A5074686364- Innovative Energy Harvesting Technologies
- Energy Harvesting in Wireless Networks
- Advanced Sensor and Energy Harvesting Materials
- Wireless Power Transfer Systems
- Advanced DC-DC Converters
- Advanced Battery Technologies Research
- Structural Health Monitoring Techniques
- Advancements in Battery Materials
- Wind and Air Flow Studies
- Simulation and Modeling Applications
- Electric Motor Design and Analysis
- Magnetic Bearings and Levitation Dynamics
- Advanced Sensor Technologies Research
Zhejiang Normal University
2021-2023
Nanjing University of Aeronautics and Astronautics
2016-2017
Energy harvesting using piezoelectric transduction offers a promising alternative to the conversion of kinetic energy like ambient vibration and rotational motion into useful electricity in self-powered electronic devices. To improve reliability effective bandwidth harvesters (RPEHs), novel harvester utilizing an asymmetrically deformed transducer excited by magnetic attractive force is presented this paper. Unlike previous most RPEHs where elements experienced symmetrical bidirectional...
The mechanism of current ripple propagation in a digital controlled LLC converter is investigated from three aspects: battery load, quantization error, and double line frequency perturbation at the input. With conventional modulation (FM), every step accompanied by error due to limited resolution controllers. Large propagated output poor FM extremely low internal impedance batteries, which hurts health seriously. analytical model oscillation proposed considering effects input voltage...
With the sinusoidal charging scheme, large dc link capacitance of on-board battery charger can be reduced significantly. However, variable current together with wide voltage range imposes serious challenge to maintain high efficiency throughout whole procedure. This paper proposes a LLC dc-dc transformer (DCX) solution improve over full range. Furthermore, on basis topology, power decoupling control scheme is proposed realize front-end PFC and output at side. A 1 kW prototype was built...
In this Letter, an indirectly excited approach of introducing air-filled separation chamber is proposed to develop a drum-like piezoelectric rotational energy harvester (DL-PREH) via magnetic beating. The delivers the external excitation transducer intermediate air chamber, and electric output induced by pressure inside chamber. Thus, high reliability can be guaranteed for under unexpected excessive impact due zone. Moreover, easily implement resonant frequency tuning altering drum height...
Mechanism of current ripple propagation in a digital controlled LLC converter is investigated from three aspects: battery load, quantization error and double line frequency perturbation at input. With conventional Frequency Modulation (FM), every modulation step accompanied by due to limited resolution controllers. Large propagated output poor extremely low internal impedance batteries, which hurts health seriously. The synchronous Dither (FD) proposed improve reduce further. A detailed...