A5100682645- Magnetic Properties and Applications
- Industrial Technology and Control Systems
- Magnetic Bearings and Levitation Dynamics
- Electric Motor Design and Analysis
- Machine Fault Diagnosis Techniques
- Advanced Sensor and Control Systems
- High voltage insulation and dielectric phenomena
- Power Systems Fault Detection
- Non-Destructive Testing Techniques
- Power Transformer Diagnostics and Insulation
- Advanced Algorithms and Applications
- Power Systems and Renewable Energy
- Simulation and Modeling Applications
- Product Development and Customization
- Diverse Interdisciplinary Research Innovations
- Innovation Diffusion and Forecasting
- Power Systems and Technologies
- Radio Wave Propagation Studies
- Gear and Bearing Dynamics Analysis
- Engineering Diagnostics and Reliability
- Organic and Molecular Conductors Research
- Inertial Sensor and Navigation
- Islanding Detection in Power Systems
- Microgrid Control and Optimization
- Iterative Learning Control Systems
Hunan University
2024
North China Electric Power University
2007-2024
China University of Mining and Technology
2018
Nanyang Technological University
2014
Ordnance Engineering College
2004-2013
Chengdu Medical College
2008
China National Chemical Corporation (China)
2007
Guangdong Ocean University
2006
Hua Hong Semiconductor (China)
2003
Wind power parallel operation is an effective way to realize the large scale use of wind power, but fluctuations output from units may have great influence on quality, hence a new method smoothing and capacity optimized allocation based hybrid energy storage technology proposed in terms uncontrollable unexpected characteristics speed farms. First, traditional Inertial Filter introduced relationship between time constant, its effect are analyzed combined with Proportional Integral...
Abstract The paper presents a fault region identification method for the active distribution network (ADN) with limited PMU. First, PMU configuration and division strategies are proposed based on topology. Next, difference in three-phase current variations between normal regions of ADN is analyzed. A multi-dimensional state monitoring matrix built using measured data. spectral norm ratio coefficient constructed 2-norm to lower complexity quantify changes before after occurs each region....
This paper mainly focuses on the impact of inclined static air gap eccentricity (ISAGE) electromagnetic characteristics and mechanical performances (vibration, deformation, strain stress). Considering different ISAGE fault types in theoretical finite element analysis (FEA) model synchronous generators, effects intersection position rotor center axis stator axis, angle, combination previous two MFD, phase current radial magnetic pulling per unit area (MPPUA) are analyzed compared. Then, based...
The static air gap eccentricity is one of the prevalent faults in permanent magnet synchronous generators. In previous studies, variation magnetic flux density, stator current and vibration have been studied mostly. However, temperature characteristic winding insulation under 3D fault rarely investigated. As a supplement, this paper comprehensively analyzes influence radial eccentricity, axial combined (radial eccentricity) on thermal response. whole work based not only loss core windings...
This paper documents the development of a quad-copter with indoor control scheme and navigation capability. A stabilized flying system including traditional PID controller, Raspberry Pi onboard flight computer electronic speed controller was developed to provide basic platform for quad-copter. tuning utilized optimize performance. In addition, RGB depth cameras other sensors were deployed enable remote semi-autonomous control.
This paper presents a designed experimental simulation scheme for dynamic air gap eccentricity (DAGE) faults in permanent magnet synchronous generator (PMSG), along with the testing of their electromechanical characteristics. Unlike previous studies, this proposes and applies an device setting that enables accurate convenient calibration DAGE fault degree, offering novel solution practical simulation. The unit measures characteristics PMSG before after fault, taking into account influence...
Static air gap eccentricity (SAGE) is a common mechanical fault in permanent magnet synchronous generators (PMSG). Currently, detection mainly based on inductance, back electromotive force, stator vibration, electromagnetic torque, etc. Differently from the other research, this paper focuses unbalanced magnetic pull (UMP) characteristic and response rotor to find approach for diagnosing SAEG reveal dangerous positions of rotor, also taking into account load changes. A 5Kw PMSG with 10 pole...
This paper presents a completed investigation on the electromagnetic force characteristics of stator end windings under inter-turn short circuit (SISC) conditions. Not only single SISC or static air-gap eccentricity (SAGE) case are considered, but also takes combined impact and SAGE condition into account at same time. The entire work depends theoretical analysis finite element method (FEM) verification. It is found that will be increased tremendously when happens, particularly 2nd, 4th 6th...
The vibration of generators end windings in rotor inter turn short circuit different (RISC) locations is studied this article. Firstly., the influences on air gap magnetic flux density (MFD) are investigated. On basis., electromagnetic forces (EF) obtained. Then, theoretical analysis model validated through finite element (FEA) and experiment. It shows that RISC fault will bring additional (50Hz, 150Hz, 200Hz) harmonics to EF. In addition, winding increase as location gets distant from large tooth.
Retracted.