motors," in IEEE Transactions on Energy Conversion, vol. 31, no. 2, pp. 578-587, June 2016.

- Y. Qi, M. Zafarani, B. Akin and S. E. Fedigan, "Analysis and Detection of Inter-Turn Short-Circuit Fault Through Extended Self-Commissioning," in IEEE Transactions on Industry Applications, vol. 53, no. 3, pp. 2730-2739, May-June 2017.

- T. Goktas, M. Zafarani, K. W. Lee, B. Akin and T. Sculley, "Comprehensive Analysis of Magnet Defect Fault Monitoring Through Leakage Flux," in IEEE Transactions on Magnetics, vol. 53, no. 4, pp. 1-10, April 2017.

- M. Peyvandi, M. Zafarani, E. Nasr, “Comparison of Particle Swarm Optimization and Genetic Algorithm in the Improvement of Power System Stability by a SSSC-based Controller”, Journal of Electrical Engineering & Technology Vol. 6, No. 2, pp. 182-191, 2011.

Conference Publications

- M. Zafarani and B. Akin, "Comparison of real time motor fault signature analysis algorithms for drive embedded systems," 2017 IEEE International Electric Machines and Drives Conference (IEMDC), Miami, FL, 2017, pp. 1-7.

- Y. Qi, M. Zafarani and B. Akin, "A diagnosis procedure in standstill mode for inter turn short circuit faults of PMSMs through modified self-commissioning," 2016 IEEE Energy Conversion Congress and Exposition (ECCE), Milwaukee, WI, 2016, pp. 1-7.

- T. Goktas, K. W. Lee, M. Zafarani and B. Akin, "Analysis of magnet defect faults in permanent magnet synchronous motors through fluxgate sensors," 2016 IEEE Applied Power Electronics Conference and Exposition (APEC), Long Beach, CA, 2016, pp. 2875-2880.

- M. Zafarani, T. Goktas and B. Akin, "A comprehensive assessment of PM motor topology impact on magnet defect fault signatures," 2016 IEEE Applied Power Electronics Conference and Exposition (APEC), Long Beach, CA, 2016, pp. 1096-1101 (Student Travel Support Award).

- M. Zafarani, T. Goktas and B. Akin, "A comprehensive analysis of magnet defect faults in permanent magnet synchronous motors," 2015 IEEE Applied Power Electronics Conference and Exposition (APEC), Charlotte, NC, 2015, pp. 2779-2783 (Best Paper Presentation Awarded).

- T. Goktas, M. Arkan, M. Zafarani and B. Akin, "Separation harmonics for detecting broken bar fault in case of load torque oscillation," 2015 IEEE International Electric Machines & Drives Conference (IEMDC), Coeur d'Alene, ID, 2015, pp. 1452-1458.

- M. Zafarani, T. Goktas and B. Akin, "A simplified numerical approach to analyze magnet defects in permanent magnet synchronous motors," 2015 IEEE Energy Conversion Congress and Exposition (ECCE), Montreal, QC, 2015, pp. 6117-6121.

- T. Goktas, M. Zafarani and B. Akin, "Separation of broken magnet and static eccentricity failures in PMSM," 2015 IEEE International Electric Machines & Drives Conference (IEMDC), Coeur d'Alene, ID, 2015, pp. 1459-1465.

- M. Zafarani, T. Goktas and B. Akin, "A simplified mathematical approach to model and analyze magnet defects fault signatures in permanent magnet synchronous motors," 2015 IEEE Industry Applications Society Annual Meeting, Addison, TX, 2015, pp. 1-6.

- M. Zafarani, M. Moallem and A. Tabesh, "Analytical Model for a Transverse Flux Permanent Magnet Machine Using Improved Magnetic Equivalent Circuit Approach," 2011 21st International Conference on Systems Engineering, Las Vegas, NV, 2011, pp. 96-99.



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