A comprehensive simulator of AC autotransformer electrified traction system Online publication date: Fri, 29-Mar-2019
by Mohammad Hossein Bigharaz; Seyed Hossein Hosseinian; Ahmad Afshar; Amir Abolfazl Suratgar; Mehdi Amiri Dehcheshmeh
International Journal of Power and Energy Conversion (IJPEC), Vol. 10, No. 2, 2019
Abstract: In this paper a comprehensive simulator for a 2 × 25 kV AC autotransformer electrified traction system with MTL arrangement is developed. The main goal of this simulator is to complete performance analysis of a traction system consisting of some moving trains controlled by a virtual driver or ATO system under natural constraints and traction power limits. In order to evaluate the electrical performance, an advanced load flow analyser is proposed, which calculates all electrical parameters of the system by generating the equivalent admittance matrix of the entire system. The electrical effects of trains on each other are well extracted, when they are moving with various operational modes and speeds on a track. This simulator is well adapted to the real system Tehran-Golshahr suburban railway as a case study. A genetic algorithm-based optimisation core with some predefined objectives is developed and analysed for current balancing as a sample capability.
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