Using trajectory sensitivity analysis to find suitable locations of series compensators for improving rotor angle stability
2014 (English)In: Electric power systems research, ISSN 0378-7796, Vol. 111, 1-8 p.Article in journal (Refereed) Published
This paper proposes an approach based on trajectory sensitivity analysis (TSA) to find most suitable placement of series compensators in the power system. The main objective is to maximize the benefit of these devices in order to enhance the rotor angle stability. This approach is formulated as a two-stage problem, whose first-stage describes prior to fault occurrence and whose second-stage represents the power system behavior involving a set of severe faults. The first-stage focuses on small signal stability, while the second-stage deals with transient stability of power system. In this vein, the trajectory sensitivities of the rotor angles of generators with respect to the reactances of transmission lines are calculated. Two equivalent rotor angles are introduced to find stability indices corresponding to the first- and the second-stage of the proposed approach. Numerical results from IEEE 10-machine 39-bus test system demonstrate the usefulness of the proposed method.
Place, publisher, year, edition, pages
2014. Vol. 111, 1-8 p.
Trajectory sensitivity analysis (TSA), Transient stability, Small signal stability, Flexible AC transmission system (FACTS) devices, Critical clearing time (CCT)
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-141262DOI: 10.1016/j.epsr.2014.01.022ISI: 000335873800001ScopusID: 2-s2.0-84894588509OAI: oai:DiVA.org:kth-141262DiVA: diva2:696022
QC 201406122014-02-122014-02-122014-10-28Bibliographically approved