Technical challenges to realize energy-efficient linear metros in Japan

Subway operators introduced linear metros in 1990s and continued successful urban passenger transport service in many large and dense cities in Japan for more than a quarter century. A significant disadvantage of the linear metros is the relatively low energy efficiency. Therefore, Japan Subway Asso...

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Bibliographic Details
Published in2017 11th International Symposium on Linear Drives for Industry Applications (LDIA) pp. 1 - 6
Main Authors Koseki, Takafumi, Watanabe, Shoichiro, Miura, Takeru, Mizuma, Takeshi, Isobe, Eisuke
Format Conference Proceeding
LanguageEnglish
Published The Institute of Electrical Engineers of Japan 01.09.2017
Subjects
automatic train operation (ATO)
Brakes
Energy consumption
Energy efficiency
energy-saving train operation
Induction motors
linear induction motor (LIM)
Optimization
Public transportation
regenerative brake
Vehicle dynamics
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Summary:Subway operators introduced linear metros in 1990s and continued successful urban passenger transport service in many large and dense cities in Japan for more than a quarter century. A significant disadvantage of the linear metros is the relatively low energy efficiency. Therefore, Japan Subway Association (JSA) started a technical challenge to reduce the traction energy consumption of linear metros in 2012. After engineering efforts for three years, the improved automatic train operation (ATO) achieved the energy-saving of more than 16%. This paper technically explains the idea and the concrete methods in the successful technical challenge.
DOI:10.23919/LDIA.2017.8097239