A Generic Approach for Solving Nonlinear-Discrete Security-Constrained Optimal Power Flow Problems in Large-Scale Systems

作者：Platbrood Ludovic^*; Capitanescu Florin; Merckx Christian; Crisciu Horia; Wehenkel Louis

来源：IEEE Transactions on Power Systems, 2014, 29(3): 1194-1203.

DOI：10.1109/TPWRS.2013.2289990

• Contingency filtering
• network compression
• network equivalents
• security-constrained optimal power flow

This paper proves the practicality of an iterative algorithm for solving realistic large-scale security-constrained optimal power flow (SCOPF) problems. This algorithm is based on the combination of a contingency filtering scheme, used to identify the binding contingencies at the optimum, and a network compression method, used to reduce the complexity of the post-contingency models included in the SCOPF formulation. We show that by combining these two complementary ideas, it is possible to solve in a reasonable time SCOPF problems on large power system models with a large number of contingencies. Unlike most results reported for large-scale SCOPF problems, our algorithm uses a nonlinear AC network model in both pre-contingency and post-contingency states, optimizes both active/reactive powers flows jointly, and treats the discrete variables. The proposed algorithm is implemented with state-of-the-art solvers and applied to two systems: a national grid with 2563 buses and 1297 contingencies, and a model of the European transmission network with 9241 buses and 12 000 contingencies.

• 出版日期2014-5