Explanipedia

Characterization and Modeling of Dual-Single-Layer PCB Resonators for Megahertz Hybrid Inductive and Capacitive Wireless Power Transfer Open

Kerui Li, Jiayang Wu, Tang Xiao, K.W.E. Cheng, S.Y.R. Hui · 2025

A Generalized Multi-Loop Controller With Enhanced Robustness and Its Design Guideline Open

Huawei Yuan, Yuhan Zhang, Wanrong Li, Jinghang Li, Sinan Li , et al. · 2025

Estimation of Non-Stationary Frequency and Fundamental Components for Power Electronics-Dominated Energy Systems Open

Peng Li, Hin Sang Lam, Boli Chen, Raymond Wai Man Ng, Thomas Parisini , et al. · 2025

Estimation of fundamental frequency and sinusoidal components is required for the regulation of modern power electronics-dominated power systems. Most of the existing estimation methods are designed for signals with stationary frequency. H…

External RF-EMF alters cell number and ROS balance possibly via the regulation of NADPH metabolism and apoptosis Open

Sheung-Ching Chow, Yang Zhang, Raymond W. M. Ng, S.Y.R. Hui, Ilia A. Solov’yov , et al. · 2024

The influence of weak radio-frequency electromagnetic field (RF-EMF) on living organisms raises new concern because of the Industrial, Scientific, and Medical (ISM) frequency band at 6.78 MHz being promoted by the AirFuel Alliance for mid-…

Guest Editorial: Special Issue on Advanced Charging Technologies for Next-Generation Electric Vehicles Open

Haoyu Wang, Chris Mi, S.Y.R. Hui · 2024

To embrace a carbon neutrality future, we are witnessing the paradigm shift from internal combustion engine vehicles to electrified vehicles. The mainstream electric vehicles (EVs) are equipped with a high-voltage battery pack. Charging in…

Wireless Power Transfer: A Paradigm Shift for the Next Generation Open

S.Y.R. Hui, Yun Yang, Cheng Zhang · 2023

The first generation of wireless power transfer (WPT) standard Qi, launched in 2010, contains a wide range of transmitter and receiver designs with the aim of maximizing compatibility to attract many manufacturers to share the same standar…

Dual Digital Twin: Cloud-Edge Collaboration with Lyapunov-Based Incremental Learning in Ev Batteries Open

Jiahang Xie, Rufan Yang, S.Y.R. Hui, Hung D. Nguyen · 2023

A Multi-Hysteresis Control for Minimizing Battery Charging Time Within Industrial JEITA Guidelines Open

Hui Liang, Yun Yang, Liangxi He, Jialong Qu, Chi-Kwan Lee , et al. · 2022

In common industrial practices, the Japan Electronics and Information Technology Industries Association (JEITA) guideline is widely adopted for battery temperature regulations. However, the conventional JEITA-compliant temperature-regulate…

Cyber-Attack Detection and Countermeasure for Distributed Electric Springs for Smart Grid Applications Open

Jie Chen, Alexander J. Gallo, Shuo Yan, Thomas Parisini, S.Y.R. Hui · 2022

With increasing installations of grid-connected power electronic converters in the distribution network, there is a new trend of using distributed control in a cyber layer to coordinate the operations of these power converters for improvin…

Improvement of Lithium-Ion Battery Charging From the State-of-the-Art Industrial JEITA Guidelines to a Hybrid Temperature-Regulated Current Control Open

Hui Liang, Yun Yang, S.Y.R. Hui · 2021

This article addresses some practical issues of the Japan Electronics and Information Technology Industries Association (JEITA) battery charging guidelines and common industrial practices. The issues involve the temperature-dependent charg…

Guest Editorial Special Issue on Recent Advancements of Power Electronics Technology and Applications Open

Tsorng‐Juu Liang, S.Y.R. Hui · 2021

The IEEE William E. Newell Power Electronics Award has been annually presented since 1977 for outstanding achievement in power electronics. Beginning in 2005, this award was elevated to an IEEE Technical Field Award, sponsored by the Power…

