Challenging Transmission Level Test Cases for Power System Studies

Abstract

Several test cases derived by modifying the loading and tightening certain constraints in the IEEE test cases are presented in this collection. With many local optima and large optimality gaps, these cases challenge a variety of state-of-the-art algorithms. Moreover couple of randomly constructed small (three- to five-bus) OPF test cases with connected and disconnected feasible spaces are added to this collection which can challenge new algorithms presented for solving the OPF problem. More information can be found in the following reference. M. R. Narimani, D. K. Molzahn, D. Wu, and M. L. Crow, "Empirical Investigation of Non-Convexities in Optimal Power Flow Problems," American Control Conference, Milwaukee, WI, USA, June 2018.