Patent Document ID: 9954362
Application ID: 14722075
Patent Flag: 1

Claim One:
1. A node controller, comprising: a network interface; a processor; a memory containing: a distributed power control application and a plurality of node operating parameters; wherein the distributed power control application, when executed by the processor, is configured to: model a power distribution network as a radial network comprising a plurality of nodes and lines connecting the nodes, wherein node controllers are associated with processing nodes among the plurality of nodes, and the plurality of nodes include at least one of power stations, substations, distributed power generation, and end user loads, and wherein the lines of the radial network include transmission and distribution lines, and the plurality of nodes in the radial network comprise at least one ancestor node and at last one child node; calculate an optimal power flow for the power distribution network by performing a closed form solution that creates sub-problems solved concurrently by the node controllers of the processing nodes using the node operating parameters that include power injections, voltages, load impedances, branch currents, and branch power flows of the power distribution network that are determined by the node controllers of the processing nodes; wherein creating sub-problems comprises decoupling nodes and partitioning the radial network into even and odd layers, and wherein solving the sub-problems further comprises using an iterative process of alternating method of multipliers (ADMM) comprising minimizing an augmented Lagrangian for an augmented relaxed optimal power flow (ROPF) expression in the closed form solution to calculate updated node operating parameters using the determined node operating parameters which are sent and received as requested and required between the node controller and its ancestor and children nodes for the concurrent solving; and perform at least one of changing voltages in the power distribution network, redistributing bulk power in the power distribution network, and controlling power or voltage injections to the power distribution network, based on the optimal power flow calculation.