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arXiv · 1904.08840

Plug-and-play Solvability of the Power Flow Equations for Interconnected DC Microgrids with Constant Power Loads

Mark Jeeninga·Claudio De Persis·Arjan J. van der Schaft
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Abstract

In this paper we study the DC power flow equations of a purely resistive DC power grid which consists of interconnected DC microgrids with constant-power loads. We present a condition on the power grid which guarantees the existence of a solution to the power flow equations. In addition, we present a condition for any microgrid in island mode which guarantees that the power grid remains feasible upon interconnection. These conditions provide a method to determine if a power grid remains feasible after the interconnection with a specific microgrid with constant-power loads. Although the presented condition are more conservative than existing conditions in the literature, its novelty lies in its plug-and-play property. That is, the condition gives a restriction on the to-be-connected microgrid, but does not impose more restrictions on the rest of the power grid.

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Mark Jeeninga, Claudio De Persis, Arjan J. van der Schaft. 2019-04-18. Plug-and-play Solvability of the Power Flow Equations for Interconnected DC Microgrids with Constant Power Loads. https://arxiv.org/abs/1904.08840

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