Method for voltage control of the magnets of a magnetically levitated railroad and associated control unit
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United States of America Patent
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Sep 19, 1989
Grant Date -
N/A
app pub date -
Jul 23, 1987
filing date -
Jul 23, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for controlling a magnet of a magnetically levitated railroad, wherein at least three variables are used which are acquired in an observer unit (support circuit) based on the measured magnitudes for the magnetic gap width s, as well as the magnetic acceleration b; to improve the following behavior of the magnetically levitated vehicle without increasing the background noise component, an additional rail signal is feed to the controller of the individual magnets, which rail signal is respectively obtained by a rail observer unit from the measured magnitudes of the magnet gap width and the magnet acceleration of one of the magnets which is leading in a travel direction in such a way that it represents a noiseless rail signal with a correct phase in the useful frequency range as referred to the respectively trailing magnets.
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