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arXiv · 1204.6178

Distributed Output-Feedback LQG Control with Delayed Information Sharing

Hamid Reza Feyzmahdavian·Ather Gattami·Mikael Johansson
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Abstract

This paper develops a controller synthesis method for distributed LQG control problems under output-feedback. We consider a system consisting of three interconnected linear subsystems with a delayed information sharing structure. While the state-feedback case has previously been solved, the extension to output-feedback is nontrivial as the classical separation principle fails. To find the optimal solution, the controller is decomposed into two independent components: a centralized LQG-optimal controller under delayed state observations, and a sum of correction terms based on additional local information available to decision makers. Explicit discrete-time equations are derived whose solutions are the gains of the optimal controller.

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Hamid Reza Feyzmahdavian, Ather Gattami, Mikael Johansson. 2012-04-27. Distributed Output-Feedback LQG Control with Delayed Information Sharing. https://arxiv.org/abs/1204.6178

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