An algorithm for computerized automatic tuning of power system stabilizers

Autor(es)

de Oliveira, Ricardo V. ^[1] ; Ramos, Rodrigo A. ^[2] ; Bretas, Newton G. ^[2]

Afiliação do(s) autor(es)

^[1] Fed Technol Univ Parana, Electromech Engn Dept, BR-85503390 Pato Branco, PR - Brazil

^[2] Univ Sao Paulo, Dept Elect Engn, BR-13566590 Sao Carlos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: CONTROL ENGINEERING PRACTICE; v. 18, n. 1, p. 45-54, JAN 2010.
• Citações Web of Science: 13

Resumo

The main objective of this paper is to relieve the power system engineers from the burden of the complex and time-consuming process of power system stabilizer (PSS) tuning. To achieve this goal, the paper proposes an automatic process for computerized tuning of PSSs, which is based on an iterative process that uses a linear matrix inequality (LMI) solver to find the PSS parameters. It is shown in the paper that PSS tuning can be written as a search problem over a non-convex feasible set. The proposed algorithm solves this feasibility problem using an iterative LMI approach and a suitable initial condition, corresponding to a PSS designed for nominal operating conditions only (which is a quite simple task, since the required phase compensation is uniquely defined). Some knowledge about the PSS tuning is also incorporated in the algorithm through the specification of bounds defining the allowable PSS parameters. The application of the proposed algorithm to a benchmark test system and the nonlinear simulation of the resulting closed-loop models demonstrate the efficiency of this algorithm. (C) 2009 Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 04/04672-4 - Análise e controle de sistemas elétricos de potência
• Beneficiário: Newton Geraldo Bretas
• Linha de fomento: Auxílio à Pesquisa - Temático
• Processo FAPESP: 06/05191-5 - Projeto de controladores para amortecimento de oscilações em sistemas elétricos com geração distribuída
• Beneficiário: Roman Kuiava
• Linha de fomento: Bolsas no Brasil - Doutorado