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Optimal Control for Coordinated Control of SVeC and PSS Damping Controllers

Authors: K. Himaja, T. S. Surendra, S. Tara Kalyani


In this article, Optimal Control for Coordinated Control (COC) of Series Vectorial Compensator (SVeC) and Power System Stabilizer (PSS) in order to damp Low Frequency Oscillations (LFO) is proposed. SVeC is a series Flexible Alternating Current Transmission System (FACTS) device. The Optimal Control strategy based on state feedback control for coordination of PSS and SVeC controllers under different loading conditions has not been developed. So, the Optimal State Feedback Controller (OSFC) for incorporating of PSS and SVeC controllers in COC manner has been developed in this paper. The performance of the proposed controller is checked through eigenvalue analysis and nonlinear time domain simulation results. The proposed Optimal Controller design for the COC of SVeC and PSS results will be analyzed without controller. The comparative results show that Optimal Controller for COC of SVeC and PSSs improve greatly the system damping LFO than without controller.

Keywords: Coordinated control, damping controller, optimal state feedback controller, power system stabilizer, series vectorial compensator.

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[1] P. Kundur, “Power system stability and control”, McGraw-Hill, New York, 1994,,768-780.
[2] L.A.C. Lopes and G. JoÓs, “Pulse width modulated capacitor for series compensation,” IEEE Trans. Power Electronics, vol.16, no.2, pp.167-174, March 2001.
[3] G. Venkataramanan and B.K. Johnson, “Pulse width modulated series compensator,” IEE Proc.-Gen., Trans. and Dist., vol.149, no.1, pp.71-75, Jan.2002.
[4] F. Mancilla-David, S. Bhattacharya, and G. Venkataramanan, “A comparative evaluation of series power –flow controllers using DC and AC-link converters,” IEEE Trans. Power Delivery, vol.23, no.2, pp.985-996, Apr.2008.
[5] J.M. González, C.A. Cañizares, and J.M. Ramírez, “Stability modeling and comparative study of series vectorial compensators,” IEEE Trans power delivery, vol.25, no.2, April 2010.
[6] Shakarami MR, Kazemi A, “Simultaneous coordinated tuning of SSSC-based stabilizer and PSS using quadratic mathematical programming”. Computer Sci Eng Electr Eng, vol.17, no.2, pp.163-74, December 2010.
[7] Zanetta LC, DA Cruz JJ. “An incremental approach to the coordinated tuning of power system stabilizers using mathematical programming”, IEEE Trans power Syst, 20(1):895-902, 2005.
[8] Cai. IJ, Erich I, “Simultaneous coordinated tuning of PSS and FACTS damping controllers in large power systems”. IEEE Trans Power Syst 2005:20 (1):294-300.
[9] Hiyama. T, Mishiro M, Kihara H, Ortmeyer TH, “Coordinated fuzzy logic control for series capacitor modules and PSS to enhance stability of power system. IEEE Trans Power Deliv 1995:10(2):1098-104.
[10] Ramirez JM, Castillo I. PSS and FDS simultaneous tuning. Electr Power Syst Res, 2004, 68(1):33-40.
[11] Nguyen TT, Gianto R, “Neural networks for adaptive control coordination of PSSs and FACTS devices in multi-machine power system,” IET Gener Transm Distrib 2008; 2(3);355-72.
[12] Elices A. Rouco L, Bourles H, Margotin T, “Design of robust controllers for damping inter-area oscillations: Application to the European power system,” IEEE Trans Power Syst 2004: 19(2):1058-67.
[13] Farsangi M. Kyanzaeh S. Haidari S. Nezamabadi H, “Coordinated control of low-frequency oscillations using real immune algorithm with population management”, Energy Conversion and Management 2010; 51:271-6.
[14] CIGRE Task Force 38.02.16 Report, Paris, France; 1999.
[15] Pilotto LAS, Alves JER, Watanabe EH., “High frequency eigenanalysis of HVDC and FACST assisted power systems” In: IEEE power engineering society, summer meeting; 2000. p. 823–9.
[16] The Electric Power Research Institute (EPRI) Report TR-109969. Analysis of control interactions on FACTS assisted power system. Final Report, Palo Alto, CA; January 1998.
[17] Safari, Amin, Heidar Ali Shayanfar, and Ahad Kazemi, “Coordinated control of pulse width modulation based AC link series compensator and power system stabilizers,” Elsevier Electrical Power and Energy systems, vol.83, pp.117-123, Dec. 2016.
[18] H. S. Ko and J. Jatskevich, "Power Quality Control of Wind-Hybrid Power Generation System Using Fuzzy-LQR Controller," in IEEE Transactions on Energy Conversion, vol. 22, no. 2, pp. 516-527, June 2007.
[19] P.W. Sauer, and M.A. Pai, “Power System Dynamics and Stability”. Prentice-Hall publisher, New Jersey, 1st ed.1998, p.221-228, 171-173.
[20] Truong, D. N., & Wang, L. (2013, May) “Dynamic stability enhancement of a single-machine infinite-bus system using a series vectorial compensator”. In Industrial Electronics (ISIE), 2013 IEEE International Symposium on (pp. 1-6).
[21] K. Himaja, T S Surendra and S Tara Kalyani, “Coordinated design of PSS and Series vectorial compensator controllers for damping power system oscillations,” Journal of Electrical Engineering, Vol 16, No 4, pp.507-512, Dec 2016.
[22] Debasish Mondal, Abhijit Chakrabarti, and Aparajita Sengupta, “Power System Small Signal Stability and Control”. San Diego, Academic Press, 1st ed, 2007,
[23] S.S. Lee and J K Park, “Design of power system stabilizer using observer/sliding mode, observer/sliding mode-model following and H_∞/ sliding mode controllers for small-signal stability study,” Elsevier Electrical Power and Energy systems, vol.20, pp.543-553, Nov 1998.
[24] Alok Sinha, Linear systems optimal and robust control, CRC press, 2007,