Security analysis and optimization

Experiments with the interior-point method for solving large scale Optimal Power Flow problems

“…handling of discrete variables, use of limited numbers of control actions, etc.) remain also to be carefully assessed [4,5,46,47]. In addition, improved ways to analyze and visualize the results of large-scale OPF, e.g.…”

“…4 More comprehensive data sets of this system are available upon request from the project PEGASE web-page: www.fp7-pegase.eu. …”

“…Since a classical day-ahead preventive SCOPF approach would be not anymore sustainable, we foresee that the need for using an automatic adaptive optimal control scheme, and in particular a (SC)OPF in real-time, is more and more stringent. This raises the same old concerns regarding mostly the reliability and speed of such an approach [4,5]. Furthermore, in Europe there is a trend to check the security and propose coordinated control actions for a large interconnection, composed by independent power systems, in a broader way [6], which calls for tools able to deal with very large scale optimization problems, with up to hundreds of millions of variables and constraints.…”

Transient stability-constrained optimal power flow

“…(2) - (7) (11) - (20) Note that once the TTC is obtained, it is trivial to compute Available Transfer Capability (ATC) [24]. The interface flow can be either of the point-to-point or the area-to-area type.…”

“…Significant progress has been made in this area in recent years [19,20,21]. Given state-of-the-art OPF software, power engineers can perform studies for large systems with n-1 steady-state constraints in a reasonable amount of time.…”