Topic: Power Electronics Intensive Solutions for High-Voltage Pulse Generators in PJMIF System
Speaker: ZHUGE Yingjian
Date and time: 15:30–16:30, March 15
Venue: Room 1A200, SIST
Host: WANG Haoyu
Abstract:
Fusion energy is considered an inexhaustible, highly efficient and clean energy source. Plasma-Jet-Driven Magneto-Inertial Fusion (PJMIF) is one of the promising approaches to achieve fusion. Nevertheless, one of the main disadvantages of PJMIF is that it is still in its early stages of development as the newest fusion approach. In this complex system, a high voltage pulse generator plays a crucial role, whether it is used to trigger spark gap switches or to excite plasma jets.
Classic pulse generators, which commonly employ spark gap switches and mechanical switches, lack sufficient power density and compactness. And their pulse repetition frequency is limited. A feasible approach to enhance performance is through the utilization of power electronics. Power semiconductors can operate at much higher repetition rates with low jitter and fast rise time. Additionally, high power density is desirable to meet space constraints.
In this talk, power electronics-based solutions for high-voltage pulse generators will be introduced. Considering load characteristics and design requirements, Linear Transformer Driver (LTD) topology is designed to achieve expected output pulses.
Biography:
ZHUGE Yingjian received the B.S. degree in Electrical Engineering from Zhejiang University in 2021. He is currently pursuing the Ph.D. degree in Electronics Science and Technology in the School of Information Science and Technology at ShanghaiTech University. His research interests include pulsed power technology, and high-voltage pulse generators.