A Robustness Study of Power System Stabilizers using Dynamic Modeling

• Published in: Revista IEEE América Latina Vol. 17; no. 3; pp. 513 - 519
• Main Authors: Ordaz Padilla, Luis Adolfo, Pena Gallardo, Rafael, Morales Saldana, Jorge Alberto
• Format: Journal Article
• Language: English
• Published: Los Alamitos IEEE 01.03.2019; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Biological system modeling; Computational modeling; Computer simulation; Damping; Disturbances; Dynamic models; Electric power systems; Hydroelectric Generation; IEEE transactions; Mathematical model; MISO communication; Parameter sensitivity; Power system stability; Power System Stabilizer; Robust Stability; Robustness; Stability tests; Unstructured Modeling
• ISSN: 1548-0992; 1548-0992
• DOI: 10.1109/TLA.2019.8863322

A Power System Stabilizer (PSS) is a complementary excitation controller used in the synchronous generator for damping electromechanical oscillations present in an electric power system. The PSS is a dynamic system subject to disturbances and uncertainties, which can lead to unstable system operating conditions. In this paper, a robust stability test is proposed to found the stability bounds for a family of PSS using an unstructured modeling approach. The proposed test is verified using computational simulations. The results obtained show the parameters that are more sensitive to disturbances and that may cause the system to lose stability.