Abstract

This paper presents a new method for the computation of phase shifter distribution factors required for adjusting the phase angles of phase shifters to control the line flows. These factors are computed usingusing the sensitivity matrix, which is tversee in- of the constant Jacobian matrix. Computation of these factors is carried out for both the base case system and the outaged system using the same-sensitivity matrix. The factors so computed are used to alleviate the line overloads leaving the economic generation schedules unaffected. In case the phase angle adjustments of the phase shifters do not reduce the line overloads completely, generation rescheduling and/ or load curtailment is proposed, thus ensuring a secure system operation. The proposed techniques are validated by testing on different test systems.

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