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为了消除摩擦阻力并简化系统结构,实现多电航空发动机的稳定悬浮运行,本文研究了一种具有独立的转矩和悬浮力极的双定子无轴承开关磁阻电机。推导了电机悬浮力的数学模型,通过与有限元计算结果的对比证明所建立解析表达式的正确性。搭建了实验平台,实验结果证明了电机在运行过程中转子能够稳定地悬浮在中心位置,并且转矩控制与悬浮力控制可以自然解耦,实现独立可控的磁悬浮运行。
In order to eliminate the frictional resistance, simplify the system structure and realize the stable suspension operation of the multi-electric aeroengine, a two-stator bearingless switched reluctance motor with independent torque and levitation pole is studied in this paper. The mathematical model of the levitation force of the motor is derived. The correctness of the analytical expression established is verified by comparison with the finite element calculation. The experimental platform is set up. The experimental results show that the rotor can stably float in the center during the operation of the motor, and the torque control and levitation force control can be naturally decoupled to realize the independent and controllable maglev operation.