A5044643327- Islanding Detection in Power Systems
- Microgrid Control and Optimization
- Complex Network Analysis Techniques
- Muscle activation and electromyography studies
- Evaluation Methods in Various Fields
- Smart Grid Security and Resilience
- Hand Gesture Recognition Systems
- Frequency Control in Power Systems
- Power Quality and Harmonics
- Wind Turbine Control Systems
- Infrastructure Resilience and Vulnerability Analysis
- Optimal Power Flow Distribution
- Advanced Computing and Algorithms
- HVDC Systems and Fault Protection
- Extenics and Innovation Methods
- Tactile and Sensory Interactions
- Gene Regulatory Network Analysis
- Power System Optimization and Stability
- Stability and Controllability of Differential Equations
- Conducting polymers and applications
- Geoscience and Mining Technology
- Network Security and Intrusion Detection
- Bioinformatics and Genomic Networks
- Multilevel Inverters and Converters
- Traffic control and management
Hunan City University
2019-2023
Hunan University
2017-2020
Hangzhou Dianzi University
2009-2020
Hebei University of Engineering
2009-2020
Hong Kong Polytechnic University
2010
Robotics Research (United States)
2009
The ever-growing requirement for reliability and quality of power supply suggests to enable self-healing features smart distribution network using intelligent communication control. In this article, a concept fully decentralized multi-agent system (FDMAS) automation is proposed build unified restoration service framework with generators (DGs), where an FDMAS interaction mechanism designed establishing reduced model which can significantly reduce the computational dimensions restoration....
Abstract Betweenness centrality is an indicator of a node’s in network. It equal to the number shortest paths from all vertices others that pass through node. Most real-world large networks display hierarchical community structure, and their betweenness computation possesses rather high complexity. Here we propose new decomposition approach speed up complex networks. The advantage this method its effective utilization local structural information community. presented can significantly...
This article proposes an unbalanced voltage compensation method for a dispersed wind farm (DWF) by cooperating permanent magnetic synchronous generators (PMSGs) with star-connected cascaded H-bridges (CHB) static compensator (STATCOM). The topology of typical DWF is given and the mathematical models CHB-STATCOM PMSG inverter are established to show that grid can be suppressed controlling their virtual negative-sequence output admittance (NSOA). relationship between maximum phase dc...
The traditional infrastructure in power system is undergoing a transition to the Smart Grid, which communication network and grid will be integrated into cyber-physical (CPPS). Although topological analysis reveals mechanism of cascading failure between two networks, it ignores control redundancy standby lines from grid. robustness CPPS requires more comprehensive model analyze behavior reality. Here, we propose with one-to-multiple interdependency relevant theoretical framework failure. In...
An on-line PID parameter optimization control for the wind power generation system based on a genetic algorithm is proposed in this paper. Firstly, anti-saturation strategy involved with considering instability and complexity of source. Further, introduced an parameters. The simulation studies are carried out model power, using MATLAB system. It demonstrated that can not only solve integral saturation, but also suppress harmonics output waveform enhance factor
The integration of distributed generations (DGs) is transforming the traditional radial single-source distribution system into a complex multi-source one which requires its related protection able to maintain proper coordination under bidirectional power flow conditions. Although conventional backup methods are effective up certain level DG penetration, they incompetent for higher service demands such as high penetration and protective rapidity. To deal with problem, fast reliable strategy...
Abstract The threat of a malicious attack is one the major security problems in complex networks. Resilience system-level self-adjusting ability network to retain its basic functionality and recover rapidly from disruptions. Despite numerous heuristic enhancement methods, there research gap maximizing resilience: current methods are designed immunize vital nodes or modify specific onion-like structure cannot maximize resilience theoretically via structure. Here we map networks onto physical...
Harmonics in microgrids have attracted intensive power quality concern. It is analyzed this paper that both currents the voltage-controlled DG inverter side and main grid are easily involved harmonic distortion due to nonlinear loads background harmonics. To deal with issue, a cooperative operation strategy for inverters reactor-integrated hybrid active filter (RIHAF) proposed based on an integrated transformer-structured grid-connected microgrid. First, purpose of cost reduction covering...
As an important research direction of human–computer interaction technology, gesture recognition is the key to realizing sign language translation. To improve accuracy recognition, a new method based on four channel surface electromyography (sEMG) signals proposed. First, S-transform applied sEMG enhance time-frequency detail characteristics signals. Then, multiscale singular value decomposition multiple matrix output obtain joint features with better robustness. The corresponding...
To ensure safe and reliable operation, the ability to ride through various disturbances is vital for a microgrid with multi-inverters. As voltage frequency support comes from power-electronic-based inverters, it necessary find proper control strategy improve rejection of DG inverter against disturbances. In this regard, paper proposes new distributed secondary approach islanded microgrids, in which main purpose remove deviation under droop method better disturbance performance. Unlike many...
In view of complexity the business websites and fuzziness quality evaluation, AHP-based multi-level fuzzy comprehensive evaluation become advantage model for website assessment. The core computing Fuzzy Evaluation is membership conversion, however, conversion way at present has a problem redundancy, that is, redundant data which no value to objective classification in memberships indicators used calculate membership. oder obtain method isn't affected by interference data, we use...
In this paper, a control architecture to coordinate DG inverters and series-LC-filtered hybrid active filter (HAF) is proposed impede the current harmonics from flowing into grid simultaneously. First, main circuit topology for presented, which contains group of units, transformer interfacing micro-grid HAF. Secondly, rejection (HRC) incorporated voltage-controlled nonlinear loads. Moreover, small-capacity Series-LC-Filtered HAF connected point common coupling (PCC). The LC filtering branch...
In an airborne passive radar, multipath (MP) clutter, which is caused by MP signals contained in the contaminated reference signal, degrades space-time adaptive processing (STAP) performance. The clutter suppression algorithm before STAP can mitigate influence of impure signals. However, performances existing methods deteriorate when intrinsic motion (ICM) exists because sparse model disturbed. To eliminate impacts ICM on suppression, a joint optimization developed for radar. Firstly,...
This paper designs a proportional control system for EMG(electromyography) prosthetic hand. The signal energy of SEMG(surface electromyography) is used the feature value, and five motion patterns hand are identified by using pattern classification binary tree. Moreover, multi-channel signals SEMG weighted to obtain coefficient which could drive DC motors PWM realize velocity control. experimental results indicate that can effectively velocity.
In this paper, index distinguishable weight, effective value and comparable of relative to samples are defined. The conversion from single-index measure multi-index comprehensive is also proposed. Unascertained model multi- hierarchy appraisement built up used in mechanical process plans.