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Determination of Potential Regenerative Braking Energy in Railway Systems: A Case Study for Istanbul M1A Light Metro Line

Ibrahim Sengor, Hasan Can Kilickiran, Huseyin Akdemir, and Beyhan Kilic
Department of Electrical Engineering, Yildiz Technical University, Istanbul, Turkey 34220
Abstract—Concerns of humanity about energy are rising because energy usage is rapidly increasing and ready-energy resources are running out. In recent years, governments are endeavoring to develop energy policies by aiming economical and efficient usage of electrical energy. Electrical railway systems (ERS) are one of the remarkable options that have great potential to achieve energy efficiency targets. In electrical railway systems, various methods are available for using energy economically and efficiently. Among these methods, the most important one for saving energy in ERS is to reuse of regenerative braking energy (RBE). In this paper, M1A Yenikapi-Airport light metro line, one of the subway line of Metro İstanbul Co. is modeled with RAILSIM® simulation program by using real data of the whole line. Energy consumption of the train is obtained by simulations and compared with measured energy consumption for a week. In the light of simulations and calculations, potential RBE is determined. Results revealed that 32 percent of the consumed energy yearly could be regained. In case the potential RBE is used, estimated annual income is 2.2 Million US Dollars.

Index Terms— energy efficiency, electrical railway systems, regenerative braking energy, transportation, RAILSIM

Cite: Ibrahim Sengor, Hasan Can Kilickiran, Huseyin Akdemir, and Beyhan Kilic, "Determination of Potential Regenerative Braking Energy in Railway Systems: A Case Study for Istanbul M1A Light Metro Line," Jounal of Automation and Control Engineering, Vol. 5, No. 1, pp. 21-25, June, 2017. doi: 10.18178/joace.5.1.21-25
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