Academic and Professional Background[edit | edit source]
My name is Shahrzad Jahangiri and I am a prospective PHD applicant. I hold a Master's degree in Electrical Engineering from Islamic Azad University (IAU) of Isfahan (Khorasgan) Branch in 2016. https://isfahan.iau.ir/Page-NewMain/fa/1 .Completed Bachelor's program in Electrical Engineering in Islamic Azad University (IAU) of Mahshahr Branch in 2013. https://mahshahr.iau.ir/fa
I am an electrical engineer with specialize in Power electronics with in-depth knowledge about soft switching techniques as well as hands-on experience in a designs and development of the power electronics, analog and digital circuits. Strong background in the circuit simulation software (PSpice, PSIM, and Matlab), modeling and prototyping of power supplies and developing high efficiency, high power density converters.
Thesis Research Topic[edit | edit source]
New Single-Switch Soft-Switching Forward Flyback DC-DC Converter with Pulse-Width Modulation Control under the supervision of Dr. m. Delshad.
In this dissertation, an auxiliary circuit has been added to the flyback-forward converter to provide soft switching conditions for the only circuit switch to reduce switching losses and increase the frequency which has an advantage over other PWM converters with soft switching due to having an active switch and not having an auxiliary switch, as well as no need for additional drive circuits and more complex control. Also, because the control of the switch remains PWM, it is preferable to resonant converters and since energy transfer to the output occurs both when the switch is on and off, its power density increase which helps to reduce the size of the proposed converter. Additionally, it does not require a reset core of the transformer, which also reduces the number of circuit elements.
Research[edit | edit source]
Research Interests[edit | edit source]
My research focuses on Power electronics, Soft-Switching, High-Frequency Power Conversion, Renewable & Sustainable Energy Conversion Systems, Solar Energy Systems - Solar Thermal Solar Cells, Energy productivity and applied sustainability, which is the application of science and innovation to ensure a better quality of life now and into the future, Specifically I am interested in exploring the way renewable energy and solar energy can be used to provide clean sustainable electricity through photovoltaic devices.
Research Activities, Tools used & Skills[edit | edit source]
power electronics research areas:[edit | edit source]
- zero current transition PWM DC/DC converters without current stress
- zero-current transition PWM converter
- SEPIC converter with soft-switching feature for power factor correction
- Analysis and design of a Soft Switched PWM SEPIC DC-DC Converter
- Bidirectional DC -DC converters and soft switching DC-DC converters.
- soft switching techniques in DC -DC converters and current - fed converters.
- High step-up zero-voltage switching current-fed isolated pulse width modulation DC–DC converter
- Power Electronics, High-Power Conversion
- Application of Power Electronics in Power Systems
- Modeling and Control of Power Electronic Converters
Renewable energy research areas that I have a basic familiarity with:
- Power Electronics for applications related to renewable energies (photovoltaic converters, energy storage);
- Motorization and charging of electric vehicles
- High Voltage Power Electronics for electrical energy transport and distribution applications
- The Electrical Grid for sustainable energy generation
- Sustainable energy systems
- Energy Systems Modelling
- Green (Renewable) Energy Technology
- Renewable Energy Systems
projects
underground projects:
- programmed a touchscreen using an AVR microcontroller.
- Logical analog calculator of register
- Behavior of a linear control system using MATLAB programming
- Draw multi-vibrator circuit using Proteus program
- Research on robot sensors firefighter
- Quality of Service Routing Algorithm, Design and Implementation of a DNS Server
- Design and implementation of a digital oscilloscope using AVR
- Design and implementation of a class AB power linear amplifier using CMOS transistors
- Designed and simulated “Different noise cancelation techniques “and “Adaptive Notch filter design for noise for audio signals using MATLAB
graduate projects:[edit | edit source]
- Design and implementation methodology for high performance noise-tolerance XOR-XNOR
- Design a power converter for photovoltaic application
- Design a single-switch ZCS fly back-forward converter with circuits simulation software like Pspice, PSIM and Matlab
- Experience in the design of power electronic DC-AC and/or DC-DC converters
- modeling of electronic circuits in PSIM and MATLAB software
- design of control systems and their implementation in microcontrollers and DSPs
- research about power semiconductor components and their driving
work projects:[edit | edit source]
- Design and implement control reliable safety systems for safeguarding robots
- Review contractor’s design and ensures compliance with the technical requirements of the contract
- Monitor contractor(s) performance, evaluate potential changes, and advise on their significance
- Designing and specifying PLC/SCADA and distributed control systems
- Experience with mixed-signal PCB design (preferably using Altium Designer)
current projects:[edit | edit source]
- Design and implementation of transformer
- Design and implement photocells
- designs and development of the power electronics, analog and digital circuits.
- circuit simulation software (PSpice, PSIM, and Matlab)
- modeling and prototyping of power supplies and developing high efficiency, high power density converter
campus and industry involvement[edit | edit source]
- working as a translators of electrical standards by (ISIRI)
- collaborating with power electronic department of national Iranian oil company since my proposed converter was chose as a Top industrial design for DC-DC converter at the national Iranian oil company
- working with national electrical conference at 4th national conference on new ideas in electrical engineering
- working as a member of the University robotics Group (robot firefighter)
- I have been working as an assistant lab during my bachelor degree.
- I have been working with professor M. Delshad power research group as a member during my master degree from 2014 and 2016
Publications[edit | edit source]
PEER-REVIEWED PUBLICATIONS
Journal articles
S. Jahangiri, M. Delshad, and M. Vesali, “A New Single-Switch ZCS Flyback-Forward Converter with High Power Density”, IETE Journal of Research, pp. 1-11. May 2020. https://doi.org/10.1080/03772063.2020.1768160
Dissertation
New Single-Switch Soft-Switching Forward Flyback DC-DC Converter with Pulse-Width Modulation Control
conference proceeding
S. Jahangiri, M. Delshad, ”A new buck-boost converter without any auxiliary switch”
جهانگیری، شهرزاد و دلشاد، مجید،1394،مبدل باک-بوست جدید بدون سوییچ کمکی،چهارمین کنفرانس ملی ا یده های نو در مهندسی برق،اصفهان، https://civilica.com/doc/533766