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Magnet flux optimization method for Line-Start Permanent Magnet motors

机译:线启动永磁电动机的磁通优化方法

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摘要

The use of induction motors is the right choice for a great number of household appliances which look for cost-competitive solutions. Therefore, in the past few years, the energy consumption became also an important issue which drives the design of electrical motors, although, permanent magnet motors came to stay. Most of the solutions which are significantly efficient to worth using have also a high cost due to electronics, and among the few options that can be used on this kind of application is the line-start permanent magnet (LSPM) motor. This paper shows a simple design procedure to increase the net flux generated by the magnets maximizing the magnet short-circuit reluctance and reducing the flux loss in the rotor slot bridges. This method can be used to reduce the magnet volume, also reducing the total cost of the motor, which can contribute to make the LSPM motor a real option to substitute the induction motors in the future. The LSPM motor is analyzed using a 2D finite element method and the rotor movement is modeled by means of the moving band. This approach allows to investigate the influence of design variations on the dynamic behaviour of the LSPM motor.
机译:对于寻求成本竞争解决方案的众多家用电器,使用感应电动机是正确的选择。因此,在过去的几年中,尽管永磁电动机仍然存在,但是能耗仍然成为驱动电动机设计的重要问题。由于电子设备,大多数非常值得使用的解决方案也具有很高的成本,并且在此类应用中可以使用的少数选择中有线路启动永磁(LSPM)电动机。本文展示了一种简单的设计过程,可以增加磁体产生的净磁通量,从而最大化磁体的短路磁阻并减少转子槽桥中的磁通量损耗。此方法可用于减少磁体体积,也可降低电动机的总成本,这有助于使LSPM电动机成为将来替代感应电动机的真正选择。使用2D有限元方法分析LSPM电动机,并通过运动带对转子运动建模。这种方法可以研究设计变化对LSPM电机动态行为的影响。

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