Title :
Analysis of chaos in current-mode-controlled DC drive systems
Author :
Chen, J.H. ; Chau, K.T. ; Chan, C.C.
Author_Institution :
Dept. of Electr. & Electron. Eng., Hong Kong Univ., Hong Kong
fDate :
2/1/2000 12:00:00 AM
Abstract :
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
Keywords :
DC motor drives; chaos; control system analysis; electric current control; iterative methods; machine control; machine theory; stability; chaos analysis; computer simulation; control simulation; current-mode-controlled DC motor drive; experimental measurement; fundamental oscillations; iterative map; nonlinear system dynamics; stability analysis; subharmonic oscillations; Chaos; Computer simulation; Nonlinear dynamical systems; Power electronics; Power system modeling; Pulse width modulation inverters; Stability analysis; Switching converters; Torque control; Voltage;
Journal_Title :
Industrial Electronics, IEEE Transactions on
