Journal of South China University of Technology (Natural Science Edition) ›› 2009, Vol. 37 ›› Issue (11): 100-106.

• Power & Electrical Engineering • Previous Articles     Next Articles

Optimization and Simulation of Maintenance Plan of Traction Power Supply Systems

Chen Min-wu  Li Qun-zhan  Xie Shao-feng   

  1.  School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, Sichuan, China
  • Received:2008-12-30 Revised:2009-03-23 Online:2009-11-25 Published:2009-11-25
  • Contact: 陈民武（1983-），男，博士，主要从事牵引供电系统优化设计研究． E-mail:cmw_015@163．com
  • About author:陈民武（1983-），男，博士，主要从事牵引供电系统优化设计研究．
  • Supported by:

    “十一五”国家科技支撑计划项目（2007BAA12805）;铁道部科技研究开发计划重大课题（Z2006-047）;铁道部科技研究开发计划重点课题（2007J035）

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Abstract:

The maintenance scheduling of a traction power supply system should give consideration to both system reliability and maintenance economy. In this paper, the method to analyze system reliability, namely GO methodology, is applied to the reliability assessment of the traction power supply system of a high-speed railway, and a quantitative calculation equation of system reliability is deduced. Then, by considering the economic dependency among the maintenance of various electrical equipments and the imperfectness of preventive maintenance, an optimal model of maintenance plan to satisfy the reliability constraints is proposed to minimize the maintenance cost in a finite time interval. The corresponding simulation program with good convergence is also presented based on an improved discrete particle swarm optimization algorithm. Simulated results indicate that the proposed model is objective and effective and is suitable for scheduling the maintenance plan of traction power supply svstems.

Key words: traction power supply system, GO methodology, reliability analysis, maintenance plan, optimization, simulation