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Design and Simulation Hybrid Energy Storage Systems for Electric Urban Rail Transport Systems

Heydari, Mohammad | 2013

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 45134 (05)
  4. University: Sharif University of Technology
  5. Department: Electrical Engineering
  6. Advisor(s): Zolghadri, Mohammad Reza
  7. Abstract:
  8. In urban rail transport systems such as subway, Trains are constantly accelerate and brake, so the braking system is of great importance in energy consumption and constitute about 30 to 40 percent of total energy consumption trains, thus retrieval braking energy will lead to significant savings in urban rail transport systems. In this paper, in the beginning, different storage equipments for storage braking energy have been studied and compared and finally Supercapacitors due to technical and economic features have been selected for the storge of equipment. These systems can be implemented in both stationary and onboard. For precise evaluation and select the appropriate storage system, by using code writing and Simulink environment in the Matlab Software, an appliction for simulation the subway system has been produced and as a case study, 10 Stations of Line1 of Tehran metro network (from Imam Khomeini station until Mir Damad station) for 5 different traffic scenarios have been simulated. Onboard and Stationary energy storage system for retrieval the maximum braking energy have been designed and the mentioned subway system in the presence of stationary and onboard storage system for different traffic scenarios has been simlulated, the simulation results of these sytems have been compared with each other and the subway system without energy storage system. Eventually a hybrid energy storage system have been designed to be suitable for all traffic scenarios, to reduce the initial investment cost of energy storage system compared to onboard energy storage system and to bring benefits of stationary and onboard energy storage systems at the same time
  9. Keywords:
  10. Electric Railway ; Energy Conservation ; Energy Storage ; Supercapacitor ; Hybrid Energy Storage System ; Stationary Energy Storage System ; Onboard Energy Storage System

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