Open AccessAnalysis of Wind Farm Synchronization Impacted by Short Circuit of Grid Fault
Author(s) -
Nan Feng,
Yuanjing Feng,
Yi Yin Yu,
Qiang Guo,
Chuanxiu Liu
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1449/1/012017
Subject(s) - wind power , fault (geology) , induction generator , grid , microgrid , turbine , synchronization (alternating current) , electrical engineering , voltage , grid connection , electric power system , ac power , power (physics) , control theory (sociology) , engineering , computer science , topology (electrical circuits) , mathematics , geology , physics , control (management) , mechanical engineering , geometry , quantum mechanics , artificial intelligence , seismology
In order to improve operational stability of the island system after grid faults of local weak connection, a wind farm and grid power system model composed of doubly-fed induction generator is built. This paper studies the impact of faults on the wind farm output and the grid bus after the wind farm is connected to the grid, and sets three-phase short-circuit fault in wind farm synchronization. Moreover, we analysed voltage fluctuation of the wind farm connected to the grid and voltage fluctuation of grid bus, as well as changes in output frequency, active power and reactive power of the wind farm. The microgrid voltage and frequency changes are studied in island operation when the fault is removed. The research results lay the foundation for island operation when fault occurs after wind turbine is connected to the grid.