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Good design practices in permanent magnets motors

Good design practices in permanent magnets motors

Good design practices in permanent magnets motors

(OP)
I want to analyze in ANSOFT Maxwell® several topologies for a linear motor using permanent magnets. I am a mechanical engineer and I am looking for a good reference regarding good design practices. Specifically, I want to know if a motor with coils and permanent magnets in the stator is something that can work or, at the other hand, somebody has discovered that this idea does not work at all.

RE: Good design practices in permanent magnets motors

I can recommend several books but first, with windings and magnets in the stator, what moves?

RE: Good design practices in permanent magnets motors

(OP)
Both are static. The rotor has windings too.

RE: Good design practices in permanent magnets motors

The only time I have seen windinds in the stator is to use the windings to "Buck" and reduce the Field Strength from the permanent magnets.  The purpose is to reduce the Voltage Constant [BEMF constant, Kv]to allow higher speed during fast point to point moves.  With no current to the stator windings, the Force Constant, Kf, would remain high.

But the electronic [Zero Cost] way to do the same thing is to shift the phase of the drive currents.  A two to one speed increase can be easilly accomplished.

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