Damping controls in electrical power systems: a LMI-based approach design

• Grant number: 07/00062-5
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: April 01, 2007
• End date: March 31, 2010
• Field of knowledge: Engineering - Electrical Engineering - Power Systems
• Principal Investigator: Rodrigo Andrade Ramos
• Grantee: Marcelo Favoretto Castoldi
• Host Institution: Escola de Engenharia de São Carlos (EESC). Universidade de São Paulo (USP). São Carlos , SP, Brazil

Abstract

This Ph.D. project aims at developing a new approach for the design of controllers to damp electromechanical oscillations in power systems. Given that these controllers must be robust against variations it the operating point of the power system, the application of a robust control technique (based on the resolution of linear matrix inequalities) is proposed for the treatment of this problem. The proposed technique innovates with regard to other existing approaches (including the ones previously developed by the candidate advisor) in the sense that it allows the use of less restrictive auxiliary functions. This feature enables the proposed approach with a potential to provide less conservative and more efficient controllers than the already existing or proposed ones. The technique developed in this Ph.D. work is predicted to be tested for the design of controllers of a Power System Stabilizer type and supplementary controllers for Flexible AC Trasmission System devices, both frequently utilized to damp electromechanical oscillations in power systems.

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

CASTOLDI, M. F.; SANCHES, D. S.; MANSOUR, M. R.; BRETAS, N. G.; RAMOS, R. A.. A hybrid algorithm to tune power oscillation dampers for FACTS devices in power systems. CONTROL ENGINEERING PRACTICE, v. 24, p. 25-32, MAR 2014. (07/00062-5)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

CASTOLDI, Marcelo Favoretto. Hybrid algorithm for damping controller design in electric power systems via genetic algorithms and gradient descent. 2011. Doctoral Thesis - Universidade de São Paulo (USP). Escola de Engenharia de São Carlos (EESC/SBD) São Carlos.