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Article Number - 489439241339


Vol.5(8), pp. 145-153 , November 2013
DOI: 10.5897/JMER2013.0292
ISSN: 2141-2383



Full Length Research Paper

Optimal maintenance scheduling of thermal power unıts in a restructured nigerian power system



Obodeh, O.
  • Obodeh, O.
  • Mechanical Engineering Department, Ambrose Alli University, Ekpoma, Edo State, Nigeria.
  • Google Scholar
Ugwuoke, P. E
  • Ugwuoke, P. E
  • Mechanical Engineering Department, Petroleum Training Institute, Effurun, Delta State, Nigeria.
  • Google Scholar







 Accepted: 27 September 2013  Published: 30 November 2013

Copyright © 2013 Author(s) retain the copyright of this article.
This article is published under the terms of the Creative Commons Attribution License 4.0


The optimal preventive maintenance schedules of generating units for the purpose of maximizing economic benefits and improving reliable operation of 44 functional thermal generating units of Nigerian power system, subject to satisfying system load demand, allowable maintenance window and crew constraints over 52 weeks maintenance and operational period is presented. It uses HPSO algorithm to find the optimum schedule. The purpose of the algorithm is to orderly encourage moving maintenance outages from periods of low reliability to periods of high reliability, so that a reasonable reliability level is attained throughout the the year. The maintenance outages for the generating units were scheduled to minimize the sum of the squares of reserves and satisfy 2,943.8 MW system peak load with 6.5% spinning reserve of 2,403.8 MW, available manpower for maintenance per week of 22 and maximum generation of 3,028.8 MW. The reliability criterion of the power system was achieved by maximizing the minimum net reserves along with satisfaction of maintenance window, crew and load constraints. The population size of 30 particles and 2500 iterations were chosen. These were chosen as a trade-off between computational time and complexity. It was shown that the HPSO algorithm is not as time efficient as the standard PSO but it provides more consistent and reliable results. In the periods of low maintenance activities, with the PSO algorithm, the maximum generation is 2,753.8 MW while the HPSO produce 2,943.8 MW. It is glaring from the comparison that the HPSO algorithm shows better performance and produce optimal maintenance scheduling framework for the Nigerian power system that will achieve better utilization of available energy with improved reliability and reduction in energy cost.

 
Key words: Generator maintenance, deregulated market, optimization.
 

Billinton R, Abdulwahab A (2003). Short-term Generating Unit Maintenance in a Deregulated Power System using a Probabilistic Approach. IET Proceeding- Gen. Trans. Distrib. 150(4):463-468.
 
Cagnina LC, Esquivel SC, Coello CA (2011). Solving Constrained Optimization Problems with a Hybrid Particle Swarm Optimization Algorithm. Eng. Optim. 43(8):843-866.
http://dx.doi.org/10.1080/0305215X.2010.522707
 
Conejo AJ, Garcίa-Bertrand R, Dίaz-Salazar M (2005). Generation Maintenance Scheduling in Restructured Power Systems. IEEE Trans. Power Syst. 20(2):984-992.
http://dx.doi.org/10.1109/TPWRS.2005.846078
 
Del Valle Y, Venayagamoorthy GK, Mohagheghi S, Hernandez J, Harley RG (2008). Particle Swarm Optimization: Basic Concepts, Variants and Applications in Power System. IEEE Trans. Evol. Computat. 12(2):171-195. http://dx.doi.org/10.1109/TEVC.2007.896686
 
Efenedo GI, Akalagboro IO (2012). The Challenges of Power Generation, Utilization and Supply: The Nigeria Vision for the 21st Century. J. Emerging Trends Eng. Appl. Sci. 3(5):886-891.
 
FGN (2005). Electric Power Sector Reform Act, 2005. Federal Republic of Nigeria Official Gazzete Vol. 92, No. 77 Government Notice No. 150.
 
Jin-ho K, Jong-Bae P, Jong-Keun P, Yeung-Han C (2005). Generating Unit Maintenance Scheduling under Competitive Market Environments. Elect. Power Energy Syst. 27:189-194.
http://dx.doi.org/10.1016/j.ijepes.2004.07.011
 
Khan L, Mumtaz S, Javed K (2010). Generator Maintenance Schedule for WAPDA System using Meta- Heuristic Paradigms. Austral. J. Basic Appl. Sci. 4(7):1656-1667.
 
Kitayayama S, Yasuda K (2006). A Method for Mixed Integer Programming Problems by Particle Swarm Optimization. Elect. Eng. Japan. 157(2):813-820.
http://dx.doi.org/10.1002/eej.20337
 
Presidential Action Committee on Power (2010). Roadmap for Power Sector Reform: A customer-Driven Sector-Wide Plan to Achieve Stable Power. Accessed from www.nigeriaelectricityprivatisation.com/wp-content/plugins/download-monitor/download.php?id=43 on December 12, 2012.
 
Sambo AS (2007). Achieving the Millennium Development Goals (MDGs): The Implication for Energy Infrastructure in Nigeria. Proceedings of COREN 16th Engineering Assembly, August 28-29, Abuja, Nigeria, pp. 121-141.
 
Song Y, Zhijian W, Wang H, Zhangxin C, Zhong H (2012). A Hybrid Particle Swarm Optimization Algorithm based on Space Transformation Search and A Modified Velocity Model. Int. J. Num. Anal. Model. 9(2):371-377.
 
Talukder S (2011). Mathematical Modelling and Applications of Particle Swarm Optimization. M. Sc. Dissertation, School of Engineering, Blekinge Institute of Technology, Sweden.
 
Yare Y, Venayagamoorhty GK (2010). Optimal Generator Maintenance Scheduling using Multiple Swarms- MDPSO Framework, Eng. Appl. Artif. Intell. 23(6):895-910.
http://dx.doi.org/10.1016/j.engappai.2010.05.006
 
Yare Y, Venayagamoorthy GK, Aliyu UO (2008). Optimal Generator Maintenance Scheduling using a Modified Discrete PSO. IET J. Gen. Trans. Distrib. 2(6):834-846.
http://dx.doi.org/10.1049/iet-gtd:20080030
 
Yasuda K, Yazawa K, Motoki M (2010). Particle Swarm with Parameter Self-adjusting Mechanism. IEEJ Trans. Elect. Electr. Eng. 5(2):256-257. http://dx.doi.org/10.1002/tee.20525
 
Zimmerman R, Gan D (2005). MATPOWER: A Matlab Power System Simulation Package.

 


APA (2013). Optimal maintenance scheduling of thermal power unıts in a restructured nigerian power system. Journal of Mechanical Engineering Research, 5(8), 145-153.
Chicago Obodeh, O. and Ugwuoke, P. E.    . "Optimal maintenance scheduling of thermal power unıts in a restructured nigerian power system." Journal of Mechanical Engineering Research 5, no. 8 (2013): 145-153.
MLA Obodeh, et al. "Optimal maintenance scheduling of thermal power unıts in a restructured nigerian power system." Journal of Mechanical Engineering Research 5.8 (2013): 145-153.
   
DOI 10.5897/JMER2013.0292
URL http://www.academicjournals.org/journal/JMER/article-abstract/489439241339

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