Dr. Mehdi Narimani

Principal Investigator
Dr. Mehdi Narimani received his Ph.D. degree in electrical engineering from the University of Western Ontario, London, ON, Canada, in 2012. He is currently an Assistant Professor with the Department of Electrical and Computer Engineering, and Associate Professor with the Department of Mechanical Engineering at McMaster University, Hamilton, ON, Canada. Prior to joining McMaster University, he was a Power Electronics Engineer with Rockwell Automation Canada, Cambridge, ON, Canada. He has authored/co-authored more than 100 journal and conference proceeding papers, co-authored a Wiley-IEEE Press book, and holds more than eight issued/pending US/European patents. He is the Associate Editor of IEEE Transactions on Vehicular Technology.

Current Researchers

Dr. Negar Noroozi

Post-Doctroal Research Fellow

Dr. Negar Noroozi received her B.S. degree from University of Tehran (2007), and her M.S. and Ph.D. degrees from Sharif University of Technology, Tehran, Iran (2010 and 2018), all in electrical engineering. The main research area of her graduate studies were power electronics, power converters and renewable energies. In 2019, she joined McMaster University as a postdoctoral fellow, with focus on DC/DC and DC/AC converters. She is currently working on power converters in the motor control application.

Research Topic: Power electronics drivers for high-speed PM BLDC and SRM motors for ventilators.
One of the essential requirements of a ventilator is the precise control of the motor/fan to push the air adequately into the lungs of a patient. This research project develops two motor driver cards including power electronics converter to control high-speed motors and adjust the pressure in ventilation.

Dr. Ahmed S. Abdelrahman

Post-Doctroal Research Fellow

Dr. Ahmed S. Abdelrahman received his Ph.D. degree in electrical engineering from the University of Ontario Institute of Technology in 2019. He is currently working as a Postdoctoral Research Fellow at McMaster Automotive Resource Centre (MARC), McMaster University with the electric machine design research thrust area (EM-RTA) team in collaboration with Fiat-Chrysler Automobiles (FCA), for the development of next-generation hybrid-electric drivetrains for vehicles. .

Research Topic: Multi-physics Design of a Dual-Three Phase Interior Permananet Magnet (IPM) Motor for Propulsion Applications. This research aims to address the multi-physics nature of the design process of high power density IPMs for traction applications.

Zhituo Ni

PhD Student

Zhituo Ni received M.Sc. degree from Nanjing University of Aeronautics and Astronautics (China) in Electrical Engineering and Ontario Tech University (Canada) in Automotive Engineering in 2015 and 2017 respectively. He works toward the Ph.D. degree at the Department of Electrical and Computer Engineering, McMaster University, Hamilton, ON, Canada from Sept. 2017. He has been working in collaboration with R&D Rockwell Automation Canada.

Research Topic: Regenerative Medium Voltage CHB Motor Drives. Zhituo has been working on the design and control of the regenerative CHB drives with a higher efficiency and lower cost.

Ali Ramezani

PhD Student

Ali Ramezani received the B.Sc. degree in electrical engineering from Shahid Beheshti University, Tehran, Iran, in 2014 and the M.Sc. degree in electrical engineering from the University of Tehran, Tehran, Iran, in 2017. He is currently a Ph.D. candidate at the Department of Electrical and Computer Engineering, McMaster University, Hamilton, ON, Canada. His research interests include wireless power transfer, design and control of the automotive high-power converters, magnetic design, and renewable energy sources.

Research Topic: Wireless Power Transfer for EV Battery Charging Application. The goal of this research is to achieve an efficiency high power wireless charger. In this research, the wireless charging system is optimally designed to maximize the efficiency of the system. Moreover, by proposing new magnetic structures and novel topologies the implementation cost and converter size are reduced significantly.

Ahmed H. Abuelnaga

PhD Student

Ahmed H. Abuelnaga received the B.Sc. (Hons.) and M.Sc. degrees from Ain Shams University, Cairo, Egypt in 2012 and 2017, respectively. He is currently working toward the Ph.D. degree at the Department of Electrical and Computer Engineering, McMaster University. Since 2018, he has been working as a researcher in HiPEL, In addition, he has been working in collaboration with R&D Rockwell Automation Canada. His research interests include motor drives, EV fast chargers, embedded control, reliability and predictive maintenance.

