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Improving the Stability of Cascaded DC-DC Converter Systems via the Viewpoints of Passivity-Based Control and Port-Controlled Hamiltonian Framework

Abstract : It is known that the interactions between individually designed subsystems in cascaded can yield instability. To ensure the system stability, the Passivity-Based Controller (PBC) called Interconnection and Damping Assignment Passivity-Based Control (IDA-PBC) is addressed in this paper. The stability of the cascaded systems are proved via using the Hamiltonian function (storage function) as the Lyapunov candidate function. Especially the dynamic and the potential instability caused by the LC filter are regulated by rendering the LC filter into the Hamiltonian framework of the controlled subsystem. The performance of the proposed approach are illustrated in simulation and experiment.
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Conference papers
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https://hal.univ-lorraine.fr/hal-02410072
Contributor : Jean-Philippe Martin Connect in order to contact the contributor
Submitted on : Friday, December 13, 2019 - 4:33:32 PM
Last modification on : Wednesday, November 3, 2021 - 7:10:18 AM

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Shengzhao Pang, Babak Nahid-Mobarakeh, Serge Pierfederici, Jean-Philippe Martin, Yigeng Huangfu, et al.. Improving the Stability of Cascaded DC-DC Converter Systems via the Viewpoints of Passivity-Based Control and Port-Controlled Hamiltonian Framework. 2019 IEEE Industry Applications Society Annual Meeting, Sep 2019, Baltimore, United States. pp.1-6, ⟨10.1109/IAS.2019.8911961⟩. ⟨hal-02410072⟩

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