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Increasing penetration of wind and renewable generation poses significantchallenges to the power system operations and reliability. This paper considersthe real-time optimal transmission switching (OTS) problem for determining thegeneration dispatch and network topology that can account for uncertain energyresources. To efficiently solve the resultant two-stage stochastic program, wepropose a tractable linear decision rule (LDR) based approximation solutionthat can eliminate the uncertainty variables and lead to fixed number ofconstraints. The proposed LDR approach can guarantee feasibility, andsignificantly reduces the computational complexity of existing approaches thatgrows with the number of randomly generated samples of uncertainty. Numericalstudies on IEEE test cases demonstrate the high approximation accuracy of theproposed LDR solution and its computational efficiency for real-time OTSimplementations.

Transmission Switching Under Wind Uncertainty Using Linear Decision Rules