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The Reluctance Motor Springs Forth - August 2014

Dan Jones

The article "The Reluctance Motor Springs Forth" appeared in the August 2014 issue of Power Transmission Engineering.

Summary
There are three major types of reluctance motors: all three reluctance motors are non-permanent magnet, brushless motors. They are synchronous motors with a non-linear relationship between torque and current. The variable-reluctance step and switched-reluctance motors utilize the principle of magnetic attraction by inducing magnet poles within the soft-iron rotor, and by energizing a set of coils wound around stator teeth resident in the laminated stator. These two reluctance motors must be sequentially excited to achieve continuous, steady-state rotation. The design of all reluctance motors requires finite element analysis (FEA) software.

Keywords
motors, reluctance motors, switched-reluctance motor, synchronous reluctance motor

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