A5022219960- Physics of Superconductivity and Magnetism
- Superconducting Materials and Applications
- Smart Grid and Power Systems
- High-Voltage Power Transmission Systems
- HVDC Systems and Fault Protection
- Power Systems and Renewable Energy
- Power Systems and Technologies
- Frequency Control in Power Systems
- Magnetic Properties and Applications
- Magnetic confinement fusion research
- Electric Motor Design and Analysis
- Electromagnetic Launch and Propulsion Technology
- Magnetic Bearings and Levitation Dynamics
- Power System Optimization and Stability
- Electric Power Systems and Control
- Optimal Power Flow Distribution
- Geoscience and Mining Technology
- Sensorless Control of Electric Motors
- Particle accelerators and beam dynamics
- Magnetic Properties of Alloys
Shandong University
2024
Electric Power Research Institute
2012
China Southern Power Grid (China)
2012
Huazhong University of Science and Technology
2011
A project for a 30 m, 35 kV /2 kArms, 3 phase, warm dielectric HTS power cable system is underway in China. This will be installed the China Southern Power Grid at Puji substation Kunming, Yunan province, 2004. We have carried out series of experiments to investigate possible winding angles and layer configurations conductor with Ag sheathed Bi-2223 tapes, different LN2 cooling mechanisms, termination configurations, fabrication techniques. For better understanding basics an practising new...
The magnetization state of a magnetic core can be adjusted and controlled by dc bias coil. A significant voltage may induced on the coil if is coupled with carrying alternative current through core. In some practical applications, this cause problems. We designed new type orthogonally configured structure to reduce or eliminate voltage. design, C-shape iron-core was assembled closed iron-core. set gap wound working current, while Under configuration, impedance could applying different...
Condition monitoring and management system (CMMS) for power transmission distribution equipments is an important part of smart grid. This paper addresses issues relating to the techniques CMMS its application in Yunnan Power Grid. After introducing basic concepts essential characters Intelligent CMMS, many technological challenging it are discussed. And engineering research cases Grid develop a fully perceptive also introduced detail, including Data Supervise System (DSS), some original...
For the magnet used in power apparatus, inductance is an important parameter which may change input-output characteristic of apparatus. In research high temperature superconducting (HTS) energy storage system and other electric we found difference magnet's between normal state state. this paper, electromagnetic models Bi2223/Ag tape windings are established firstly. Based on simulation analysis measured results, reason variation HTS has been clarified. The regularity pancake researched, new...
This paper describes the analysis procedure and FEM model considering parallel effects of stress thermal problem coupled with electromagnetic field a 10 MJ Superconducting Magnetic Energy Storage (SMES) magnet. Since processes in most analyses are very simplified or even not considered, general aim this was to create, solve, validate numerical phenomena that occur within an SMES A finite element has been developed solve coupling magnetic field, stress, problems. Temperature distribution...
This paper aims to study the feasibility of improving pulsed current output by using High temperature superconducting (HTS) air-core transformer. Based on theoretical analysis, simulations are done. Results indicate that HTS pulse transformer can magnify magnitude and accelerate velocity discharge. However, when a series inductor modules use same one transformer, residual may influence discharging waveform. To eliminate current, self-coupling model is proposed. The simulated experimental...
For solving the dynamic instability problem of Yunnan Province Power System (YNPS) and South China Interconnected (SCIPS), Lubuge hydropower plant was chosen to install a power system stabilizer (PSS). The philosophy set parameters PSS is provide positive damping within frequency 0.4/spl sim/1.6 HZ specially sim/1.0 be adaptive various operating conditions. Based on phase compensation root-locus method setting chosen. Further eigenvalue time domain simulation studies show that well different...