An extension of reduced disjunctive model for multi-stage security-constrained transmission expansion planning

This letter presents an extension of reduced disjunctive model to consider N-1 criterion in multi-stage transmission expansion planning (TEP). This extension is realized by exactly lin-earizing nonlinear terms induced by N-1 contingency constraints. Compared with the traditional approach, the extended RDM reduces the number of binary variables and constraints. Numerical results of three test systems indicate that the proposed approach significantly improves the computational performance without sacrificing the optimality of TEP problem.