A5038841781- HVDC Systems and Fault Protection
- Power System Optimization and Stability
- High-Voltage Power Transmission Systems
- Power Systems and Renewable Energy
- Frequency Control in Power Systems
- Optimal Power Flow Distribution
Hubei University of Technology
2020-2021
With the increasing scale of power systems and large-scale application new energy technologies, planning construction future grids stable operation face severe challenges. Among them, transient stability short-circuit current are two key factors that determine safe a system. However, in traditional power-grid planning, there is little research on strategy coordinating solution between stability, problems forecasts. Based perspective this study proposes method for optimal system's...
With the construction and development of ultra-high voltage (UHV) power grids, large-scale, long-distance transmission has become common. A failure connecting line between sending-end grid receiving-end will cause a large-scale shortage frequency drop in grid, which can result collapse. Presently, under-frequency load shedding (UFLS) is adopted for solving control problem emergency conditions, easily large losses. In this context, coordination optimal strategy proposed, combines mode...
As large-capacity units shift down to low-level power grids, the problems of transient stability and short-circuit current systems become increasingly prominent. The traditional control methods such as generator-tripping load-shedding can only solve one problems, but cannot fundamentally contradiction between at same time, resulting in poor grid stability. A practical strategy connecting system through impedance are studied for first time this paper a mathematical model is established with...
When a large-scale interconnected system encounters major disturbance, it will actively disassociate, and the receiving-end power grid suffer from serious shortage of active significant drop in frequency. Emergency control measures need to be taken ensure stability system. First, according different characteristics generator's primary frequency modulation, pumped storage station, low-frequency load shedding, mathematical model emergency strategy is formulated. Then, disassembly grid,...