International Journal of Internet, Broadcasting and Communication

The Institute of Internet, Broadcasting and Communication (한국인터넷방송통신학회)
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On the Design of Power Supply System for Freight Train Reefer Container Based on Simulation

  • Kim, Joouk (Advanced Logistics System Research Department, Korea Railroad Research Institute) ;
  • Hwang, Sunwoo (Advanced Logistics System Research Department, Korea Railroad Research Institute) ;
  • Lee, Jae-Bum (Department of Railroad Electrical & Electronic Engineering, Korea National University of Transportation) ;
  • Hwang, Jaemin (Advanced Logistics System Research Department, Korea Railroad Research Institute) ;
  • Chae, Uri (Advanced Logistics System Research Department, Korea Railroad Research Institute)
  • Received : 2022.07.20
  • Accepted : 2022.07.25
  • Published : 2022.08.31
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Abstract

In recent years, if we order food by easily accessing the online market with our smartphone, we can receive the product in a fresh state at dawn the next day. Cold chain is an industry that can create high added value because it has both the characteristics of general logistics and sensitivity to temperature. Based on the electrical specifications derived from the reefer container capacity requirement investigation, we proved that power supply to up to 33 reefer containers can be made by using three additional auxiliary power supplies which are applied for freight trains in Korea. In this paper, we conducted a research on a design of power supply system for freight train reefer container based on simulation as a basic research necessary for low-temperature distribution and cold chain construction based on the reefer container railroad. Consequently, the simulation was conducted using the three-phase inverter diagram in PSIM and the SVPWM (3-harmonic injection method) control technique, and it was verified that the required power voltage was satisfied with 622Vdc, which is lower than the input voltage of general SPWM of 718Vdc. The details of this paper could be used as a foundational study for constructing cold chains based on a reefer container dedicated to freight trains in the future.

Keywords

Acknowledgement

This research was supported by a grant from R&D Program(Development of core technology for digital rail freight station, PK2202C3) of the Korea Railroad Research Institute.

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