Imperial College London

ProfessorShuHui

Faculty of EngineeringDepartment of Electrical and Electronic Engineering

Chair in Power Electronics
 
 
 
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Contact

 

+44 (0)20 7594 6170r.hui

 
 
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Location

 

1108aElectrical EngineeringSouth Kensington Campus

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Summary

 

Publications

Publication Type
Year
to

472 results found

Li K, Tan S-C, Hui SYR, 2022, Interleaved Buck-Type Rectifier With Pseudo-DC-Link Capacitors for Automatic Current Balancing, IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, Vol: 69, Pages: 12676-12687, ISSN: 0278-0046

Journal article

Zeng J, Chen S, Yang Y, Hui SYRet al., 2022, A Primary-Side Method for Ultrafast Determination of Mutual Coupling Coefficient in Milliseconds for Wireless Power Transfer Systems, IEEE TRANSACTIONS ON POWER ELECTRONICS, Vol: 37, Pages: 15706-15716, ISSN: 0885-8993

Journal article

Jiang Y, Yang Y, Tan S-C, Hui SYRet al., 2022, Power Loss Minimization of Parallel-Connected Distributed Energy Resources in DC Microgrids Using a Distributed Gradient Algorithm-Based Hierarchical Control, IEEE TRANSACTIONS ON SMART GRID, Vol: 13, Pages: 4538-4550, ISSN: 1949-3053

Journal article

Wu J, Li S, Tan S-C, Hui SYRet al., 2022, Fixed-Frequency Phase-Shift Modulated Capacitor-Clamped LLC Resonant Converter for EV Charging, IEEE TRANSACTIONS ON POWER ELECTRONICS, Vol: 37, Pages: 13730-13742, ISSN: 0885-8993

Journal article

Beniwal N, Farivar GG, Lam HS, Ceballos S, Gorla NBY, Pou J, Hui SYR, Blaabjerg Fet al., 2022, Dual-Layer Pulsewidth Modulation Technique for Average Neutral Point Current Control in Neutral-Point-Clamped Converters, IEEE TRANSACTIONS ON POWER ELECTRONICS, Vol: 37, Pages: 11762-11773, ISSN: 0885-8993

Journal article

Jiang Y, Yang Y, Tan S-C, Hui SYRet al., 2022, A High-Order Differentiator Based Distributed Secondary Control for DC Microgrids Against False Data Injection Attacks, IEEE TRANSACTIONS ON SMART GRID, Vol: 13, Pages: 4035-4045, ISSN: 1949-3053

Journal article

Lam HS, Li P, Chen B, Ng WM, Parisini T, Hui SYRet al., 2022, Exponential modulation integral observer for online detection of the fundamental and harmonics in grid-connected power electronics equipment, IEEE Transactions on Control Systems Technology, Vol: 30, Pages: 1821-1833, ISSN: 1063-6536

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 distorted current. Direct determination of the fundamental component of a distorted current of mains frequency was realized recently with a third-order modulation integral observer. This article shows that using an exponential modulation function (Exp-MF) for the integral observer will: 1) significantly enhance the robustness of the observer against noise and 2) automatically remove the low-frequency envelope arising from the D/A and A/C sampling processes compared to previous polynomial modulation function. These new and advantageous features are supported with detailed analysis and experimental verification. The robust observer can be implemented in grid-connected power electronics circuits that require the instantaneous information of the fundamental and/or harmonic currents. Practical comparative tests with the adaptive notch filter and recursive discrete Fourier transform (DFT) methods in an active power filter have confirmed the good performance under both the steady and dynamic states of the proposed Exp-MF integral observer.

Journal article

Li H, Li S, Xiao W, Hui SYRet al., 2022, A Modulation Method for Capacitance Reduction in Active-Clamp Flyback-Based AC-DC Adapters, IEEE TRANSACTIONS ON POWER ELECTRONICS, Vol: 37, Pages: 9455-9467, ISSN: 0885-8993

Journal article

Liang H-WR, Yang Y, Hui SYR, 2022, Improvement of Lithium-Ion Battery Charging From the State-of-the-Art Industrial JEITA Guidelines to a Hybrid Temperature-Regulated Current Control, IEEE TRANSACTIONS ON POWER ELECTRONICS, Vol: 37, Pages: 6412-6423, ISSN: 0885-8993

