SVC supplementary controller for damping oscillations in power system

Power system oscillations occur due to the lack of damping torque at the generators rotors. The oscillation of the generators rotors cause the oscillation of other power system variables such as bus voltage, bus frequency and transmission lines active and reactive power. Power system oscillations ar...

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Main Author:	Ismail, Nurlida
Format:	Thesis
Language:	English
Published:	2009
Subjects:	TK Electrical engineering Electronics Nuclear engineering
Online Access:	http://eprints.utm.my/id/eprint/12310/6/NurlidaIsmailMFKE2009.pdf
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id	my-utm-ep.12310
record_format	uketd_dc
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TK Electrical engineering Electronics Nuclear engineering
spellingShingle	TK Electrical engineering Electronics Nuclear engineering Ismail, Nurlida SVC supplementary controller for damping oscillations in power system
description	Power system oscillations occur due to the lack of damping torque at the generators rotors. The oscillation of the generators rotors cause the oscillation of other power system variables such as bus voltage, bus frequency and transmission lines active and reactive power. Power system oscillations are usually in the range between 0.1 to 2 Hz depending on the number of generators involved in. They can be local or interarea oscillations. However, this project will focus on interarea oscillations only with the frequency range between 0.1 until 0.9 Hz. Flexible AC Transmission Systems (FACTS) got in the recent years a well-known term for higher controllability in power systems by means of power electronic devices. Several FACTS devices have been introduced for various applications worldwide. One of them is Static Var Compensator (SVC), which is a shunt device, provides dynamically variable shunt impedance to regulate the voltage at a bus where it is connected. Simulation of the case studies using SVC to show damping oscillations in the power system were done in Power System Analysis Toolbox. Moreover, location of SVC plays an important part to give effectively damped the oscillations. This project will discuss residue method to find the best placement of SVC for the case studies. Besides, the supplementary controller of SVC can be applied to improve the performance of damping oscillations in the power system. In this project, the supplementary controller for SVC is referred as proportional plus integral plus derivative controller. Lastly, a designing of SVC and supplementary controller to improve 10% of damping oscillations in the power systems is successfully designed.
format	Thesis
qualification_level	Master's degree
author	Ismail, Nurlida
author_facet	Ismail, Nurlida
author_sort	Ismail, Nurlida
title	SVC supplementary controller for damping oscillations in power system
title_short	SVC supplementary controller for damping oscillations in power system
title_full	SVC supplementary controller for damping oscillations in power system
title_fullStr	SVC supplementary controller for damping oscillations in power system
title_full_unstemmed	SVC supplementary controller for damping oscillations in power system
title_sort	svc supplementary controller for damping oscillations in power system
granting_institution	Universiti Teknologi Malaysia, Faculty of Electrical Engineering
granting_department	Faculty of Electrical Engineering
publishDate	2009
url	http://eprints.utm.my/id/eprint/12310/6/NurlidaIsmailMFKE2009.pdf
_version_	1747814920193310720
spelling	my-utm-ep.123102017-09-17T05:32:56Z SVC supplementary controller for damping oscillations in power system 2009-11 Ismail, Nurlida TK Electrical engineering. Electronics Nuclear engineering Power system oscillations occur due to the lack of damping torque at the generators rotors. The oscillation of the generators rotors cause the oscillation of other power system variables such as bus voltage, bus frequency and transmission lines active and reactive power. Power system oscillations are usually in the range between 0.1 to 2 Hz depending on the number of generators involved in. They can be local or interarea oscillations. However, this project will focus on interarea oscillations only with the frequency range between 0.1 until 0.9 Hz. Flexible AC Transmission Systems (FACTS) got in the recent years a well-known term for higher controllability in power systems by means of power electronic devices. Several FACTS