The paper presents a comparison between four different design strategies with the aim to improve the efficiency of three-phase induction motors: substitution of die-caste copper cage for aluminium cage with standard and “premium” electrical steels; design optimisation of copper cage motor by changing the stator winding and the stack length only; design optimisation of copper cage motor by changing the stator winding, the stack length and the stator and rotor slot shapes. The comparison is based on the actual efficiency improvements, the arrangement of the motors respect to the European Classification Scheme (EC/CEMEP), the contribution of each material and innovative technology. The results concern with 4 pole, 50 Hz, 400 V, TEFC, 3 and 15 kW induction motors.

Design Strategies, New Materials and Technologies to Improve Induction Motors Efficiency

PARASILITI COLLAZZO, Francesco
2005-01-01

Abstract

The paper presents a comparison between four different design strategies with the aim to improve the efficiency of three-phase induction motors: substitution of die-caste copper cage for aluminium cage with standard and “premium” electrical steels; design optimisation of copper cage motor by changing the stator winding and the stack length only; design optimisation of copper cage motor by changing the stator winding, the stack length and the stator and rotor slot shapes. The comparison is based on the actual efficiency improvements, the arrangement of the motors respect to the European Classification Scheme (EC/CEMEP), the contribution of each material and innovative technology. The results concern with 4 pole, 50 Hz, 400 V, TEFC, 3 and 15 kW induction motors.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11697/27022
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