A5084790469- Advanced DC-DC Converters
- Multilevel Inverters and Converters
- Power Systems and Renewable Energy
- Microgrid Control and Optimization
- Distributed Sensor Networks and Detection Algorithms
- Image and Object Detection Techniques
- Vehicle Noise and Vibration Control
- HVDC Systems and Fault Protection
- Advanced Statistical Process Monitoring
- Engineering Applied Research
- High-Voltage Power Transmission Systems
- Silicon Carbide Semiconductor Technologies
- Power Systems and Technologies
- Anomaly Detection Techniques and Applications
- Medical Image Segmentation Techniques
- Smart Grid and Power Systems
- Scientific Research and Discoveries
- Industrial Vision Systems and Defect Detection
- Structural Health Monitoring Techniques
- Induction Heating and Inverter Technology
University of Nottingham Malaysia Campus
2023
Harbin Institute of Technology
2010-2014
Bidirectional LLC resonant DC-DC transformer (DCT) has the advantages of converter in achieving high efficiency and power density, which features soft switching regardless direction flow. Due to existence large filter capacitor, inrush current is inevitable starting process. A improved start control strategy based on phase shift proposed by analysis gain characteristics DCT. It can charge output capacitor gradually, build up voltage smoothly eliminate effectively. The performance scheme...
This paper presents a new, simple and effective edge detection algorithm based on support vector machine (SVM), because of the disadvantages in traditional image methods, such as rough edge, noise inaccurate location. Based least squares SVM with Gaussian radial basis function kernel, set new gradient operators corresponding second derivative are obtained. The experimental results indicate that proposed detector is greatly improved comparing methods.
In this paper, the operation principle of Z-source inverter is analyzed in detail. According to characteristics allowed short-shrougt zero state inverter, SPWM control method obtained by inserting fixed into SPWM. It simple and easily implemented practice. However, inductive load condition output voltage current have serious distortion affect inverting quality. The cause detail an improved proposed, which can better solve problem under load. Matlab simulation results verify that not only...
A DC-side energy dissipation device and control method for offshore wind power generation systems have been proposed, which effectively solves the imbalance caused by AC voltage drop at receiving end. The proposed circuit structure uses IGBT metal oxide varistor (MOV) to form a switching module, avoiding overvoltage problem series during turn-off process, while significantly reducing overall equipment volume. connects resistor with main through coupling transformer, reduces both ends of...
A three-stage buck power electronic transformer (PET) topology based on the LLC resonant converter is proposed. In proposed PET, high voltage stage input side a diode-clamped three-level rectifier used in reducing withstanding grade of switching devices. The isolation adopts series DC-DC converter, stress each whose main switches half voltage. It can realize soft-switching from no-load to full load, which will reduce losses and improve efficiency. low output two-level three-phase four-leg...
Out-of-Distribution (OOD) detection is of great importance especially when deploying machine learning models in an open-world setting. Outlier Exposure one the popular and effective methods for OOD detection, which utilizes auxiliary dataset outliers teaching network better representations. Moreover, Focal Loss was proposed to address problem imbalanced datasets, object related tasks, emphasizing point that ability a model varies across different classes instances, thus should lead...