Design of permanent magnets to chaoize doubly salient permanent magnet motors for electric compaction


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    • IEEE  status
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      Views: (2007)   Date: (Publication Date: Apr 2006)   Pages: ()
    • Author:  Chau  K. T. Wang  Zheng Department of Electrical and Electronic Engineering  The University of Hong Kong  Hong Kong  China;  

    • Abstract:  Abstract This article proposes and implements a class of chaotic motors for electric compaction. The key is to develop a design approach for the permanent magnets (PMs) of doubly salient PM (DSPM) motors in such a way that chaotic motion can be naturally produced. The bifurcation diagram is employed to derive the threshold of chaoization in terms of PM flux, while the corresponding phase-plane trajectories are used to characterize the chaotic motion. A practical three-phase 12/8-pole DSPM motor is used for exemplification. The proposed chaotic motor is critically assessed for application to a vibratory soil compactor, which is proven to offer better compaction performance than its counterparts. Both computer simulation and experimental results are given to illustrate the proposed chaotic motor.

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