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Analysis of chaos in current-mode-controlled DC drive systems

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3 Author(s)
Chen, J.H. ; Dept. of Electr. & Electron. Eng., Hong Kong Univ., Hong Kong ; Chau, K.T. ; Chan, C.C.

In this paper, chaotic behavior in current-mode-controlled dc drive systems has been analyzed. The key is to derive an iterative map that describes the nonlinear system dynamics. Analytical modeling of fundamental and subharmonic oscillations as well as their stability analysis are presented. The results show that current-mode-controlled DC motor drive systems generally exhibit chaotic behavior. To avoid the occurrence of chaos, the stable ranges of various system parameters are determined. Both computer simulation and experimental measurement are given to verify the theoretical analysis

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Industrial Electronics, IEEE Transactions on  (Volume:47 ,  Issue: 1 )