Please use this identifier to cite or link to this item: https://doi.org/10. 1049/ip-epa:19990482
Title: Worst-case identification of touch voltage and stray current of DC railway system using genetic algorithm
Authors: Chang, C.S. 
Tian, L.F.
Issue Date: 1999
Source: Chang, C.S.,Tian, L.F. (1999). Worst-case identification of touch voltage and stray current of DC railway system using genetic algorithm. IEE Proceedings: Electric Power Applications 146 (5) : 570-575. ScholarBank@NUS Repository. https://doi.org/10. 1049/ip-epa:19990482
Abstract: The problem of reducing the touch voltage and stray current in DC railways is multiobjective and conflicting. It is affected by many factors such as the earthing and bonding design, as well as the normal and failure operating conditions. An approach of genetic algorithm based multiobjective optimisation is proposed to identify the worst-case touch voltage and stray current in MRT systems. A two-step design scheme is formulated to represent both the normal and the failure conditions. The method of Pareto-optimal sets is developed to best improve the touch voltages and stray current integral for the normal condition. The decision-maker is given a powerful tool for picking the most appropriate earthing and bonding design from the set, and for identifying the worstcase performance from the list of credible failure conditions. Simulation results are presented which demonstrate the effectiveness of the proposed approach in fulfilling the design objectives. © IEE, 1999.
Source Title: IEE Proceedings: Electric Power Applications
URI: http://scholarbank.nus.edu.sg/handle/10635/62943
ISSN: 13502352
DOI: 10. 1049/ip-epa:19990482
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