A5101971258- Multilevel Inverters and Converters
- Piezoelectric Actuators and Control
- Iterative Learning Control Systems
- Microgrid Control and Optimization
- Advanced DC-DC Converters
- Seismic Performance and Analysis
- Microwave Engineering and Waveguides
- Structural Engineering and Vibration Analysis
- Advanced Algorithms and Applications
- Electric Motor Design and Analysis
- Electric Power Systems and Control
- Fire Detection and Safety Systems
- Magnetism in coordination complexes
- Advanced Fiber Optic Sensors
- Structural Load-Bearing Analysis
- Radiation Therapy and Dosimetry
- Photonic and Optical Devices
- Advanced Machining and Optimization Techniques
- Radiation Dose and Imaging
- Grouting, Rheology, and Soil Mechanics
- Advanced Numerical Methods in Computational Mathematics
- Hospitality and Tourism Education
- Frequency Control in Power Systems
- Fire dynamics and safety research
- Post-Communist Economic and Political Transition
Beijing University of Civil Engineering and Architecture
2023
Henan University of Science and Technology
2015-2023
KTH Royal Institute of Technology
2023
Beijing Jiaotong University
2022
Shanghai Maritime University
2022
University of South China
2022
Sichuan International Studies University
2022
Qinghai University
2018
Dalian University of Technology
2015
Dalian University
2015
The outer banks of meadow-type meandering river bends in the source zone Yellow River are especially vulnerable to bank failure. This study aims understand how vegetation affects stability and mechanism failure, via a prediction width collapsed block small rivers through proposed equilibrium as well field sampling. Soil properties were surveyed at four sites near riverbank 2013–2016. It was found that failed blocks had, on average, dimension 0.865 m (width) by 0.817 (thickness) 2.228...
The wide applications of vector control improve the high-accuracy performance alternating current (AC) adjustable speed system. In order to obverse full-order flux and calculate real-time speed, this article introduces motor T equivalent circuit build a observer model, where variables stator rotor are adopted. Model reference adaptive is introduced AC observer. output used as feedback matrix. calculation method which part inputs observation, applied realize control. concept characteristic...
Aiming at the needs of ultrasonic motor's motion control system, generalized predictive iterative learning (GPILC) strategy is constructed by integrating and control. By designing 2D objective function with information previous process, it attempts to integrate methods such as multi-step rolling optimization into law improve effect. An effective design method proposed. Based on prediction model, differential carried out derive GPILC law. Then, based nonlinear Hammerstein model motor, an...
Pulse-width modulation rectifier plays an important role in the field of electric energy conversion. It has many advantages such as grid side current sinusoidal, bidirectional flow, and unit power factor. In order to improve factor, this article proposes a new control method for three-phase pulse-width rectifier, that is, direct strategy based on virtual flux orientation. The original concept AC motor stator is introduced into proposed scheme so remove voltage sampling circuit. instantaneous...
With analysis on double PWM structure though system's energy flow theory, active power and reactive of rectifier are controlled by model predictive algorithm. System adopts the method combine dynamic power's compensation with static for system in order to reduce error. A new algorithm is proposed designs a controller replace PI voltage loop, which can restrain fluctuation DC bus when load suddenly varies reduces DC-link's capacity capacitance. As inverter side, uses rotor flux linkage...
The conventional pulse-width modulation rectifier has the low power factor and more sensors to detect voltage current of alternating side.The traditional direct control method possesses defect unfixed switching frequency.A new based on three-phase source with high is proposed in this paper.With analysis formation mechanism switch table, stationary coordinate divided into 12 vectors optimize input voltages.Virtual flux estimator introduced replace sensors.Instantaneous theory used calculate...
On the basis of traffic survey, an improved simulation model is established by using VISSIM to simulate running operation Beijing West Road in Nanjing, China. By considering evaluation real situation, two optimized solutions are proposed relieve congestion which caused tidal phenomenon. A built, with help from solutions. Data about travel time, queue length, vehicular delay, stop delay and number stops generated. Via analyzing comparing these significant indicators, results show that...