Method and circuit arrangement for optimally controlling an air gap between an electromagnetically levitated vehicle and a rail
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United States of America Patent
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Mar 19, 1985
Grant Date -
N/A
app pub date -
Apr 20, 1982
filing date -
May 7, 1981
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The air gap between the rail or rails and an electromagnetically levitatedehicle is optimally controlled with regard to the power or energy consumption. This result is achieved by a control employing two control channels. One control channel is constructed as a non-linear support or guide controller for regulating or contolling the air gap width in response to disturbances of short duration. The other control channel is constructed to cause a reduction of the air gap width or rather of the rated air gap width for adapting of the air gap width to the spectrum and amplitude distribution of the disturbances to which the levitated vehicle is exposed. This type of control may be employed for the regulating of the air gap between the support magnets and the respective rail and also for controlling the air gap between the guide magnet and the respective rail to reduce the energy required for maintaining these air gaps at an optimally efficient width.
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