Switched Reluctance Motors
The switched reluctance motor (SRM) is a type of stepper motor, in which the rotor is made of laminated silicon steel sheet with double salient poles and no windings or permanent magnets. The electrical power is delivered to windings positioned around the stator. The magnetic reluctance of the rotor results in its poles aligning with an energised stator winding. By using an electronic switching circuit to sequentially energise the windings around the stator, the rotor is “pulled” by the forces relating to its magnetic reluctance and hence rotates. The motor provides high torque with low starting current and allows regular starting, stopping and directional changes making it ideal for a wide variety of applications.
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