System Design for Energy Management in Railways

The Environmental Engineering Research Laboratory at JR East continuously works on Research and Development (R&D) with an aim of achieving railway systems that have smaller environmental burden. The individual themes in that R&D are covered in their respective papers in this edition of JR East Technical Review. Here, the author would like to provide an overlook of design in energy management the author should aim for. The author will start with describing what load is and what optimization involves. Energy consumption has a structure whereby first there are services that must be provided, then rolling stock systems and facility equipment capacity are required to provide the services, and finally that capacity demands energy consumption. Energy consumption alone cannot be reduced without reducing demand (load). Energy conservation can thus be achieved by the approach of measuring and assessing to know the load, making changes to reduce load, and building optimal systems that meet the load. The basis of optimization is to set equipment capacity that meets the load. However, the actual load fluctuates over time, so the issue of optimal operation remains in addition to physical optimization. Also, if different load patterns exist in a single area, the issue emerges of optimizing the entire area by means such as leveling the load according to the situation or having loads complement each other. This is the basic concept for systemization of energy management. Specific system design is covered from the next chapter, separated into train operation systems and building systems.


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  • Accession Number: 01606026
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 21 2016 9:08AM