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Widening the stability range of a PWM inverter using a nonparametric chaos control
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| Author(s) |
B. Robert; H.H.C. Iu; M. Feki |
| Abstract |
Out of their usual operating zones, many static converters can exhibit undesirable aperiodic
behaviours. Sometimes chaotic and strange attractors appear and must be avoided by an appropriate
control. Usual correctors fail to stabilize unstable periodic orbits (UPOs) embedded in the chaotic
zones. Specific methods must be used in order to control chaos. However, most of them need a precise
knowledge of the model in order to investigate the nonlinear dynamics. Thus, they are not robust
because of their dependence on the parameters of the model. In this paper, a simple corrector is
improved to stabilize the fundamental periodic operating mode by using a robust model free chaos
control. The converter under control is a current programmed inverter driven by a low frequency
reference. The stability range is approximately doubled and the sampled current error is reduced. |
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| Filename: | EPE2003-PP0282 - Robert |
| Filesize: | 463.8 KB |
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| Type |
Members Only |
| Date |
Last modified 2003-10-15 by Unknown |
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