A5101958099- HVDC Systems and Fault Protection
- Microgrid Control and Optimization
- High-Voltage Power Transmission Systems
- Power System Optimization and Stability
- High Entropy Alloys Studies
- Neural Networks and Reservoir Computing
- Frequency Control in Power Systems
- Hydrogen embrittlement and corrosion behaviors in metals
- Corrosion Behavior and Inhibition
- High-Temperature Coating Behaviors
- Adaptive Dynamic Programming Control
- Neural Networks Stability and Synchronization
- Metal and Thin Film Mechanics
- Optimal Power Flow Distribution
- Smart Grid Energy Management
- Advanced Adaptive Filtering Techniques
- Stability and Control of Uncertain Systems
- Neural Networks and Applications
- Distributed Control Multi-Agent Systems
- Electromagnetic Simulation and Numerical Methods
- Advanced Computational Techniques and Applications
- Fault Detection and Control Systems
- Direction-of-Arrival Estimation Techniques
- Advanced Measurement and Detection Methods
- Additive Manufacturing Materials and Processes
Shanghai Changzheng Hospital
2024-2025
Yangzhou University
2025
Ministry of Agriculture and Rural Affairs
2025
Shanghai University
2024
Tsinghua Sichuan Energy Internet Research Institute
2024
Tsinghua University
2020-2024
Northeastern University
2019-2024
Laboratoire de Génie Électrique et Électronique de Paris
2015-2023
Supergrid Institute
2013-2023
Centre National de la Recherche Scientifique
2015-2023
This article addresses an adaptive fuzzy finite-time control for a class of uncertain strict-feedback nonlinear systems with backlashlike hysteresis and stochastic disturbances. At first, novel criterion semiglobally stability in probability (SGFSP) is established based on Lyapunov function method. Under the proposed criterion, scheme designed. In design process controller, command filter technique introduced to overcome problems "explosion complexity" "singularity" inhered traditional...
The authors consider a power system composed of several non-synchronous AC areas connected by multi-terminal high-voltage direct current (HVDC) grid. In this context, the propose distributed control scheme that modifies injections from different into DC grid so as to make collectively react load imbalances. This collective reaction allows each individual area downscale its primary reserves. is inspired algorithms for consensus problem extensively studied theory community. It based on...
The modular multilevel converters (MMCs) have emerged as the most suitable converter technology for HVDC applications. Besides recognized advantages over conventional voltage source converters, one of remarkable features MMC is its ability to store energy in distributed submodule capacitors. This important feature can be used mitigate fluctuations DC voltage, which inherently volatile against power disturbances compared frequency AC systems. paper proposes a novel control strategy, called...
Multi‐terminal DC systems must provide a high level of reliability and may have to support the interconnected AC grids. This can be achieved by providing AC/DC converters with dual controller combining both voltage‐droop frequency‐droop control techniques. In this article, coupling between those droops is theoretically investigated quantified, proposed corrected value parameter allows system comply TSO's requirements regards frequency grids despite unintended interaction two droops. A...
Design and test results for a fully integrated translinear tail-biting MAP error-control decoder are presented. Decoder designs have been reported various applications which make use of analog computation, mostly Viterbi-style decoders. decoders more complex, necessary components powerful iterative decoding systems such as turbo codes. Analog circuits may require less area power than digital implementations in high-speed applications. Our (8, 4) Hamming decoder, implemented an AMI 0.5-/spl...
This paper addresses the problem of sharing primary frequency control reserves among non-synchronous AC systems connected by a multi-terminal HVDC grid. We focus on scheme that modifies power injections from different areas into DC grid based remote measurements other areas' frequencies. is proposed and applied to simplified system in previous work authors. The current investigates effects delays scheme's effectiveness. study shows there generally exists maximum acceptable delay, beyond...
The Modular Multilevel Converter (MMC) represents the recent development among diverse available topologies of VSC and is allegedly most suitable solution for converters in HVDC transmissions. This paper presents an Average Value Model (AVM) MMC that still includes characteristic internal dynamics are non-existent traditional 2-level VSCs. AVM its control described linearized order to obtain a state-space model can easily be used as subsystem multi-terminal (MTDC) grids. A case study showing...
This article addresses the solution of continuous-time linear Itô stochastic systems with Markovian jumps using an online policy iteration (PI) approach grounded in Q -learning. Initially, a model-dependent offline algorithm, structured according to traditional optimal control strategies, is designed solve algebraic Riccati equation (ARE). Employing Lyapunov theory, we rigorously derive convergence PI algorithm and admissibility iterative law through mathematical analysis. represents first...
This paper proposes a comprehensive methodology for determining the converter droop settings to ensure voltage security in multi-terminal direct current (MTDC) grid. The novelty lies introduction of concept over- and under-voltage containment reserves analogy frequency AC systems. not only gives distinction contribution between converters rectifying inverting modes, but also significantly facilitates sizing necessary amount within their available headroom capacity power. In particular,...
This study systematically investigated the influence of high nitrogen (N) addition (0.205 wt.%) on microstructure and mechanical properties as-cast M42 speed steel.The results demonstrate that conventional high-nitrogen cast ingots are mainly composed martensite, retained austenite various precipitates (M 2 C, M 6 C as well MC in ingot or M(C, N) M42N ingot).The N could increase content, trigger transformation to N), favor formation at expense improve distribution uniformity macroscopic...