Local Synchronization of Two DC/AC Converters Via Matching Control

Taouba Jouini, Florian Dorfler

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We address the problem of local synchronization of two DC/AC converters connected via a RL line in closed-loop with machine matching control by pursuing a novel approach for the assessment of small-signal stability. Our method is defined using an oblique projection. We use this Lyapunov function to obtain a local stability certificate in the neighborhood of a well-defined set of equilibria characterized by frequency synchronization. To this end, we first reduce the fifth-order DC/AC converter model to a third-order one. Then, we investigate local stability based on Lyapunov's method performed on the linearized and reduced-order model. Moreover, we certify stability via sufficient and fully decentralized conditions that can be satisfied by choosing an appropriate operating point and control gains. Finally, we demonstrate our results using numerical simulations.
Titel på gästpublikation18th European Control Conference, ECC 2019
StatusPublished - 2019 jun
Evenemang18th European Control Conference, ECC 2019 - Naples, Italy, Naples, Italien
Varaktighet: 2019 jun 252019 jun 28


Konferens18th European Control Conference, ECC 2019

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