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In this letter, the effects of line compensation of an single-machine infinite-bus power system using fixed-capacitor thyristor-controlled reactor-type or SVC for transient stability enhancement are analyzed. In particular, a novel method for analysis of line compensation by an SVC is presented. The maximum power transfer, for line compensation by FACTS controllers can be written in the form=(1-k) where is the maximum power transfer for the uncompensated line and k is the degree of compensation. The analysis revealed that the effectiveness of the SVC for stability enhancement is increased if the degree of compensation of the line is increased.
Date of Publication: June 1998