报告题目：A Deep Fusion of Power Electronics and Kinetic Energy Harvesters Toward Motion-powered IoT Systems
报 告 人：梁俊睿（上海科技大学副教授）
报告时间：2025年7月8日（星期二）上午10:30—11:30
报告地点：广州国际校区D1b-110会议室
主办单位：吴贤铭智能工程学院
报告人介绍：
Dr. Junrui Liang is an Associate Professor in the School of Information Science and Technology at ShanghaiTech University, Shanghai, China. He received the Ph.D. degree in Mechanical and Automation Engineering from the Chinese University of Hong Kong, Hong Kong, China, in 2010. Dr. Liang has an interdisciplinary research and working experience in smart materials and structures, power electronics, and Internet of Things (IoT) systems and applications. As of May 2025, Dr. Liang has authored and co-authored more than 180 peer-reviewed technical papers in international journals and conferences. He is ranked among world’s top 2% scientists in the lists released by Stanford University and Elsevier. Dr. Liang has served as an Associate Editor for IEEE Transactions on Circuits and Systems II: Express Briefs and IEEE CASS Newsletters, etc. He is currently the Chair of Energy Harvesting Technical Committee (EHTC) in ASME Smart Materials, Adaptive Structures, and Intelligent Systems (SMASIS) Division, and the Chair-Elect of Power and Energy Circuits and Systems (PECAS) Technical Committee in IEEE Circuits and Systems Society (CASS). Dr. Liang is an ASME Fellow and an IEEE CASS Distinguished Lecturer (2025—2026).
报告摘要：
Kinetic Energy Harvesting (KEH) is an emerging solution that captures ambient vibration energy to power battery-free electronics, enabling maintenance-free and eco-friendly Internet of Things (IoT) applications. A critical component in KEH systems is the power conditioning circuit, which interfaces with the upstream electromechanical transducer and delivers regulated power to downstream embedded digital devices. This talk provides a comprehensive overview of the physical principles, historical developments, and the latest advancements in switched-mode power conditioning circuits for KEH devices, which encompass piezoelectric, electromagnetic, and triboelectric energy sources. The discussion will focus on electromechanical dynamic interactions, self-powered solutions, multiple synchronous switching techniques, and resonance tuning, all aimed at enhancing the understanding, implementation, and improvement of upstream power interconnections. Another special attention will be given to the energy buffer-release mechanism, which ensures a stable and reliable energy supply to downstream electronics. Beyond the technical details, the speaker will also explore the challenges and opportunities associated with the technological transfer of battery-free IoT solutions, highlighting the path toward scalable, real-world applications.