Research Topic: (1) Next Generation Medium Voltage Drives; innovative solutions to address drives reliability, performance, architecture and extend its capabilities to new application areas. (2) EV Fast DC Charging Stations; develop new station-level and charging pole designs considering requirements such as high power, wide voltage range, high efficiency, and scalability.

Sarah Badawi

PhD Student

Sarah Badawi has been a HiPEL research member since Sept. 2018. She is currently working toward her PhD degree in the field of Power Electronics at the department of Electrical and Computer Engineering, McMaster University, Canada. She received her B.Sc. (Hons.) from Ain Shams University, Cairo, Egypt in 2016. Since Sept 2018, she has been working in collaboration with the R&D in Rockwell Automation (Cambridge, ON, Canada) to develop new generations of motor drives.

Research Topic: Motor Drives, Grid-Connected Systems, High-Power Multilevel Inverters, and Control Schemes. Developing next generation medium voltage drives using innovative solutions to address converter footprint, performance, and regenerative capability, and developing new power cell designs using cutting age electronic components and cooling technologies.

Ahoora Bahrami

PhD Student

Ahoora Bahrami Received the B.Sc. degree in electrical engineering from Sharif University of Technology, Tehran, Iran, in 2016. Currently, he is pursuing the Ph.D. degree in electrical engineering with a focus on power-electronics with the department of Electrical and Computer Engineering, McMaster University. His research interests include medium-voltage high-power converters, inverter design for automotive applications, and EV extreme fast charging.

Research Topic: Advanced Medium-voltage multilevel high power converters in EV extreme fast charging. Proposing new advanced multilevel topologies that are advantageous in terms of cost, and control complexity in comparison to other existing multilevel topologies is the focus of this research project.

Ahmed Salem

PhD Student

Ahmed Salem received the B.Sc. and M.Sc. degrees in Electrical Engineering from Alexandria University, Alexandria, Egypt, in 2014 and 2018. He is currently a Ph.D. student at McMaster University since May 2018. He is a member of HiPEL and a member also of the Center for Mechatronics and Hybrid Technology (CMHT) team. He is associated with the EECOMOBILITY CREATE/ORF project working on the E-Motor side. His research interests include power electronics and electric drives in electrified transportation applications.

Research topic: Advanced Multiphase Drives for EV applications, the goal is to research and develop a compact and efficient multiphase drive (asymmetrical six-phase) for EV applications. The research points are focused on exploiting the features of multiphase drives such as less power per phase, lower dc-link current ripples, fault-tolerant operation and torque density improvement via harmonic current injection.

Kamal Zarei

PhD Student

Kamal Zarei received his B.Sc. degree in electrical engineering from University of Tabriz, Iran in 2013 and his M.Sc. degree on power electronics and electrical machine drives at University of Tehran, Iran in 2017. He joined McMaster University in 2018 as a PhD student.

Research topic: Design and Thermal Management of Reduced Switch-Count CHB Cell. The goal of this research is thermal management and designing reduced switch-count converters for medium voltage motor drives.

Amirreza Porfakhraei

PhD Student

Amirreza Porfakhraei received his bachelor’s and master’s degrees in electrical engineering from Sharif University of Technology, Tehran, Iran in 2014 and 2016, respectively. During his studies, he gained experience in implementing low-power, high-frequency power electronic converters. He joined McMaster University in September 2019 as a Ph.D. student under co-supervision of Dr. Narimani and Dr. Emadi. His main research interests include motor drives, wireless power transfer, DC/DC, and DC/AC converters. Other than pursuing his Ph.D. studies, he writes short stories and plans to publish a collection of them in future.

Research Topic: Multilevel Inverters in Electric Vehicles’ Drive System; With the recent trend in increasing battery voltages in EVs, multilevel inverters can be considered as a promising replacement to the conventional two-level structures. Higher efficiency, lower output current THD, and lower EMI are among the benefits of utilizing these structures in the EV drive system.

Mohamed Ibrahim

PhD Student

Mohamed Ibrahimi received his B.S. degree in Electrical Engineering from Ain Shams University, Cairo, Egypt in 2018. In January 2019, he continued on to pursue his Master of Science degree in electrical and computer engineering with McMaster University focusing on power electronics converters. At the beginning of his studies at McMaster University, he joined the McMaster Automotive Research Center (MARC) research group where he worked on developing power-dense power electronics converters for aerospace applications. Mohamed is currently pursuing the Ph.D. degree with McMaster University, focusing on development of power electronics DC-DC converters.

