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HIGH PERFORMANCE VECTOR POSITION CONTROL OF A HELICAL RELUCTANCE MOTOR FOR AN ULTRA PRECISION LATHE
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| Author(s) |
S. Brückl |
| Abstract |
For the Helical Reluctance Motor (HRM), which is a linear direct drive for long distance motions with a
positioning accuracy in the submicrometer range, a model of the motor with a non-laminated and a laminated rotor has been derived and validated by numerous experiments. A field oriented digital current control both in the stator and rotor fixed coordinate frame have been designed and implemented on a DSP system achieving an equivalent time constant
of 100 ps. A superimposed state feedback and cascaded position control have been investigated. The HRM has been applied as a feed drive in an ultra precision lathe. An equivalent time constant of 12 ms for the closed loop position control and a dynamic stiffnes of 18 N/um have been achieved. |
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| Filename: | Unnamed file |
| Filesize: | 499.6 KB |
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| Type |
Members Only |
| Date |
Last modified 2016-03-14 by System |
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