Modified direct thrust control of linear permanent magnet motors with sensorless speed estimation
作者： M. A. M. Cheema , J. Fletcher , M. F. Rahman , D. Xiao
DOI: 10.1109/IECON.2012.6388910
关键词:
摘要: A modified direct thrust control of linear permanent magnet motor with sensorless estimation mover position and speed is presented. The improved based on decoupled flux in the stator frame using space vector modulation. regulation loop reference developed a linearized relation between load angle. errors are used as inputs to two PI controllers generate orthogonal components voltage frame. These further converted stationary by angle so that required can be generated modulation instead conventional switching table. This scheme retains all inherited advantages classical control. In this research angular estimated from without any or sensor. proposed approach experimentally validated its application prototype drive system laboratory. Practical results prove excellent response minimized ripple achieved technique. practical also demonstrate effectiveness estimation. Moreover constant frequency due
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