Speed Sensorless Control of a Surface-mounted Permanent Magnet Drive
Speed Sensorless Control of a Surface-mounted Permanent Magnet Drive
复制标题
表面安装永磁驱动器的无速度传感器控制
DOI：
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发表时间：
2019
期刊：
影响因子：
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通讯作者：
Y. Zbede
中科院分区：
文献类型：
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作者：
X. Zhang;A. Bodrov;J. Apsley;A. Semjonovs;Y. Zbede
永磁同步电机是电动汽车推进的一种流行选择，其内部和表面磁铁转子设计都在使用。换相需要位置反馈，相位延迟最小。速度数据应该能够跟踪车辆在最大加速时的速度。消除轴位置传感器降低了成本并提高了可靠性，但由于缺乏显著性，对于低速的表面磁体机器来说可能是一个挑战。然而，面包面包和插入磁体提供了足够的显著性，使信号注入位置估计方案可行。在一台3.27kW商用机器上，采用低速信号注入和高速过渡到一种新的模型参考自适应系统反电动势估计方案的实验结果，该方案采用迭代搜索算法来减少位置跟踪延迟。解释了选择滤波器频率和调谐增益的基本原理。
Permanent magnet synchronous machines are a popular choice for electric vehicle propulsion, with both interior and surface magnet rotor designs in use. Position feedback is required for commutation, with minimal phase delay. Speed data should be able to track the vehicle speed at maximum acceleration. Elimination of the shaft position sensor reduces cost and improves reliability, but can be challenging for surface magnet machines at low speeds, due to their lack of saliency. However, bread-loaf and inset magnets give sufficient saliency to make signal injection position estimation schemes viable. Experimental results are presented for a commercial 3.27kW machine, using signal injection at low speeds and transitioning to a novel model reference adaptive system back emf estimation scheme at high speeds, which employs an iterative search algorithm to reduce position tracking delays. The rationale for selection of filter frequencies and tuning gains is explained.