电网技术2016，Vol.40Issue(5)：1415-1421,7.DOI:10.13335/j.1000-3673.pst.2016.05.018
偏远地区风电场的并网谐振现象分析
Analysis on Grid-Connected Resonance of Wind Farm in Remote Areas
唐振东 1杨洪耕 1马晓阳 1谭洋洋1
作者信息
- 1. 四川大学 电气信息学院，四川省 成都市 610065
- 折叠
摘要
Abstract
ABSTRACT:Aiming at LCL filter resistance burning accident easily caused by grid-connected resonance of wind farms, a modal analysis method based on element resonance sensitivity was put forward. Grid structure of grid-connected system is weak in remote areas, and its transmission line is usually quite long. Influence of distributed capacitances of long lines should not be ignored. Distributed parameter model of transmission line was established, and its impedance characteristics were analyzed. Then modal analysis method was used to analyze resonance participation factor of every node and every element’s sensitivity of wind farm grid-connected system. Finally, simulation model based on actual parameters of a wind farm was constructed. Compared with measured data, correctness of modal analysis results was verified. By introducing element sensitivity concept, the principle that transmission line length has influence on grid-connected resonance is revealed, and the problems mentioned should be paid much attention to for construction and planning of wind farms.关键词
模态分析/偏远风电场/并网谐振/分布参数模型/元件灵敏度Key words
modal analysis/remote wind farms/grid-connected resonance/distributed parameter model/element sensitivity分类
信息技术与安全科学引用本文复制引用
唐振东,杨洪耕,马晓阳,谭洋洋..偏远地区风电场的并网谐振现象分析[J].电网技术,2016,40(5):1415-1421,7.
