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Implementation of Redundancy in a Miniature Stepper Motor

Implementation of Redundancy in a Miniature Stepper Motor
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Implementation of Redundancy in a Miniature Stepper Motor - 1

FAULHABER Tutorial Implementation of Redundancy in a Miniature Stepper Motor

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Implementation of Redundancy in a Miniature Stepper Motor - 2

Implementation of Redundancy in a Miniature Stepper Motor Some of the recent research activities in the area of electric motor drives for critical applications (such as aerospace and nuclear power plants) are focused on looking at various fault tolerant motor and drive topologies. After discussing different solutions, this paper focuses on a miniature PM stepper motor design which falls in this fault tolerant category by providing an increased redundancy.

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Implementation of Redundancy in a Miniature Stepper Motor - 3

Implementation of Redundancy in a Miniature Stepper Motor Safety critical systems are taking on increasing impor What solutions are offered? tance in the industrial world. Some examples of such systems are aerospace, transportation, medical and Coupling two motors on the same shaft (Figure 1) is military applications, and nuclear power plants. what comes normally to one’s mind first. Although These all accommodate a number of electric motor its implementation is straightforward, this solution drives installed to a point where the plants rely heavily presents several limitations to be...

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Implementation of Redundancy in a Miniature Stepper Motor - 4

Implementation of Redundancy in a Miniature Stepper Motor Figure 2: FAULHABER Disc Magnet motor with redundant windings The existence of FAULHABER Disc Magnet motors simplifies the quest for redundancy capability. By default, this patented motor design features 4 win The specific and patented design of some existing small dings which are normally connected by pair to form miniature motor (down to Ø6mm) meets, with very a TwoPhase stepper motor. A customised solution little adaptation, the specifications for a fault-tolerant, letting the 4 windings independent from each other robust,...

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