500 kV Short-Circuit Current Control Strategy in the Initial Operation Stage of East China Grid UHV AC Transmission Project
In recent years,UHV AC/DC hybrid power transmission grid has been constructing in East China,with 1000 kV UHV AC transmission lines connecting Shanghai,Jiangsu,Zhejiang,Anhui and Fujian power grid,and with multi-circuit UHV DC connecting East China Grid and Central China Grid.Adjustment of grid structure and access of new power sources are causing changes in short-circuit current control strategy for East China Grid.This paper briefly introduces short-circuit current calculation method for East China Grid,and through calculation it proposes preliminary short-circuit current control strategy for East China Grid in the next one or two years.
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