July 2023
Intermediate to advanced
736 pages
21h 18m
English
Content preview from Linear Electric Machines, Drives, and MAGLEVs Handbook, 2nd Edition
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21 Repulsive Force Levitation Systems
Repulsive forces (RFLS) occur between two current carrying conductors of positive and negative polarity or between a moving current carrying coil and a short-circuited fix electric circuit (conducting sheet or shorted coil) and also between a moving permanent magnet (PM) and a fix short-circuited electric circuit or between two PMs of opposite polarity. The repulsive (electrodynamic) force, in contrast to attraction force (Chapter 20), is such that it repels the other side and thus tends to be statically stable. Not so dynamically, but the damping of the motion oscillations is simpler than for ALSs. Also, the distance (gap) between the mover and the guideway can be 10 times ...
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