Robust Tuning of Fixed-parameter Static VAR Compensator Controller for Damping Inter-area Oscillations in Power System

Abstract This article presents a method for tuning the parameters of a fixed-structure supplementary modulation controller of flexible AC transmission systems devices to enhance the damping of inter-area oscillations. The flexible AC transmission systems device considered in this work is the static VAR compensator. Conventional lead/lag structure of the supplementary modulation controller is retained, but its parameters are tuned using the real-coded genetic algorithm. The advantage of the proposed method is that it retains the simplicity of the conventional fixed-structure controller and also ensures robust acceptable performance over a wide range of system and operating conditions. The proposed approach has been applied to the controller design of the static VAR compensator connected in a two-area four-machine system. The details of implementation and simulation results are presented. Simulation results show that the method can be used for the designing of a supplementary modulation controller, which guarantees a robust closed-loop performance over a pre-specified range of operating and system conditions.

[1]  James D. McCalley,et al.  Damping controller design for power system oscillations using global signals , 1996 .

[2]  Christine M. Anderson-Cook.  Practical Genetic Algorithms (2nd ed.) , 2005 .

[3]  Ping Ju,et al.  Genetic algorithm aided controller design with application to SVC , 1996 .

[4]  Chang Wook Ahn,et al.  On the practical genetic algorithms , 2005, GECCO '05.

[5]  N. Rostamkolai,et al.  Design of a supplementary modulation control function for the Chester SVC , 1993 .

[6]  Rajiv K. Varma,et al.  Thyristor-Based Facts Controllers for Electrical Transmission Systems , 2002 .

[7]  Youyi Wang,et al.  Robust nonlinear coordinated generator excitation and SVC control for power systems , 2000 .

[8]  G. J. Rogers,et al.  A fundamental study of inter-area oscillations in power systems , 1991 .

[9]  V. Ajjarapu,et al.  Bifurcation theory and its application to nonlinear dynamical phenomena in an electrical power system , 1991 .

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

[11]  A. E. Hammad,et al.  Analysis of Power System Stability Enhancement by Static var Compensators , 1986, IEEE Power Engineering Review.

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

[13]  Yuan-Yih Hsu,et al.  Damping of generator oscillations using an adaptive static VAR compensator , 1992 .

[14]  Graham Rogers,et al.  Power System Oscillations , 1999 .

[15]  Steve Starrett,et al.  Fuzzy logic control schemes for static VAR compensator to control system damping using global signal , 2003 .

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

[17]  C. W. Taylor,et al.  Static var compensator models for power flow and dynamic performance simulation , 1994 .

[18]  Christopher R. Houck,et al.  A Genetic Algorithm for Function Optimization: A Matlab Implementation , 2001 .

[19]  Takashi Hiyama,et al.  Fuzzy logic control scheme with variable gain for static VAr compensator to enhance power system stability , 1999 .

[20]  O. P. Malik,et al.  Application of a power system stabiliser and a static VAr controller to a multimachine power system , 1990 .

[21]  Yasunori Mitani,et al.  An adaptive static VAr compensator using genetic algorithm and radial basis function network for enhancing power system stability , 2001, 2001 IEEE Porto Power Tech Proceedings (Cat. No.01EX502).

[22]  John H. Holland,et al.  Adaptation in Natural and Artificial Systems: An Introductory Analysis with Applications to Biology, Control, and Artificial Intelligence , 1992 .

[23]  Jin Jiang,et al.  Robust SVC controller design for improving power system damping , 1995 .

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

[25]  Randy L. Haupt,et al.  Practical Genetic Algorithms , 1998 .

[26]  Peter W. Sauer,et al.  Power System Dynamics and Stability , 1997 .

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

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

[29]  P. Kundur,et al.  Dynamic reduction of large power systems for stability studies , 1997 .

[30]  O. Begovich,et al.  Design of multiple FACTS controllers for damping inter-area oscillations: a decentralised control approach , 2004 .

[31]  Saleh M. Al-Alawi,et al.  Tuning of SVC damping controllers over a wide range of load models using an artificial neural network , 2000 .