复合笼条转子感应电动机转子槽形的优化设计

Induction motor with compound cage rotor (IMCCR) adopts copper iron alloy at the upper rotor conducting bar and uses cast aluminum material of ordinary squirrel cage induction motor at the upper rotor conducting bar. In this paper, rotor slot shape of a 3.75 kW, 4 poles, 60 Hz IMCCR is optimized and designed. Due to the particularity of its rotor structure, rotor conducting bar is compounded by two different materials. There is different when the rotor slot type compare with common induction motor rotor slot shape, so the optimization design of the rotor slot type and size is needed. The influence of different rotor slot shape on the motor starting performance is studied, which verifies the rationality of rotor slot shape optimization design, and then the motor starter magnetic field distribution are analyzed, which provides a certain basis for IMCCR r optimization design.