Method and circuit arrangement for optimally controlling an air

Details Method and circuit arrangement for optimally controlling an air Method and circuit arrangement for optimally controlling an air

1982-04-20

1985-03-19

Scherbel, David A.

Railways

Magnetically suspended car

Including means to sense or control car position or attitude...

104290, 318135, 318587, B61B 1308

Patent

active

045052069

ABSTRACT:
The air gap between the rail or rails and an electromagnetically levitated ehicle 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.

REFERENCES:
patent: 3549966 (1970-12-01), Wilson
patent: 3638093 (1972-01-01), Ross
patent: 3736880 (1973-06-01), Ross
patent: 3742862 (1973-07-01), Gebhardt et al.
patent: 3804024 (1974-04-01), Gottzein et al.
patent: 3861321 (1975-01-01), Goodnight et al.
patent: 3871301 (1975-03-01), Kolm et al.
patent: 3937148 (1976-02-01), Simpson
patent: 4140063 (1979-02-01), Nakamura

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