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Bifurcation Analysis and Stabilization of DC Power Systems for Electrified Transportation Systems

Abstract : Tightly controlled power converters are often modeled as constant power load. In transportation system, the input filters are small and not much damped to save weight/volume. In order to know when the system becomes unstable with those small LC filters and high cut-off frequency, the conventional analysis based on an average model may not be accurate enough. In this paper, a new discrete-time model is proposed to investigate the behavior of the studied system and to take into account the switching effect. A stabilizer is also proposed to increase the maximum power. This system is composed of a dc-dc boost converter with a modified control, an LC filter, and a constant power load. Experimental results confirm the validity of the proposed tool.
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https://hal.univ-lorraine.fr/hal-01384183
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Submitted on : Wednesday, October 19, 2016 - 2:58:46 PM
Last modification on : Friday, June 4, 2021 - 9:18:03 AM

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Louis-Marie Saublet, Roghayeh Gavagsaz-Ghoachani, Jean-Philippe Martin, Babak Nahid-Mobarakeh, Serge Pierfederici. Bifurcation Analysis and Stabilization of DC Power Systems for Electrified Transportation Systems. IEEE Transactions on Transportation Electrification, Institute of Electrical and Electronics Engineers, 2016, 2 (1), pp.86 - 95. ⟨10.1109/TTE.2016.2519351⟩. ⟨hal-01384183⟩

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