On the minimal set of controllers and sensors for linear power flow

We consider a linear power flow model with interval-bounded nodal injections and limited line flows. determine the minimal number of to control based on set measurements, such that overall system is feasible for all assignments non-controlled injections. For important case where possible measurements are injections, we show problem can be solved efficiently as mixed-integer program (MILP). When also flows considered potential derive an iterative, greedy algorithm provides feasible, but potentially conservative solution. apply developed algorithms both simple microgrid modified version IEEE 118 bus test system. in cases sparse solution terms required controllers obtained. Moreover, reduced significantly if additionally