SUO Zhiwen,LIU Jianqin,JIANG Weiyong,et al.Research on synchronous condenser configuration of large-scale renewable energy DC transmission system[J].Electric Power Automation Equipment,2019,39(09):124-129.
SUO Zhiwen,LIU Jianqin,JIANG Weiyong,et al.Research on synchronous condenser configuration of large-scale renewable energy DC transmission system[J].Electric Power Automation Equipment,2019,39(09):124-129.DOI: 10.16081/j.epae.201909054.
Research on synchronous condenser configuration of large-scale renewable energy DC transmission system
In view of the technical requirements for suppressing transient overvoltage of power grid at sen-ding end,firstly the influencing factors of transient over-voltage of the power grid at sending end are analyzed. Then a test system of DC transmission is established,based on electromechanical transient simulation,considering distributed synchronous condenser and decentralized hierarchical configuration,the synchronous condenser configuration scheme of centralized and decentralized accessing to different voltage levels are separately proposed. Finally,by comparing different schemes,the synchronous condenser configuration suggestions for large-scale renewable energy DC transmission system are given. The simulative results show that the decentralized configuration of synchronous condenser at low voltage side of each renewable energy collecting stations can not only solve transient over-voltage problem of the sending end,but also further improve the economy.
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