Electrical Control

MD NAYEEM ARAFAT

PhD Student, Department of Electrical & Computer Engineering, The University of Akron.

Email: ****@****.******.*** Mobile: 330-***-****

Experienced in Grid tied Inverter Design, Grid Tied Battery Charger Design, Fully and Half controlled three phase rectifier, Power Electronics, Schematics & PCB Layout, Microcontrollers & Embedded Software

SUMMARY OF QUALIFICATIONS

2+ years of experience in design, simulation and hardware implementation of Grid tied Inverter (DC/AC) for weak grid – a new control algorithm is developed for transition between standalone and grid connected mode and also a new predictive current control algorithm in grid connected mode is develop that can compensate the delay effect and harmonics effect.

2+ years of experience in Power Electronics, modeling and control of Renewable Energy Systems.

Experienced in Grid tied battery charging system special AC-DC boost charger (20KW system)for HEV

3+ years of experience in PCB Layout for Power and Signal Circuits, Power Flow and Fault Analysis.

Experienced in PIC24 and Analog device ADSP-BF506 Microcontrollers & Embedded System.

TECHNICAL SKILLS

Software: MATLAB/SIMULINK, ORCAD Capture/SCHEMATIC and PCB Layout Plus, PSpice, LABVIEW, MATHCAD.

Languages: C, C++, Embedded C.

Embedded Controllers: PIC24, Analog Device ADSP- BF506 Microcontroller, MPLAB IDE.

Equipments: Power analyzer, Oscilloscope and general lab equipments.

PUBLICATIONS

Md Nayeem Arafat, Sreeshailam Palle, Yilmaz Sozer and Iqbal Husain, “Transition Control Strategy between Standalone and Grid Connected Operation of Voltage Source Inverters,” ECCE 2011 conference, Sep. 2011, pp. 1002–1016.

Md Nayeem Arafat, Mehnaz Akhter Khan, Yilmaz Sozer and Iqbal Husain, “Vehicle-to-Grid Power Electronics System for Local Power Management,” UECEAO, 26-27 April, 2011.

Md Nayeem Arafat, Sreeshailam Palle, Yilmaz Sozer and Iqbal Husain, “Predictive Current Control for Utility Interactive Renewable Energy Systems in the Face of Weak Utility Grids,” ICDRET 2012, pp. 301-305, Jan.2012.

Md Nayeem Arafat, Sreeshailam Palle, Yilmaz Sozer and Iqbal Husain, “Voltage harmonic correction of polluted single phase utility grid,” submitted in ECCE 2012 conference.

Md Nayeem Arafat, Sreeshailam Palle, Yilmaz Sozer and Iqbal Husain, “Experimental and simulation – a new transition Control Strategy between Standalone and Grid Connected Operation of Voltage Source Inverters,” submitted in IEEE transaction.

PROFESSIONAL EXPERIENCE

RESEARCH ASSISTANT January 2010 – Present University of Akron Akron, Ohio Department of Electrical & Computer Engineering

Reviewer in ECCE2012 conference.

• Design, simulation and hardware implementation of the Grid connected Inverter in standalone (SA) and grid connected (GC) mode and the transition between two modes.

- Developed a new predictive current control algorithm in grid connected mode

- A new transition algorithm from SA to GC and GC to SA Using Analog device ADSP BF506 microcontroller

-Designed a four layer PCB for a 20KW inverter with current and voltage sensing and fault protection circuit using Schematic Capture and Layout Plus.

-Synchronization between the Utility Grid and the inverter is achieved and power flow controlled bi-directionally (charging/discharging)

• Design and hardware implementation of a Battery charger (20 kW AC-DC boost charger) for Hybrid Electric Vehicle charging station using 3 phase inverter.

- Developed a new current control algorithm for the charging system of the vehicle.

• Developed and Implemented a Volt/Hz controller for a 3-Phase Induction Motor

-Developed a control algorithm using Microchip dsPICDEM MCHV Development Board -Different phase voltages, line voltages and phase currents for variable resistive loads were analyzed -Dead band effects, transient effects of the Induction Machine were analyzed.

• Design and hardware implementation of the harmonic cancellation of the weak grid.

-Using the recursive method to find out the phase and the magnitude of the harmonics in the dq-axis and the opposite high frequencies is injected in the grid to make the grid voltage sinusoidal.

• Design and hard ware implementation of a 50 W buck converter using 3524 IC (voltage control feedback to vary the PWM signal of the MOSFET switch.

EDUCATION

•Master of Science in Electrical Engineering, BUET, Bangladesh. GPA: 3.84 out of 4.0

•Bachelor of Science in Electrical Engineering, BUET, Bangladesh. GPA: 3.61 out of 4.0

• PhD in Electrical Engineering, The University of Akron,USA.(Continue) GPA: 3.67 out of 4.0

RELEVANT COURSES

Power Electronics, Modeling & Controlling of Renewable Energy System, Electric Motor Drives, System Simulation, Sensors & Actuators, VLSI Design, Dynamics of Power electronics, Dynamics of electrical machines, Control system theory, Optimal control.

REFERENCES

• Dr. Yilmaz Sozer

Assistant Professor, Department of Electrical & Computer Engineering,

The University of Akron, Akron, Ohio 44325 Mobile no: 518-***-****

Email: **@******.***

• Dr. Iqbal Husain

Professor, Department of Electrical & Electronics Engineering, North Carolina State University, North Carolina Email: *****@******.***

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