부산대학교 도서관

In response to the problem of slow heat dissipation during the operation of permanent magnet synchronous motors, the cooling structure has been improved based on the principle of convective heat transfer. Under the premise of ensuring the same water inlet speed, by changing the number of inlet and outlet of the cooling water channel, the cooling water circulation is accelerated, and significantly enhanced motor heat dissipation effect. The finite element method and unidirectional field circuit coupling method are used to conduct simulation research on the motor. The research results show that the new cooling water channel structure, multiple inlet and outlet cooling water channel structure, can make the permanent magnet synchronous motor temperature lower and have better heat dissipation effect. The research findings can provide an effective solution option for the cooling of high power permanent magnet synchronous motor.