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Tanaka M.,Electromagnetic Guideway Technology Laboratory | Takahashi N.,Electromagnetic Guideway Technology Laboratory | Suzuki M.,Electromagnetic Guideway Technology Laboratory | Ikeda R.,Electromagnetic Guideway Technology Laboratory | Nagasaka S.,Research and Development Promotion Division
Quarterly Report of RTRI (Railway Technical Research Institute) (Japan) | Year: 2012

In superconducting magnetic levitation (Maglev) transportation systems, a vast number of ground coils are installed along the entire length of the guideway which must withstand long periods exposed to outdoor environment. Periodical maintenance work is essential to secure Maglev system operational reliability. However, maintenance work is time and effort consuming given the vast number of ground coils all with similar appearances. Establishment of a reliable and convenient maintenance management system is important. A maintenance management system was therefore developed for ground coils utilizing a maintenance vehicle and radio frequency identification (RFID) technology. Source


Suzuki M.,Electromagnetic Guideway Technology Laboratory | Takahashi N.,Electromagnetic Guideway Technology Laboratory
Quarterly Report of RTRI (Railway Technical Research Institute) | Year: 2013

PLG ground coils offering three functions, namely propulsion, levitation and guidance, used on superconducting maglev systems have been developed for construction by RTRI with a view to reducing cost by cutting the required overall number of coils. PLG coils however require guidance circuits made up of high voltage cables connecting facing coils. This cable installation is complicated and intricate. A model guideway was built therefore in order to investigate ways to reduce wiring. Tests were then performed with the optimal wiring solutions discovered, on a full size model. Results helped determine the suitable section size for duct lines, the required length of connection cables, the appropriate wiring procedures and an effective wiring layout. The outcome of these tests indicate that there are prospects for a problem-free approach to PLG coil cable wiring. Source

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