Sensorless position-control method based on magnetic saliencies for a Long-Stator Linear Synchronous-Motor

作者: Roberto Leidhold , Peter Mutschler

DOI: 10.1109/IECON.2006.347699

关键词: Machine controlSignal injectionPosition (vector)StatorLinear motorPosition controlInductanceAC powerEngineeringControl theory

摘要: A sensorless method based on evaluating magnetic saliencies by HF signal injection is investigated for Long-Stator Linear Synchronous-Motors. For long carriageways, the stator divided into several independently fed segments, in order to reduce reactive power and allow more than one vehicle move same carriageway. This kind of linear motors present difficulties, not found rotative ones, implement methods. instance, due end-effect stator, stationary arise which interfere with position detection. In addition, dependent inductance each segment non-periodic. Therefore information from must be synchronized adjacent when mover passes over a transition. this paper, position-control providing means overcome transition proposed. It was tested an experimental setup performance results are shown.

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