Chi K. Tse
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View article: Building hurricane-resilient urban grid by climate-informed system hardening optimization
Building hurricane-resilient urban grid by climate-informed system hardening optimization Open
Climate-driven extreme weather increasingly threatens urban electricity distribution networks, undermining energy security, economic stability, and global climate adaptation goals. In hurricane-prone regions, resilience planning often lack…
View article: Unnoticeable Community Deception via Multi-objective Optimization
Unnoticeable Community Deception via Multi-objective Optimization Open
Community detection in graphs is crucial for understanding the organization of nodes into densely connected clusters. While numerous strategies have been developed to identify these clusters, the success of community detection can lead to …
View article: Clock Pulling Enables Maximum-Efficiency Wireless Power Transfer
Clock Pulling Enables Maximum-Efficiency Wireless Power Transfer Open
Nonlinear parity-time (PT) symmetry in non-Hermitian wireless power transfer (WPT) systems, while attracting significant attention from both physics and engineering communities, have posed formidable theoretical and practical challenges du…
View article: Mitigating the Structural Bias in Graph Adversarial Defenses
Mitigating the Structural Bias in Graph Adversarial Defenses Open
In recent years, graph neural networks (GNNs) have shown great potential in addressing various graph structure-related downstream tasks. However, recent studies have found that current GNNs are susceptible to malicious adversarial attacks.…
View article: Quantifying the Noise of Structural Perturbations on Graph Adversarial Attacks
Quantifying the Noise of Structural Perturbations on Graph Adversarial Attacks Open
Graph neural networks have been widely utilized to solve graph-related tasks because of their strong learning power in utilizing the local information of neighbors. However, recent studies on graph adversarial attacks have proven that curr…
View article: Dispersive gains enhance wireless power transfer with asymmetric resonance
Dispersive gains enhance wireless power transfer with asymmetric resonance Open
Parity-time (PT) symmetry is a fundamental concept in non-Hermitian physics that has recently gained attention for its potential in engineering advanced electronic systems and achieving robust wireless power transfer (WPT) even in the pres…
View article: Achieving Ultrahigh Efficiency of Triboelectric Nanogenerator Energy Harvesting Systems via Hybrid Electronic‐Spark Power Management
Achieving Ultrahigh Efficiency of Triboelectric Nanogenerator Energy Harvesting Systems via Hybrid Electronic‐Spark Power Management Open
Significant efforts are devoted to optimizing the efficiency of triboelectric energy harvesting systems, particularly through the design of an advanced power management system (PMS) for Triboelectric Nanoenerators (TENGs). A critical aspec…
View article: Dispersive gains enhance wireless power transfer with asymmetric resonance
Dispersive gains enhance wireless power transfer with asymmetric resonance Open
Parity-time symmetry is a fundamental concept in non-Hermitian physics that has recently gained attention for its potential in engineering advanced electronic systems and achieving robust wireless power transfer even in the presence of dis…
View article: Stability Analysis and Design of Islanded Microgrids Integrating Pinning-Based and Consensus-Based Distributed Secondary Control
Stability Analysis and Design of Islanded Microgrids Integrating Pinning-Based and Consensus-Based Distributed Secondary Control Open
In this paper, the impact of pinning-based and consensus-based distributed secondary control on the stability of islanded microgrids is studied. A nonlinear model of the islanded microgrid is first established, incorporating the voltage-lo…
View article: Distributed cooperative control of DC microgrid cluster with multiple voltage levels
Distributed cooperative control of DC microgrid cluster with multiple voltage levels Open
Multiple DC microgrids are interconnected to form a DC microgrid cluster, which can effectively improve the renewable energy consumption capacity and power supply reliability of the microgrid cluster through sharing of energy storage among…
View article: A Low Computational Burden Model Predictive Control for Dynamic Wireless Charging
A Low Computational Burden Model Predictive Control for Dynamic Wireless Charging Open
Dynamic wireless charging (DWC) technology can help alleviate the problem of short driving range for battery-powered vehicles. In this article, a model predictive control (MPC) is applied to the buck converter on the secondary side of a DW…
View article: Guest Editorial Complex Cyber-Multitudinal-Physical Systems: Analysis, Decision-Making, and AI Applications
Guest Editorial Complex Cyber-Multitudinal-Physical Systems: Analysis, Decision-Making, and AI Applications Open
