droop control
We establish topological and parametric conditions under which phase angles across three identical impedances can be balanced with small-signal stability guarantees when served from three single-phase sources executing active-power frequency droop control. All standard topologies involving Delta and Wye interconnections of sources and loads are examined.
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This letter proposes a virtual slack bus Newton-Raphson power flow (VSB-NRPF) algorithm serving for the PF analysis of droop-controlled medium-voltage direct current (MVDC) systems operating in islanded mode without a slack bus. In the proposed algorithm, one of the original power, current, power/voltage and current/voltage buses is assumed to be a virtual slack bus with an initial rated dc voltage, the value of which is corrected based on the actual PF balance equation at the original bus.
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