A5100640036- Microgrid Control and Optimization
- Islanding Detection in Power Systems
- High-Voltage Power Transmission Systems
- Advanced DC-DC Converters
- Analog and Mixed-Signal Circuit Design
- Multilevel Inverters and Converters
- Industrial Technology and Control Systems
- Advanced Sensor and Control Systems
- Advanced Computational Techniques and Applications
- Smart Grid and Power Systems
- Advanced Algorithms and Applications
- Embedded Systems and FPGA Design
- Power Systems and Renewable Energy
- HVDC Systems and Fault Protection
- Low-power high-performance VLSI design
- Adaptive Control of Nonlinear Systems
- Aerospace Engineering and Control Systems
- Experimental Learning in Engineering
- Advanced Memory and Neural Computing
- Wind Turbine Control Systems
- Engineering and Test Systems
- Geoscience and Mining Technology
- Engineering Education and Curriculum Development
- Industrial Automation and Control Systems
- Evaluation of Teaching Practices
National Taiwan University of Science and Technology
2018-2021
Nanyang Technological University
2020
Shanghai Center for Brain Science and Brain-Inspired Technology
2019
Fudan University
2019
Inner Mongolia Electric Power (China)
2018
Baogang Group (China)
2017
North China Electric Power University
2014
Jilin University
2012
Tianjin University
2009
Southwest University of Science and Technology
2007
Microgrid (MG) usually operates in medium/low-voltage systems, where the line impedance parameters are mainly resistive, and traditional P-f/Q-U droop control is no longer applicable. When virtual complex method adopted, resistance component of can be counteracted by a negative resistance. Unfortunately, improper design will result an unstable system due to problem parameter drift estimation error. According characteristics off-grid MG with medium/low voltage, P-U/Q-f adopted this study,...
Because a single-phase inverter has power coupling between the dc bus and ac side, always requires large electrolytic capacitors for decoupling. Although active decoupling circuit can restrain ripple voltage with twice fundamental frequency on reduce required capacitance, previous research works mainly focused of an ideal grid, just decoupled frequency. This study analyzes in nonideal designs novel method multiharmonic bus. By modifying reference values series split-capacitors, system...
This article proposes an online-trained adaptive fuzzy-neural-network power decoupling (AFNNPD) strategy for a virtual synchronous generator (VSG) control in micro-grid (MG). First, the mechanism of coupling VSG MG is analyzed, and system dynamic model proposed method derived. Then, total sliding-mode (TSMC) designed with characteristics strong robustness fast response. Moreover, (AFNN) to mimic TSMC law relaxing requirement detail information TSMC. In addition, tuning laws network...
This study analyzes the power coupling in single-phase grid-connected system and designs a novel decoupling method for restraining ripple voltage on dc bus. First, phenomena of under non-ideal grid, circuits with an active are derived. By introducing ratio factor between bus capacitors, ability proposed can be improved. In order to achieve accurate decoupling, neural filter is adopted clearly identifying level extracting addition, total sliding-mode controller further designed control...
Abstract The Boeing Corporation conducts an A.D. Welliver summer fellowship program for engineering educators. This article describes the lessons learned by 1998 Fellows. These include increasing emphasis on cost, communications and continuous learning, modifying faculty promotion guidelines to honor collaboration in teaching research, collaborating with industry exit criteria. Eventually, has become a partner educational process. Fellows unanimously agreed that Program was valuable experience.
A slew-rate-controlled output driver having a constant transition time irrespective of environmental variations is described in this brief. The proposed employs capacitive feedback between the and input to allow its independent process, voltage, temperature load variations. was designed fabricated using 0.13-mum CMOS process. According our experimental results, normalized variation on due PVT improved by 74%-80% as compared conventional driver. comparison result also indicates that change...
A slew rate-controlled output driver using capacitive feedback is described in this paper. To make a constant transition time the driver, current source used with between and gate of driver. The capacitor path gives which connects during driver's period to sustain rate. proposed was designed 0.13 /spl mu/m CMOS process. According our evaluation, variation due PVT variations improved by 92% compared conventional load 10/spl sim/100 pF typical process, voltage temperature condition also as much 467 %.
This study analyzes the power coupling in a weak grid, and designs novel decoupling method for with multi harmonic frequency on dc bus. By modifying reference values of series split-capacitors, system control structure can be simplified, multi-frequency-coupled realized. Moreover, notch filter is introduced into voltage feedback path further reducing influence inverter output current quality. The proposed achieve objective decoupling, even under power-grid environment. Finally, numerical...
Transmission line route reflects the geospatial constraints on grid. Environmental factors affecting power transmission design are diverse and complex. This paper studies method based GIS (Geographic Information System) Dijkstra algorithm. Establish environmental hierarchical model of using IAHP gridded map obtain each grid’s weight. Take into account weight number corner in order to build branch weights After that optimal can be obtained
This paper first introduces the double-fed wind power generation systempsilas basic theory, and builds mathematical model of generator in rotary coordinate system. In order to deal with strong coupling problems motor control field, vector technology is researched idea dual-fed stator-flux-oriented strategy presented by application control. Based on that theory characteristics generatorpsilas grid-connected control, a dual-channel double-loop method current inner-loop outer-loop presented....
In this paper, a unified distributed control framework is proposed for networked microgrids (NMGs), which designs to operate NMGs in islanded, grid-connected and transition modes. The divided into two layers, i.e. microgrid (MG) layer, NMG layer. the MG typical primary droop secondary generators (DGs) are designed. there three hierarchies: A based each MG; among MGs; tertiary mode-supervisory control, manages types four operation conditions. will achieve following objectives: i)...
The unmanned multi-ducted-fan flying vehicle is a kind of novel multi-purpose platform for future transportation. In this paper, flight dynamics model established based on aerodynamics principles and rigid body theory. To make the controller multi-ducted fan more robust, double closed loop PID put forward with non-smooth parameters optimization method. Numerical simulation field experimental results demonstrate that has good performance inner-loop attitude control in flight.
The traditional off-line measurement method for parameters of transmission line must deploy the equipment and personnel at both line. earth loop has effect on result, especially winter soil is frozen. To this end, based PMU proposed. Using synchronized phasor measurement, can eliminate effects measure online. In paper, effectiveness verified by simulation example actual data. sample precision all measured electric quantities are determined sensitivity analysis. results show that existing...