Research topic: High power density bidirectional isolated DC-DC converters for aerospace applications, The key figures of modernized aircraft electrical power networks are the weight and size reduction as well as the system efficiency. Mohamed’s work is focused on developing efficient power-dense isolated DC-DC converters that links between the HVDC bus to the LV network on the more electric and all electric aircrafts.

Alireza Lorestani

PhD Student

Alireza Lorestani received his M.Sc. degree in power system engineering from Amirkabir University of Technology (AUT), Tehran, Iran in 2017. As of January 2019, he joined Integrated Community Energy and Harvesting Systems (ICE-Harvest) research Lab, McMaster University, where he is pursuing a Ph.D. degree in Mechanical Engineering.

Research topic: Predictive control strategy for on-line optimal operation of ICE-Harvest System, the objective of his research is to develop a software that optimizes the real-time operation of the ICE-Harvesting system. This software is a predictive optimization framework that determines the real-time setpoints for the converters, actuators, etc. in the downstream at every discrete time step, such as every 5 minutes.

Alireza Barmaki

PhD Student

Alireza Barmaki received his Bachelor’s degree in Electrical Engineering from ECE Department, University of Tehran, Iran in 2016. He received M.S. degree in Power Electronic engineering from Sharif University of Technology where he worked as Research Assistant in Electric Drives and Power Electronics Laboratory (EDPEL) from 2016 to 2018. Currently, he is a Ph.D. student at McMaster University and his main research interest is in Visible Light Communication (VLC) and its integration into Power Converters.

Research topic: VLC Integration into Power Converters, today’s growing demand for wireless communication has given rise to VLC (Visible Light Communication) which necessitates the existence of proper power converters (LED Drivers) to provide the system with good illumination and data transmission rate. Design and implementation of an efficient driver capable of producing modulated current to drive the luminaires is of great importance.

Ahmed Elezab

PhD Student

Ahmed Elezab received his bachelor’s degree (B.S.) in Mechatronics Engineering from Ain Shams University, Cairo, Egypt, in 2019. During his undergrad he participated in Shell eco marathon competition for EVs as an electric powertrain member. He joined HiPEL Research group in May 2020. He is currently pursuing a PhD at McMaster university. His research focuses on developing ultra-fast battery chargers for electrified vehicles and he is involved in the development of multi-level high power industrial grade motor drive systems.

Research topic: Ultra-fast battery chargers for Electric Vehicles, the research aim is to develop Ultra-Fast charger. Ultra-Fast chargers is the 3rd generation of battery electric vehicles chargers. It consists of a front-end AC-DC converter for active power factor correction (PFC) and a DC-DC converter to regulate the output voltage and current.

Omar Zayed

PhD Student

Omar Zayed received his B.Sc. in Mechatronics Engineering from Ain Shams University, Egypt in 2019. In 2017, During his undergrad-studies he focused on powertrain systems design for EVs as a Powertrain Team leader, instructor & member for the ASU Racing Team participating in SEM-Urban Competition. In 2020 Omar joined the McMaster Automotive Resource Center (MARC) & McMaster High Power Electronics Research Lab (HiPEL) as an Electrical Engineering M.Sc. student working on industrial research projects, Omar is under the supervision of Dr. Mehdi Narimani and Dr. Berker Bilgin. His current research area includes motor drives, ultra-fast battery chargers & EV systems.

Research Topic High power ultra-fast chargers, this research is to develop ultra-fast battery charging technologies for EVs, while also working on the development of multi-level high power industrial grade motor drive systems.

Hossein Saeedifard

Research Engineer

Hossein Saeedifard received his Master’s degree in electrical engineering from Ryerson University, Canada, in 2020. His research interests are design, control and development of power electronics circuits and high-frequency power conversion based on Wide-Band-Gap switching devices circuits.

Research Topic Hardware design and prototyping of power converter system, the goal is to develop and design of gate drivers for Wide-Band-Gap power switches, with a specific focus on SiC MOSFETs, which will be the power switches used in the targeted power converter. Also, designing the converter controller board based on DSP and FPGA is another aspect of this research.

