An Improved LMI-based Approach for the Design of Power System Damping Controllers

Author(s)

Bernardo, Raul T. ; Oliveira, Ricardo C. L. F. ; Dotta, Daniel

• Document type: Journal article
• Source: IFAC PAPERSONLINE; v. 51, n. 25, p. 6-pg., 2018-01-01.

Abstract

This paper presents a less conservative LMI-based method for the coordinated design of robust decentralized damping controllers in the power systems context. The algorithm results from modifications made in a previous LMI design procedure widely explored in the literature. More precisely, slack variables are introduced in the synthesis procedures to remove structural constraints on the Lyapunov matrix, potentially reducing the conservativeness inherent in this type of approach. The advantage of the proposed technique is verified in an IEEE benchmark power system application and the designed controller performance is observed with eigenvalue analyses and non-linear time domain simulations. (C) 2018, IFAC (International Federation of Automatic Control) Hosting by Elsevier Ltd. All rights reserved. (AU)

• FAPESP's process: 15/18806-7 - Synchronized phasor measurement applications for power systems with intermittent generation
• Grantee: Daniel Dotta
• Support Opportunities: Regular Research Grants
• FAPESP's process: 16/08645-9 - Interdisciplinary research activities in electric smart grids
• Grantee: João Bosco Ribeiro do Val
• Support Opportunities: Research Projects - Thematic Grants
• FAPESP's process: 17/18785-5 - Parameter-Dependent Linear Matrix Inequalities Applied to Stability Analysis and Synthesis of Controllers and Filters for Uncertain Dynamic Systems
• Grantee: Pedro Luis Dias Peres
• Support Opportunities: Regular Research Grants