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Distributed multi-hop reactive power compensation in smart micro-grids subject to saturation constraints

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6 Author(s)
Saverio Bolognani ; Dept. of Information Engineering, University of Padova, Italy ; Andrea Carron ; Alberto Di Vittorio ; Diego Romeres
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In this paper we address the problem of exploiting the distributed energy resources (DER) available in a smart micro-grid to minimize the power distribution losses via optimal reactive power compensation. Due to their typically small size, the amount of reactive power provided by each micro-generator is subject to tight saturation constraints. As a consequence, it might be impossible to achieve convergence to the global optimum based on algorithms that rely on short-range, gossip-type communication. We therefore propose a randomized multi-hop protocol that guarantees convergence of the distributed optimization algorithm also when only short-range communications are possible, at the expense of some additional communication overhead.

Published in:

2012 IEEE 51st IEEE Conference on Decision and Control (CDC)

Date of Conference:

10-13 Dec. 2012