关键词: 大惯量负载, 异步电动机, 高起动转矩, 刀形槽

Abstract:

Aiming at the problem of poor starting performance of ordinary three-phase induction motor under heavy inertia loads, a kind of drive motor for large inertia load was designed. The rotor slot shape of an ordinary three-phase induction motor load was designed. A scheme for adding permanent magnets to the rotor was proposed. Two kinds of rotor magnetic circuit structure and three distances between the permanent magnet and the axis were designed. The results of the finite element simulation and Simulink simulation proved that the optimized motor can have high starting torque and low cost.

Key words: large inertia load, induction motor, high starting torque, knife shaped slot