devices have been introduced for various applications worldwide. One of them is Static Var Compensator (SVC), which is a shunt device, provides dynamically variable shunt impedance to regulate the voltage at a bus where it is connected. Simulation of the case studies using SVC to show damping oscillations in the power system were done in Power System Analysis Toolbox. Moreover, location of SVC plays an important part to give effectively damped the oscillations. This project will discuss residue method to find the best placement of SVC for the case studies. Besides, the supplementary controller of SVC can be applied to improve the performance of damping oscillations in the power system. In this project, the supplementary controller for SVC is referred as proportional plus integral plus derivative controller. Lastly, a designing of SVC and supplementary controller to improve 10% of damping oscillations in the power systems is successfully designed. 2009-11 Thesis http://eprints.utm.my/id/eprint/12310/ http://eprints.utm.my/id/eprint/12310/6/NurlidaIsmailMFKE2009.pdf application/pdf en public masters Universiti Teknologi Malaysia, Faculty of Electrical Engineering Faculty of Electrical Engineering [1] P. Kundur, J. Paserba, V. Ajjarapu, G. Anderson, A. Bose, C. Canizares, N. Hatziargyriou, D. Hill, A. Stankovic, C. Taylor, T.V. Cutsem and V. Vittal. Definition and Classification of Power System Stability. IEEE Trans. on Power Systems, vol.19, no.2, May 2004. pp1387-1400. [2] G. S. Vassell, “Northeast blackout of 1965”. IEEE Power Engineering Review, Jan. 1991. pp 4-8. [3] N. Mithulanathan, S. C. Srivastava. Investigation of a Voltage Collapse Incident in Sri Lanka Power System Network. In proc EMPD Singapore, March 1995, IEEE catalogue no 98EX137. pp 47-52. [4] P. Kundur (1994). Power System Stability and Control. New York: McGraw- Hill. [5] A. Jalilvand and M. D. Keshavarzi. Adaptive SVC Damping Controller Design, Using Residue Method in a Multi-Machine System. 6th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology, ECTI-CON 2009. 6-9 May, pp 160-163. [6] L. Rouco. Eigenvalue-based Methods for Analysis and Control of Power System Oscillations. Power System Dynamics Stabilisation (Digest No. 1998/196 and 1998/278), IEE Colloquium on 23-24 Feb 1998.pp 3/1-3/6. [7] N. G. Hingorani and L. Gyugi. Understanding FACTS; Concepts and Technology of Flexible AC Transmission Systems. IEEE Press book. 2000. 13-19. [8] K.R. Padiyar and A.M. Kulkarni. Flexible AC Transmission Systems: A status review. Sadhana, vol 22, Part 6, December 1997. pp 781-796. [9] X. –P.Zhang, C.Rehtanz, B.Pal. Flexible AC Transmission Systems: Modeling and Control. Springer, Germany, 2006. [10] www.velco.com viewed on 10th April 2009. [11] N. Mithulanathan, C. A. Canizares, J. Reeve, and G. J. Rogers. Comparison of PSS, SVC, and STATCOM Controllers for Damping Power System Oscillations. IEEE Trans. Power System, vol.18, no.2, pp 786-792, May 2003. [12] T. Ohyama, K. Yamashita, T. Maeda. Effective Application of Static Var Compensators to Damp Oscillations. IEEE Trans on Power Apparatus and Systems, Vol. PAS-104, n0.6, June 1985, pp 1405-1410. [13] M. W. Mustafa and N. Magaji. Design of Power Oscillation Damping Controller for SVC Device. 2nd IEEE International Conference on Power and Energy, Dec. 2008. [14] H. F. Wang and F. J. Swift. Capability of the Static Var Compensator in Damping Power System Oscillations. IEEE Proc. Genet. Transm. Distrib., vol. 143, no.4. pp 353-358. 1996. [15] E.Z. Zhou. Application of Static Var Compensators to Increase Power System Damping, IEEE Trans. on Power Systems, vol. 8, no. 2, May 1993. [16] N. Martins, L.T.G. Lima. Determination of Suitable Locations for Power System Stabilizers and Static Compensators for Damping Electromechanical Oscillations in Large Power System. IEEE Trans. on Power System, vol.5, no.4, Nov. 1990. [17] N. Magaji and M.W. Mustafa. Optimal Location of FACTS Devices for Damping Oscillations Using Residue Factor. 2nd IEEE International Conference on Power and Energy, Dec. 2008. pp 1339-1344. [18] M. H. Haque. Optimal Location of Shunt FACTS Devices in Long Transmission Lines. IEE Proceedings on Generation, Transmission and Distribution, vol. 147, no.4, July 2000. pp 679-686. [19] M. W. Mustafa and Y. C. Wong. Optimal Placement of Static Var Compensator Using Genetic Algorithms. Elektrika, Vol. 10, no. 1, 2008. pp 26-31.

SVC supplementary controller for damping oscillations in power system

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