Lust Antriebstechnik Gmbh

Peter Jenckel

Reto Sch&ouml;b

Hans-Georg Reiter

A magnetic bearing apparatus for the journalling of a body (,), in particular of a rotor (,), comprises a stator (,) with a control winding (,) having at least three loops (,) for the production of a magnetic control field by means of which the position of the body (,) relative to the stator (,) can be regulated, with each loop (,) belonging to a different electrical phase, and a control device (,) which in a first operating mode supplies each loop (,) with in each case a phase current (Ia, Ib, Ic) or in each case a phase voltage (Ua, Ub, Uc) as a control parameter. Means are provided in order to regulate the control parameter for each loop (,) independently of the control parameter for the other loops (,) as well as a monitoring unit (,) which can switch the bearing apparatus into a second operating mode in which a reduced number of phases, which is at least two, produces the magnetic control field.

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Zürich, Switzerland

Peter Jenckel