A Practical Framework for Reliability and Quality Assessment of Power Systems

DOI: 10.4236/epe.2011.34060   PDF   HTML     4,860 Downloads   7,858 Views   Citations


This paper presents a new practical framework for evaluating reliability levels associated with power system supply-demand balance. The framework has been developed as part of a recent major industry-supported research and development study. The novel framework is based on three metaphors (dimensions) representing the relationship between available generation capacities and required demand levels. The first metaphor defines whether or not the capacity exists, the second metaphor defines whether or not the capacity is needed, and the last metaphor defines whether or not the capacity can reach (delivered to) the demand. The eight possible combinations associated with the 0/1 (Yes/No) values of the three metaphors would, in turn, define a set of powerful system-wide performance quality measures relating to generation deficiency, redundancy, bottling, etc. Practical applications to a portion of the Saudi power grid are also presented for demonstration purposes. The work of the paper constitutes a new line of research in system reliability assessment where the derived system-wide performance quality indices are capable of addressing and revealing areas of deficiencies and bottlenecks as well as redundancies in the composite generation- demand structure of large-scale power grids. In addition, the sensitivities of the performance quality indices with respect to variations in the system operating parameters represent powerful information, which can be used to assess the level of degradation in the reliability measure or the performance quality index under consideration.

Share and Cite:

M. El-Kady and B. Alshammari, "A Practical Framework for Reliability and Quality Assessment of Power Systems," Energy and Power Engineering, Vol. 3 No. 4, 2011, pp. 499-507. doi: 10.4236/epe.2011.34060.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] S. Torre, A. Conejo and J. Contreras, “Transmission Expansion Planning in Electricity Markets,” IEEE Transactions on Power Systems, Vol. 23, No. 1, 2008, pp. 238- 248. doi:10.1109/TPWRS.2007.913717
[2] M. El-Kady, M. El-Sobki and N. Sinha, “Reliability Evaluation for Optimally Operated Large Electric Power Systems,” IEEE Transactions on Reliability, Vol. R35, No. 1, 1986, pp. 41-47. doi:10.1109/TR.1986.4335340
[3] M. El-Kady, M. El-Sobki and N. Sinha, “Loss of Load Probability Evaluation Based on Real Time Emergency Dispatch,” Canadian Electrical Engineering Journal, Vol. 10, 1985, pp. 57-61.
[4] Q. M. Chen, L. Yan and J. McCalley, “The Risk of High-Order Transmission Contingencies,” Proceedings of the IEEE Power Engineering Society General Meeting, Norristown, 23 July 2007, pp. 1-7.
[5] M. El-Kady, B. Alaskar, A. Shaalan and B. Al-Shammri, “Composite Reliability and Quality Assessment of Interconnected Power Systems,” International Journal for Computation and Mathematic in Electrical and Electronic Engineering (COMPEL), Vol. 26, No. 1, 2007, Paper #SSD05-PES-12.
[6] B. Alshammari, M. El-Kady and Y. Al-Turki, “Computer-Aided Optimization of Power System Performance Quality Indices,” Proceedings of 3rd Global Conference on Power Control and Optimization, Gold Coast, 2-4 February 2010, p. 51.
[7] J. Choi, T. Mount and R. Thomas, “Transmission Expansion Planning Using Contingency Criteria,” IEEE Transactions on Power Systems, Vol. 22, No. 4, 2007, pp. 2249-2261. doi:10.1109/TPWRS.2007.908478
[8] P. Jirutitijaroen and C. Singh, “Reliability Constrained Multi-Area Adequacy Planning Using Stochastic Programming with Sample-Average Approximations,” IEEE Transactions on Power Systems, Vol. 23, No. 2, 2008, pp. 405-513. doi:10.1109/TPWRS.2008.919422
[9] R. Billinton and D. Huang, “Effects of Load Forecast Uncertainty on Bulk Electric System Reliability Evaluation,” IEEE Transactions on Power Systems, Vol. 23, No. 2, 2008, pp. 418-425. doi:10.1109/TPWRS.2008.920078
[10] H. Jun, Y. Zhao, P. Lindsay and P. Kit, “Flexible Transmission Expansion Planning with Uncertainties in an Electricity Market,” IEEE Transactions on Power Systems, Vol. 24, No. 1, 2009, pp. 479-488. doi:10.1109/TPWRS.2008.2008681
[11] P. Gill, W. Murray and M. Wright, “Practical Optimization,” Academic Press, London, 1981.

comments powered by Disqus

Copyright © 2020 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.