双绕组永磁同步电机的设计及在客车上的应用

综合客车整车的动力性和经济性,再结合电机热平衡管理和冗余设计理念,研发了一种大功率大扭矩高效双绕组永磁同步电机。通过精准设计双绕组电机定转子结构,实现电机双源输出。扭矩叠加,整车动力性大幅提升,同时形成转矩耦合高效区,拓宽电机整体高效区占比,降低整车能耗,提高整车经济性。通过优化控制策略,实现电机两套绕组的分时驱动,确保电机温升和损耗始终处于较低状态,并保障了整车动力的不间断运行。

The design and application of the double-winding permanent magnet synchronous motor

In this paper,the dynamic and economical performance of the integrated bus is combined with the concept of heat balance management and redundancy design of the motor,and a high-power and high-torque high-efficiency double-winding permanent-magnet synchronous motor is developed.By accurately designing the rotor structure of the double-winding motor,the double-source output and the torque superposition of the motor are realized,the power performance of the whole vehicle is greatly improved,the torque-coupling high-efficiency area is formed,the proportion of the whole high-efficiency area of the motor is widened,the energy consumption of the whole automobile is reduced,and the economy of the whole vehicle is improved.By optimizing the control strategy,the time-sharing driving of the two sets of windings of the motor is realized,so that the temperature rise and the loss of the motor are always in a lower state,and the uninterrupted operation of the whole vehicle power is ensured.