Shaoyi (Soy) Yuan

Research Assistant

Shaoyi (Soy) Yuan received his B.Eng. degree in control engineering from Northeastern University in China, 2018. He is currently pursuing his M.A.Sc. degree in High Power Electronics Lab (HiPEL) at McMaster University, as a group member of “Next-Generation Power Cell” Project. His present fields of research include medium-voltage grid-tied power converters, sensor implementation, capacitor selection and optimization for power electronics.

Research Topic lifetime estimation of power capacitors and ripple current reduction technique for regenerative CHB motor drives. Basing on a medium-voltage regenerative CHB motor drive, analyzing the reliability performance of dc-link power capacitors, introducing lifetime calculators for capacitor candidates under electrolytic and film categories, and proposing a ripple current suppression method to improve capacitor reliability.

Hassan Aleian

MASc Student

Hassan Aleian received his B.Eng. in Electrical Engineering from McMaster University, Canada. He presently pursues his M.A.Sc.. degree at McMaster University. Alongside his Masters, as a member of a team, Hassan has worked on a Fiat-Chrysler sponsored industry project developing a high-power density DC/AC Traction Inverter.

Research Topic Due to the advent of Electrified Vehicles and their stringent requirements, it has become imperative to improve power density in traction inverters accelerating the world`s transition into environmentally sustainable transportation. In turn, electric current demands continue soaring and semiconductor chip sizes continually decrease. A bottleneck to this trend is the effective cooling of semiconductor devices in converters. Tackling this obstacle Hassan focuses his research on the thermal management and design of liquid cooling for inverters.

Joshua Fitzpatrick

MASc Student

Joshua Fitzpatrick graduated from McMaster University in 2019 with Bachelor’s Degree in electrical engineering. He worked as an Equipment Reliability Coordinator at ArcelorMittal Dofasco on internship during his undergraduate studies. He began his Master’s soon after graduating working with integrated energy systems. Through his research he aims to make an impact on moving towards a greener, more sustainable world.

Research Topic: Control of Integrated Energy Systems using Multi-Agent Systems, design and implementation of a Multi-Agent Control system for an integrated thermal and electrical energy system. This system will coordinate the production of energy with the needs of the community in a way that minimizes environmental impact and contributes to a cleaner energy infrastructure.

Alex Wang

MASc Student

Alex Wang graduated from Electrical and Computer Engineering program at McMaster University, Hamilton, ON, Canada in year 2019. Currently an Electrical Engineering Master of Science student at McMaster University, Hamilton, ON, Canada.

Research Topic: Multi Level Inverter for Traction Application, investigating the power loss, control, busbar design and gate driver design for multi-level traction inverters. .

Doho Kang

MASc Student

Doho Kang received his Bachelor’s of Engineering degree in Electrical and Computer Engineering from McMaster University, Hamilton, ON, Canada, in 2019. He is currently pursuing a Master’s of Applied Science degree in Electrical Engineering specializing in Power Engineering from McMaster University, Hamilton, ON, Canada. During his undergraduate studies, Doho worked as a Lab Testing Assistant at Rockwell Automation Canada, Cambridge, ON, Canada.

Research Topic: Advanced multi-level inverter design for medium-voltage motor drives

Past Researchers

Dr. Apparao Dekka

Dr. Apparao Dekka

Research Associate
Mehdi Alimardani

Mehdi Alimardani

MASc
Shaoyi (Soy) Yuan

Shaoyi (Soy) Yuan

MASc
Dr. Saeed Ouni

Dr. Saeed Ouni

Post-Doctoral Fellow
Warren Pawlikowski

Warren Pawlikowski

MASc
Dr. Karthik Kandasamy

Dr. Karthik Kandasamy

Post-Doctoral Fellow
Guo Chen

Guo Chen

M.Eng
Dr. Mohammad Esmalifalak

Dr. Mohammad Esmalifalak

Post-Doctoral Fellow
Joshua Taylor

Joshua Taylor

MASc
Dr. Jorge Chebeir

Dr. Jorge Chebeir

Post-Doctoral Fellow
Negin Piran

Negin Piran

MASc
Dr. Marjan Alavi

Dr. Marjan Alavi

Research Assistant
Sarah Badawi

Sarah Badawi

MASc