Position sensorless control of permanent magnet assisted synchronous reluctance motors

38th IAS Annual Meeting on Conference Record of the Industry Applications Conference, 2003. Pub Date : 2003-10-12 DOI:10.1109/IAS.2003.1257647

P. Guglielmi, M. Pastorelli, G. Pellegrino, A. Vagati

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引用次数: 7

Abstract

The sensorless control of permanent magnet assisted synchronous reluctance motors is faced, in order to conjugate the advantages of the sensorless control with full exploitation of the allowed operating area, for a given inverter. A d-axis pulsating flux is injected at low and zero speed, while it is drop-out, at large speed, to save voltage and additional loss. A flux-observer-based control scheme is used, which includes an accurate knowledge of the motor magnetic behavior. This leads, in general, to good robustness against load variations, by counteracting the magnetic cross saturation effect. Moreover, it allows an easy and effective correspondence between the wanted torque and flux and the set values of the chosen control variables, that is d-axis flux and q-axis current. Experimental verification of the proposed method is given, by pointing-out steady-state and dynamic performance as well. A prototype PMASR motor is used to this aim, as part of a purposely assembled prototype drive, for light traction application (electric scooter).

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永磁辅助同步磁阻电机的无位置传感器控制

为了将无传感器控制的优点与充分利用给定逆变器的允许工作面积相结合，研究了永磁辅助同步磁阻电动机的无传感器控制问题。在低速和零转速下注入d轴脉动磁通，在高速下退出d轴脉动磁通，以节省电压和额外损耗。采用基于磁链观测器的控制方案，其中包括对电机磁行为的精确了解。通常，通过抵消磁交叉饱和效应，这导致对负载变化具有良好的鲁棒性。此外，它允许所需的转矩和磁通与所选控制变量(即d轴磁通和q轴电流)的设定值之间的简单而有效的对应。并对该方法进行了实验验证，指出了该方法的稳态和动态性能。原型PMASR电机用于此目的，作为故意组装的原型驱动器的一部分，用于轻型牵引应用(电动滑板车)。

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38th IAS Annual Meeting on Conference Record of the Industry Applications Conference, 2003.

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