Steady State Stability Analysis and Improvement using Eigenvalues and PSS: A Case Study of a Thermal Power Plant in Jamshoro, Pakistan

  • Z. A. Shahani Department of Electrical Engineering, Mehran University of Engineering and Technology, Pakistan
  • A. A. Hashmani Department of Electrical Engineering, Mehran University of Engineering and Technology, Pakistan
  • M. M. Shaikh Department of Basic Sciences and Related Studies, Mehran University of Engineering and Technology, Pakistan http://orcid.org/0000-0002-1471-822X
Keywords: state stability, power plant, eigenvalues, power system stabilizer, MATLAB

Abstract

The efficient handling and distribution of electrical power consist one of the most complex and appealing research problems. Due to the interconnection of different power plants and intensity of load, which gradually changes due to continuous change in load on generating units, careful treatment of the small disturbances in a power system which may lead to severe disturbance is necessary. Stability is an essential part in electrical power system operation and control. The stability problem is related with the behavior of synchronous machine after the power system is subjected to trouble. This work presents Steady State Stability (SSS) analysis of a Jamshoro Thermal Power Plant (JTPP) by using eigenvalue analysis of the different cases by varying load at three different positions. A mathematical model has been used for the JTPP with real data in order to examine the behavior of the system and to find the eigenvalues. A Simulink model of the JTTP for waveform analysis in MATLAB/Simulink has been used without and with Power System Stabilizer (PSS). Numerical quantification of the eigenvalues under the examined cases categorizes the stability of the system. The waveforms of the system are analyzed, and in cases of instability, the proposed procedure utilizing PSS helps in maintaining the system’s usual working conditions. The eigenvalue analysis and simulation results show the behavior of synchronous machines when loading changes gradually. The existing system becomes stable after more swings, whereas by using PSS in the existing system, stable regimes are attained in less time. The obtained results demonstrate the effectiveness of the proposed solution for SSS examination and securing of the disturbances of the JTPP.

Author Biographies

Z. A. Shahani, Department of Electrical Engineering, Mehran University of Engineering and Technology, Pakistan

Department of Electrical Engineering, Mehran University of Engineering & Technology, Indus Hwy, Jamshoro, Sindh 76062, Pakistan

A. A. Hashmani, Department of Electrical Engineering, Mehran University of Engineering and Technology, Pakistan

Department of Electrical Engineering, Mehran University of Engineering & Technology, Indus Hwy, Jamshoro, Sindh 76062, Pakistan

M. M. Shaikh, Department of Basic Sciences and Related Studies, Mehran University of Engineering and Technology, Pakistan

Department of Basic Sciences and Related Studies, Mehran University of Engineering & Technology, Indus Hwy, Jamshoro, Sindh 76062, Pakistan

References

N. Balu, T. Bertram, A. Bose, V. Brandwajn, G. Cauley D. Curtice, A. Fouad, L. Fink, M. G. Lauby, B. F. Wollenberg, J. N. Wrubel, “On-line power system security analysis”, Proceedings of the IEEE, Vol. 80, No. 2, pp. 262-282, 1992

B. Singh, “Applications of FACTS controllers in power systems for enhance the power system stability: a state-of-the-art”, International Journal of Reviews in Computing, Vol. 6, 2011

T. S. Sidhu, D. A. Tziouvaras, A. P. Apostolov, C. H. Castro, S. R. Chano, S. H. Horowitz, W. O. Kennedy, S. Kim, R. J. Martilla, P. G. McLaren, G. L. Michel, “Protection issues during system restoration”, IEEE Transactions on Power Delivery, Vol. 20, No. 1, pp. 47-56, 2005

Y. Song, B. Wang, “Survey on reliability of power electronic systems”, IEEE Transactions on Power Electronics, Vol. 28, No. 1, pp. 591-604, 2012

E. Mariani, S. S. Murthy, Advanced load dispatch for power systems: Principles, practices and economies, Springer Science & Business Media, 2012

H. Saadat, Power system Analysis, McGraw-Hill, 2002

M. M. Biswas, K. K. Das, “Steady state stability analysis of power system under various fault conditions”, Global Journal of Research in Engineering, Vol. 11, No. 6, 2011

P. Pruski, S. Paszek, “Analysis of calculation accuracy of power system electromechanical eigenvalues based on instantaneous power disturbance waveforms”, available at: https://dspace5.zcu.cz/bitstream/11025/25916/1/Pruski.pdf, 2011

J. G. Slootweg, J. Persson, A. M. Van-Voorden, G. C. Paap, W. L. Kling, “A study of the eigenvalue analysis capabilities of power system dynamics simulation software”, 14th Power Systems Computation Conference, Sevilla, Spain, June 24-28, 2002

G. M. Tristan Jr, J. G. Singh, W. Pinthurat, “Power flow and small signal stability analysis on the interconnected Philippine power grid”, Perspectives in Science, Vol. 8, pp. 589-91, 2016

A. Kashyap, Small-signal stability analysis and power system stabilizer design for grid-connected photovoltaic generation system, PhD Thesis, Carleton University, 2015

K. Himaja, T. S. Surendra, S. T. Kalyani, “Steady state stability analysis of a single machine power system by using MATLAB”, International Journal of Engineering Research & Technology, Vol. 1, No. 7, 2012

Y. C. Choo, M. A. Kashem, M. Negnevitsky, “Assessment of small disturbance stability of a power system”, Australasian Universities Power Engineering Conference, Victoria, Australia, December 10-13, 2006

W. Yang, Hydropower plants and power systems: Dynamic processes and control for stable and efficient operation, Springer; 2019

N. E. Akpeke, C. M. Muriithi, C. Mwaniki, “Contribution of FACTS devices to the transient stability improvement of a power system integrated with a PMSG-based wind turbine”, Engineering, Technology & Applied Science Research, Vol. 9, No. 6, pp. 4893-4900, 2019

O. Kahouli, B. Ashammari, K. Sebaa, M. Djebali, H. H. Abdallah, “Type-2 fuzzy logic controller based PSS for large scale power systems stability”, Engineering, Technology & Applied Science Research, Vol. 8, No. 5, pp. 3380-3386, 2018

G. Shahgholian, A. Fattollahi, “Improving power system stability using transfer function: A comparative analysis”, Engineering, Technology & Applied Science Research, Vol. 7, No. 5, pp. 1946-1952, 2017

D. V. Ngo, K. V. Pham, D. D. Le, K. H. Le, K. V. Huynh, “Assessing power system stability following load changes and considering uncertainty”, Engineering, Technology & Applied Science Research, Vol. 8, No. 2, pp. 2758-2763, 2018

R. Azizipanah-Abarghooee, M. Malekpour, M. S. Ayaz, M. Karimi, V. Terzija, “Small signal based frequency response analysis for power systems”, 2018 IEEE PES Innovative Smart Grid Technologies Conference Europe, Sarajevo, Bosnia-Herzegovina, October 21-25, 2018

How to Cite
[1]
Z. A. Shahani, A. A. Hashmani, and M. M. Shaikh, “Steady State Stability Analysis and Improvement using Eigenvalues and PSS: A Case Study of a Thermal Power Plant in Jamshoro, Pakistan”, Eng. Technol. Appl. Sci. Res., vol. 10, no. 1, pp. 5301-5306, Feb. 2020.

Metrics

Abstract 56
PDF Downloads 37
Bookmark and Share