Blar i NTNU Open på forfatter "Zhou, Jiayu"
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A Carrier-Based Discontinuous PWM for Single and Parallel Three-Level T-Type Converters with Neutral-Point Potential Balancing
Zhou, Jiayu; Ojo, Joseph Olorunfemi; Tang, Fen; Haruna, Josiah; Loh, Poh Chiang (Peer reviewed; Journal article, 2021)The three-level converters have an inherent problem of the neutral-point (NP) voltage unbalance due to the split dc-link capacitors. This NP voltage unbalance degrades the output voltage/current waveform quality. A ... -
Evaluation and Suppression of Oscillations in Inductive Power Transfer Systems with Constant Voltage Load and Pulse Skipping Modulation
Zhou, Jiayu; Guidi, Giuseppe; Ljøkelsøy, Kjell; Suul, Jon Are Wold (Peer reviewed; Journal article, 2023)This paper identifies how Constant Voltage Load (CVL) characteristics cause Inductive Power Transfer (IPT) systems to exhibit a poorly damped oscillation mode. When operated with pulse skipping strategies such as Pulse ... -
Impact on Efficiency of Inductive Battery Charging System by Sub-Resonant Frequency Control during Large Variations in Coupling Conditions
Zhou, Jiayu; Guidi, Giuseppe; Suul, Jon Are Wold (Chapter, 2020)This paper presents a detailed analysis of power transfer efficiency for inductive battery charging systems designed for sub-resonant frequency control during large variations in coupling conditions. It is first demonstrated ... -
Modeling and control of inductive power transfer systems with constant voltage load
Zhou, Jiayu (Doctoral theses at NTNU;2023:107, Doctoral thesis, 2023)In recent decades, wireless power transfer (WPT) systems have been used in more and more fields, such as portable electronic devices, implanted medical devices, power system monitoring devices, underwater vehicles, etc. ...