This Special Issue of the IEEE Journal on Emerging and Selected Topics in Circuits and Systems (JETCAS) is dedicated to disseminating the latest research results and practical applications on the analysis and decision-making of complex cyb…
View article: Transient Synchronization Stability of Grid-Following Converters Considering Nonideal Current Loop
Transient Synchronization Stability of Grid-Following Converters Considering Nonideal Current Loop Open
The widely deployed grid-following converters (GFLCs) may lose synchronization under grid disturbances, presenting a critical challenge to the power electronics penetrated power grid. Existing methods for analyzing transient synchronizatio…
View article: Comparison of Homoclinic Bifurcations Between Grid-Following and Grid-Forming Converters
Comparison of Homoclinic Bifurcations Between Grid-Following and Grid-Forming Converters Open
A second-order model is developed to describe the essential behavior of the grid-following converter (GFLC) and the grid-forming converter (GFMC) for studying the synchronization characteristics of grid-connected converter systems. In this…
View article: A Novel Spatiotemporal Chaotic Model with Provable Security
A Novel Spatiotemporal Chaotic Model with Provable Security Open
In the application of chaos in cryptography, two questions remain unanswered: Does the chaos-based cipher possess provable security? Can the reproduction of a chaotic model or chaotic sequence be specified as a non-deterministic polynomial…
View article: In-Depth Analysis of Smooth and Nonsmooth Bifurcations for an Open-Loop Boost Converter Feeding Constant Power Loads in Discontinuous Conduction Mode
In-Depth Analysis of Smooth and Nonsmooth Bifurcations for an Open-Loop Boost Converter Feeding Constant Power Loads in Discontinuous Conduction Mode Open
This paper presents a study of the existence conditions of limit cycles and mechanisms when losing their stability in an open-loop DC–DC boost converter loaded with a constant power load and operating in discontinuous conduction mode. Firs…
View article: Bifurcation Phenomena in Open-Loop DCM-Operated DC–DC Switching Converters Feeding Constant Power Loads
Bifurcation Phenomena in Open-Loop DCM-Operated DC–DC Switching Converters Feeding Constant Power Loads Open
Constant power loading is an effect that appears in multiple-stage energy conversion systems with individually regulated switching power converters. In a two-stage system, an upstream or source converter drives one or more downstream or lo…
View article: GANI: Global Attacks on Graph Neural Networks via Imperceptible Node Injections
GANI: Global Attacks on Graph Neural Networks via Imperceptible Node Injections Open
Graph neural networks (GNNs) have found successful applications in various graph-related tasks. However, recent studies have shown that many GNNs are vulnerable to adversarial attacks. In a vast majority of existing studies, adversarial at…
View article: Bifurcations of Grid-Following Rectifiers and Routes to Voltage Instability in Weak AC Grids
Bifurcations of Grid-Following Rectifiers and Routes to Voltage Instability in Weak AC Grids Open
As indispensable components in modern power systems, grid-following rectifiers would interact with the grid. Such interaction, however, may lead to unexpected collapse of the ac bus voltage. In this paper, three routes to voltage instabili…
View article: Nonlinear Behavior and Reduced-Order Models of Islanded Microgrid
Nonlinear Behavior and Reduced-Order Models of Islanded Microgrid Open
An islanded microgrid consisting of grid-forming converters, being a high-order nonlinear system, exhibits rich nonlinear dynamical phenomena. The use of appropriate reduced-order models offers useful physical insights into the behavior of…
View article: Sub-Synchronous Oscillations and Transient Stability of Islanded Microgrid
Sub-Synchronous Oscillations and Transient Stability of Islanded Microgrid Open
Sustained sub-synchronous oscillations are observed in an islanded microgrid consisting of grid-forming converters under a large transient disturbance. Such oscillations are studied in terms of various types of hidden attractors, namely, h…
View article: Synthesis and Analysis of Three-Port DC/DC Converters with Two Bidirectional Ports Based on Power Flow Graph Technique
Synthesis and Analysis of Three-Port DC/DC Converters with Two Bidirectional Ports Based on Power Flow Graph Technique Open
This paper presents a systematic topological study to derive all possible basic and non-isolated three-port converters (TPCs) using power flow diagrams. Unlike most reported TPCs with one bidirectional port, this paper considers up to two …
View article: Who Should Get Vaccinated First? An effective Network Information-driven Priority Vaccination Strategy
Who Should Get Vaccinated First? An effective Network Information-driven Priority Vaccination Strategy Open
Approval of emergency use of the Novel Coronavirus Disease 2019 (COVID-19) vaccines in many countries has brought hope to ending the COVID-19 pandemic sooner. Considering the limited vaccine supply in the early stage of COVID-19 vaccinatio…