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首页> 外文期刊>Industrial Electronics, IEEE Transactions on >Enhanced Self-Sensing Capability of Permanent-Magnet Synchronous Machines: A Novel Saliency Modulation Rotor End Approach
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Enhanced Self-Sensing Capability of Permanent-Magnet Synchronous Machines: A Novel Saliency Modulation Rotor End Approach

机译：永磁同步电机增强的自检测能力：一种新颖的显着性调制转子端方法

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摘要

This paper investigates a novel rotor configuration of a permanent-magnet synchronous machine (PMSM) in which a saliency modulation rotor end is added to the machine rotor to improve the self-sensing capability. The saliency-based self-sensing control method is widely adopted for position estimation at stand-still and low speed range. However, the performance is heavily affected by saturation effects for conventional PMSMs, because the machine saliency variates with increased fundamental stator flux under loaded operation. The proposed scheme provides an additional space anisotropic to the rotor. Saliency modulation of the rotor end is electrically asynchronous with the machine fundamental reference frame. Hence the tracked machine saliency provided by the rotor end is no longer affected by saturation effects. In addition, for medium and high speed ranges, the rotor end saliency can be modulated with the fundamental voltage and the rotor position can be tracked without superposed injection. A genetic algorithm optimization environment joined with finite element analysis allows obtaining optimized rotor end geometry for better position signal quality. The expected self-sensing performance is validated by experimental results.
机译：本文研究了一种永磁同步电机（PMSM）的新型转子配置，其中在电机转子上增加了显着性调制转子端以提高自感应能力。基于显着性的自感应控制方法被广泛用于静止和低速范围内的位置估计。但是，对于常规PMSM，其性能会受到饱和效应的严重影响，因为在负载运行下，电机的显着性会随着定子磁通的增加而变化。所提出的方案为转子提供了各向异性的附加空间。转子端的显着性调制与电机基本参考系电气异步。因此，由转子端提供的跟踪的机器显着性不再受饱和效应的影响。此外，对于中，高速范围，转子端凸度可以通过基本电压进行调节，并且无需叠加喷射就可以跟踪转子位置。遗传算法优化环境与有限元分析相结合，可以获取优化的转子端部几何形状，以获得更好的位置信号质量。实验结果验证了预期的自感应性能。

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