Exponential Modulation Integral Observer for Online Detection of the Fundamental and Harmonics in Grid-Connected Power Electronics Equipment Open

Hin Sang Lam, Peng Li, Boli Chen, Wai Man Ng, Thomas Parisini , et al. · 2021

Harmonic current estimation is required in active power filters for compensation purposes. The most efficient way of calculating the total harmonic current up to the infinite order is to subtract the fundamental component from the distorte…

Line Resistance Identification-Based Adaptive Droop Control for Distribution Power Loss Minimization of DC Microgrids Open

Yajie Jiang, Yun Yang, Tang Xiao, S.Y.R. Hui · 2021

In this paper, the distribution power loss of DC microgrids comprising both line loss and converter loss is modelled as a quadratic function of current allocation coefficients, which is a convex function with constraints. On basis of conve…

Design of A Wireless Power Modulator for Wireless Power Transfer Systems Open

Yun Yang, Hui Liang, Tang Xiao, S.Y.R. Hui · 2021

This paper presents the design guidance of a wireless power modulator (WPM) for wireless power transfer (WPT) systems with multiple receivers. The WPM is implemented by an inductive-dominant relay resonator to alter the transimpedances amo…

Distributed Convex Optimization-Based Control for Distribution Power Loss Minimization of Islanded Three-Phase AC Microgrids Open

Yajie Jiang, Yun Yang, Tang Xiao, S.Y.R. Hui · 2021

In this paper, the distribution power loss of islanded three-phase AC microgrids comprising both line loss and power converter loss is modelled as a quadratic function of current allocation coefficients, which is a convex function with con…

Dynamic Response and Stability Margin Improvement of Wireless Power Receiver Systems via Right-Half-Plane Zero Elimination Open

Kerui Li, Tang Xiao, S.Y.R. Hui · 2021

The series-series compensation topology is widely adopted in many wireless \npower transfer applications. For such systems, their wireless power receiver \npart typically involves a DC-DC converter with front-stage full-bridge diode \nrect…

A Mustard Seed Planted Years Ago Sprouts and Continues to Grow Open

Olorunfemi Ojo, Tsorng-Juu Peter Liang, Suryanarayana Doolla, Lennart Harnefors, S.Y.R. Hui , et al. · 2021

A mustard seed planted years ago Sprouts and continues to grow.

A Comparative Study on Overall Efficiency of Two-Dimensional Wireless Power Transfer Systems Using Rotational and Directional Methods Open

Hanwei Wang, Cheng Zhang, Yun Yang, Hui Liang, S.Y.R. Hui · 2021

Two-dimensional (2-D) wireless power transfer (WPT) systems can be controlled by either the directional method or the rotational method. The rotational method refers to the use of omnidirectional transmitter generating rotational flux rega…

A Generalized Reverse-Electrodialysis Model Incorporating Both Continuous and Recycle Modes for Energy Harvesting From Salinity Gradient Power Open

Zhihong Yan, Ying Huang, Chenxiao Jiang, Ying Mei, Tang Xiao , et al. · 2021

Salinity gradient power (SGP) derived from sea and fresh water through reverse electrodialysis (RED) is an emerging discipline with huge potential for carbon-free energy harvesting. SGP technology is still in an infant stage and there is a…

Distributed Sliding Mode Observer-Based Secondary Control for DC Microgrids Under Cyber-Attacks Open

Yajie Jiang, Yun Yang, Tang Xiao, S.Y.R. Hui · 2020

The conventional distributed secondary control is widely adopted for distributed energy resources (DERs) in DC microgrids to achieve bus voltage restorations and output current/power sharing. However, when the DER systems are under cyber-a…

Distributed Higher Order Differentiator-Based Distributed Secondary Control for DC Microgrids Under Cyber-Attacks Open

