Advantages of Inset PM Machines for Zero-Speed Sensorless Position Detection
Advantages of Inset PM Machines for Zero-Speed Sensorless Position Detection
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DOI：
10.1109/ias.2006.256565
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发表时间：
2006-12
影响因子：
4.4
通讯作者：
Nicola Bianchi;S. Bolognani;Jihoon Jang;S. Sul
中科院分区：
文献类型：
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作者：
Nicola Bianchi;S. Bolognani;Jihoon Jang;S. Sul
本文的目的是分析基于高频信号注入结合嵌入式永磁（PM）电机的无位置传感器控制系统的行为。采用在定子基波电压上叠加高频信号的控制系统，可以实现各向异性转子永磁同步电动机转子位置的检测。相应的高频电流由转子各向异性调制，并用于确定转子位置。这些技术在零和低电机速度下是有效的。饱和和交叉耦合对正确的转子位置检测有很大的影响。为了突出无传感器技术的有效性，在各种操作条件下进行测试。
The aim of this paper is to analyze the behavior of a sensorless control system based on a high-frequency signal injection combined with an inset permanent-magnet (PM) motor. The rotor position of a synchronous PM motor with anisotropic rotor can be detected by the control system which superimposes a high-frequency signal to the fundamental stator voltage. The corresponding high-frequency current is modulated by the rotor anisotropy and used to determine the rotor position. These techniques are effective at zero and at low motor speed. Both saturation and cross-coupling have a heavy influence on the correct rotor position detection. In order to highlight the effectiveness of the sensorless technique, the tests are carried out at various operating conditions.