Journal article

Lee ATL, Jin W, Tan S-C, Hui SYet al., 2022, Single-Inductor Multiple-Output (SIMO) Buck Hybrid Converter for Simultaneous Wireless and Wired Power Transfer, IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS, Vol: 10, Pages: 2163-2177, ISSN: 2168-6777

Journal article

Yan S, Hui SYR, 2022, A Simple Multi-Vector Predictive Direct Power Control Using Geometric Modulation, IEEE TRANSACTIONS ON POWER ELECTRONICS, Vol: 37, Pages: 2899-2908, ISSN: 0885-8993

Journal article

Li K, Yuan H, Tan SC, Hui Ret al., 2022, Overshoot Damping and Dynamics Improvement in Wireless Power Transfer Systems Via Receiver-Side Controller Design, IEEE Transactions on Power Electronics, Vol: 37, Pages: 2362-2371, ISSN: 0885-8993

Buck converters have been extensively used for output regulation in the receiver of series-series compensated wireless power transfer (WPT) systems. Nonetheless, there are two major challenges in the controller design of this class of WPT systems. First, due to the current-source nature and finite dc-link capacitance, a right-half-plane (RHP) zero exists in the WPT receiver, reducing its stability margin and causing limited system dynamics. Second, this RHP zero can cause an overshoot issue in the WPT system. Without proper treatment, this overshoot may largely increase the voltage/current stress of the system and even cause catastrophic failure. However, existing solutions to the above two issues suffer from long communication delays or significantly compromised output regulation, degrading system performance. In this article, the slow dynamics and the overshoot issue of the WPT system are elaborated in theory and a solution is proposed by adding a feedforward path of the dc-link voltage in the receiver's controller. No communication is involved in the proposed control method, and only trivial computation is added to the controller. The proposed method is examined on a WPT prototype. The experimental results show that the two issues of the WPT system can be simultaneously solved by the proposed method while the output regulation of the system is not compromised.

Journal article

Fang Y, Qu J, Pong BMH, Lee CK, Hui RSYet al., 2022, Quasi-Static Modeling and Optimization of Two-Layer PCB Resonators in Wireless Power Transfer Systems for 110-kV Power Grid Online Monitoring Equipment, IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, Vol: 69, Pages: 1400-1410, ISSN: 0278-0046

Journal article

Chen J, Gallo AJ, Yan S, Parisini T, Hui SYRet al., 2022, Cyber-attack detection and countermeasure for distributed electric springs for smart grid applications, IEEE Access, Vol: 10, Pages: 13182-13192, ISSN: 2169-3536

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 improving power system stability. However, cyber-attacks remain a threat to such distributed control. This paper addresses the cyber-attack detection and a countermeasure of distributed electric springs (ESs) that have emerged as a fast demand-response technology. A fully distributed model-based architecture for cyber-attack detection in the communication network is developed. Based on a dynamic model of ES with consensus control, a local state estimator is proposed and practically implemented to monitor the system. The estimator is fully distributed because only local and neighboring information is necessary. A countermeasure for the distributed ESs to ride through the cyber-attack and maintain regulatory services in a microgrid is demonstrated successfully. Experimental results are provided to verify the effectiveness of the proposed cyber-attack detection method and its ride-through capability.

Journal article

Wong CPG, Lee ATL, Li K, Tan S-C, Hui SYet al., 2022, Precise Luminous Flux and Color Control of Dimmable Red-Green-Blue Light-Emitting Diode Systems, IEEE TRANSACTIONS ON POWER ELECTRONICS, Vol: 37, Pages: 588-606, ISSN: 0885-8993

Journal article

Wang H, Zhang C, Yang Y, Liang HWR, Hui SYRet al., 2022, A Comparative Study on Overall Efficiency of Two-Dimensional Wireless Power Transfer Systems Using Rotational and Directional Methods, IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, Vol: 69, Pages: 260-269, ISSN: 0278-0046

Journal article

Li K, Tan S-C, Hui SYR, 2021, Efficient Hybrid-Modulated Single-Stage Wireless Power Receiver With Continuous DC Current, IEEE TRANSACTIONS ON POWER ELECTRONICS, Vol: 36, Pages: 13504-13514, ISSN: 0885-8993

Journal article

Lee CK, Liu H, Tan S-C, Chaudhuri B, Hui Set al., 2021, Electric spring and smart load: technology, system-level impact and opportunities, IEEE journal of emerging and selected topics in power electronics, Vol: 9, Pages: 6524-6544, ISSN: 2168-6777

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 renewables, electric spring has been proposed as a fast demand-side management technology. Since its original conceptualization in 2011, many versions and variants of electric springs have emerged and industrial evaluations have begun. This paper provides an update of existing electric spring topologies, their associated control methodologies, and studies from the device level to the power system level. Future trends of electric springs in large-scale infrastructures are also addressed.

