MATLAB/SIMULINK Based Model of Single- Machine Infinite-Bus with TCSC for Stability Studies and Tuning Employing GA

With constraints on data availability and for study of power system stability it is adequate to model the synchronous generator with field circuit and one equivalent damper on q-axis known as the model 1.1. This paper presents a systematic procedure for modelling and simulation of a single-machine infinite-bus power system installed with a thyristor controlled series compensator (TCSC) where the synchronous generator is represented by model 1.1, so that impact of TCSC on power system stability can be more reasonably evaluated. The model of the example power system is developed using MATLAB/SIMULINK which can be can be used for teaching the power system stability phenomena, and also for research works especially to develop generator controllers using advanced technologies. Further, the parameters of the TCSC controller are optimized using genetic algorithm. The non-linear simulation results are presented to validate the effectiveness of the proposed approach. Keywords—Genetic algorithm, MATLAB/SIMULINK, modelling and simulation, power system stability, single-machine infinite-bus power system, thyristor controlled series compensator. NOMENCLATURE

[1]  Haifeng Wang,et al.  A unified model for the analysis of FACTS devices in damping power system oscillations. III. Unified power flow controller , 2000 .

[2]  M. A. Abido,et al.  Coordinated design of a PSS and an SVC-based controller to enhance power system stability , 2003 .

[3]  H. F. Wang,et al.  Phillips-Heffron model of power systems installed with STATCOM and applications , 1999 .

[4]  Goldberg,et al.  Genetic algorithms , 1993, Robust Control Systems with Genetic Algorithms.

[5]  Sidhartha Panda,et al.  Modelling, simulation and optimal tuning of TCSC controller , 2007 .

[6]  K. R. Padiyar,et al.  Power system dynamics : stability and control , 1996 .

[7]  Masayuki Yamamura,et al.  A Genetic Algorithm for Function Optimization , 2002 .

[8]  M. A. Abido,et al.  Robust coordinated design of excitation and TCSC-based stabilizers using genetic algorithms , 2004 .

[9]  David E. Goldberg,et al.  Genetic Algorithms in Search Optimization and Machine Learning , 1988 .

[10]  Sidhartha Panda,et al.  Thyristor Controlled Series Compensator-based Controller Design Employing Genetic Algorithm : A Comparative Study , 2007 .

[11]  Charles Concordia,et al.  Concepts of Synchronous Machine Stability as Affected by Excitation Control , 1969 .

[12]  H. F. Wang,et al.  A unified model for the analysis of FACTS devices in damping power system oscillations. I. Single-machine infinite-bus power systems , 1997 .

[13]  J.J. Shea,et al.  Understanding FACTS-concepts and technology of flexible AC transmission systems [Book Review] , 2002, IEEE Electrical Insulation Magazine.

[14]  Stephen A. Sebo,et al.  Thyristor-Based FACTS Controllers for Electrical Transmission Systems , 2002 .