Article | REF: D3696 V1

Permanent magnet commutator actuators (part 2)

Author: Alain MOUILLET

Publication date: November 10, 2007

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1. Technology solutions

1.1 Justification

Among the operating constraints of electric actuators, the following should be highlighted:

  • low mechanical inertia;

  • high acceleration (short start-up time);

  • high shaft torque immediately available;

  • a large thermal time constant ;

  • high reliability.

Optimal solutions to these constraints often lead to contradictory technological designs.

  • Electromechanical power is related to machine dimensions by the Arnolds constant [4]...

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