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A simplified nonlinear controller for transient stability enhancement of multimachine power systems using SSSC device
Affiliation:1. Laboratoire d’Automatique et d’Informatique Appliquée (LAIA), Département de Génie Électrique, IUT FOTSO Victor Bandjoun, Université de Dschang, B.P. 134 Bandjoun, Cameroon;2. Laboratoire d’Electronique, d’Electrotechnique et d’Automatique (LEEA), Département de Physique, Faculté des Sciences, Université de Dschang, Cameroon;3. Laboratoire des Signaux et Systèmes (LSS), CNRS, Université de Paris XI, 91192 Gif-Sur-Yvette, France;1. State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China;2. School of Electronic and Information Engineering, Liaoning Technical University, Huludao 125105, China;3. State Key Laboratory of Computer Architecture, Institute of Computing Technology, Chinese Academy of Sciences, Beijing 100190, China;1. Laboratory for Integrative and Systems Physiology, Ecole Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland;2. Molecular and Cell Biology Laboratory, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA;1. Laboratoire d''Energétique, DépartementPhysique, USTTB-FAST, B.P. E 3206 Bamako, Mali;2. Département GEII, Université Paris 13, 99 Avenue Jean Baptiste Clément, 93430 Villetaneuse, France;3. Laboratoire d''Automatique et d''Informatique Appliquée (LAIA), Département de Génie Electrique, IUT-FV Bandjoun, Université de Dschang, B.P. 134 Bandjoun, Cameroon
Abstract:In this paper, a simplified nonlinear method is proposed to enhance the transient stability of multimachine power system by using a Static Synchronous Series Compensator (SSSC). The rate of dissipation of transient energy is used to determine the additional damping provided by a SSSC. The proposed algorithm is based on the direct Lyapunov method. The simplicity of the proposed scheme and its robustness with respect to large disturbances constitute the main positive features. Simulation results in the case of 3-machines power system show the effectiveness of the proposed method under large disturbances (3-phase and single phase short-circuits).
Keywords:Power system  Transient stability  FACTS  SSSC  DFIG  Lyapunov theory
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