Title :
A novel detection technique of non-uniform airgap in frictionless linear induction transportation systems
Author :
Yu, H. ; Fahimi, B.
Author_Institution :
Univ. of Texas at Arlington, Arlington, TX
Abstract :
The applications of linear induction machines (LIM) in propulsion have been investigated vastly in the past few decades. The advantages of LIM when applied in the propulsion system are that of easy maintenance and high acceleration/deceleration, to name a few. One of the applications is to combine the LIM with magnetically levitated system (Maglev) to achieve frictionless transportation system. However, in case Maglev can not maintain a uniform airgap length, major magnetic characteristics of the machine will be influenced. In this paper, the impact of this type of imperfection on the existing control strategies will be investigated. Furthermore, a simple detection technique is proposed.
Keywords :
air gaps; electric propulsion; linear induction motors; magnetic levitation; LIM; Maglev; acceleration/deceleration; frictionless linear induction transportation systems; linear induction motors; magnetic characteristics; magnetically levitated system; nonuniform airgap detection technique; propulsion system; Acceleration; Air transportation; Aluminum; Force control; Frequency; Hysteresis; Induction machines; Magnetic levitation; Propulsion; Table lookup; LIM; Maglev; non-uniform airgap length; propulsion;
Conference_Titel :
Vehicle Power and Propulsion Conference, 2008. VPPC '08. IEEE
Conference_Location :
Harbin
Print_ISBN :
978-1-4244-1848-0
Electronic_ISBN :
978-1-4244-1849-7
DOI :
10.1109/VPPC.2008.4677587
