The Department of Electrical Engineering at the École de Technologie Supérieure and the Power Electronics Society (PELS) chapter in collaboration with the Industrial Electronics Society (IES), Industry Applications Society (IAS), and Power & Energy Society (PES) chapters in the IEEE Montreal Section cordially invites you to a seminar presented by Dr. Akshay Kumar Rathore, Associate Professor, Electrical and Computer Engineering, Concordia University, Montreal, QC, Canada.

Please register using the link provided below.

Seminar Abstract

Bidirectional dc/dc converters are required for energy storage and dc microgrid applications. Current-fed converters offer inherent voltage gain, short circuit protection and current limiting features, and are suitable for such applications. However traditional drawback of voltage spike at turn-off across the semiconductor devices has limited the use the current-fed topologies. Conventionally, dissipative/passive snubbers or active-clamping circuits have been adopted to address this problem. However, such circuits introduce complexity, reduce efficiency, and compromise on original boost capacity of the converters. Low peak and circulating current through the devices are limited than conventional current-fed and voltage-fed PWM and resonant converters. It, therefore, delivers higher efficiency. Snubberless Naturally Clamped Current-fed Converters refer to a new class of converters with a newly developed modulation scheme that solves this traditional problem without any additional snubber or auxiliary clamp circuit while preserving the boost capacity and circuit originality. This newly invented modulation technique has been implemented on single-phase, three-phase, and interleaved topologies and demonstrated the attributes of natural voltage clamping and zero current commutation of semiconductor devices along with soft-switching. This class of converters will open scope for current-fed converters in industries. It is a fixed frequency duty cycle modulation and only a series inductance value between source and load needs to be designed.

Speaker(s): Dr. Akshay Kumar Rathore,

Location:
Room: A-1302
Bldg: A
1100 Notre-Dame St West
Montreal, Quebec
H3C 1K3