Decoupled-control method for levitation and propulsion in amphibious train marine-express

Kinjiro Yoshida, Hiroshi Takami, Liming Shi

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Computer simulations with the JR's MLU002 has made simply clear a feasibility of the Marine-Express (ME), which is an amphibious superconducting Maglev train able to run on land and under the water. This paper presents a unique method for levitation and propulsion suitable for the ME which can be applied quite independently of train speeds. The method is based on a new combined levitation and propulsion which is due to lift and thrust forces produced in linear synchronous motor (LSM). This paper also presents decoupled-control method for the combined system in which levitation and propulsion commands should be satisfied independently. Decoupled-control method for levitation and propulsion is derived from analytical formulas for lift and thrust forces in which armature-current and mechanical load-angle are included explicitly. ME02 is the second model of a unique LSM car which is designed to travel underwater based on the new theory for the ME proposed here. ME02 is a simulator for the ME running on land and under the water. In order to carry out real-time calculation control at high speed, DSP is applied in the experimental system. An approximation method suitable for DSP is presented which is based on 2-dimensional interpolation for armature-current and mechanical load-angle. The proposed decoupled-control method is verified from dynamics simulations in ME02.

Original languageEnglish
Pages (from-to)467-489
Number of pages23
JournalMemoirs of the Kyushu University, Faculty of Engineering
Volume55
Issue number4
Publication statusPublished - 1995 Dec
Externally publishedYes

Fingerprint

Propulsion
train
Linear motors
Synchronous motors
Computer simulation
thrust
Water
Interpolation
Railroad cars
Simulators
computer simulation
simulator
interpolation
method
Train
automobile
water
simulation
speed
land

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Decoupled-control method for levitation and propulsion in amphibious train marine-express. / Yoshida, Kinjiro; Takami, Hiroshi; Shi, Liming.

In: Memoirs of the Kyushu University, Faculty of Engineering, Vol. 55, No. 4, 12.1995, p. 467-489.

Research output: Contribution to journalArticle

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