Research on high efficiency direct — Drive motor of 200kW level electric power

According to the characteristics of ship propulsion, the external load characteristics of the direct drive motor are analyzed. The overall design of the propulsion motor is taken as the starting point, and the optimal design of the electromagnetic loss is deduced. From the point of iron loss, copper loss and harmonic loss, to reduce the mechanical loss of the motor; From the point of bearing friction loss and rotor wind friction loss, the optimal design is taken to the motor to reduce the mechanical loss; analyze the technical feasibility by analyzing the test data.