Journal article

Yuan H, Li S, Tan S-C, Hui SYRet al., 2021, Sensor Count Reduction for Single-Phase Converters With an Active Power Buffer Using Algebraic Observers, IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, Vol: 68, Pages: 10666-10676, ISSN: 0278-0046

Journal article

Li K, Tan S-C, Hui R, 2021, Dynamic Response and Stability Margin Improvement of Wireless Power Receiver Systems via Right-Half-Plane Zero Elimination, IEEE TRANSACTIONS ON POWER ELECTRONICS, Vol: 36, Pages: 11196-11207, ISSN: 0885-8993

Journal article

Yuan H, Li S, Tan S-C, Hui RS-Yet al., 2021, Simplified Algebraic Estimation Technique for Sensor Count Reduction in Single-Phase Converters With an Active Power Buffer, IEEE TRANSACTIONS ON POWER ELECTRONICS, Vol: 36, Pages: 11444-11455, ISSN: 0885-8993

Journal article

Wu J, Li S, Tan S-C, Hui SYRet al., 2021, Capacitor-Clamped LLC Resonant Converter Operating in Capacitive Region for High-Power-Density EV Charger, IEEE TRANSACTIONS ON POWER ELECTRONICS, Vol: 36, Pages: 11456-11468, ISSN: 0885-8993

Journal article

Jiang Y, Yang Y, Tan S-C, Hui S-YRet al., 2021, Distribution Power Loss Mitigation of Parallel-Connected Distributed Energy Resources in Low-Voltage DC Microgrids Using a Lagrange Multiplier-Based Adaptive Droop Control, IEEE TRANSACTIONS ON POWER ELECTRONICS, Vol: 36, Pages: 9105-9118, ISSN: 0885-8993

Journal article

Li K, Tan S-C, Hui RSY, 2021, ON Effect of Right-Half-Plane Zero Present in Buck Converters With Input Current Source in Wireless Power Receiver Systems, IEEE TRANSACTIONS ON POWER ELECTRONICS, Vol: 36, Pages: 6364-6374, ISSN: 0885-8993

Journal article

Li K, Tan S-C, Hui RSY, 2021, Low-Cost Single-Switch Bidirectional Wireless Power Transceiver for Peer-to-Peer Charging, IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS, Vol: 9, Pages: 3781-3790, ISSN: 2168-6777

Journal article

Li K, Lee ATL, Tan S-C, Hui RSYet al., 2021, Highly Efficient Single-Switch-Regulated Resonant Wireless Power Receiver With Hybrid Modulation, IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS, Vol: 9, Pages: 3770-3780, ISSN: 2168-6777

Journal article

Zhong W, Li H, Hui SYR, Xu MDet al., 2021, Current Overshoot Suppression of Wireless Power Transfer Systems With ON-OFF Keying Modulation, IEEE TRANSACTIONS ON POWER ELECTRONICS, Vol: 36, Pages: 2676-2684, ISSN: 0885-8993

Journal article

Jiang Y, Yang Y, Tan S-C, Hui SYet al., 2021, Distributed Sliding Mode Observer-Based Secondary Control for DC Microgrids Under Cyber-Attacks, IEEE JOURNAL ON EMERGING AND SELECTED TOPICS IN CIRCUITS AND SYSTEMS, Vol: 11, Pages: 144-154, ISSN: 2156-3357

Journal article

Liang HWR, Wang H, Lee C-K, Hui SYRet al., 2021, Analysis and Performance Enhancement of Wireless Power Transfer Systems With Intended Metallic Objects, IEEE TRANSACTIONS ON POWER ELECTRONICS, Vol: 36, Pages: 1388-1398, ISSN: 0885-8993

Journal article

Ying H, Lee ATL, Tan S-C, Hui SYet al., 2021, Highly Efficient Wireless Power Transfer System With Single-Switch Step-Up Resonant Inverter, IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS, Vol: 9, Pages: 1157-1168, ISSN: 2168-6777

Journal article

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