A5068235940- Microgrid Control and Optimization
- Multilevel Inverters and Converters
- Power Systems and Renewable Energy
- Power Quality and Harmonics
- Advanced DC-DC Converters
- Advanced Battery Technologies Research
- High-Voltage Power Transmission Systems
- Electric Vehicles and Infrastructure
- Smart Grid and Power Systems
- Robotic Path Planning Algorithms
- Advanced Algorithms and Applications
- Industrial Automation and Control Systems
- Integrated Energy Systems Optimization
- Adaptive Control of Nonlinear Systems
- Advanced Sensor and Control Systems
- Smart Grid Energy Management
- Energy Harvesting in Wireless Networks
- Wireless Power Transfer Systems
- HVDC Systems and Fault Protection
- Control and Dynamics of Mobile Robots
- Power System Optimization and Stability
- Power Systems and Technologies
- Fault Detection and Control Systems
- Indoor and Outdoor Localization Technologies
- Real-time simulation and control systems
University of Macau
2019-2025
Institute of Microelectronics
2019-2024
State Grid Corporation of China (China)
2016-2024
Max Planck Institute for Biogeochemistry
2024
Beijing Friendship Hospital
2023
Capital Medical University
2023
Shanghai Electric (China)
2023
Weatherford College
2023
University of Southern California
2020
Guangxi University
2019
In this article, a second-order sliding-mode control (SOSMC) based on supertwisting controller for LC-coupling hybrid active power filter (LC-HAPF) is proposed. Among the literatures review studies, hysteresis-based current controller, which special implementation of control, usually used due to its simplicity, robustness, and good dynamic performance reference tracking. However, it generates nonfixed switching frequency filter, leads undesirable harmonics problem. The proposed SOSMC ensures...
The hybrid static synchronous compensator (hybrid-STATCOM) is characterized by a wide compensation range and low dc-link voltage, which cost-effective reactive power for medium voltage level application. However, the coupling part of hybrid-STATCOM time-varying, its system model nonlinear, causes great challenge controller design. This letter proposes model-free reinforcement learning (RL) based sliding mode control (RL-SMC), provides inverter as action to compensate load harmonic. proposed...
Compared with the conventional active power filter, thyristor-controlled <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">LC</i> -coupling hybrid filter (TC -HAPF) has a distinct characteristics of low dc-link operating voltage, which can lower system and operational costs in medium-voltage-level system. It also wider range than filter. Besides that, TC -HAPF provide reactive, harmonic, unbalanced powers compensation simultaneously. In this...
A finite-set model predictive control (FS-MPC) with coupling capacitor voltage observer scheme is proposed for thyristor-controlled <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">LC</i> -coupling hybrid active power filter (TC -HAPF) in this article. It ensures the fast transient response, low steady-state error, and good robustness under both inductive capacitive load situations. Generally, implementation of FS-MPC TC -HAPF requires sensing...
In this article, a deadbeat current controller for an LC-coupling hybrid active power filter (LC-HAPF) is proposed, which can track with the reference compensation low steady-state error and fast dynamic response. Moreover, it lead LC-HAPF to be operating at fixed switching frequency output ripples, thus reducing size of filtering circuit. First all, mathematical model deduced based on its single-phase equivalent Then, closed-loop control block diagram s-domain proposed built. After that,...
Compared with conductive charging, wireless inductive-power-transfer (IPT) charging exhibits higher potential as it avoids physical contact and provides convenient user experience. Regrettably, is challenging for IPT converters to comply the constant current (CC) voltage (CV) profiles, while optimizing power efficiency. To achieve such goals, existing can apply multistage converter, dual side, or variable frequency modulation feedback communication. However, applying converter increases cost...
The consistency among lithium-ion battery pack is an important factor affecting their performance. In order to investigate the evolutions and influencing factors from statistics point of view, long-term data two trolley buses are collected. Two parameters including internal resistance open-circuit voltage (OCV) chosen describe in study. mathematical relationship between OCV standard deviation after a period time intimal with polynomial model established. It proved that error within 6%....
In this article, a vector proportional-integral (VPI) current controller for the LC-coupling hybrid active power (LC-HAPF) with ideally zero steady-state error, optimal transient response, and good robustness is proposed. First, transfer function of proposed VPI introduced, its parameter design obtaining response discussed. Second, detailed analysis controller, including system variation, distorted grid voltage, frequency variation conditions, Third, digital implementation method an overall...
A reduced wide-temperature-range electro-thermal model, which is based on the frequency-dependent equation, presented and validated under different frequencies temperatures. The temperature dependence of resistances capacitances in a wide range proposed. In contrast to state-of-the-art models, identification for thermal parameters, are with very small error, does not require expensive equipment, like calorimeter free from challenges their installations. Simulation results exhibit good...
Compared with the conventional active power filter (APF), static var compensator coupling hybrid (SVC-HAPF) has distinct characteristics of low DC-link operating voltage, which can lower system and operational costs.It also a wider range than (HAPF).In this paper, harmonic state-space (HSS) modeling is firstly proposed to address nonlinearity issue SVC-HAPF.The HSS based SVC-HAPF model linear time-invariant (LTI), enables optimal control techniques.Then, matrix inequality (LMI) H ∞ design...
In this article, a second-order sliding mode observer (SOSMO)-based controller (SOSMC) for the thyristor-controlled <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">LC</i> -coupling hybrid active power filter (TCLC-HAPF) is proposed. The proposed SOSMO-based SOSMC ensures TCLC-HAPF low steady-state error, fast dynamic response, fixed switching frequency, and good system robustness under parameter variation nonideal grid conditions. First,...
Firefighters' high-intensity training often leads to injuries in the musculoskeletal system. Studies have found that these system may contribute poor psychological issues. At same time, low well-being increases risk of injuries, illness, and mortality. According research reports, firefighters generally a good state. So this study aims survey analyze training-related states firefighting rescue personnel Beijing. This cross-sectional employed questionnaire gather data from total 214 certain...