Research Papers: Gas Turbines: Structures and Dynamics

Application of Turbine Torsional Oscillation Damping Controller to Static Var Compensator

[+] Author and Article Information
Amir Ghorbani

Department of Electrical Engineering,
Abhar Branch,
Islamic Azad University,
Abhar 34367-45619, Iran
e-mail: ghorbani_a@abhariau.ac.ir

Masoud Arablu

Department of Mechanical Engineering
and Engineering Science,
University of North Carolina at Charlotte,
Charlotte, NC 28223
e-mail: marablu@uncc.edu

1Corresponding author.

Contributed by the Structures and Dynamics Committee of ASME for publication in the JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received December 24, 2014; final manuscript received January 1, 2015; published online March 31, 2015. Editor: David Wisler.

J. Eng. Gas Turbines Power 137(10), 102501 (Oct 01, 2015) (6 pages) Paper No: GTP-14-1676; doi: 10.1115/1.4030068 History: Received December 24, 2014; Revised January 01, 2015; Online March 31, 2015

This paper proposes a new auxiliary turbine torsional oscillation damping controller (TTODC) for static var compensator (SVC) to dampen out subsynchronous oscillations in power systems containing series compensated transmission lines. A new TTODC algorithm on the basis of synchronized phasor measurements received from phasor measurement units (PMUs) is presented. The idea of using remote signals obtained from PMU to dampen subsynchronous resonance (SSR) presented, too. An auxiliary TTODC is proposed for a SVC, using the generator rotor speed deviation signal as the stabilizing and remote signal to dampen subsynchronous oscillations. The performance of the controller is verified in a detailed nonlinear system considering eigenvalue analysis and transient simulations. Sturdiness of the controller is examined by applying the disturbances in the system that causes significant changes in generator's operating point. The IEEE second benchmark (SBM) model is used for the analysis and the SVC is simulated using the power system blockset (PSB) in the matlab/simulink environment.

