December 2017
Intermediate to advanced
660 pages
18h 49m
English
Content preview from Linear Electric Machines, Drives, and MAGLEVs Handbook
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13 Tubular Linear Permanent Magnet Synchronous Motors
By tubular linear permanent magnet synchronous motors (T-LPMSMs), we mean the three-phase distributed (q ≥ 1) or tooth-wound (q ≤ 0.5) winding primary and PM-secondary tubular configurations with sinusoidal or trapezoidal emfs, supplied by sinusoidal or trapezoidal bipolar currents, to produce a low ripple electromagnetic thrust in industrial applications for travel lengths lower than 1.5 ÷ 3 m. The single-phase (or coil) PM actuators, used for short stroke (up to ±15 mm) resonant oscillator linear motion production, will be investigated in a chapter dedicated to linear oscillatory PM machines.
All linear motors mentioned so far in this book have ac coils with a span around one pole pitch ...
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