国外博士论文<<风力发电系统故障分析与保护>>
This thesis focuses on the analysis of fault conditions and investigates effective faultride-through and protection schemes in the electrical systems of wind farms, for both
small-scale land and large-scale offshore systems. Two variable-speed generation
systems are considered: doubly-fed induction generators (DFIGs) and permanent
magnet synchronous generators (PMSGs) because of their popularity nowadays for
wind turbines scaling to several-MW systems. The main content of the thesis is as
follows. The protection issues of DFIGs are discussed, with a novel protection
scheme proposed. Then the analysis of protection scheme options for the fully rated
converter, direct-driven PMSGs are examined and performed with simulation
comparisons. Further, the protection schemes for wind farm collection and
transmission systems are studied in terms of voltage level, collection level − wind
farm collection grids and high-voltage transmission systems for multi-terminal DC
connected transmission systems, the so-called “Supergrid”. Throughout the thesis,
theoretical analyses of fault transient performances are detailed with
PSCAD/EMTDC simulation results for verification. Finally, the economic aspect for
possible redundant design of wind farm electrical systems is investigated based o 楼主真好，好东东，我先收藏了。 微笑不语! 好东西，必须要收藏！ 好啊，谢谢！ 谢谢~~
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