Magnetic levitation (maglev) trains may replace airplanes on routes shorter than 200
Chapter 0, Problem P12.3(choose chapter or problem)
Magnetic levitation (maglev) trains may replace airplanes on routes shorter than 200 miles. The maglev train developed by a German firm uses electromagnetic attraction to propel and levitate heavy vehicles, carrying up to 400 passengers at 300-mph speeds. But the j-inch gap between car and track is difficult to maintain [7,12,17]. The block diagram of the air-gap control system is shown in Figure P12.3.The compensator is (s + 0.02)' (a) Find the range of K for a stable system, (b) Select a gain so that the steady-state error of the system is less than 0.1 for a step input command, (c) Find y(t) for the gain of part (b). (d) Find y(t) when K varies 15% from the gain of part (b).
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