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Anderson, P. M., and Farmer, R. G., 1996, “Subsynchronous Resonance,” Series Compensation of Power Systems, PBLSH, San Diego, CA, Chap. 6.
IEEE Power System Engineering Committee, “Analysis and Control of Subsynchronous Resonance,” IEEE Power Engineering Society Winter Meeting and Tesla Symposium, New York, Jan. 30–31.
Farmer, R. G., Schwalb, A. L., and Katz, E., 1977, “Navajo Project Report on Subsynchronous Analysis and Solution,” IEEE Trans. Power Appar. Syst., 96(4), pp. 1226–1232. [CrossRef]
Liu, C., Jiang, D., and Chen, J., 2014, “Coupled Torsional Vibration and Fatigue Damage of Turbine Generator Due to Grid Disturbance,” ASME J. Eng. Gas Turbines Power, 136(6), p. 062501. [CrossRef]
Xie, X., Jiang, Q., and Han, Y., 2012, “Damping Multimodal Subsynchronous Resonance Using a Static Var Compensator Controller Optimized by Genetic Algorithm and Simulated Annealing,” Eur. Trans. Electr. Power, 22(8), pp. 1191–1204. [CrossRef]
Padiyar, K. R., and Prabhu, N., 2006, “Design and Performance Evaluation of Subsynchronous Damping Controller With STATCOM,” IEEE Trans. Power Delivery, 21(3), pp. 1398–1405. [CrossRef]
Ghorbani, A., Mozaffari, B., and Ranjbar, A. M., 2012, “Application of Subsynchronous Damping Controller (SSDC) to STATCOM,” Electr. Power Energy Syst., 43(1), pp. 418–426. [CrossRef]
Ghorbani, A., and Pourmohammad, S., 2011, “A Novel Excitation Controller to Damp Subsynchronous Oscillations,” Electr. Power Energy Syst., 33(3), pp. 411–419. [CrossRef]
Yu, Y. N., Wvong, M. D., and Tse, K. K., 1978, “Multi-Mode Wide-Range Subsynchronous Resonance Stabilization,” IEEE/PES 1978 Summer Meeting, Los Angeles, CA, July 15–20, Paper No. A78 554-8.
Yan, A., and Yu, Y. N., 1982, “Multi-Mode Stabilization of Torsional Oscillation Using Output Feedback Excitation Control,” IEEE Trans. PAS, 101(5), pp. 1245–1253. [CrossRef]
Hsu, Y. Y., and Jeng, L. H., 1995, “Damping of Subsynchronous Oscillations Using Adaptive Controllers Tuned by Artificial Neutral Network,” IEEE Proc. Gener. Transm. Distrib., 142(4), pp. 415–422. [CrossRef]
Kamwa, I., Grondin, R., and Hebert, Y., 2001, “Wide-Area Measurement Based Stabilizing Control of Large Power Systems—A Decentralized/Hierarchical Approach,” IEEE Trans. Power Syst., 16(1), pp. 136–153. [CrossRef]
Bertsch, J., Carnal, C., Korba, P., Broski, L., and Sattinger, W., 2004, “Experience and Benefits of Systems for Wide Area Monitoring,” 6th Annual Western Power Delivery Automation Conference, Spokane, WA, Apr. 7–10.
Heydt, G., Liu, C., Phadke, A., and Vittal, V., 2001, “Solutions for the Crisis in Electric Power Supply,” IEEE Comput. Appl. Power, 14(3), pp. 22–30. [CrossRef]
Majumder, R., Chaudhuri, B., Pal, B. C., and Zhong, Q. C., 2005, “A Unified Smith Predictor Approach for Power System Damping Control Design Using Remote Signals,” IEEE Trans. Control Syst. Technol., 13(6), pp. 1063–1068. [CrossRef]
Leon, A. E., Mauricio, J. M., Gómez-Expósito, A., and Solsona, J. A., 2012, “Hierarchical Wide-Area Control of Power Systems Including Wind Farms and FACTS for Short-Term Frequency Regulation,” IEEE Trans. Power Delivery, 27(4), pp. 2084–2092. [CrossRef]
Chow, J. H., Sanchez-Gasca, J. J., Ren, H., and Wang, S., 2000, “Power System Damping Controller Design Using Multiple Input Signals,” IEEE Control Syst. Mag., 20(4), pp. 82–90. [CrossRef]
IEEE Subsynchronous Resonance Working Group, 1985, “Second Benchmark Model for Computer Simulation of Subsynchronous Resonance,” IEEE Trans. Power Appar. Syst., 104(5), pp. 1057–1066. [CrossRef]
IEEE Committee Report, 1973, “Dynamic Models for Steam and Hydro Turbines in Power System Studies,” IEEE Trans. Power Appar. Syst., 92(6), pp. 1904–1915. [CrossRef]
Hingorani, A. N. G., and Gyugyi, L., 2000, Understanding FACTS Concepts and Technology of Flexible AC Transmission Systems, IEEE Press, New York.
MathWorks, 2009, SimPowerSystems Toolbox Ver. 5.1, for Use With Simulink, User's Guide, The MathWorks, Natick, MA.
Ghorbani, A., Khederzadeh, M., and Mozafari, B., 2012, “Impact of SVC on the Protection of Transmission Lines,” Electr. Power Energy Syst., 42(1), pp. 702–709. [CrossRef]
Padiyar, K. R., 1999, Analysis of Subsynchronous Resonance in Power Systems, Springer Science + Business Media, New York.


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Fig. 1

Schematic representation of IEEE SBM system-1 model with SVC

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Fig. 2

SVC control system with TTODC or SSDC

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Fig. 3

Real parts of torsional modes for different ratios of series compensation

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Fig. 4

FFT analysis of Δω

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Fig. 5

Block diagram of the designed TTODC

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Fig. 6

Behavior of mode-0 for Kp = 6

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Fig. 7

Real parts of SSR modes for different ratios of series compensation after adding the SSDC

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Fig. 8

Real parts of SSR modes for different ratios of series compensation (KP = 6 and 7)

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Fig. 9

SVC and system performed in matlab/simulink environment using the PSB and simulink library

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Fig. 10

Variation of LP–Gen section torque for pulse change in input mechanical torque (SVC with voltage control and without SSDC)

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Fig. 11

Variation of LP–GEN section torque (a) and SVC reactive power (b) for pulse change in input mechanical torque (SVC with SSDC (KP = 2))

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Fig. 12

Variation of LP–GEN section torque for pulse change in input mechanical torque (SVC with SSDC (KP = 4 and KP = 2))

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Fig. 13

FFT analysis of Δω signal (SVC with SSDC (without high-pass filter, KP = 6))

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Fig. 14

Variation of LP–Gen section torque for a–g fault




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