Yajie Jiang, Yun Yang, Tang Xiao, S.Y.R. Hui · 2020

When the false signal cyber-attacks are applied, the secondary control cannot be achieved any more. More seriously, the stability of the DC microgrid may also be threatened by the intrusive false signal cyber-attacks. To this end, a distri…

ON Effect of Right-Half-Plane Zero Present in Buck Converters With Input Current Source in Wireless Power Receiver Systems Open

Kerui Li, Tang Xiao, S.Y.R. Hui · 2020

In wireless power receiver systems, the buck converter is widely used to step down the higher rectified voltage derived from the wireless receiver coil, to a lower output voltage for the immediate battery charging process. In this work, th…

Electric Spring and Smart Load: Technology, System-Level Impact, and Opportunities Open

Chi-Kwan Lee, Heng Liu, Tang Xiao, Balarko Chaudhuri, S.Y.R. Hui · 2020

Increasing use of renewable energy sources to combat climate change comes with the challenge of power imbalance and instability issues in emerging power grids. To mitigate power fluctuation arising from the intermittent nature of renewable…

Value of Point-of-Load Voltage Control for Enhanced Frequency Response in Future GB Power System Open

Jinrui Guo, Luis Badesa, Fei Teng, Balarko Chaudhuri, S.Y.R. Hui , et al. · 2020

The need for Enhanced Frequency Response (EFR)is expected to increase significantly in future low-carbon GreatBritain (GB) power system. One way to provide EFR is touse power electronic compensators (PECs) for point-of-loadvoltage control …

On Beat Frequency Oscillation of Two-Stage Wireless Power Receivers Open

Kerui Li, Tang Xiao, S.Y.R. Hui · 2020

Two-stage wireless power receivers, which typically include an AC-DC diode\nrectifier and a DC-DC regulator, are popular solutions in low-power wireless\npower transfer applications. However, the interaction between the rectifier and\nthe …

Fast Hardware Approach to Determining Mutual Coupling of Series–Series-Compensated Wireless Power Transfer Systems With Active Rectifiers Open

Yun Yang, Tang Xiao, S.Y.R. Hui · 2020

Maximum energy efficiency tracking of series-series-compensated wireless power transfer systems with active rectifiers require the information of mutual coupling coefficient or correlated variables, which are conventionally monitored based…

Single-Stage Regulated Resonant WPT Receiver With Low Input Harmonic Distortion Open

Kerui Li, Tang Xiao, S.Y.R. Hui · 2019

Resonant rectifier topologies would be a promising candidate for achieving simple, compact, and reliable single-stage wireless power transfer (WPT) receiver if not for the lack of good DC regulation capability. This paper investigates the …

Single-Switch-Regulated Resonant WPT Receiver Open

Kerui Li, Tang Xiao, S.Y.R. Hui · 2019

A single-switch-regulated wireless power transfer (WPT) receiver is presented\nin this letter. Aiming at low-cost applications, the system involves only a\nsingle-switch class-E resonant rectifier, a frequency synchronization circuit,\nand…

Towards predicting intracellular radiofrequency radiation effects Open

Claus Nielsen, S.Y.R. Hui, Wing‐Yee Lui, Ilia A. Solov’yov · 2019

Recent experiments have reported an effect of weak radiofrequency magnetic fields in the MHz-range on the concentrations of reactive oxygen species (ROS) in living cells. Since the energy that could possibly be deposited by the radiation i…

Comparison of point‐of‐load versus mid‐feeder compensation in LV distribution networks with high penetration of solar photovoltaic generation and electric vehicle charging stations Open

Zohaib Akhtar, Martin Opatovsky, Balarko Chaudhuri, S.Y.R. Hui · 2019

Increasing use of distributed generation (DG), mainly roof‐top photovoltaic (PV) panels and electric vehicle (EV) charging would cause over‐ and under‐voltage problems generally at the remote sections of the low‐voltage (LV) distribution f…

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