A5086149862- HVDC Systems and Fault Protection
- High-Voltage Power Transmission Systems
- Microgrid Control and Optimization
- Multilevel Inverters and Converters
- Energy Efficient Wireless Sensor Networks
- Power Systems and Renewable Energy
- Silicon Carbide Semiconductor Technologies
- Smart Grid and Power Systems
- Mobile Ad Hoc Networks
- Power Quality and Harmonics
- Underwater Vehicles and Communication Systems
- Power Systems Fault Detection
- Advanced DC-DC Converters
- Power Systems and Technologies
- Smart Grid Security and Resilience
- Electric Vehicles and Infrastructure
- Smart Grid Energy Management
- Railway Systems and Energy Efficiency
- Islanding Detection in Power Systems
- Advanced Sensor and Control Systems
- Energy Harvesting in Wireless Networks
- Advanced Wireless Network Optimization
- Induction Heating and Inverter Technology
- Photovoltaic System Optimization Techniques
- Integrated Energy Systems Optimization
Hubei University of Technology
2019-2025
Hong Kong Polytechnic University
2025
Nomor Research (Germany)
2024
Shanghai University
2022-2024
Northeast Institute of Geography and Agroecology
2024
Chinese Academy of Sciences
2021-2024
Huazhong University of Science and Technology
2013-2023
China Southern Power Grid (China)
2013-2023
Columbia University
2022
Peking University
2009-2021
In order to solve the problem of which dynamic response a supercapacitor (SC) is limited due mismatch characteristics between DC/DC converter and in an energy storage system, this paper proposes hybrid model predictive control strategy based on dual active bridge (DAB). The considers DAB unified way, including equivalent series resistance capacitance parameters SC. method can obtain large charging discharging current SC, thereby not only improving overall speed but also expanding actual...
Unbalanced voltage fluctuation at the point of common coupling (PCC) is a challenging power quality problem in distribution system. This study presents an unbalanced PCC regulation scheme with positive- and negative-sequence control for modular multilevel converter (MMC) medium-voltage static synchronous compensator (DSTATCOM) application. The proposed positive-sequence utilised to regulate component rated value, while aims cancel out completely. Compensation commands whether or are...
To fulfill the Chinese government's targets for energy conservation and emission reductions, significant efforts to increase efficiency reduce emissions in system have been made by developing combined heat power plants, expanding transmission, incorporating renewables. These elements are not always compatible with each other, however. Renewables particular face difficulties being integrated into system, a portion of this generation is often curtailed, from wind. This article describes work...
Smart meters, designed for information collection and system monitoring in smart grid, report fine-grained power consumption to utility providers. With these highly accurate profiles of energy usage, however, it is possible identify consumers' specific activity or behavior patterns, thereby giving rise serious privacy concerns. In this paper, concern addressed by using battery storage. Beyond protection, batteries can also be used cut down the electricity bill. From a holistic perspective,...
The utilization of silicon carbide (SiC) MOSFET instead (Si) IGBT can significantly improve the performance many converters. However, a modular multilevel converter (MMC) completely based on SiC suffers from high cost and conduction loss at power levels. To solve these issues, an Si hybrid MMC are proposed in this letter. In new topology, only one full-bridge submodule (SM) each arm uses MOSFETs, while other half-bridge SMs use IGBTs. Meanwhile, specialized modulation scheme is to move most...
A frequency-selective rasorber (FSR) with a high selectivity transmission passband and two absorption bands is proposed in this letter. The design method introduced based on the equivalent circuit model (ECM). This structure consists of lossy layer lossless layer. composed Jerusalem elements parallel resonance unit center, load resistors metal branch. integrated by multilayer frequency selective surface to realize wide band. current distributions loss density were illustrated explain working...
Due to capacitor elements and inductive line impedance in power system, parallel resonance could be triggered the presence of harmonic currents from nonlinear load, whose frequency may shift resulting intermittent switching devices. So it is difficult for shunt active filter (SAPF) damp resonance. This paper investigates detection with square-wave current injection selective compensation control closed-loop regulation point common coupling (PCC) voltage SAPF. The principles its are analyzed...
Hybrid modular multilevel converter (MMC) with half-bridge sub-modules (HBSMs) and full-bridge SMs (FBSMs) is considered as a promising topology for high-voltage direct current (HVDC) system to deal dc fault due its negative output from FBSMs. In addition, the FBSMs can increase modulation index at steady state. With boosted index, ac voltage be enhanced remains unchanged under decreased voltage. However, characteristics of SM capacitor fluctuation such hybrid MMC are different that in...
The phase-shifted-carrier (PSC) technique is preferred for multilevel converters in medium-voltage applications with low submodule (SM) number. This can elevate the equivalent switching frequency resulting total harmonic distortions. However, half-/full-bridge hybrid modular converter (MMC) boosted modulation index, conventional PSC method invalid due to asymmetric voltage reference wave. SM capacitor voltages deviate from rated value and harmonics below appear arm ac voltages. paper...
Shunt active power filter (SAPF) is conventionally designed to compensate harmonic currents from non-linear load. However, due parallel resonance between line impedance and capacitive load, the distortion of voltage at point common coupling (PCC) grid current may not be mitigated completely by traditional manner SAPF. This paper investigates compensation damping combined control for SAPF with selective closed-loop regulation PCC voltage. Through developing equivalent circuit model, physical...
UDN is considered as a promising technique to boost the network capacity by reducing path loss between base station and UE for upcoming 5G mobile communication, while backhaul has become bottleneck in huge data traffic generated UEs. One effective approach coping with caching content at edge of UDNs. Taking advantage D2D not only SBSs but also can serve cache nodes help others access sharing channel directly communicate each other, thus tackling bandwidth limitation links. However, due...
In this article, a hybrid modular multilevel converter (MMC) topology is proposed, in which two of the submodules (SMs) are based on SiC <sc xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">mosfet</small> , while others Si IGBT. proposed topology, capacitor voltage SM controlled to be half that SM, reduces requirement for blocking . What more, article improves modulation scheme move most switching actions from SMs SMs, strengthens merits and avoids...
A multiobjective optimization coverage control strategy is proposed for solving the contradictory problem among energy consumption, equilibrium of energy, and network in wireless sensor networks. new evolutionary algorithm named Multiobjective free search (MOFS) designed WSN based on fitness functions binary coding schemes. The used to estimate number active nodes because individual cannot have their working state information readily. Simulation shows that MOFS effective solve typical...
This study presents a kind of three-phase three-wire double-star-type transformer-less modular multilevel converters (MMCs) in medium-voltage distribution static synchronous compensators (DSTATCOMs) application based on pulse-width-modulated cascaded half-bridge modules. An advanced steady-state analysis for arm current and capacitor voltage is presented to give the explicit converter performance evaluation project installation. Two key equations first second component equivalent circuits...
A traveling wave fault location method based on multi measuring points for distribution network with distributed generation is proposed in this paper. novel algorithm the time difference between first aerial-mode and zero-mode wave-fronts of are used to obtain preliminary without wide area precision synchronization. This acquires information gathered by at busbar terminals trunk feeder random error eliminated using redundant data. It's verified that paper can achieve accurate section...
The submodule (SM) capacitor voltage ripple and the root mean square (RMS) of arm current are related to costs losses modular multilevel converter (MMC). optimization issues have received great attention. second-order circulating control third-order harmonic injection two conventional methods, but existing research neglects their coupling effects. In this paper, these methods comprehensively investigated coordinately combined. First, various performances MMC under multiple injections...