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An Electrical Energy Allotment Method for a Large Railway Network
Author(s) -
KOMAKI DAISUKE,
YANO KOJIN,
FUKUMOTO TAKASHI
Publication year - 2016
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.22844
Subject(s) - allotment , electric potential energy , limit (mathematics) , energy (signal processing) , computer science , engineering , civil engineering , mathematics , ecology , mathematical analysis , statistics , biology
SUMMARY Railway operators usually do not consider the limit of the electrical energy supply in Japan. Although technologies have been developed for energy efficiency, the limit on the available electrical energy is not considered. However, railway operators met the limit in summer 2011 after the earthquake off the Pacific coast of Tohoku. In this study, we develop an electrical energy allotment method for a large railway network. The method optimizes train operations to provide better railway service when the energy supply is limited. We also develop a search method to find the optimal operation from very large combinations of operation factors. These optimization and search methods are evaluated using the Tohoku earthquake scenario.