Efficient Synchronization Stability Metrics for Fault Clearing
Los Alamos National Lab. (LANL), Los Alamos, NM (United States), Scott Backhaus, USDOE, Michael Chertkov, Russell W. Bent, Daniel A. Bienstock, Dvijotham Krishnamurthy · 2015
Direct methods can provide rapid screening of the dynamical security of large numbers fault and contingency scenarios by avoiding extensive time simulation. We introduce a computationally-efficient direct method based on optimization that leverages efficient cutting plane techniques. The method considers both unstable equilibrium points and the effects of additional relay tripping on dynamical security[1]. Similar to other direct methods, our approach yields conservative results for dynamical security, however, the optimization formulation potentially lends itself to the inclusion of additional constraints to reduce this conservatism.