DC link operation in smart distribution systems with communication interruptions

A fast algorithm for manipulation control process of distribution system planning solution

“…where P DC;t and Q DC;t are the P/Q injections of DC terminal; C DC is the capacity of a DC terminal; P tot;t is the overall active power of an OLTC transformer; C LTC is the capacity of an OLTC transformer; H iDC and K iDC are the power flow sensitivities of DC terminal; and G PL ðÁÞ and G QL ðÁÞ are the incremental P/Q loss functions of nodal P/Q injection increments. The (15) represents constraints on the apparent power capacity of the DC interlink, correction of voltage problems, and the constraint that the apparent power should be less than the capacity of the LTC transformer after the effect of DC injections on power losses are added to LTC transformer load.…”

“…The problems will be then compensated by reducing active power consumption of the DC terminal. We can use (15) to recalculate DP B DC;t ; DQ B DC;t after updating the EV loads.…”

“…Reference [14] proposes a comprehensive configuration of DGs and EV charging stations to suppress renewable fluctuations based on the existing literature. In addition, the system loadability has been analyzed in the presence of DC interlinks [3,15]. But in the future, the increasing integration of many distributed energy resources should be fully considered in the planning solution.…”