Modeling and Analyzing the Stability of an Induction Motor Drive System Using an Output LC Filter

Konferenz: PCIM Europe 2018 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
05.06.2018 - 07.06.2018 in Nürnberg, Deutschland

Tagungsband: PCIM Europe 2018

Seiten: 8Sprache: EnglischTyp: PDF

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Combes, Pascal; Jebai, Al Kassem (Schneider Electric, France)

Output LC filters are commonly used to filter the high frequency harmonics induced by PWM switching. Their effect is generally disregarded, as nonmodeled dynamics are handled by control law robustness. We show that the output filter can easily be modeled and be taken into account in the control design. We provide numeric stability analysis of control laws with or without current feedback. We also prove that it is more favorable to feed back the drive current than to feed back the motor current.